The Roadside Geology of Namibia |
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Page 63
... quartz latite rheoignimbrites . The basalt flows and the massive quartz latite units at higher stratigraphic levels overlie the aeolian sandstones of the Etjo Formation of the Karoo Sequence , and fre- quently also overstep the Karoo ...
... quartz latite rheoignimbrites . The basalt flows and the massive quartz latite units at higher stratigraphic levels overlie the aeolian sandstones of the Etjo Formation of the Karoo Sequence , and fre- quently also overstep the Karoo ...
Page 64
... quartz latite horizons named the Goboboseb , Springbok and Tafelberg Quartz Latites . The Goboboseb Quartz Latite is the oldest , consists of three flow units and crops out along the southern margin of the lava field . The Sprinbok Quartz ...
... quartz latite horizons named the Goboboseb , Springbok and Tafelberg Quartz Latites . The Goboboseb Quartz Latite is the oldest , consists of three flow units and crops out along the southern margin of the lava field . The Sprinbok Quartz ...
Page 67
... quartz - tourmaline " nests " , up to 30 cm in diameter , which occur in all fa- cies of the granite . The " nests " consist of tourmaline , quartz , K - feldspar , plagioclase , biotite , fluorite , apatite , topaz and cassiterite . On ...
... quartz - tourmaline " nests " , up to 30 cm in diameter , which occur in all fa- cies of the granite . The " nests " consist of tourmaline , quartz , K - feldspar , plagioclase , biotite , fluorite , apatite , topaz and cassiterite . On ...
Contents
Namibia from the Archaean to the Cenozoic | 9 |
An overview of the Namibian mineralogy | 23 |
Present mineral production and exploration | 29 |
Copyright | |
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Common terms and phrases
amphibolites basalts Belt Brandberg Brukkaros calcrete Cenozoic Cenozoic sediments column for route composed conglomerate Craton Cretaceous crossed Damara Granite Damara Orogen Damara Sequence deposits diamond dolerite dolomite dunes Dwyka Formation dykes Erongo Escarpment Etendeka Etjo Fault Fish River Subgroup fossils Geological gneisses Grootfontein Hakos Group Henties Bay hills Hohewarte Complex Huab intruded Kalahari Basin Kalahari Group Karibib Karoo Sequence Keetmanshoop Kuibis Subgroup Kuiseb Formation Kunene landscape layers limestone Lüderitz Maltahöhe marble Mesoproterozoic metamorphic meteorite minerals Mulden Group Namaqualand Namaqualand Complex Namib Desert Namibia Nappe Naukluft northern Nosib Group occur Okahandja Omaruru Orange River Otavi Otavi Group Otjiwarongo outcrops Outjo overlain overlying PALAEOPROTEROZOIC pegmatites peneplain prominent quartz latite quartzite ridge road continues road cuts rocks sand sandstone schist Schwarzrand Subgroup seen Sesfontein shale sills Sinclair Sequence Spitzkuppe Swakop Group Swakopmund terrane underlain thrust Tsondab Tsumeb Tsumeb Subgroup turn-off Ugab underlain by Cenozoic valley volcanic Windhoek Zone