SOUTHERN AND EASTERN AFRICAN MINERAL CENTRE - SEAMIC

During the GEODESA project of SEAMIC in 1998 and 1999, different digital data sets
of Manica, Tete and Zambezia Provinces were digitized, which included the following:
• The sample locations including the assay (Cu, Co, Ni, Zn) of Mavita-Gogoi area in
Manica Province;
• Generation of Mineral Occurrence data set from the same map (commodity, type of
mineralization, location and commodity number);
• Digitalization of sample location points from Regional reconnaissance and follow up
geochemical maps and join assay data (Cu, Co, Ni, Zn, Pb) scanned to MS Excel;
• The UNDP Geochemical maps (Cu, Co, Ni, Pb, Cr, Mo, Zn) of Tete province namely
Monte Caperimbeua, Rio Máuè, Cadzomba, Metengobalame, Macungua, Cacomue,
Dezenza, Chitipi, Capitaciria, Namadende, Domue and Furancungo have been digitised
and the data are available;
• The data set from Zambezia Province done by Aquater (20 elements) was converted to
MS Excel format which can be imported into any GIS package; and
• Under Greenstone Belt project (Lupiliche-Metangula, Niassa province) - Geological,
geochemical, stream sediment samples, rock samples and ternary maps at a scale
1:50,000 have been produced and digitized.
As part of Mineral Resource Management Capacity Building Project, Geochemical and
Industrial Mineral Surveys (GIM) were started in March 2005 by a consortium of GTK
and Gondwana Ltd. The survey is expected to be completed by the end of 2007.
The project was divided into three phases:
- Phase I: Compilation and synthesis of existing data (info of earlier geochemical surveys,
available samples (including reanalysis), design of GDB, training, GIS)
a) Scanning of the maps (map mosaics)
b) Georeferencing
c) On-the-screen digitizing (data tables):
1) sample points
2) calculating the coordinates (UTM/ WGS 84/Zone 36S - metric system)
3) adding the analytical data into data tables
d) the Survey Information Table (SIT); METADATA
e) the Analysis Data Tables (ADT) containing the actual analytical and coordinate
data (UTM/WGS 84 -Zone 36S).
- Phase II: Execution of new surveys (two stages: fieldwork and training)
1) regional soil sampling survey, and
2) detailed soil-sampling
- Phase III: Final Products (GDB with existing survey data)
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National Directorate of Geology
Praca 25 de Junho No. 380
PO Box 215
Maputo - Mozambique