The Roadside Geology of Namibia |
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Page 59
... dolerite sills occur in the pipes of the Brukkaros Volcanic Field and in some of the pipes of the Gibeon Kimberlite Field . This relationship suggests that dolerite sills intruded that far N but regionally became eroded . The sediments ...
... dolerite sills occur in the pipes of the Brukkaros Volcanic Field and in some of the pipes of the Gibeon Kimberlite Field . This relationship suggests that dolerite sills intruded that far N but regionally became eroded . The sediments ...
Page 179
... dolerite sills were fractured , faulted and subsequently intruded by dolerite dykes . The dolerite has a Jurassic age of about 180 Ma . Until Keetmanshoop is reached , numerous outcrops of Ecca Group sed- iments and Karoo dolerite occur ...
... dolerite sills were fractured , faulted and subsequently intruded by dolerite dykes . The dolerite has a Jurassic age of about 180 Ma . Until Keetmanshoop is reached , numerous outcrops of Ecca Group sed- iments and Karoo dolerite occur ...
Page 197
... dolerite . The town of Karasburg is underlain by migmatitic quartz - feldspar - biotite gneiss of the Namaqualand Complex . E of Karasburg , the road descends slightly and once more tra- verses into terrane underlain by sediments of the ...
... dolerite . The town of Karasburg is underlain by migmatitic quartz - feldspar - biotite gneiss of the Namaqualand Complex . E of Karasburg , the road descends slightly and once more tra- verses into terrane underlain by sediments of the ...
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