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
British Geological Survey. Geochemical Baseline Survey Of The Environment (G-BASE) For The UK.. https://services.mspdata.eu:/geonetwork/srv/api/records/9df8df51-63dd-37a8-e044-0003ba9b0d98

Simple

Date ( Creation )
1968
Identifier

http://data.bgs.ac.uk/id/dataHolding/134804 12

  Distributor

  +44 115 936 3276 

  Point of contact

  Point of contact

  Custodian

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

Use limitation

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.

Access constraints
otherRestrictions Other restrictions
Other constraints

otherRestrictions

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

GB

 

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

N
S
E
W


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.

    (

    Not entered

    )

  Distributor

  +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.

Metadata

File identifier
9df8df51-63dd-37a8-e044-0003ba9b0d98   XML
Metadata language
English English
Hierarchy level
dataset Dataset
Date stamp
2017-01-17
Metadata standard name

NERC profile of ISO19115:2003

Metadata standard version

1.0

  Point of contact

Dataset URI

http://data.bgs.ac.uk/id/dataHolding/134804 12

 
 

  Overviews


Provided by

Access to the portal

Associated resources

Not available