The Roadside Geology of Namibia |
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Page 54
... surface . However , during Cretaceous time about 75 Ma ago , carbonatite - rich magma intruded the basement rocks and uplifted all the overlying Nama and Karoo beds ( Kurzlaukis 1994 ) . This uplift caused radial fissuring of the large ...
... surface . However , during Cretaceous time about 75 Ma ago , carbonatite - rich magma intruded the basement rocks and uplifted all the overlying Nama and Karoo beds ( Kurzlaukis 1994 ) . This uplift caused radial fissuring of the large ...
Page 78
... surface of the meteorite are the re- sult of melting of the outer surface during the passage through the Earth's atmosphere . Minor oxidation has subsequently occurred on the surface , and is responsible for the green stains of ...
... surface of the meteorite are the re- sult of melting of the outer surface during the passage through the Earth's atmosphere . Minor oxidation has subsequently occurred on the surface , and is responsible for the green stains of ...
Page 150
... surface becomes very flat and is characterised by calcretisation . A lookout - point 7 km from the turn - off provides a nice view of Kuiseb schist hills and the desert plain with trees marking otherwise invisible small ephemeral river ...
... surface becomes very flat and is characterised by calcretisation . A lookout - point 7 km from the turn - off provides a nice view of Kuiseb schist hills and the desert plain with trees marking otherwise invisible small ephemeral river ...
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