Subject ASC00010rv
The Quarterly journal of the Geological Society of London.
v.59 (1903), Page 272 (1903)
Smithsonian Libraries
BHL Page 41497241
Keywords
#geology sediments sandstone granite minerals geological strata Botswana South Africa Thickness in feet of sedimentary deposits of southern rhodesia Mapani Pan coal seam geology borehole Rhodesia coal grit shale mudstone conglomterate strata