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    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.

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    The official BGS photographic archive contains an estimated 300,000 photographs. The archive has been built up systematically since its founding in 1891 and is becoming a very popular educational resource for images of the geology of the UK and overseas. A wide range of topics is represented: field geology, landscapes, oblique aerial photographs, geohazards, marine operations, fossil, rocks and photomicrographs of rocks and minerals in thin section. In addition there are an estimated 225,000 photographs held with former groups, projects and individual geoscientists. The collections hold a diverse range of photographic material which includes black and white or colour negatives, transparencies and prints. The film formats range from 35mm to 10"X8" which includes both film and large format glass plates.

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    This data set is an inventory of aerial photographs held at BGS, Murchison House office and consists of a MS Excel spreadsheet containing 11 worksheets. Each worksheet contains information pertaining to the different sub-collections within the collection (9 worksheets of aerial photographs, one for aerial photograph scans, one for satellite imagery). Quality and coverage of metadata varies from worksheet to worksheet, depending on the size of the sub-collection, its pre-existing organisation, and the way in which the sub-collection was brought together (if it was not a complete entity when the inventory was started). Areal extent ranges from Shetland in the N (1200000) to the southern Lake District in the S (480000) and from Barra in the W (65000) to Stockton-on-Tees in the E (450000). By late 2001 all photos (except those being worked on by cuurently by staff) were catalogued in the inventory spreadsheet. By late 2003, the inventory spreadsheet had been updated with newly purchased and newly discovered photos as well as modified to include details of digital holdings and satellite imagery.

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    A significant part of this data collection is geophysical survey data in digital form, being mainly instrumental recordings made during fieldwork. Derived data created during the subsequent processing and interpretation of the field data is described in 'Nirex Magnetic Tape Archives - Processed Data'. These data were originally stored on a variety of media. With the overall aim of delivering an efficient and effective archive service, the data have been consolidated onto DLT cartridges. Some related data, which were either analogue, on obscure media or in unknown formats have been retained in their original form. British Geological Survey maintains a full catalogue of the data, as an Access database.The data sets that comprise the magnetic archive are the following: Seismic surveys: marine, land and transition zone; field, navigation, statiatcs; Geophysical wireline logging of boreholes: routine wireline logging of investigation boreholes (gamma-ray, sonic, porosity, etc.); velocity surveys; dipmeter surveys;vertical seismic profiling; borehole televiewer (BHTV) surveys; formation microscanner (FMS) surveys; Ground surveys: magnetic; gravity; radiometric; thermal imaging; photographic imaging; in-flight videos. The ownership of NIREX (Nuclear Industry Radioactive Waste Executive) was transferred from the nuclear industry to the UK Government departments DEFRA and DTI in April 2005, and then to the UK's Nuclear Decommissioning Authority (NDA) in November 2006.

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    A significant part of this data collection is geophysical survey data in digital form being derived data created during the subsequent processing and interpretation of the field data described in 'Nirex Magnetic Tape Archives - Raw Data'. These data were originally stored on a variety of media. With the overall aim of delivering an efficient and effective archive service, the data have been consolidated onto DLT cartridges. Some related data, which were either analogue, on obscure media or in unknown formats have been retained in their original form. British Geological Survey maintains a full catalogue of the data, as an Access database. The data sets that comprise the magnetic archive are the following: Seismic surveys: demultiplexed and processed data; Geophysical wireline logging of boreholes: wireline derived data including synthetic seismograms; cross-hole tomography. The ownership of NIREX (Nuclear Industry Radioactive Waste Executive) was transferred from the nuclear industry to the UK Government departments DEFRA and DTI in April 2005, and then to the UK's Nuclear Decommissioning Authority (NDA) in November 2006.