The Roadside Geology of Namibia |
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Page 52
... volcanic craters formed by multiple shal- low explosive eruptions . Today , Brukkaros rises on top of a large ... volcanic history of Brukkaros and its surrounding volcanic field , which also sheds light on the geological history of the ...
... volcanic craters formed by multiple shal- low explosive eruptions . Today , Brukkaros rises on top of a large ... volcanic history of Brukkaros and its surrounding volcanic field , which also sheds light on the geological history of the ...
Page 66
... volcanic phase was an explosive eruption and intrusion of rhy- olitic magmas . Rhyolites occur as erosional remnants of rheomorphic tuff at the top of the volcanic sequence , and rhyolite dykes are especially com- mon in the ...
... volcanic phase was an explosive eruption and intrusion of rhy- olitic magmas . Rhyolites occur as erosional remnants of rheomorphic tuff at the top of the volcanic sequence , and rhyolite dykes are especially com- mon in the ...
Page 235
... volcanic and sub - volcanic rocks . The majority of the exposed rocks are pyroclastic flows of rhyolitic composition with basaltic lavas and gabbros present as minor components . The sub - volcanic rocks are syenite , bostonite , micro ...
... volcanic and sub - volcanic rocks . The majority of the exposed rocks are pyroclastic flows of rhyolitic composition with basaltic lavas and gabbros present as minor components . The sub - volcanic rocks are syenite , bostonite , micro ...
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