The Roadside Geology of Namibia |
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Page 66
... phonolites , which in- trude Erongorus tuffs at the northern edge of the complex . All rocks are under - saturated in silica having less than 5 % normative nepheline . A good , and possibly the thickest exposure of the basal basalts ...
... phonolites , which in- trude Erongorus tuffs at the northern edge of the complex . All rocks are under - saturated in silica having less than 5 % normative nepheline . A good , and possibly the thickest exposure of the basal basalts ...
Page 168
... Phonolites Weissrand Fm Kalahari Group Kalkrand Basalt Karoo Sequence Sediments Melrose Fm Naos Fm Auas Fm Hakos ... phonolites have been em- placed , and for the next 15 km a Mid - Tertiary volcanic field extends along the road . The ...
... Phonolites Weissrand Fm Kalahari Group Kalkrand Basalt Karoo Sequence Sediments Melrose Fm Naos Fm Auas Fm Hakos ... phonolites have been em- placed , and for the next 15 km a Mid - Tertiary volcanic field extends along the road . The ...
Page 169
... phonolites and trachytes , granitic mag- mas invaded the Complex during the Damaran and Kibaran Orogenies , some 500 and 1200 Ma ago respectively . An unusual example of this earlier magmatism is encoun- tered some 2 km N of Aris , to ...
... phonolites and trachytes , granitic mag- mas invaded the Complex during the Damaran and Kibaran Orogenies , some 500 and 1200 Ma ago respectively . An unusual example of this earlier magmatism is encoun- tered some 2 km N of Aris , to ...
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