Location:
Shore of the Wouri river (25 km from the Atlantic ocean), City of Douala (long. 9 42'; Lat. 4 3'), Cameroon.
Provenance:
Mix of (1) ?volcanic source rich in quartz with (2) ?basaltic gas-rich lava; also, (3) some arid-climate components.
Texture:
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-->Coarse-grained (cU, median ca. 1000µ); poorly sorted, angular.
