The Roadside Geology of Namibia |
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Page 63
... basaltic lava types can be geochemically distinguished , namely the Tafelberg , Albin , Khumib , Huab and Tafelkop Basalts . The Tafelberg Basalts are by far the most abundant basalt type in the main Etendeka lava field . They are ...
... basaltic lava types can be geochemically distinguished , namely the Tafelberg , Albin , Khumib , Huab and Tafelkop Basalts . The Tafelberg Basalts are by far the most abundant basalt type in the main Etendeka lava field . They are ...
Page 66
... basalt and basaltic andesite to andesite . Most basalts are considerably altered and commonly amygdaloidal , with vesicles filled with calcite and chalcedony . The alteration also caused local growth of quartz , actinolite , epidote and ...
... basalt and basaltic andesite to andesite . Most basalts are considerably altered and commonly amygdaloidal , with vesicles filled with calcite and chalcedony . The alteration also caused local growth of quartz , actinolite , epidote and ...
Page 172
... Basalt . These Early Jurassic basalts , approximately 180 Ma old , accompany the road for a part of the rest of the journey to Mariental . The Kalkrand basalts , which cover an area of approximately 10 000 km2 to the NW of Mariental ...
... Basalt . These Early Jurassic basalts , approximately 180 Ma old , accompany the road for a part of the rest of the journey to Mariental . The Kalkrand basalts , which cover an area of approximately 10 000 km2 to the NW of Mariental ...
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