The map sheet: 1. Carte pédologique du bassin du Chari-Logone. Scale of 1:200 000. Date of publication: unknown.

A set of 2 map sheets: 1. Tontouta : carte des contraintes édaphiques. Scale of 1:50 000. Date of publication: unknown. 2. Tontouta : carte morpho-pédologique. Scale of 1:50 000. Date of publication: 1983.

This layer of the map based index (GeoIndex) shows the location of land and marine gravity observations on the UK mainland, Northern Ireland, offshore islands, tidal estuaries and seabed. Most of the surveys were carried out by the BGS but the database includes data originally acquired by other organisations and subsequently given to the BGS to be managed as part of the national archive. Complete coverage of the UK mainland with a station density of 1-2 stations per square kilometre. Unadjusted ship gravity, magnetic and bathymetry data acquired by BGS as part of its Offshore Reconnaisance Mapping Programme. Unadjusted ship gravity, magnetic and bathymetry data acquired by BGS as part of its Offshore Reconnaisance Mapping Programme. This programme commenced in 1967, and was funded mainly by the Department of Energy. Marine gravity readings are from unadjusted ship gravity and bathymetry data from various commercial and academic surveys between 1965 and 1994. Confidential M.O.D Hydrographic Office integrated ship gravity and magnetics surveys of NW Europe marine areas for which BGS acts as agent. Network adjusted gravity and magnetic compilations of data from BGS and non-BGS sources.

This is PSI data for Ancona, Italy. It has been provided by TRE as part of the ESA funded Terrafirma project.

This layer of the map based index (GeoIndex) shows the location of onshore UK boreholes known to BGS that have digital or paper geophysical borehole logs. The details given for each borehole are, the name of the borehole, the grid reference and the format, ie. paper or digital. Scattered distribution of boreholes, locally dense coverage, few logs from Scotland. The GeoIndex is updated at regular intervals but more information may be available than is shown at any one time.

This is PSI data for Ancona, Italy. It has been provided by TRE as part of the ESA funded Terrafirma project.

This is PSI data for Gulf_of_Corinth, Greece. It has been provided by TRE as part of the ESA funded Terrafirma project.

This is PSI data for Frazzano, Italy. It has been provided by TRE as part of the ESA funded Terrafirma project.

This is PSI data for Budapest, Hungary. It has been provided by Altamira Information as part of the ESA funded Terrafirma project.

This is PSI data for Berlin, Germany. It has been provided by DLR as part of the ESA funded Terrafirma project.