Bgs Sym Index V3

Cartographic standard geological symbol index Version 3 Publications Production Research Report RR/01/01

BRITISH GEOLOGICAL SURVEY

RESEARCH REPORT RR/01/01

Cartographic standard geological symbol index Version 3

C H Mawer

Key words Geological map; symbols; area ornaments; line styles. Bibliographical reference MAWER C H. 2002. Cartographic standard geological symbol index. Version 3. British Geological Survey Research Report, RR/01/01. 49pp. ISBN 085272 402 0 © NERC 2002

Keyworth, Nottingham British Geological Survey 2002

BRITISH GEOLOGICAL SURVEY The full range of Survey publications is available from the BGS Sales Desks at Nottingham, London and Edinburgh; see contact details below or shop online at www.geologyshop.com The London Information Office also maintains a reference collection of BGS publications including maps for consultation. The Survey publishes an annual catalogue of its maps and other publications; this catalogue is available from any of the BGS Sales Desks. The British Geological Survey carries out the geological survey of Great Britain and Northern Ireland (the latter as an agency service for the government of Northern Ireland), and of the surrounding continental shelf, as well as its basic research projects. It also undertakes programmes of British technical aid in geology in developing countries as arranged by the Department for International Development and other agencies. The British Geological Survey is a component body of the Natural Environment Research Council.

Keyworth, Nottingham NG12 5GG ( 0115-936 3241 Fax 0115-936 3488 e-mail: [email protected] www.bgs.ac.uk Shop online at: www.geologyshop.com Murchison House, West Mains Road, Edinburgh EH9 3LA ( 0131-667 1000 Fax 0131-668 2683 e-mail: [email protected] London Information Office at the Natural History Museum (Earth Galleries), Exhibition Road, South Kensington, London SW7 2DE ( 020-7589 4090 Fax 020-7584 8270 ( 020-7942 5344/45 email: [email protected] Forde House, Park Five Business Centre, Harrier Way, Sowton, Exeter, Devon EX2 7HU ( 01392-445271 Fax 01392-445371 Geological Survey of Northern Ireland, 20 College Gardens, Belfast BT9 6BS ( 028-9066 6595 Fax 028-9066 2835 Maclean Building, Crowmarsh Gifford, Wallingford, Oxfordshire OX10 8BB ( 01491-838800 Fax 01491-692345 Sophia House, 28 Cathedral Road, Cardiff CF11 9LJ ( 029-2066-0147 Fax 029-2066-0159

Parent Body Natural Environment Research Council, Polaris House, North Star Avenue, Swindon, Wiltshire SN2 1EU ( 01793-411500 Fax 01793-411501 www.nerc.ac.uk

Foreword

This report represents the latest version (version 3) of the official BGS cartographic symbols, ornaments and line styles.

Version 1.0 was produced in April 1997, following a development project to unify 1:10 000 scale and 1:50 000 scale map symbols (CS/R&D/7). Version 2.0 was produced in February 1999, following geological updates, and inclusion of line styles and area ornaments (RR-99-05). Version 3.0 was produced in September 2002, following geological updates. This version replaces all previous versions.

i

Contents

Foreword i Contents ii 1

Introduction 1 1.1 Standard geological symbols

2

Symbols 2 2.1 Index of symbols listed alphabetically within each geological classification 2 2.2 Index of symbols listed alphabetically by description 22

3

Area ornaments 41 Graphic ornaments listed alphabetically by description

4

Line styles 45 Graphic line styles listed alphabetically by description

ii

1 Introduction

This document was compiled from information created using MicroStationä from Bentley Systems and Fontographer® from Macromedia®. It was also designed to accompany three Microstation digital libraries and seven font libraries, which may be released at some future time. 1.1

STANDARD GEOLOGICAL SYMBOLS

The geological symbols are described in Section 2. The BGS standard length for an average* symbol is 3mm at 1:25 000 scale and all smaller scale maps, and 4mm for 1:10 000. (*The average symbol being the length of the main body of the symbol i.e. the length of the Alluvium symbol without a prefix or suffix). Each symbol has been given a reference name, which is primarily used within the Microstation digital library. The reference names are an abbreviated form of their description, many are grouped together in their geological classification with a common prefix as follows: ALV

Alluvial deposits

BRK

Brickearth

GFL

Glaciofluvial deposits

GLA

Glaciolacustrine deposits

GL

Glacial deposits

IGL

Interglacial deposits

LAC

Lacustrine deposits

MA

Marine deposits

RM

Raised marine deposits

RS

Rock symbols

RT

River terrace deposits

S

Structural symbols

SG

Sand and gravel.

1

2.1

SECTION 5 SYMBOLS CARTO.CEL INDEX LISTED BY GEOLOGICAL CLASSIFICATION

2

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION

DESCRIPTION

REF NAME

SYMBOL

DRIFT

FONT & KEYSTROKE NO. BGSArtificial Chemical

ARTIFICIAL DEPOSITS

MASSMOVEMENT

Small area of made ground, backfilled pit

ART_BP

A

65

Small area of made ground, above surface

ART_AS

C

67

Small area of worked ground

ART_WG

B

66

Small area of landslip

MSM_L

P

80

Blockfield

BLOC

E

69

Coombe deposits

COD

F

70

Clay-with-flints

CWF

G

71

Sand in clay-with-flints

CWF_S

D

68

Debris cone

DCON

H

72

Head or hillwash

HEAD

I

73

Head 1

HEAD1

M

77

Head 2

HEAD2

N

78

Blanket head / regolith

HEAD_R

K

75

Head, Burton Lazars

HEADBL

p

112

Head, Colluvium

HEAD_C

q

113

Gravelly head

HEAD_G

J

74

Head, Little Dalby

HEADLD

r

114

Head, Pen Hill

HEADPH

s

115

Sandy head

HEAD_S

L

76

Valley bottom head

HEAD_V

t

116

Pebbly clay and sand

PBS

Q

81

Scree / talus

SCRE

R

82

Inactive scree / talus

SCRE_I

T

84

3

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION

AEOLIAN DEPOSITS

ORGANIC DEPOSITS

CHEMICAL /ORGANIC DEPOSITS

DESCRIPTION

REF NAME

SYMBOL

FONT & KEYSTROKE NO. BGSArtificial Chemical

Blown sand

BLS

W

87

Blown sand, 1

BLS_1

X

88

Brickearth

BRK_

Y

89

Brickearth, Dartford Silt

BRK_DA

Z

90

Brickearth, Enfield Silt

BRK_ES

[

91

Brickearth, Ilford Silt

BRK_IL

\

92

Brickearth, Langley Silt

BRK_LS

]

93

Brickearth, Wolston Clay

BRK_WC

^

94

Loess

LOESS

_

95

Peat

PEAT

c

99

Basin peat

PEA_BA

l

108

Blanket peat

PEA_BL

m

109

Fen peat

PEA_FN

n

110

Hill peat

PEA_H

o

111

Nordelph peat

PEAT_N

e

101

Peat flow

PEAT_F

d

100

Submerged forest

PET_SF

f

102

Diatomite

DIAT

a

97

Diatomite, fluvial

DIAT_F

b

98

Shell marl

SLM

g

103

Bog iron ore

ORE

j

106

Calcareous tufa

TUFA_C

h

104

Tufa

TUFA

k

107

4

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION

FLUVIAL DEPOSITS

River Terraces

DESCRIPTION

REF NAME

SYMBOL

FONT & KEYSTROKE NO. BGSFluvial

Alluvial fan deposits

ALV_FN

G

71

Alluvial fan deposits, gravel

ALV_FG

F

70

Alluvium

ALV

A

65

Alluvium, 1

ALV_1

B

66

Alluvium, clay

ALV_C

C

67

Alluvium, sand and gravel

ALV_SG

H

72

Arun Terrace Deposits, 1st

RT_A1

K

75

Arun Terrace Deposits, 2nd

RT_A2

L

76

Arun Terrace Deposits, 3rd

RT_A3

M

77

Arun Terrace Deposits, 4th

RT_A4

N

78

Arun Terrace Deposits, 5th

RT_A5

O

79

Arun Terrace Deposits, 6th

RT_A6

P

80

Arun Terrace Deposits, 7th

RT_A7

Q

81

Balderton Sand and Gravel

RT_BDN

Y

89

Bank Farm Terrace

RT_B

U

85

Bassingfield Sand and Gravel

RT_BS

b

98

Beaconsfield Gravel

RT_BC9

X

88

Beenham Grange Gravel

RT_BG2

\

92

Beenham Stocks Gravel

RT_BS7

c

99

Beeston Sand and Gravel

RT_BEE

Z

90

Belton Sand and Gravel

RT_BEL

[

91

Birstall Sand and Gravel

RT_BIR

^

94

Black Park Gravel

RT_BPG

a

97

Blackwater Terrace Deposits, 3rd

RT_B3

V

86

Blackwater Terrace Deposits, 4th

RT_B4

W

87

Boyn Hill Gravel

RT_BH

]

93

5

2.1 SYMBOLS

CLASSIFICATION

River Terraces (continued)

INDEX LISTED BY CLASSIFICATION

DESCRIPTION

REF NAME

SYMBOL

FONT & KEYSTROKE NO. BGSFluvial

Bramley Wey Terrace Deposits, 2nd

RT_BW2

d

100

Bucklebury Gravel

RT_BK8

_

95

Brooksby Sand and Gravel

RT_BKY

à

0224

Bunny Sand and Gravel

RT_BN

á

0225

Bytham Sand and Gravel

RT_BTH

â

0226

Caesar's Camp Gravel

RT_CCG

Ø

0216

Cheltenham Sand and Gravel

ALV_CH

D

68

Combe Member

RT_CM

e

101

Corbets Tey Gravel

RT_CY

Ù

0217

Daylesford Member, 1st

RT_DM1

g

103

Dollis Hill Gravel

RT_DH

f

102

Dry valley deposits

ALV_DV

E

69

Eagle Moor Sand and Gravel

RT_EM

Þ

0222

Eggington Common Sand and Gravel

RT_EC

h

104

Etwall Sand and Gravel

RT_ET

j

106

Fen Sand and Gravel

RT_FG

k

107

Finsbury Gravel

RT_FIN

l

108

Fluvial Sand and Gravel

RT_FSG

n

110

Freeland Member

RT_FR

m

109

Fulbeck Sand and Gravel

RT_FUL

o

111

Gerrards Cross Gravel

RT_GC

r

114

Godalming Wey Deposits, 1st

RT_GW1

s

115

Godalming Wey Deposits, 1a

RT_G1A

p

112

Godalming Wey Deposits, 1b

RT_G1B

q

113

Godalming Wey Deposits, 2nd

RT_GW2

t

116

Godalming Wey Deposits, 3rd

RT_GW3

u

117

6

2.1 SYMBOLS

CLASSIFICATION

River Terraces (continued)

INDEX LISTED BY CLASSIFICATION

DESCRIPTION

REF NAME

SYMBOL

FONT & KEYSTROKE NO. BGSFluvial

Hackney Gravel

RT_HA

x

120

Hanborough Member

RT_H4

w

119

Holme Pierrepont Sand and Gravel

RT_HP

z

122

Kempton Park Gravel

RT_KP

{

123

Knighton Sand and Gravel

RT_KN

|

124

Leaves Green Gravel

RT_LG

}

125

Leen Sand and Gravel

RT_LN

¡

0161

Little Hereford River Terrace

RT_H

v

118

Lynch Hill Gravel

RT_LH

~

126

Northmoor Member

RT_N1

¢

0162

Ockbrook Sand and Gravel

RT_OcK

£

0163

Rissington Member

RT_RM1

¤

0164

River Avon Deposits, 1st

RT_AV1

S

83

River Avon Deposits, 2nd

RT_AV2

T

84

River Severn Deposits, 1st

RT_S1

¬

0172

River Severn Deposits, 2nd

RT_S2

²

0178

River Severn Deposits, 3rd

RT_S3

³

0179

River terrace deposits, 1st

RT01

Ä

0196

River terrace deposits,1a

RT01A

Å

0197

River terrace deposits,1b

RT01B

Æ

0198

River terrace deposits,1c

RT01C

Ç

0199

River terrace deposits, 1st - 2nd

RT01-2

È

0200

River terrace deposits, 2nd

RT02

É

0201

River terrace deposits, 2nd - 3rd

RT02-3

×

0215

River terrace deposits, 3rd

RT03

Ê

0202

River terrace deposits, 4th

RT04

Ë

0203

7

2.1 SYMBOLS

CLASSIFICATION

River Terraces (continued)

INDEX LISTED BY CLASSIFICATION

DESCRIPTION

REF NAME

SYMBOL

FONT & KEYSTROKE NO. BGSFluvial

River terrace deposits, 5th

RT05

Ì

0204

River terrace deposits, 5th - 6th

RT05-6

Û

0219

River terrace deposits, 6th

RT06

Í

0205

River terrace deposits, 7th

RT07

Î

0206

River terrace deposits, 8th

RT08

Ï

0207

River terrace deposits, 9th

RT09

Ð

0208

River terrace deposits 10th

RT10

Ñ

0209

River terrace deposits, 11th

RT11

Ò

0210

River terrace deposits, 12th

RT12

Ó

0211

River terrace deposits, 13th

RT13

Ô

0212

River terrace deposits, 14th

RT14

Õ

0213

River terrace deposits, 15th

RT15

Ö

0214

River terrace deposits, undifferentiated

RT_U

¸

0184

River Worfe Deposits, undifferentiated

RT_WF

Ú

0218

River Worfe Terrace Deposits, 1st

RT_WF1

¹

0185

River Worfe Terrace Deposits, 2nd

RT_WF2

º

0186

River Wye Terrace Deposits, 1st

RT_WY1

Â

0194

River Wye Terrace Deposits, 2nd

RT_WY2

Ã

0195

Rother Terrace Deposits, 1st

RT_RO1

¥

0165

Rother Terrace Deposits, 2nd

RT_RO2

¦

0166

Rother Terrace Deposits, 3rd

RT_RO3

§

0167

Rother Terrace Deposits, 4th

RT_RO4

¨

0168

Rother Terrace Deposits, 5th

RT_RO5

©

0169

Rother Terrace Deposits, undifferentiated

RT_ROU

ª

0170

Shakenhurst Terrace

RT_S

«

0171

Shepperton Gravel

RT_SH

¯

0175

8

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION

DESCRIPTION

REF NAME

SYMBOL

River Terraces (continued)

LACUSTRINE DEPOSITS

FONT & KEYSTROKE NO. BGSFluvial

Sherborne Member, 1st terrace

RT_SM1

±

0177

Sherborne Member, 2nd terrace

RT_SM2

´

0180

Silchester Gravel

RT_SL6

®

0174

Summertown Radley Member, 2nd terrace

RT_SR2

ß

0223

Surrey Hill Gravel

RT_SHG

°

0176

Syston Sand and Gravel

RT_SYS

µ

0181

Taplow Gravel

RT_TAP

¶

0182

Thatcham Gravel

RT_TH3

·

0183

Wanlip Sand and Gravel

RT_WAN

»

0187

Warp

ALV_W

I

73

Westland Green Gravel

RT_WG

½

0189

Westmill Lower Gravel

RT_WM

À

0192

Whatton Sand and Gravel

RT_WH

¾

0190

Winter Hill Gravel

RT_WH7

¿

0191

Wolvercote Member

RT_WO3

Á

0193

Woodford Gravel

RT_WD

¼

0188

BGSMarine Lacustrine deposits

LAC

}

125

Lacustrine deposits 1

LAC1

£

0163

Lacustrine deposits 2

LAC2

¤

0164

Lacustrine deposits 3

LAC3

¥

0165

Lacustrine delta deposits

LAC_D

~

126

Lacustrine shoreface and beach deposits

LAC_SB

¢

0162

Lacustrine shoreface and beach deposits 5

LAC_S5

¡

0161

9

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION

MARINE DEPOSITS

DESCRIPTION

REF NAME

SYMBOL

FONT & KEYSTROKE NO. BGSMarine

Bank deposits

MA_B

H

72

Bank deposits, sand

MA_BS

L

76

Barroway Drove Beds

MA_BDB

D

68

Chenier deposits

MA_CH

`

96

Netley Heath Deposits

MA_NET

§

0167

Coastal barrier deposits

MA_CB

E

69

Coastal barrier, sand and gravel

MA_SGC

R

82

Coastal zone deposits, undifferentiated

MA_CZ

a

97

Intertidal deposits, undifferentiated

MA_I

b

98

Marine band

MA_MB

I

73

Marine beach deposits

MA_BE

C

67

Marine deposits, undifferentiated

MA_MA

G

71

Marine deposits, sand and gravel

MA_SG

Q

81

Mud deposits

MA_M

F

70

Saltmarsh deposits

MA_SM

W

87

Sand and silt deposits

MA_SSI

X

88

Sand deposits

MA_S

K

75

Sand, tabular or sheet deposits

MA_SST

Y

89

Shell bank (mussel band)

MA_SHB

U

85

Shoreface deposits

MA_SF

d

100

Shoreface deposits, sand

MA_SFS

P

80

Shoreface deposits, sand and gravel

MA_SSG

S

83

Silt deposits

MA_SI

V

86

Storm beach deposits

MA_SB

c

99

Storm beach deposits, 1

MA_SB1

M

77

Storm beach deposits, gravel

MA_SBG

O

79

10

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION MARINE DEPOSITS (continued)

RAISED MARINE DEPOSITS

DESCRIPTION

REF NAME

SYMBOL

FONT & KEYSTROKE NO. BGSMarine

Supratidal deposits undifferentiated

MA_SU

T

84

Tabular or sheet deposits

MA_ST

Z

90

Tidal flat deposits

MA_TF

^

94

Tidal flat deposits, 1

MA_TF1

[

91

Tidal, river or creek deposits

MA_TR

\

92

Tidal, river or creek deposits, mud

MA_TRM

]

93

Tidal, river or creek deposits, mud and gravel

MA_TMG

J

74

Washover deposits

MA_WO

_

95

Beach deposits

RM_SB2

r

114

Brackish lagoon

RM_BL

¨

0168

Delta deposits, sand and gravel

RM_DS

k

107

Flandrian deposits

RM_FL

l

108

Intertidal

RM_IN

m

109

Late glacial

RM_LG

|

124

Post glacial

RM_PG

q

113

Raised marine delta deposits

RM_D

j

106

Raised marine deposits

RM

e

101

Raised marine deposits, clay

RM_C

{

123

Raised marine deposits, high

RM_2

g

103

Raised marine deposits, highest

RM_3

h

104

Raised marine deposits, low

RM_1

f

102

Raised marine deposits, March Gravels

RM_MG

o

111

Raised marine deposits, mud

RM_M

n

110

Raised marine deposits, Nor Valley Clay

RM_NV

p

112

Raised marine deposits, sand and gravel

RM_SG

u

117

Raised marine deposits, silt and clay

RM_SC

t

116

11

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION RAISED MARINE DEPOSITS (continued)

DESCRIPTION

REF NAME

SYMBOL

FONT & KEYSTROKE NO. BGSMarine

Raised marine deposits, Terrington Beds

RM_TB

w

119

Raised marine deposits, Tottenhill Gravels

RM_TO

y

121

Raised marine, tidal, river or creek deposits

RM_TF

x

120

Raised tidal flat deposits of Flandrian age

RM_TRF

z

122

Shore beach deposits of Flandrian age

RM_SBF

s

115

Subtidal

RM_SU

v

118

BGSGlacial INTERGLACIAL

GLACIAL DEPOSITS

Glaciofluvial deposits

Interglacial lacustrine deposits

IGL_LA

D

68

Interglacial deposits, undifferentiated

IGL

A

65

Interglacial fluvial deposits

IGL_FL

C

67

Interglacial marine deposits, undifferentiated

IGL_MA

E

69

Interglacial marine shore beach deposits

IGL_MS

F

70

Diamicton

DM

¦

0166

Glacial deposits

GL

[

91

Crag with tail

GL_CG

\

92

Hummocky glacial and Morainic deposits

GL_HMC

]

93

Muddy sand and gravel

GL_MSG

^

94

Glaciofluvial deposits, undifferentiated

GFL

K

75

Baginton Sand and Gravel

GFL_B

M

77

Burtle Beds,

GFL_BU

~

0126

Corton Formation

GFL_CO

¡

0161

Deltaic and / or fan deposits

GFL_D

N

78

Lochton Sand and Gravel Formation (East Grampian Drift Group)

GFL_EG

§

0167

Eagle Moor Sand and Gravel

GFL_EM

O

79

Holderness Formation

GFL_HO

¢

0162

Ice-contact

GFL_IC

P

80

12

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION

GLACIAL DEPOSITS Glaciofluvial Deposits (continued)

Glaciolacustrine

DESCRIPTION

REF NAME

SYMBOL

FONT & KEYSTROKE NO. BGSGlacial

Irish Sea Ice Sheet (sheet deposits)

GFL_IT

Irish Sea Ice Sheet, undifferentiated

´

0180

GFL_I

µ

0181

Lowestoft Formation

GFL_L

£

0163

Drumlithie Sand and Gravel (Mearns Drift Group)

GFL_MD

¨

0168

Moreton Member

GFL_MT

Q

81

Overstrand Formation

GFL_O

¤

0164

Oadby Member

GFL_OD

R

82

Pre-Devensian

GFL_PD

S

83

Sheet deposits, 1st

GFL_S1

T

84

Sheet deposits, 2nd

GFL_S2

U

85

Sheet deposits, 3rd

GFL_S3

V

86

Sand and gravel

GFL_SG

W

87

Sheet deposits

GFL_SH

X

88

Wigston Sand and Gravel

GFL_WI

©

0169

Woolford Heath Member

GFL_WL

Y

89

Wolston Sand and Gravel

GFL_WO

Z

90

Glaciolacustrine deposits

GLA

a

97

Glaciolacustrine deposits 1

GLA1

k

107

Glaciolacustrine deposits 2

GLA2

l

108

Clay

GLA_C

b

97

Delta deposits, sand and gravel

GLA_DG

c

99

Delta deposits

GLA_DL

d

100

Delta deposits, sand

GLA_DS

e

101

Glen Dye Silts Formation (East Grampian Drift Group)

GLA_EG

ª

0170

Findern Clay

GLA_FC

f

102

Silt and clay

GLA_M

g

103

13

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION

DESCRIPTION

REF NAME

SYMBOL

Glaciomarine

Till

FONT & KEYSTROKE NO. BGSGlacial

Ury Silts Formation (Mearns Drift Group)

GLA_MD

«

0171

Silt and clay, 1st

GLA_M1

h

104

Rotherby clay

GLA_RO

¬

0172

Sand

GLA_S

_

95

Sand and gravel

GLA_SG

j

106

Glaciomarine deposits

GLM

m

109

Ardersier Silts Formation,

GLM_A

®

0174

Till or boulder clay

TIL

n

110

Benholm Clay Formation

TIL_BB

¯

175

Wragby, Calcethorpe & Belmont

TIL_C

q

113

Corton Formation

TIL_CO

u

117

Banchory Till Formation (east Grampian Drift Group)

TIL_EG

°

0176

Holderness Formation

TIL_HO

v

118

Irish Sea Ice Sheet

TIL_I

³

0179

Lowestoft Formation

TIL_L

w

119

Marsh Till

TIL_M

r

114

Mill of Forest Formation (Mearns Drift Group)

TIL_MD

±

0177

Moreton Member

TIL_MT

s

115

Overstrand Formation

TIL_O

|

124

Oadby Till

TIL_OD

x

120

Oadby Till (Lias-rich)

TIL_OL

y

121

Oadby Till (Trias-rich)

TIL_OT

²

0178

Ruddington Moor Till

TIL_RM

}

125

Thrussington Till

TIL_TH

{

123

14

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION

MISCELLANEOUS DRIFT

DESCRIPTION

REF NAME

SYMBOL

FONT & KEYSTROKE NO. BGSMisc

Anker Sand and Gravel

SG_A

a

97

Chelsfield Gravel

SG_CH

b

98

Dunsmore Gravel

SG_DG

c

99

Erratic

ERRAT

`

96

Hathern Gravel

SG_HAT

d

100

Sand and gravel, age uncertain

SG_U

f

102

Stanmore Gravel

SG_ST

e

101

Upton Sand and Gravel

SG_UP

g

103

Well Hill Gravel

SG_WH

h

104

BGSLandform LANDFORM Fall of glacial drainage channel

GDC_FA

B

66

Glacial drainage channel, front

GDC_F

A

65

Glacial striae

GLST

F

70

Glacial striae direction of ice flow

GLSTI

G

71

Kettle hollow

KH

H

72

Roche moutonnée

GL_RM

D

68

Roche moutonnée with striae

GL_RMS

E

69

Rockhead or bedrock

ROCK

I

73

Single sided glacial drainage channel

GDC_S

C

67

Acid tuff

RS_ATF

L

76

Acid tuffite

RS_ATT

M

77

Aplite

RS_APL

K

75

Basic tuff

RS_BTF

\

92

Basic tuffite

RS_BTT

]

93

ROCK SYMBOLS

15

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION

ROCK SYMBOLS (continued)

STRUCTURAL SYMBOLS Bedding

DESCRIPTION

REF NAME

SYMBOL

FONT & KEYSTROKE NO. BGSLandform

Cataclastic (Metamorphic)

RS_BEM

N

78

Cataclastic rocks

RS_BET

O

79

Foliated

RS_FOL

R

82

Grandiorite X

RS_GRX

S

83

Microdiorite

RS_P

W

87

Microgranite

RS_FG

P

80

Mylonitic (metamorphic)

RS_MU1

V

86

Mylonitic rocks

RS_MU

U

85

Pegmatite

RS_PEG

X

88

Pseudotachylitic

RS_KAP

T

84

Rhyolite

RS_R

Y

89

Sheared rock (igneous and metamorphic)

RS_SH

Z

90

BGSStructural Corrugated strata, low dip

S_ISCL

?

63

Corrugated foliation

S_ISCF

c

99

Cross-bedding of foresets

S_CBF

A

65

Direction of younging

S_DY

C

67

Dune-bedding

S_DB

B

66

General dip

S_GDIP

D

68

General dip, underground

S_GDUP

E

69

Gently inclined strata

S_GIS

F

70

Gently undulating strata

S_GUS

G

71

Highly inclined strata

S_ISH

L

76

Horizontal overturned strata

S_HOS

H

72

Horizontal strata

S_HS

I

73

Inclined strata 1

S_IS1

J

74

16

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION

DESCRIPTION

REF NAME

SYMBOL

STRUCTURAL SYMBOLS Bedding (continued)

Foliation or layering

Cleavage / schistosity

FONT & KEYSTROKE NO. BGSStructural

Inclined strata 2

S_IS2

K

75

Inclined strata, overturned

S_ISO

M

77

Inclined strata, uncertain

S_ISU

O

79

Inclined strata, underground

S_ISUD

R

82

Strike of strata

S_STS

W

87

Undulating bed, inclined

S_UIS

T

84

Undulating vertical strata

S_UVS

U

85

Vertical strata

S_VS

V

86

Horizontal foliation

S_HF

k

107

Inclined foliation

S_IF

o

111

Strike of foliation

S_STF

l

108

Undulating foliation

S_UF

m

109

Vertical foliation

S_VF

n

110

Vertical foliation, general corrugated strike

S_VFC

j

106

Direction of cleavage

S_DC

Y

89

Horizontal cleavage

S_HC

Z

90

Inclined cleavage

S_IC

[

91

Inclined cleavage, sandstone

S_ICS

\

92

Sheared rock

S_SR

b

98

Strike of cleavage

S_STC

^

94

Undulating cleavage, inclined

S_UCI

_

95

Vertical cleavage

S_VC

`

96

Vertical cleavage in sandstone

S_VCS

a

97

Horizontal joint

S_HJ

Ì

0204

Inclined joint

S_IJ

Í

0205

Vertical joint

S_VJ

Î

0206

17

2.1 SYMBOLS

CLASSIFICATION

INDEX LISTED BY CLASSIFICATION

DESCRIPTION

REF NAME

SYMBOL

Linear structures

Igneous rocks

BGSStructural Horizontal lineation

S_HLI

¨

0168

Plunging lineation

S_PLI

©

0169

Vertical lineation

S_VLI

ª

0170

Horizontal flow jointing

S_HFJ

w

119

Horizontal primary crystal alignment

S_HPCA

s

115

S_HPPF

t

116

S_HR

u

117

Horizontal welding foliation

S_HWF

v

118

Inclined flow jointing

S_IFJ

w

119

Inclined primary crystal alignment

S_IPCA

x

120

Inclined primary planar fabric

S_IPP

y

121

Inclined primary planar fabric, overturned

S_IPPO

z

122

Inclined relict, planar fabric in plutonic rocks

S_IR

{

123

Inclined welding foliation

S_IWF

|

124

Strike of primary planar fabric

S_STPP

}

125

Strike of welding foliation

S_STWF

~

126

Vertical flow jointing

S_VFJ

¦

0166

Vertical primary crystal alignment

S_VPCA

¢

0162

Vertical primary planar fabric

S_VPP

£

0163

Vertical relict, planar fabric in plutonic rocks

S_VR

¤

0164

Vertical welding foliation

S_VWF

¥

0165

Anticline axial plane

S_ACAP

®

0174

Synclinal axial plane

S_SCAP

¯

0175

Synform axial plane

S_SFAP

°

0176

Horizontal primary planar fabric in igneous rocks Horizontal relict, planar fabric in plutonic rocks

Major folds

FONT & KEYSTROKE NO.

18

2.1 SYMBOLS

CLASSIFICATION

INDEX LISTED BY CLASSIFICATION

DESCRIPTION

REF NAME

SYMBOL

STRUCTURAL SYMBOLS Minor folds

FONT & KEYSTROKE NO. BGSStructural

Axis of minor anticline

S_AMA

´

0180

Axis of minor fold

S_AMF

µ

0181

Axis of minor syncline

S_AMS

¶

0182

Horizontal axial plane of minor fold

S_HAPM

½

0189

Horizontal axis of minor anticline

S_HAMA

¹

0185

Horizontal axis of minor fold

S_HAMF

º

0186

Horizontal axis of minor fold, phase 1

S_HAM1

¸

0184

Horizontal axis of minor monocline

S_HAMM

»

0187

Horizontal axis of minor syncline

S_HAMS

¼

0188

Inclined axial plane of minor fold

S_IAPM

¾

0189

Locality with refolded minor folds

S_LOC

¿

0190

Minor fold, low angle of plunge

S_MFLA

³

0179

Overturned anticline

S_ANO

·

0183

Overturned syncline

S_SYNO

Â

0194

Plunge axis of minor fold

S_PMF

À

0192

Strike axial plane minor fold

S_STAM

Ä

0196

Vertical axial plane of minor fold

S_VAPM

Ã

0195

Vertical axis of minor fold

S_VAMF

Å

0197

Æ

0198

Vergence Axis of minor fold showing direction of vergen S_AMFV Dextral vergence of minor fold

S_DXVM

È

0200

Direction of vergence of minor fold

S_DVMF

Ç

0199

Neutral vergence of minor fold

S_NVMF

É

0201

Sinistral vergence of minor fold

S_SVMF

Ê

0202

19

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION

DESCRIPTION

REF NAME

SYMBOL

Faults and related structures

FONT & KEYSTROKE NO. BGSStructural

Fault movement

FLT_MV

d

100

Fault terminator

FLT_TR

f

102

Mineral vein dip

S_MVFD

g

103

Strike slip fault

FLT_S

e

101

Thrust barb

TBARB

h

104

OTHER SYMBOLS

BGSMisc Adit

ADIT

A

65

Adit, abandoned

ADIT_A

B

66

Adit, unknown orientation

ADIT_U

C

67

Borehole

BH

D

68

Borehole, uncertain

BH_UN

F

70

Borehole, underground

BH_UD

E

69

Dip of igneous contact

S_DIP

T

84

Fossil locality

FOSSL

J

74

Inclination of dyke

S_IDY

k

107

Location, with specific note

SPNT

W

87

Mineral locality

MLOC

L

76

Photo in BGS collection

PHOTO

N

78

Pit or mine shaft

PIT

O

79

Pit or mine shaft, abandoned, or denehole

PIT_A

P

80

Pit or mine shaft, abandoned, site uncertain

PIT_U

Q

81

Pit shaft, underground

PIT_UD

R

82

Rock slice, petrographic

SLICE

V

86

Site of former mine

SFM

U

85

Small isolated exposure

EXP

I

73

Spring or group of springs

SPRING

j

106

20

2.1 SYMBOLS

INDEX LISTED BY CLASSIFICATION

CLASSIFICATION

DESCRIPTION

REF NAME

SYMBOL

OTHER SYMBOLS (continued)

FONT & KEYSTROKE NO. BGSMisc

Surface section

SURF_S

X

88

Swallow hole

SWH

Y

89

Trench

TRE

[

91

Underground spot level

UDSPOT

\

92

Well

BH_WL

G

71

21

2.1

2.2

SYMBOLS INDEX LISTED BY DESCRIPTION

22

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z A

Acid tuff

RS_ATF

L

Acid tuffite

RS_ATT

M

Adit

ADIT

A

Adit, abandoned

ADIT_A

B

Adit, unknown orientation

ADIT_U

C

Alluvial fan deposits

ALV_FN

G

Alluvial fan deposits, gravel

ALV_FG

F

Alluvium

ALV

A

Alluvium, 1

ALV_1

B

Alluvium, clay

ALV_C

C

Alluvium, sand and gravel

ALV_SG

H

Anker Sand and Gravel

SG_A

Anticline axial plane

S_ACAP

®

Anticline, overturned

S_ANO

·

Aplite

RS_APL

K

Ardersier Silts Formation, glaciomarine deposits

GLM_A

®

Arun Terrace Deposits, 1st

RT_A1

K

Arun Terrace Deposits, 2nd

RT_A2

L

Arun Terrace Deposits, 3rd

RT_A3

M

Arun Terrace Deposits, 4th

RT_A4

N

Arun Terrace Deposits, 5th

RT_A5

O

Arun Terrace Deposits, 6th

RT_A6

P

Arun Terrace Deposits, 7th

RT_A7

Q

Axis of minor anticline

S_AMA

´

Axis of minor fold

S_AMF

µ

Axis of minor fold showing direction of vergence

S_AMFV

Æ

Axis of minor syncline

S_AMS

¶

23

a

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z B

Baginton Sand and Gravel, glaciofluvial deposits

GFL_B

M

Balderton Sand and Gravel

RT_BDN

Y

Banchory Till Formation (east Grampian Drift Group), till

TIL_EG

°

Bank deposits

MA_B

H

Bank deposits, sand

MA_BS

L

Bank Farm Terrace

RT_B

U

Barroway Drove Beds, marine deposit

MA_BDB

D

Basic tuff

RS_BTF

\

Basic tuffite

RS_BTT

]

Basin peat

PEA_BA

l

Bassingfield Sand and Gravel

RT_BS

b

Beach deposits, raised marine deposits

RM_SB2

r

Beaconsfield Gravel

RT_BC9

X

Beenham Grange Gravel

RT_BG2

\

Beenham Stocks Gravel

RT_BS7

c

Beeston Sand and Gravel

RT_BEE

Z

Belton Sand and Gravel

RT_BEL

[

Benholm Clay Formation, till

TIL_BB

¯

Birstall Sand and Gravel

RT_BIR

^

Black Park Gravel

RT_BPG

a

Blackwater Terrace Deposits, 3rd

RT_B3

V

Blackwater Terrace Deposits, 4th

RT_B4

W

Blanket head / regolith

HEAD_R

K

Blanket peat

PEA_BL

m

Blockfield

BLOC

E

Blown sand

BLS

W

Blown sand, 1

BLS_1

X

24

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z B

Bog iron ore

ORE

j

Borehole

BH

D

Borehole, uncertain

BH_UN

F

Borehole, underground

BH_UD

E

Boyn Hill Gravel

RT_BH

]

Brackish lagoon

RM_BL

¨

Bramley Wey Terrace Deposits, 2nd

RT_BW2

d

Brickearth

BRK_

Y

Brooksby Sand and Gravel

RT_BKY

à

Bucklebury Gravel

RT_BK8

_

Bunny Sand and Gravel

RT_BN

á

Burtle Beds, glaciofluvial deposits

GFL_BU

~

Bytham Sand and Gravel

RT_BTH

â

Caesar's Camp Gravel

RT_CCG

Ø

Calcareous tufa

TUFA_C

h

Cataclastic (metamorphic)

RS_BEM

N

Cataclastic rocks

RS_BET

O

Chelsfield Gravel

SG_CH

b

Cheltenham Sand and Gravel

ALV_CH

D

Chenier deposits

MA_CH

`

Clay, glaciolacustrine deposits

GLA_C

b

Clay-with-flints

CWF

Coastal barrier deposits

MA_CB

Coastal barrier, sand and gravel

MA_SGC

Coastal zone deposits, undifferentiated

MA_CZ

a

Combe Member (river terrace)

RT_CM

e

Coombe Deposits

COD

25

G E R

F

C

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z C

Corbets Tey Gravel

RT_CY

Ù

Corrugated foliation

S_ISCF

c

Corrugated strata, low dip

S_ISCL

?

Corrugated strike (general) vertical foliation

S_VFC

j

Corton Formation, glaciofluvial deposits

GFL_CO

¡

Corton Formation, till

TIL_CO

u

Crag with tail

GL_CG

\

Cross-bedding of foresets

S_CBF

A

Dartford Silt (brickearth)

BRK_DA

Z

Daylesford Member, 1st river terrace

RT_DM1

g

Debris cone

DCON

H

Delta deposits

GLA_DL

d

Delta deposits, sand

GLA_DS

e

Delta deposits, sand and gravel, raised marine

RM_DS

k

Delta deposits, sand and gravel, glacial

GLA_DG

c

Deltaic and / or fan deposits

GFL_D

Dextral vergence of minor fold

S_DXVM

Diamicton

DM

Diatomite

DIAT

a

Diatomite, fluvial

DIAT_F

b

Dip of igneous contact

S_DIP

T

Dip, general

S_GDIP

D

Dip, general, underground

S_GDUP

E

Dip, mineral vein

S_MVFD

g

Direction of cleavage

S_DC

Direction of vergence of minor fold

S_DVMF

Direction of younging

S_DY

26

N È ¦

Y Ç C

D

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z D

Dollis Hill Gravel

RT_DH

f

Drumlithie Sand and Gravel (Mearns Drift Group), glaciofluvial deposits

GFL_MD

¨

Dry valley deposits

ALV_DV

E

Dune-bedding

S_DB

Dunsmore Gravel

SG_DG

c

Eagle Moor Sand and Gravel

RT_EM

Þ

Eagle Moor Sand and Gravel, glaciofluvial deposits

GFL_EM

O

Eggington Common Sand and Gravel

RT_EC

h

Enfield Silt (brickearth)

BRK_ES

[

Erratic

ERRAT

`

Etwall Sand and Gravel

RT_ET

j

Fall of glacial drainage channel

GDC_FA

Fan deposits and / or deltaic

GFL_D

N

Fault movement

FLT_MV

d

Fault terminator

FLT_TR

f

Fault, strike slip

FLT_S

e

Fen peat

PEA_FN

n

Fen sand and gravel

RT_FG

k

Findern Clay

GLA_FC

f

Finsbury Gravel

RT_FIN

l

Flandrian deposits

RM_FL

l

Fluvial sand and gravel

RT_FSG

n

Foliated

RS_FOL

R

Fossil locality

FOSSL

J

Freeland Member river terrace

RT_FR

m

Fulbeck Sand and Gravel

RT_FUL

o

27

B

B

E

F

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z G

General dip

S_GDIP

D

General dip, underground

S_GDUP

E

Gently inclined strata

S_GIS

F

Gently undulating strata

S_GUS

G

Gerrards Cross Gravel

RT_GC

r

Glacial deposits

GL

[

Glacial drainage channel, front

GDC_F

A

Glacial striae

GLST

F

Glacial striae direction of ice flow

GLSTI

G

Glaciofluvial deposits, undifferentiated

GFL

K

Glaciolacustrine deposits

GLA

a

Glaciolacustrine deposits 1

GLA1

k

Glaciolacustrine deposits 2

GLA2

l

Glaciomarine deposits

GLM

m

Glen Dye Silts Formation (East Grampian Drift Group), glaciolacustrine deposits

GLA_EG

ª

Godalming Wey Deposits, 1a river terrace deposit

RT_G1A

p

Godalming Wey Deposits, 1b river terrace deposit

RT_G1B

q

Godalming Wey Deposits, 1st river terrace deposit

RT_GW1

s

Godalming Wey Deposits, 2nd river terrace deposit

RT_GW2

t

Godalming Wey Deposits, 3rd river terrace deposit

RT_GW3

u

Grandiorite X

RS_GRX

S

Gravelly head

HEAD_G

J

Hackney Gravel

RT_HA

x

Hanborough Member river terrace

RT_H4

w

Hathern Gravel

SG_HAT

d

Head 1

HEAD1

M

Head 2

HEAD2

N

28

H

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z H

Head or hillwash

HEAD

I

Head, Burton Lazars

HEADBL

p

Head, Colluvium

HEAD_C

q

Head, Little Dalby

HEADLD

r

Head, Pen Hill

HEADPH

s

High raised marine deposits

RM_2

g

Highest raised marine deposits

RM_3

h

Highly inclined strata

S_ISH

L

Hill peat

PEA_H

o

Holderness Formation, glaciofluvial deposits

GFL_HO

¢

Holderness Formation, till

TIL_HO

v

Holme Pierrepont Sand and Gravel

RT_HP

z

Horizontal axial plane of minor fold

S_HAPM

½

Horizontal axis of minor anticline

S_HAMA

¹

Horizontal axis of minor fold

S_HAMF

º

Horizontal axis of minor fold, phase 1

S_HAM1

¸

Horizontal axis of minor monocline

S_HAMM

»

Horizontal axis of minor syncline

S_HAMS

¼

Horizontal cleavage

S_HC

Z

Horizontal flow jointing

S_HFJ

w

Horizontal foliation

S_HF

k

Horizontal joint

S_HJ

Ì

Horizontal lineation

S_HLI

¨

Horizontal overturned strata

S_HOS

H

Horizontal primary crystal alignment

S_HPCA

s

Horizontal primary planar fabric in igneous rocks

S_HPPF

t

Horizontal relict, planar fabric in plutonic rocks

S_HR

u

29

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z H

Horizontal strata

S_HS

I

Horizontal welding foliation

S_HWF

v

Hummocky glacial and morainic deposits

GL_HMC

]

Ice-contact, glaciofluvial deposits

GFL_IC

P

Ilford Silt (brickearth)

BRK_IL

\

Inactive scree / talus

SCRE_I

T

Inclination of dyke

S_IDY

k

Inclined strata (highly)

S_ISH

L

Inclined axial plane of minor fold

S_IAPM

¾

Inclined cleavage

S_IC

[

Inclined cleavage, sandstone

S_ICS

\

Inclined flow jointing

S_IFJ

w

Inclined foliation

S_IF

o

Inclined joint

S_IJ

Í

Inclined primary crystal alignment

S_IPCA

Inclined primary planar fabric

S_IPP

y

Inclined primary planar fabric, overturned

S_IPPO

z

Inclined relict, planar fabric in plutonic rocks

S_IR

{

Inclined strata (gently)

S_GIS

F

Inclined strata 1

S_IS1

J

Inclined strata 2

S_IS2

K

Inclined strata, overturned

S_ISO

M

Inclined strata, uncertain

S_ISU

O

Inclined strata, underground

S_ISUD

R

Inclined welding foliation

S_IWF

|

Interglacial lacustrine deposits

IGL_LA

D

Interglacial deposits, undifferentiated

IGL

A

30

x

I

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z I

Interglacial fluvial deposits

IGL_FL

C

Interglacial marine deposits, undifferentiated

IGL_MA

E

Interglacial marine shore beach deposits

IGL_MS

F

Intertidal

RM_IN

m

Intertidal deposits, undifferentiated

MA_I

Irish Sea Ice Sheet, (sheet deposits) glaciofluvial deposits

GFL_IT

Irish Sea Ice sheet, till

TIL_I

³

Irish Sea Ice Sheet, undifferentiated, glaciofluvial deposits

GFL_I

µ

Kempton Park Gravel

RT_KP

{

Kettle hollow

KH

H

Knighton Sand and Gravel

RT_KN

|

Lacustrine delta deposits

LAC_D

~

Lacustrine deposits

LAC

}

Lacustrine deposits 1

LAC1

£

Lacustrine deposits 2

LAC2

¤

Lacustrine deposits 3

LAC3

¥

Lacustrine shoreface and beach deposits

LAC_SB

¢

Lacustrine shoreface and beach deposits 5

LAC_S5

¡

Landslip, small area

MSM_L

P

Langley Silt (brickearth)

BRK_LS

]

Late Glacial, raised marine deposits

RM_LG

|

Leaves Green Gravel

RT_LG

}

Leen Sand and Gravel

RT_LN

¡

Little Hereford river terrace

RT_H

v

Locality with refolded minor folds

S_LOC

¿

Location with specific note

SPNT

W

Lochton Sand and Gravel Formation (East Grampian Drift Group)

GFL_EG

§

31

b ´

K

L

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z L

Loess

LOESS

_

Low raised marine deposits

RM_1

f

Lowestoft Formation, glaciofluvial deposits

GFL_L

£

Lowestoft Formation, till

TIL_L

w

Lynch Hill Gravel

RT_LH

~

Made ground, above surface, small area

ART_AS

C

Made ground, backfilled pit, small area

ART_BP

A

March gravels, raised marine deposits

RM_MG

o

Marine band

MA_MB

I

Marine beach deposits

MA_BE

C

Marine deposits, sand and gravel

MA_SG

Q

Marine deposits, undifferentiated

MA_MA

G

Marsh till

TIL_M

r

Microdiorite

RS_P

W

Microgranite

RS_FG

P

Mill of Forest Formation (Mearns Drift Group), till

TIL_MD

±

Mineral locality

MLOC

Mineral vein dip

S_MVFD

g

Minor fold, low angle of plunge

S_MFLA

³

Moreton Member, glaciofluvial deposits

GFL_MT

Q

Moreton Member, till

TIL_MT

s

Mud deposits

MA_M

F

Muddy sand and gravel, glacial deposits

GL_MSG

^

Mylonitic (metamorphic)

RS_MU1

V

Mylonitic rocks

RS_MU

U

32

L

M

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z N

Netley Heath marine deposits

MA_NET

§

Neutral vergence of minor fold

S_NVMF

É

Nor Valley Clay, raised marine deposits

RM_NV

p

Nordelph Peat

PEAT_N

e

Northmoor Member river terrace

RT_N1

¢

Oadby Member, glaciofluvial deposits

GFL_OD

R

Oadby Till

TIL_OD

x

Oadby Till (Lias-rich)

TIL_OL

y

Oadby Till (Trias-rich)

TIL_OT

²

Ockbrook Sand and Gravel

RT_Ock

£

Overstrand Formation, glaciofluvial deposits

GFL_O

¤

Overstrand Formation, till

TIL_O

|

Overturned (horizontal) strata

S_HOS

H

Overturned anticline

S_ANO

·

Overturned inclined strata

S_ISO

M

Overturned syncline

S_SYNO

Â

Peat

PEAT

c

Peat flow

PEAT_F

Pebbly clay and sand

PBS

Q

Pegmatite

RS_PEG

X

Photo in BGS collection

PHOTO

N

Pit or mine shaft

PIT

O

Pit or mine shaft, abandoned, or denehole

PIT_A

P

Pit or mine shaft, abandoned, site uncertain

PIT_U

Q

Pit shaft, underground

PIT_UD

R

Plunge axis of minor fold

S_PMF

À

Plunging lineation

S_PLI

©

33

d

O

P

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z P

Postglacial, raised marine deposits

RM_PG

q

Pre-Devensian

GFL_PD

S

Pseudotachylitic

RS_KAP

T

Raised marine delta deposits

RM_D

Raised marine deposits

RM

e

Raised marine deposits, clay

RM_C

{

Raised marine deposits, high

RM_2

g

Raised marine deposits, highest

RM_3

h

Raised marine deposits, low

RM_1

f

Raised marine deposits, mud

RM_M

n

Raised tidal flat deposits of Flandrian age

RM_TRF

z

Rhyolite

RS_R

Y

Rissington Member river terrace

RT_RM1

¤

River Avon Deposits, 1st river terrace

RT_AV1

S

River Avon Deposits, 2nd river terrace

RT_AV2

T

River Severn Deposits, 1st river terrace

RT_S1

¬

River Severn Deposits, 2nd river terrace

RT_S2

²

River Severn Deposits, 3rd river terrace

RT_S3

³

River terrace deposits, 1st

RT01

Ä

River terrace deposits,1a

RT01A

Å

River terrace deposits,1b

RT01B

Æ

River terrace deposits,1c

RT01C

Ç

River terrace deposits, 2nd

RT02

É

River terrace deposits, 1st - 2nd

RT01-2

È

River terrace deposits, 2nd - 3rd

RT02-3

×

River terrace deposits, 3rd

RT03

Ê

River terrace deposits, 4th

RT04

Ë

34

j

R

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z R

River terrace deposits, 5th

RT05

Ì

River terrace deposits, 5th - 6th

RT05-6

Û

River terrace deposits, 6th

RT06

Í

River terrace deposits, 7th

RT07

Î

River terrace deposits, 8th

RT08

Ï

River terrace deposits, 9th

RT09

Ð

River terrace deposits, 10th

RT10

Ñ

River terrace deposits, 11th

RT11

Ò

River terrace deposits, 12th

RT12

Ó

River terrace deposits, 13th

RT13

Ô

River terrace deposits, 14th

RT14

Õ

River terrace deposits, 15th

RT15

Ö

River terrace deposits, undifferentiated

RT_U

¸

River Worfe Deposits, undifferentiated

RT_WF

Ú

River Worfe Terrace Deposits, 1st

RT_WF1

¹

River Worfe Terrace Deposits, 2nd

RT_WF2

º

River Wye Terrace Deposits, 1st

RT_WY1

Â

River Wye Terrace Deposits, 2nd

RT_WY2

Ã

Roche moutonnée

GL_RM

D

Roche moutonnée with striae

GL_RMS

E

Rock slice, petrographic

SLICE

V

Rockhead or bedrock

ROCK

I

Rother Terrace Deposits, 1st

RT_RO1

¥

Rother Terrace Deposits, 2nd

RT_RO2

¦

Rother Terrace Deposits, 3rd

RT_RO3

§

Rother Terrace Deposits, 4th

RT_RO4

¨

Rother Terrace Deposits, 5th

RT_RO5

©

35

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

Rother Terrace Deposits, undifferentiated

RT_ROU

ª

Rotherby Clay, glaciolacustrine deposits

GLA_RO

¬

Ruddington Moor Till

TIL_RM

}

Saltmarsh deposits

MA_SM

W

Sand and gravel, age uncertain

SG_U

Sand and gravel, glaciofluvial deposits

GFL_SG

W

Sand and gravel, glaciomarine deposits

GLA_SG

j

Sand and gravel, raised marine deposits

RM_SG

u

Sand and silt deposits

MA_SSI

X

Sand deposits

MA_S

K

Sand in clay-with-flints

CWF_S

D

Sand, glaciolacustrine deposits

GLA_S

_

Sand, tabular or sheet deposits

MA_SST

Y

Sandy head

HEAD_S

L

Scree / talus

SCRE

R

Shakenhurst Terrace

RT_S

«

Sheared rock

S_SR

b

Sheared rock (igneous and metamorphic)

RS_SH

Z

Sheet deposits, 1st, glaciofluvial deposits

GFL_S1

T

Sheet deposits, 2nd, glaciofluvial deposits

GFL_S2

U

Sheet deposits, 3rd, glaciofluvial deposits

GFL_S3

V

Sheet deposits, glaciofluvial deposits

GFL_SH

X

Shell bank (mussel band)

MA_SHB

U

Shell marl

SLM

g

Shepperton Gravel

RT_SH

°

Sherborne Member, 1st terrace

RT_SM1

±

Sherborne Member, 2nd terrace

RT_SM2

´

36

f

A-Z

S

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z S

Shore beach deposits of Flandrian age

RM_SBF

s

Shoreface deposits

MA_SF

d

Shoreface deposits, sand

MA_SFS

P

Shoreface deposits, sand and gravel

MA_SSG

S

Silchester Gravel

RT_SL6

®

Silt and clay, 1st, glaciolacustrine deposits

GLA_M1

h

Silt and clay, glaciolacustrine deposits

GLA_M

g

Silt and clay, raised marine deposits

RM_SC

t

Silt deposits

MA_SI

V

Single sided glacial drainage channel

GDC_S

C

Sinistral vergence of minor fold

S_SVMF

Ê

Site of former mine

SFM

U

Small isolated exposure

EXP

I

Spring or group of springs

SPRING

j

Stanmore Gravel

SG_ST

e

Storm beach deposits

MA_SB

c

Storm beach deposits, 1

MA_SB1

M

Storm beach deposits, gravel

MA_SBG

O

Strike axial plane minor fold

S_STAM

Ä

Strike of cleavage

S_STC

^

Strike of foliation

S_STF

l

Strike of primary planar fabric

S_STPP

}

Strike of strata

S_STS

W

Strike of welding foliation

S_STWF

~

Strike slip fault

FLT_S

e

Submerged forest

PET_SF

f

Subtidal, raised marine deposits

RM_SU

v

37

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z S

Summertown Radley Member, 2nd terrace

RT_SR2

ß

Supratidal deposits undifferentiated

MA_SU

T

Surface section

SURF_S

X

Surrey Hill Gravel

RT_SHG

°

Swallow hole

SWH

Y

Synclinal axial plane

S_SCAP

¯

Syncline, overturned

S_SYNO

Â

Synform axial plane

S_SFAP

°

Syston Sand and Gravel

RT_SYS

µ

Tabular or sheet deposits

MA_ST

Z

Talus / inactive scree

SCRE_I

T

Talus / scree

SCRE

R

Taplow Gravel

RT_TAP

¶

Terrington Beds, raised marine deposits

RM_TB

w

Thatcham Gravel

RT_TH3

·

Thrussington Till

TIL_TH

{

Thrust barb

TBARB

h

Tidal flat deposits

MA_TF

^

Tidal flat deposits, 1

MA_TF1

[

Tidal, river or creek deposits

MA_TR

\

Tidal, river or creek deposits, mud

MA_TRM

]

Tidal, river or creek deposits, mud and gravel

MA_TMG

J

Tidal, river or creek deposits, raised marine deposits

RM_TF

Till or boulder clay

TIL

n

Tottenhill Gravels, raised marine deposits

RM_TO

y

Trench

TRE

[

Tufa

TUFA

k

38

x

T

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z

\

U

Underground spot level

UDSPOT

Undulating bed, inclined

S_UIS

T

Undulating cleavage, inclined

S_UCI

_

Undulating foliation

S_UF

m

Undulating strata (gently)

S_GUS

G

Undulating vertical strata

S_UVS

U

Upton Sand and Gravel

SG_UP

g

Ury Silts Formation (Mearns Drift Group), glaciolacustrine deposits

GLA_MD

«

Valley bottom head

HEAD_V

t

Vertical axial plane of minor fold

S_VAPM

Ã

Vertical axis of minor fold

S_VAMF

Å

Vertical cleavage

S_VC

`

Vertical cleavage in sandstone

S_VCS

a

Vertical flow jointing

S_VFJ

¦

Vertical foliation

S_VF

n

Vertical foliation, general corrugated strike

S_VFC

j

Vertical joint

S_VJ

Î

Vertical lineation

S_VLI

ª

Vertical primary crystal alignment

S_VPCA

¢

Vertical primary planar fabric

S_VPP

£

Vertical relict, planar fabric in plutonic rocks

S_VR

¤

Vertical strata

S_VS

V

Vertical strata, undulating

S_UVS

U

Vertical welding foliation

S_VWF

¥

Wanlip Sand and Gravel

RT_WAN

»

Warp

ALV_W

I

Washover deposits

MA_WO

_

39

V

W

2.2 SYMBOLS

INDEX LISTED BY DESCRIPTION

DESCRIPTION

REF NAME

SYMBOL

A-Z W

Well

BH_WL

G

Well Hill Gravel

SG_WH

h

Westland Green Gravel

RT_WG

½

Westmill Lower Gravel

RT_WM

À

Whatton Sand and Gravel

RT_WH

¾

Wigston Sand and Gravel, glaciofluvial deposits

GFL_WI

©

Winter Hill Gravel

RT_WH7

¿

Wolston Clay (brickearth)

BRK_WC

^

Wolston Sand and Gravel, glaciofluvial deposits

GFL_WO

Z

Wolvercote Member river terrace

RT_WO3

Á

Woodford Gravel

RT_WD

¼

Woolford Heath Member, glaciofluvial deposits

GFL_WL

Y

Worked ground, small area

ART_WG

B

Wragby, Calcethorpe & Belmont, till

TIL_C

40

q

3

AREA ORNAMENTS LISTED BY DESCRIPTION

41

3 AREA ORNAMENTS

LISTED BY DESCRIPTION

Agglomerate

Chalk

General overprint stipple

AGGLOM

CHLK

STIPP

Anhydrite

Claystone

Gneiss

ANHY

CLST

GNEISS

Arenaceous seatearth

Conglomerate

Granite

ARE_ST

CONG

GRAN

Blown sand

Coursed rubble

Granite veining

BLSND

CRSRB

GRAN_V

(reference name)

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

Boulder clay

Crushed rock

BCLAY

CR_RCK

GR_SCH

Breccia

Disturbed ground

Gravel

BREC

DIST

GRAV

Calcareous tufa

Dolomite

Greywacke

CALTUF

DOLOM

GWACKE

Cataclastic rock

Foundered strata

CAT

FOUND

42

.

.

.

.

.

. .

. .

. .

. .

. .

Graphitic schist

Gypsum GYPS

LISTED BY DESCRIPTION

3 AREA ORNAMENTS

Igneous

Limestone beds

IG

LMST_B

(reference name)

Mixed group with calc-schist/ limestone LMST_G

Limestone thin bed partings

Mudstone

LMST_T

MDST

Landscaped ground

Made ground

Ooidal limestone

LASC

MADE

LMST_O

Landslip

Marble

Overprint stipple for various rock types Black

LAND

MARBLE

Lava

Marine overprint (white)

LAVA

MARINE

Infilled ground

.

.

INFILL .

Lava and tuff

Massive limestone

LAV_TU

LMST_M

ST_BLK

Overprint stipple for various rock types Cyan ST_CYN

Overprint stipple for various rock types Magenta ST_MAG

Limestone

Metasediment

LMST

METASD

Overprint stipple for various rock types Orange ST_OR

.

.

Limestone bands

Migmatisation

LMST_D

MIGM

Overprint stipple for various rock types Yellow

.

ST_YEL .

43

LISTED BY DESCRIPTION

3 AREA ORNAMENTS

.

.

.

.

.

.

.

.

.

.

Reworked gneisses

Silty mudstone

PEBBLE

GNE_RW

SLTMD

Pegmatite or vein complexes

Silty sandstone

PEG

Rubbly limestone; poorly bedded

Pelite

Sand

PELITE

SAND

Pebbles

.

.

.

.

SLTSND

LMST_R

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

SALT .

.

.

.

.

.

Pisoidal limestone

Sandstone

Tuff

LMST_P

SNDST

TUFF

Psammite

Sandy limestone

Turbidite

PSAMM

LMST_S

TURB

Quartzite

Shale

Worked ground

QUART

SHALE

WORK

Random rubble

Shell marl

Xenoliths

RNRBL

SHMRL

XENO

Reclaimed ground

Siltstone

RECL

SLTST

.

.

.

.

.

.

.

.

.

.

.

.

.

. .

Sodium salt

.

.

.

.

. .

.

.

.

. .

.

.

.

.

.

.

.

.

.

.

. .

.

(reference name)

44

4

LINE STYLES LISTED BY DESCRIPTION

45

4 LINE STYLES

LISTED BY DESCRIPTION

Aeromagnetic/Bouguer anomaly Axial plane trace of major anticline Axial plane traces of closely spaced anticline/ syncline pair Axial plane trace of major antiform Axial plane traces of closely spaced major antiform/ synform pair Axial plane trace of major reclined or vertical fold Axial plane trace of major recumbant fold Axial plane trace of major syncline Axial plane trace of major synform Axis of large-scale glacial flute Axis of large-scale glacial gouge

V

Backfeature marking former coastline, arrowheads denote uphill side

V

Backfeature marking former lake margin, arrowheads denote uphill side

V

Backfeature of terrace margin, arrowheads denote uphill side Base of lava flow Buried channel or valley margin Buried cliffline, crossmarks on beach side Cliffline, crossmarks on beach side

cm

cm

cm

cm

Cementstone Coal, inferred Coal, observed Coal, sub-Triassic Coal seam contour Coal seam, washout

46

4 LINE STYLES

LISTED BY DESCRIPTION

Crestline of elongate mound Crestline of esker (blue, orange or magenta) Crestline of linear feature Drumlin or dune line at base of mound Fault brecciation zone, inferred Fault brecciation zone, observed Fault, thrust conjectural Fault, thrust observed Incrop of fault at unconformity (sub-Triassic) Fault, normal inferred Fault, normal observed Fault, reverse Fault shearing zone, inferred Fault shearing zone, observed Fault, strike-slip Fault, thrust or slide, inferred Fossil horizon, algal band

B

B

B

B

B

Fossil horizon, brachiopod band

C

C

C

C

C

Fossil horizon, coral band

E

E

E

E

E

Fossil horizon, eustheria band Fossil horizon, lingula band

P

P

P

P

P

Fossil horizon, planolites band Geological boundary, artificial Geological boundary, drift

47

4 LINE STYLES

LISTED BY DESCRIPTION

Geological boundary, mass movement Geological boundary, solid inferred Geological boundary, solid intrusive Geological boundary, solid intrusive observed Geological boundary, solid observed Glacial meltwater or overflow channel, centre line Glacial meltwater channel margins H

H

H

H

Hydrothermal Igneous cutting margin, crossmarks on side of younger rock, inferred Igneous cutting margin, observed Igneous plutons Incrop of coal Incrop of marine band Ironstone, inferred Ironstone, observed Kettle hole Limit of diorite / grandiorite Limit of glacial advance, Gosforth oscillation limit Limit of glacial advance, Scottish readvance limit Limit of granite / pegmatite vein complex, within area of veining Limit of granite vein complex

V V V V V V V V V V V V V V

Limit of migmatisation,

V

towards migmatites

Limit of transgressive pegmatite veins, within areas of veins Lineament, probably fracture related

48

4 LINE STYLES

LISTED BY DESCRIPTION

Line of split coal seam, ornament on split side Magnetic layer or boundary Man made deposit boundary Marine band

v

v

Marked break in slope, arrowheads denote uphill side

v

Mass Movement boundary Metamorphic aureole,

towards intrusion

al

Metamorphic zone boundary with mineral or zone number

Pb

Mineral vein, with name of mineral Mining area, subsurface Mussel band Oil-shale, inferred Oil-shale, observed Outer edge of terrace Quarry

sa

sa

sa

sa

Sandstone bed Subsidence hollow, drift (not corresponding) Subsidence hollow, corresponding to drift boundary Subsidence hollow, solid (not corresponding) Subsidence hollow, corresponding to solid boundary Tonstein Trace of lower hinge of major monocline Trace of upper hinge of major monocline Unconformity ( marginalia only )

49