1. The Geological Survey of Namibia: From colonial office to national geoscience institution.
- Author
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Nguno, Anna K. and Schneider, Gabriele I. C.
- Subjects
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SCIENCE museums , *GEOLOGICAL surveys , *EARTH sciences , *ENVIRONMENTAL sciences , *GEOLOGICAL maps , *DIGITAL mapping , *GEOLOGICAL research - Abstract
The Geological Survey of Namibia (GSN) is the national institution for earth sciences and geological resources. The roots of the institution go back to 1903, when the first government geologist took up his duties in Windhoek. When diamonds were discovered in southern Namibia in 1908, an extensive mapping project was carried out in the area. The outbreak of the First World War brought geological activities of the Government to a standstill, but the activities of company geologists continued after the surrender of the German troops. After the First World War, the Government of the Union of South Africa opened up a branch of the Geological Survey of South Africa in Windhoek. Mapping of the territory was the main task of this branch. In 1932, the branch was also given the duty of administering mining legislation and a staff member was appointed as Inspector of Mines and Mining Authority. During the Second World War, the branch played an important role in the exploration for strategic minerals. After the Second World War, the search for water became the foremost task in the arid environment of Namibia, and hydrogeologists were consequently appointed in 1945. By the early 1960s, the draft of a handbook on the mineral resources of Namibia had been completed, and in 1965 the first 1:1 million geological map of Namibia was published. A coal drilling programme was carried out in the Ovambo Basin, and offshore petroleum exploration began. In 1979, the GSN became an independent Directorate in the Department of Economic Affairs of the administration of South-West Africa. Hydrogeology was transferred to the Department of Water Affairs, and the activities centred on mapping, particularly in the complex Damara Orogen. Descriptions of the stratigraphy of Namibia were published and a new inventory of the mineral resources of the country was compiled. In 1981, a revision of the 1:1 million geological map was published. Several 1 : 250 000 maps followed, cooperative projects with universities greatly expanded, and the flow of publications on regional geology significantly increased. Following Namibian independence, the GSN became a directorate within the Ministry of Mines and Energy. Restructuring in1993 resulted in the establishment of the three divisions of Regional Geoscience, Applied Geoscience and Geotechnology. Numerous cooperative projects with foreign countries were initiated, including the establishment of GIS and substitution of conventional cartography by digital methods. The totally revised, restructured and updated Mineral Resources Handbook was finally published in 1992. 1994 saw the relocation of the GSN to a new, purpose-built complex with improved facilities, such as modern geochemical and geotechnical laboratories, a core shed, and the National Earth Science Museum and National Energy and Earth Science Information Centre. Between 1993 and 2016 the total staff of the GSN doubled to 142. Its functions and responsibilities increased proportionally, including the acquisition and interpretation of high-resolution, countrywide airborne geophysical data, environmental appraisal of the impacts of both human activities and natural hazards, maintenance of seismic stations as part of the Global Seismic Network and Global International Monitoring System, launch of a comprehensive geoscience database, and participation in a variety of international collaborative projects such as the International Geoscience Programme (IGCP), and investment promotion. The High-Resolution Airborne Geophysical Data Acquisition Programme, which covers approximately 97% of the country, was completed in 2011. During the period of 2013 to 2019, 59 new 1 : 50 000 scale geological maps covering an area of almost 28 000 km2 in southern Namibia were produced. In recognition of the increasing importance of environmental management of mining and exploration activities, the GSN undertook a detailed Strategic Environmental Impact Assessment of the Namibian Uranium Province, and is implementing a Strategic Environmental Management Plan of this province since 2011. In 2016, the Directorate of GSN was elevated to the GSN Department headed by a Deputy Executive Director of the Ministry of Mines and Energy. The focus remained on regional geological and geophysical mapping, research and appraisal of mineral deposits and mineral occurrences, geochemical research for mineral exploration and environmental baseline studies, and engineering and environmental geology. Investment promotion through the compilation of promotional material, as well as attending and mounting exhibitions at various international conferences and trade fairs gained more and more importance.Today, the GSN is a modern research institution with excellent facilities, and tasks include mapping, geophysics, remote sensing, cartography, economic geology, geochemistry, engineering geology and environmental geology. Research data are accessible through data bases and are disseminated in digital as well as conventional formats. The GSN also continues to operate the National Earth Science Museum and the National Energy and Earth Science Information Centre. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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