Geochemical Baseline Survey Of The Environment (G-BASE) For The UK.

The G-BASE programme involves systematic sampling and the determination of chemical elements in samples of stream sediment, stream water and soil, to build up a picture of the surface chemistry of the UK. The average sample density for stream sediments and water is about one site per 1.5-2km square, and for soils one site per 2km square. Analytical precision is high with strict quality control to ensure countrywide consistency. Results have been standardised to ensure seamless joins between geochemical sampling campaigns. The data provide baseline information on the natural abundances of elements, against which anomalous values due to such factors as mineralisation and industrial contamination may be compared. Analytical data for the 150 microns fraction of soil and stream sediment samples are available for some or all of: Ag, As, B, Ba, Bi, Be, Ca, Ce, Cd, Co, Cr, Cs, Cu, Fe, Ga, K, La, Li, Mg, Mn, Mo, Nb, Ni, P, Pb, Rb, Sb, Se, Sn, Sr, Th, Ti, U, V, Y, Zn, and Zr. Most water samples have been analysed for alkalinity, pH, conductivity, F and U and some for multi-element analyses including Al, Cl, Na, Si, SO4,NO4, and TOC. The project now routinely determines the elements listed in the <2mm fraction of surface soils.

Citation proposal
. Geochemical Baseline Survey Of The Environment (G-BASE) For The UK.. https://metadata.bgs.ac.uk/geonetwork/srv/api/records/9df8df51-63dd-37a8-e044-0003ba9b0d98

Simple

Date ( Creation ): 1968

Identifier: http://data.bgs.ac.uk/id/dataHolding/13480412

Distributor

British Geological Survey

Environmental Science Centre,Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom

+44 115 936 3100

+44 115 936 3276

Point of contact

British Geological Survey

Environmental Science Centre,Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom

+44 115 936 3100

Maintenance and update frequency: annually Annually

GEMET - INSPIRE themes

Geology

BGS Thesaurus of Geosciences

Fluvial sediments , Stream sampling , Geology , Soil chemistry , Water chemistry , Geochemistry

Keywords

NERC_DDC

Access constraints: otherRestrictions Other restrictions

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: Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section (ipr@bgs.ac.uk ) for advice, should the position not be clear.

Spatial representation type: grid Grid

Denominator: 50000

Metadata language: English English

Topic category

Geoscientific information

Geographic identifier

ENG

Date ( Revision ): 2009

Geographic identifier

ENGLAND [id=150000]

Date ( Creation ): 1979

Geographic identifier

Date ( Revision ): 2009

Geographic identifier

SCOTLAND [id=140000]

Date ( Creation ): 1979

Geographic identifier

SCT

Date ( Revision ): 2009

Geographic identifier

UK [id=139300]

Date ( Creation ): 1979

Geographic identifier

UKM

Date ( Revision ): 2009

Geographic identifier

WALES [id=170000]

Date ( Creation ): 1979

Geographic identifier

WLS

Date ( Revision ): 2009

Supplemental Information: Regional geochemical Mapping commenced in the Caithness and South Orkney area carried out by the Institute of Geological Sciences (IGS -now BGS). Projected completion by 2015 Complete for Scotland, Wales, West Midlands, Northern England, Humber-Trent, Central England and East Anglia. Southern England ongoing. Soil samples average 1 per 2km square, sediment samples average 1 per 1.75 km square collected using 1:50 000 OS base maps. Geochemical mapping carried out according to International Geochemical Sampling methods described by IGCP 259.

Reference system identifier

OGP / urn:ogc:def:crs:EPSG::27700

Date ( Revision ): 2005

Distribution format

ATLAS - A3 format high quality coloured geochemical images with detailed descriptions including geology and mineralisation. ()

Distributor

British Geological Survey

Environmental Science Centre,Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom

+44 115 936 3100

+44 115 936 3276

OnLine resource: G-BASE Homepage
This page provides details on one of the BGS's major science budget funded projects the Geochemical Baseline Survey of the Environment (G-BASE).

Hierarchy level: dataset Dataset

Conformance result

Date ( Publication ): 2011

Explanation: See the referenced specification

Pass: false

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: false

Statement: Project initially called Regional Geochemical Reconnaissance Programme (RGRP) and subsequently Geochemical Survey Project (GSP). All G-BASE data is loaded to the BGS Geochemistry Database.