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G-BASE stream sediment samples

The BGS Geochemical Baseline Survey of the Environment (G-BASE) was the national strategic geochemical mapping programme in Great Britain. The project set out to establish the chemistry of the surface environment by the collection and analysis of stream sediment, stream water and soil samples. Beginning in the late 1960s in northern Scotland and moving southwards across the country, the primary focus was mineral exploration, however, the project quickly developed to address important environmental concerns. The final G-BASE samples were collected in southern England in 2014. The outputs from the G-BASE project provide an invaluable, systematic baseline of geochemical information for Great Britain, serving as a marker of the state of the environment against which to measure future change. Stream sediments were the primary sample medium for G-BASE, with an average density of one site per 1.5 km square. The drainage sampling sites cover most of Great Britain. Sediment was collected from the centre of the stream and sieved through two sieves (2 mm and 150 µm) to obtain a fine grain-size fraction of <150 microns. Analytical data (by a variety of analytical methods, including XRF and direct-reading optical emission spectrometry (DR-OES) for the <150 micron fraction of stream sediment samples are available for some or all of the following elements: Ag, As, Ba, Bi, Br, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, Ga, Ge, Hf, I, K, La, Mg, Mn, Mo, Nb, Ni, P, Pb, Rb, Sb, Sc, Se, Se, Sn, Sr, Ta, Te, Th, Ti, Tl, U, V, W, Y, Zn and Zr. Some stream sediment samples were originally collected as part of the Mineral Reconnaissance Programme (MRP), and later re-analysed for G-BASE. These samples may have been assigned a new sample number, but will plot at the same site. For more information about accessing these samples and their analytical results, contact BGS Enquiries (enquries@bgs.ac.uk ).

Simple

Date (Creation)
2000
Identifier
http://data.bgs.ac.uk/id/dataHolding/13605451
Distributor
  British Geological Survey - Enquiries
The Lyell Centre, Research Avenue South , EDINBURGH , LOTHIAN , EH14 4AP , United Kingdom
0115 936 3142
0115 936 3276
Point of contact
  British Geological Survey - Enquiries
The Lyell Centre, Research Avenue South , EDINBURGH , LOTHIAN , EH14 4AP , United Kingdom
0115 936 3142
0115 936 3276
Distributor
  British Geological Survey - Enquiries
Environmental Science Centre, Nicker Hill, Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom
0115 936 3143
0115 936 3276
Point of contact
  British Geological Survey - Enquiries
Environmental Science Centre, Nicker Hill, Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom
0115 936 3143
0115 936 3276
Maintenance and update frequency
notPlanned Not planned
GEMET - INSPIRE themes, version 1.0
  • Geology
BGS Thesaurus of Geosciences
  • Geochemical background
  • Geochemical maps
  • Geochemical sampling
  • Geochemistry
  • Sampling
  • Stream sediment sampling
  • EGDI
  • Sample analysis
  • Scottish SDI
  • Geology
  • Geochemical data
  • UK Location (INSPIRE)
dataCentre
  • UK Location (INSPIRE)
  • Scottish SDI
  • EGDI
Keywords
  • NERC_DDC
Access constraints
otherRestrictions Other restrictions
Other constraints
no limitations
Other constraints
The dataset is made freely available for access, e.g. via the Internet. Either no third party data / information is contained in the dataset or BGS has secured written permission from the owner(s) of any third party data / information contained in the dataset to make the dataset freely accessible.
Use constraints
otherRestrictions 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
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Other constraints
The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (iprdigital@bgs.ac.uk ) if further advice is required with regard to permitted usage.
Spatial representation type
vector Vector
Metadata language
EnglishEnglish
Topic category
  • Geoscientific information
Geographic identifier
GBN

Date (Revision)
2009

Geographic identifier
GREAT BRITAIN [id=139600]

Date (Creation)
1979

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Begin date
1968
End date
2014
Unique resource identifier
OSGB 1936 / British National Grid (EPSG::27700)
Unique resource identifier
WGS 84 (EPSG::4326)
Distribution format
Distributor
  British Geological Survey - Enquiries
The Lyell Centre, Research Avenue South , EDINBURGH , LOTHIAN , EH14 4AP , United Kingdom
0115 936 3142
0115 936 3276
Distributor
  British Geological Survey - Enquiries
Environmental Science Centre, Nicker Hill, Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom
0115 936 3143
0115 936 3276
OnLine resource
Geochemical baseline survey of the environment (G-BASE) ( WWW:LINK-1.0-http--link )

The BGS Geochemical Baseline Survey of the Environment (G-BASE) is the national strategic geochemical mapping programme in Great Britain. The project set out to establish the chemistry of the surface environment by the collection and analysis of stream sediment, stream water and soil samples.

Hierarchy level
dataset Dataset
Other
dataset

Conformance result

Date (Publication)
2011
Explanation
See the referenced specification
Pass
No

Conformance result

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
Sampling and data collection procedures evolved over the course of the G-BASE project. More information may be found in the G-BASE field procedures manual (2005): https://nora.nerc.ac.uk/id/eprint/5190/. The G-BASE project was initially called the 'Regional Geochemical Reconnaissance Programme' (RGRP) and subsequently the 'Geochemical Survey Project' (GSP). All G-BASE data have been loaded into the BGS Geochemistry Database.
File identifier
9df8df53-2a85-37a8-e044-0003ba9b0d98 XML
Metadata language
EnglishEnglish
Hierarchy level
dataset Dataset
Date stamp
2025-11-13
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  British Geological Survey
The Lyell Centre, Research Avenue South , EDINBURGH , LOTHIAN , EH14 4AP , United Kingdom
+44 131 667 1000
Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13605451
 
 

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Spatial extent

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Keywords


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