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10000

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  • Data on the physical properties (transmissivity, storage coefficient, porosity and permeability) of aquifers in England and Wales. Compiled by BGS staff from paper records of field and laboratory testing held by BGS, the Environment Agency and other organisations. Contains summary data on approximately 20,000 pump tests at over 2000 discrete locations. Raw data may be available on request. The majority of BGS and EA pump test data is included for both major and minor aquifers, but in minor aquifers this is complemented by data on specific yield. Laboratory determinations of porosity and permeability are limited to open file BGS data only. All data subject to similar processing and interpretation, but raw data highly variable.

  • Contains digitised mine plan contours, spot heights and worked ground outlines on key coal seams from the Midland Valley in ASCII or ArcView format. Incomplete, only some seams and some areas digitised. All contours digitised on key seams, worked ground outlines simplified, spot heights digitised where no contours exist.

  • This document data set contains paper copies of selected geophysical borehole logs made from the master data set held by the BGS National Geological Records Centre (NGRC) at Keyworth. These have been made for interpretation. Most data are within the UK onshore area; although there are some UK near-shore and offshore (North Sea, Irish Sea) and foreign data. Most data were acquired for commercial hydrocarbon exploration and subsequently provided to BGS for use on specific projects. Some data were acquired by BGS and other public-sector bodies for research purposes (e.g. geothermal energy). The documents are dyeline prints or plain-paper photocopies. They are stored folded in boxes, approx 20 logs per box, approx 500 boxes. There are some duplicates. Only a sub-set of the available borehole logs have been copied, usually for deep boreholes or boreholes of special significance in the interpretation of seismic data. Mostly concentrated in areas prospective for coal, oil and gas.

  • The joint PHE-GSNI-BGS digital Radon Potential Dataset for Northern Ireland provides the current definitive map of radon Affected Areas in Northern Ireland. The Radon Potential map for Northern Ireland shows the estimated percentage of homes in an area exceeding the radon Action Level. This is the basic information to assigning the level of protection required for new buildings and extensions, as described in the Building Research Establishment guidance BR-413 Radon: Guidance on protective measures for new dwellings in Northern Ireland (2004). The Radon Potential map for Northern Ireland is based on PHE indoor radon measurements and 1:10 000 or 1: 250 000 scale digital geology information provided by the Geological Survey of Northern Ireland (GSNI). The indoor radon data is used with the agreement of the Northern Ireland Environment Agency and PHE. Confidentiality of measurement locations is maintained through data management practices. Access to the data is restricted. Radon is a natural radioactive gas, which enters buildings from the ground. Exposure to high concentrations increases the risk of lung cancer. Public Health England (PHE) recommends that radon levels should be reduced in homes where the annual average exceed 200 becquerels per cubic metre (200 Bq m-3), the Action Level. PHE defines radon Affected Areas as those with 1% chance or more of a house having a radon concentration at or above the Action Level. Further information on radon can be obtained from www.ukradon.org

  • The Land Survey Plans collection of c.1,520 plans consists largely of mine plans acquired by the Survey, including 492 non-coal mine plans deposited by the National Coal Board 1984-87, and copies of mine plans derived from various sources including '6-inch reductions'. The collection also contains about 500 miscellaneous plans extracted from other Land Survey records in order to benefit from specialised systems of archival storage. The Survey's collection of Northern England mine plans are being added to the LSP collection. The collection supplements the Plans Of Abandoned Mines (Other than Coal & Oil Shale) in Scotland (NONCOALPLANSCO) providing an index to plans other than coal and oil shale for Scotland. Indexed on BGS Plans Database Index. Coal Authority hold some non-coal plans for Scotland. All non-confidential data held by NGRC(N) is available to users. Mainly coalfield areas of Central Scotland.

  • The map show the broad distribution of the industrial, including construction, mineral resources of Britain and the main sites where these are worked. Over extensive areas bedrock is covered by superficial deposits, including economically important sand and gravel resources. These superficial deposits are not shown on the map. Resources have been defined by dominant lithology (rock type). The map is a synthesis of the mineral resources and mineral working data held by the BGS in 1996. The published (paper) map has not been superseded however the digital mineral resources and mineral workings data has since been superseded. The map is logically consistent throughout.

  • Data from projects that investigated the migration, transport and retardation processes of naturally occuring trace elements, as analogues the behaviour in the geosphere environment, of radionuclides from radioactive wastes. Study sites included: the Quaternary Broubster Peat Bog, near Thurso in Caithness (study of the migration behaviour and characteristics of U, Th, Ra, Pb, Cu, Zn, organic complexes such as fulvic and humic acids); the Needle's Eye site (Quaternary estuarine and marsh/mudflat sediments) on the Solway Coast of Dumfries and Galloway (study of the migration and retardation behaviour of U in Quaternary sediments and fractured Palaeozoic source rocks); Study of U geochemistry and transport behaviour from uranium-rich mine wastes at the South Terras Mine site, near St Austell, Cornwall; Study of the geochemistry of diffusion of Cl and I from marine source sediments into lacustrine sediments in Quaternary sediments from Loch Lomond. Data consists entirely of published reports of geological, geochemical, hydrochemical petrological and mineralogical information. The data includes descriptive and numerical data but is not digitally available in its present state.

  • The database contains a range of geochemical data for metamorphosed limestones from the Dalradian of Scotland and Northern Ireland. The data include a) whole-rock geochemical analyses by XRF (X-Ray Fluorescence) for major oxides and a range of trace elements for several hundred samples, b) a number of whole-carbonate O (oxygen) and C (carbon) stable isotope and Sr (strontium) data, c) electron microprobe mineral data on carbonates and calc-silicate minerals and d) ion-probe O stable isotope and mineral trace element data for calcites in a small number of samples. The samples from which the data have been derived were collected from a wide range of outcrops within the Scottish and Irish Dalradian, mainly concentrated in the North East Grampian Highlands of Scotland. The data have been collected mainly to support the mapping and scientific work being undertaken in the Grampian Highlands by BGS since the early 1980s. The database includes some data from the literature. All samples are located by British National Grid coordinates to the nearest 10m or better. The isotope data were acquired as part of a PhD study by C W Thomas in the late 1990s. The database is not currently being added to, but is still being used in various studies. The combined data provide wide-ranging insights into marine chemistry contemporary with deposition of the limestones and the way in which this chemistry changed with time during the Neoproterozoic, and they elucidate subsequent effects of diagenesis and metamorphism and the outcrop and grain-scale. The data set is largely complete with regard to geochemical data, but still requires some editing to bring all fields up to date, particularly with regard to lithostratigraphical assignation. The data are currently held in MS Access tables and can conveniently be displayed via GIS or abstracted in tabular form and used in spreadsheets, statistical analysis and graphing software.

  • Manuscript geological maps produced by the Survey geologists or other recognised geologists on County Series (1:10560) and National Grid (1:10560 & 1:10000) Ordnance Survey base maps of Great Britain. A small number are produced at larger scale. Similar maps compiled from other sources. Maps produced since the 1850's, current holdings over 35,000 maps, all now scanned and available internally as image files.

  • Collections of Aerial Photographs purchased or obtained by BGS and its precursors as part of its surveying activities. Data covers mainly Great Britain or areas where BGS has worked overseas and dates from the 1940's. The collection is incomplete and there are copyright and other constraints on its use.