Reference System

MD_ReferenceSystem:

referenceSystemIdentifier:

RS_Identifier:

code:

http://www.opengis.net/def/crs/EPSG/0/32630

code:

WGS 84 / UTM zone 30N (EPSG::32630)

Identification

Data Identification:

citation:

Citation:

Title:

BGS Seabed Geology 10k: Anglesey version 1.0

Date:

CI_Date:

Date Type:

creation

date:

2022-08

Identifier:

RS_Identifier:

code:

http://data.bgs.ac.uk/id/dataHolding/13607968

Abstract:

The BGS Seabed Geology 10k: Anglesey digital map portrays the distribution of the different types of bedrock and sediments that are interpreted to represent the dominant geology within to the top 1-2 metres of the seabed to the north-west of Anglesey, at a scale of 1:10 000. It also includes the distribution of the main seabed morphological and geomorphological features (e.g. drumlins, sandwaves) and the principal structural features observed at rockhead (fractures). This digital map is the result of the interpretation of two high-resolution, multibeam echo-sounder (MBES) bathymetry datasets: (i) the Off Skerries HI1420 survey, collected by Net Survey in 2013 as part of the Civil Hydrography Programme (CHP) surveys managed by the Maritime and Coastguard Agency (MCA) for the UK Hydrographic Office; and (ii) the North St George’s Channel candidate Marine Conservation Zone (rMCZ) survey, collected jointly by JNCC and Cefas in 2012 for the Department for Environment, Food and Rural Affairs (Defra). MBES backscatter, physical samples (e.g. grabs, cores, and boreholes), academic papers and previous BGS geological interpretations at broader scales (250k and 50k scales) were used to further inform this geological interpretation. The bedrock is divided into three units: (i) Neoproterozoic to Palaeozoic age metamudstones and metasandstones of the Monian Supergroup; (ii) undifferentiated Lower Palaeozoic age rocks (mudstone, volcaniclastics, siltstone, slate); and (iii) limestone and sandstone of the Carboniferous Limestone Supergroup. The superficial deposits are composed of various types of glacial sediments (e.g. glacial till and morainic deposits) that were deposited underneath and around the margins of the last British-Irish Ice Sheet in the area, and also more recently deposited marine sediments.

Point of Contact:

Responsible Party:

Individual Name:

Enquiries

Organisation Name:

British Geological Survey

Contact Info:

CI_Contact:

phone:

CI_Telephone:

voice:

0115 936 3142

facsimile:

0115 936 3276

Address:

Delivery Point:

The Lyell Centre, Research Avenue South

city:

EDINBURGH

administrative Area:

LOTHIAN

Postal Code:

EH14 4AP

country:

United Kingdom

e-mail:

[email protected]

role:

distributor

Responsible Party:

Individual Name:

Enquiries

Organisation Name:

British Geological Survey

Contact Info:

CI_Contact:

phone:

CI_Telephone:

voice:

0115 936 3142

facsimile:

0115 936 3276

Address:

Delivery Point:

The Lyell Centre, Research Avenue South

city:

EDINBURGH

administrative Area:

LOTHIAN

Postal Code:

EH14 4AP

country:

United Kingdom

e-mail:

[email protected]

role:

pointOfContact

Resource Maintenance:

MD_MaintenanceInformation:

maint. / update frequency:

notPlanned

Graphic overview:

Browse Graphic:

File Name:

https://resources.bgs.ac.uk/images/geonetworkThumbs/e7aee2db-79aa-2244-e053-0937940a6829.png

Descriptive Keywords:

Keywords:

keyword:

http://www.eionet.europa.eu/gemet/concept?cp=13&langcode=en&ns=5

keyword:

Geology

Thesaurus Name:

Citation:

Title:

GEMET - INSPIRE themes, version 1.0

Date:

CI_Date:

date:

2008-06-01

Date Type:

publication

Keywords:

keyword:

UK Location (INSPIRE)

keyword:

Geomorphology

keyword:

Mapping

keyword:

Bed rock

keyword:

Sea floor

keyword:

Structural geology

keyword:

Geology

keyword:

Surficial geology

keyword:

EGDI

Thesaurus Name:

Citation:

Title:

BGS Thesaurus of Geosciences

Date:

CI_Date:

date:

2022

Date Type:

revision

Keywords:

keyword:

http://www.data.gov.uk

keyword:

UK Location (INSPIRE)

keyword:

https://data.geoscience.earth/ncl/project/_48

keyword:

EGDI

Type:

dataCentre

Keywords:

keyword:

NERC_DDC

Resource Constraints:

MD_LegalConstraints:

Access Constraints:

otherRestrictions

Other Constraints:

licenceOGL

Other Constraints:

Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Other Constraints:

http://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/noLimitations

MD_LegalConstraints:

Use Constraints:

otherRestrictions

Other Constraints:

The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.

Other Constraints:

Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Spatial Representation Type:

vector

Spatial Resolution:

Resolution:

Equivalent Scale:

Representative Fraction:

denominator:

10000

language:

eng

topicCategory:

geoscientificInformation

Extent:

Geographic Element:

Geographic Bounding Box:

westBoundLongitude:

-5.3300

eastBoundLongitude:

-4.4900

southBoundLatitude:

53.1600

northBoundLatitude:

53.6900

Geographic Description:

Geographic Identifier:

RS_Identifier:

authority:

Citation:

Title:

British Geological Survey Gazetteer: Gazetteer of sea areas

Date:

CI_Date:

Date Type:

revision

date:

2010

code:

IRISH SEA [id=2001430]

Temporal Element:

TemporalExtent:

extent:

begin / end:

begin:

unknown

end:

<2022-08

Distribution

Distribution:

Distribution Format:

Format:

Format Name:

ESRI Shapefiles

version:

Distributor:

Distributor Contact:

Responsible Party:

Individual Name:

Enquiries

Organisation Name:

British Geological Survey

Contact Info:

CI_Contact:

phone:

CI_Telephone:

voice:

0115 936 3142

facsimile:

0115 936 3276

Address:

Delivery Point:

The Lyell Centre, Research Avenue South

city:

EDINBURGH

administrative Area:

LOTHIAN

Postal Code:

EH14 4AP

country:

United Kingdom

e-mail:

[email protected]

role:

distributor

Transfer Options:

Digital Transfer Options:

onLine:

CI_OnlineResource:

linkage:

https://www.bgs.ac.uk/datasets/

name:

BGS Datasets Homepage

function:

information

Digital Transfer Options:

onLine:

CI_OnlineResource:

linkage:

https://doi.org/10.5285/d2f2f8e8-8e97-40fb-9207-875563d0fec0

name:

Digital Object Identifier (DOI)

function:

information

Digital Transfer Options:

onLine:

CI_OnlineResource:

linkage:

https://mapapps2.bgs.ac.uk/geoindex_offshore/home.html

name:

GeoIndex Offshore

function:

information

Data Quality

Data Quality:

Scope:

DQ_Scope:

level:

dataset

Level Description:

MD_ScopeDescription:

other:

dataset

Report:

Domain Consistency:

Result:

Conformance Result:

specification:

Citation:

Title:

INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

Date:

CI_Date:

Date Type:

publication

date:

2011

explanation:

See the referenced specification

pass:

Domain Consistency:

Result:

Conformance Result:

specification:

Citation:

Title:

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date:

CI_Date:

Date Type:

publication

date:

2010-12-08

explanation:

See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

pass:

Lineage:

LI_Lineage:

statement:

The delineation and classification of the geological substrate units were based primarily on what can be observed and interpreted from the multibeam echo-sounder (MBES) bathymetry data collected during the Civil Hydrography Programme (CHP) surveys managed by the Maritime and Coastguard Agency (MCA) and a candidate Marine Conservation Zone (MCZ) survey for the Department for Environment, Food and Rural Affairs (Defra). The two survey areas mapped were: • HI1420 – Off Skerries TSS Blk A-E 4m SB (2013) • 118503 North St Georges Channel MCZ 4m SB (2012) MBES backscatter, physical samples (e.g. grabs, cores, and boreholes) and previous geological mapping were also used to further inform the geological interpretation. The geological interpretation was undertaken in 2020-2021, by A. Finlayson, E. Phillips, R. Kendall, G. Carter and J. Everest in an ESRI ArcGIS project using the BGS SIGMA Desktop application. The geological linework was captured at a scale ranging from 1:5000 to 1:7000, to ensure smooth linework when the dataset is viewed at a scale of 1:10000. Bedrock and superficial deposits were mapped into two independent SIGMA layers and later merged to create the Seabed Substrate layer included in this dataset. Additional attribute fields were added to the layers, in particular to the geomorphology, to complement the information captured automatically by the SIGMA. The methodology used is described in more detail in the user guide for this dataset OR/22/059.

Metadata

File Identifier:

e7aee2db-79aa-2244-e053-0937940a6829

language:

eng

Resource type:

dataset

Metadata Contact:

Responsible Party:

Organisation Name:

British Geological Survey

Contact Info:

CI_Contact:

phone:

CI_Telephone:

voice:

+44 131 667 1000

Address:

Delivery Point:

The Lyell Centre, Research Avenue South

city:

EDINBURGH

administrative Area:

LOTHIAN

Postal Code:

EH14 4AP

country:

United Kingdom

e-mail:

[email protected]

role:

pointOfContact

Date Stamp:

2025-07-09

Metadata Standard Name:

http://vocab.nerc.ac.uk/collection/M25/current/GEMINI/

Metadata Standard Name:

UK GEMINI

Metadata Standard Version:

2.3

Dataset URI:

http://data.bgs.ac.uk/id/dataHolding/13607968