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Earth Sciences for Namibia's sustainable development


NamDat is the in-house mineral information system developed by the Geological Survey of Namibia (GSN).

The database runs on Microsoft Access on a Windows NT platform. The database is currently being edited of minor mistakes.

The database is presently made up of two interlinked components, namely Prospecting Grants and Mineral Deposits, with a third Exploration Data component in the initial stage.

Much of the information pertinent to mineral exploration is obtained from lapsed prospecting grant reports housed at the GSN. Such data include grant locations, name of previous grant holders, and reports and maps related to the exploration targets.

The spatial data has been digitised using the U.S. Geological Survey's GSMAP software to produce 1:250 000 scale colour index maps of all exploration grants. Utilising Global Positioning Systems, it is envisaged that this component will be linked to a management system for mineral titles in the office of the Mining Commissioner.

Over 1500 known mineral deposits ranging from mineral occurrences to active mines have been described spatially and cross-referenced to the 54-chapter Mineral Resources of Namibia handbook. Mineral deposits have been further characterised in terms of commodities, minerals, host lithologies, geological structures, and deposit type, shape and dimensions.

Details on exploration activities and results are being separately entered under headings of exploration grids, located anomalies, trenching, drilling and pitting. The spatial aspects of these data are also recorded in a regional geoscience Geographic Information System (GIS) which utilises ARC/INFO software.

NamDat currently allows the extraction of a great deal of practical information for the mineral exploration sector via screen queries, hardcopy reports and colour thematic maps. The availability of licensed digital products will further allow end users to integrate such data into their own datasets, thereby optimising time spent at the GSN.


Last updated on 12 November 2002
Published by the Geological Survey of Namibia, Windhoek, Namibia
Copyright Geological Survey of Namibia 1997, 1998, 1999, 2000

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