GSNI 250K Bedrock

A 1:250,000 map showing the main geological bedrock divisions in Northern Ireland. The bedrock shown on GeoIndex map comprises the bedrock geology, which represents the outcrops (at surface) and subcrops (at near-surface, beneath superficial deposits) in Northern Ireland. For each rock unit there is a brief generalised description showing the major rock group, rock type and age under the following headings. LEX_D: The name of the selected area. This can be a group, formation or igneous intrusion e.g. dyke. LEX_RCS: Map code as it appears on the published 1:250,000 map. RCS_D: The name of the dominant types of rock (lithologies) in the different areas shown on the map e.g. granite. The names of the rock types given here are often generalisations, appropriate for the large areas of geological coverage at this scale. These areas may include a number of different geological formations whose distribution can only be portrayed on more detailed geological maps. RANK: Identifies formations and groups. Min_Time_D and Max_Tim_D: The age of the rock unit in terms of periods, relatively smaller units of geological time e.g. Carboniferous, Jurassic etc. Some of the map areas include rocks with a range of ages and these are shown as such e.g. Triassic to Cretaceous. The oldest metamorphic rocks are described as Moinian and Dalradian. The rocks range in age from those deposited relatively recently, some 2 million years ago, back to ancient and highly altered Precambrian rocks over 2500 million years old. In broad terms the youngest rocks are found in the south and east of the UK, the oldest in the north and west. VERSION: Version of the data. RELEASED: Date of release/update of the data. CAUTION Because of the generalisation and simplification used in the compilation of this map, it should not be used to determine the detailed geology of any specific sites. It is best used to provide a basic understanding of the geology of the country in general, and for showing the geology of large regions where broad trends are more important than specific details. Persons interested in the detailed geology of particular sites should consult the latest large-scale maps or the Geological Survey of Northern Ireland.

Date (Creation): 2001

Citation identifier: http://data.bgs.ac.uk/id/dataHolding/13605553

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	gsni@economy-ni.gov.uk	Distributor
British Geological Survey	Enquiries	gsni@economy-ni.gov.uk	Point of contact
British Geological Survey	Enquiries	gsni@economy-ni.gov.uk	User

Maintenance and update frequency: Continual

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

Geology
Field geology
General geology
UK Location (INSPIRE)

dataCentre

UK Location (INSPIRE)

Keywords

NERC_DDC

Access constraints: Other restrictions

Other constraints: licenceOGL

Other constraints: otherRestrictions

Use constraints: Other restrictions

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: Conditions unknown

Spatial representation type: Grid

Denominator: 50000

Language: English

Topic category

Geoscientific information

Geographic identifier: NIR
ISO 3166_1 alpha-3 2009 revision

Geographic identifier: NORTHERN IRELAND [id=181000]
British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation

End date: 2013 Before

Unique resource identifier: TM65 / Irish National Grid (EPSG::29900)

Distribution format

Name	Version

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	gsni@economy-ni.gov.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	http://mapapps2.bgs.ac.uk/GSNI_Geoindex/home.html	GSNI GeoIndex Homepage

OnLine resource

Protocol	Linkage	Name
	https://www.opendatani.gov.uk/dataset/gsni-250k-geology	Open Data NI - 250k Geology homepage

Hierarchy level: Dataset

Other: dataset

Conformance result

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

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

Conformance result

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 (Publication): 2010-12-08

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

Pass: No

Statement: the bedrock geology represents the outcrops (at surface) and subcrops (at near-surface, beneath superficial deposits) in Northern Ireland.