From 1 - 4 / 4
  • Categories  

    This layer of the map based index (GeoIndex) shows the location of available Mineral Assessment Reports, the information for the index has been taken from the BGS UK Sand and Gravel Database. Each report studied the sand and gravel resources of an area of between one hundred and two hundred square kilometres. This layer shows individual polygons of the geographical areas covered by each report. Selecting the individual polygons via the map based index (GeoIndex) application gives details of the corresponding report title, number, author(s), subtitle and the date report was first published. The Department of the Environment commissioned this Report series from the British Geological Survey.

  • Categories  

    The UK Sand and Gravel Database was compiled during the production of the Industrial Mineral Assessment Reports. The Department of the Environment commissioned this Report series from the British Geological Survey. Data collection extended from the first IMAU report in 1969 to the last report in 1990. The dataset is complete and is derived from reports with some additional boreholes that were never published. Standard procedures were adopted for whole project. Each report studied the sand and gravel resources of an area of between one hundred and two hundred square kilometres. Specially commissioned boreholes on a one kilometre grid basis were used in conjunction with existing geological knowledge to make a resource level assessment of the volume and quality of sand and gravel resource available. A total of 12,563 boreholes were drilled, 53,721 Lithological units described and 54,128 samples collected and graded. This information is presented in the appendixes of the individual reports and as a single database. Data collection is complete. Only factual corrections to the data are occasionally made. The dataset includes the borehole location, total depth, unit thickness, unit lithologies, and grading information.

  • Categories  

    An important paper archive of a wide variety of miscellaneous geological information organised on the basis of its location within 1:50 000 scale geological map sheet areas in Great Britain. The majority of the data has been produced or collected by BGS staff since 1835 as part of the mapping programme. The data may not fit into any of the main collections, but is valuable for future projects and answering enquiries.

  • Categories  

    An important paper archive of a wide variety of miscellaneous geological information organised on the basis of its location within 1:10 000 scale geological map sheet areas in Great Britain. The majority of the data has been produced or collected from a wide variety of sources by BGS staff since 1835. Mainly acquired as part of the mapping programme new information is added on a regular basis. The data may not fit into any of the main collections, but is valuable for future projects and answering enquiries.