The Roadside Geology of Namibia |
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Page 58
... sills are basaltic sheets ; their magma mostly intruded parallel or in step and stair fashion along bedding planes of bedded sediments . Thick sills formed during the intrusion through inflation from originally thin sills , and ...
... sills are basaltic sheets ; their magma mostly intruded parallel or in step and stair fashion along bedding planes of bedded sediments . Thick sills formed during the intrusion through inflation from originally thin sills , and ...
Page 59
... sills and dykes intruded are part of the Dwyka and Ecca Groups of the Karoo Sequence . The lower sill has intrud- ed into Dwyka Formation sediments and has a thickness of 150 m , the up- per sill intruded into Ecca Formation shales and ...
... sills and dykes intruded are part of the Dwyka and Ecca Groups of the Karoo Sequence . The lower sill has intrud- ed into Dwyka Formation sediments and has a thickness of 150 m , the up- per sill intruded into Ecca Formation shales and ...
Page 179
... sills were fractured , faulted and subsequently intruded by dolerite dykes . The dolerite has a Jurassic age of ... sill has completely disintegrated to form well - rounded dolerite boulders . The road now follows a peneplain with little ...
... sills were fractured , faulted and subsequently intruded by dolerite dykes . The dolerite has a Jurassic age of ... sill has completely disintegrated to form well - rounded dolerite boulders . The road now follows a peneplain with little ...
Contents
Introduction | 1 |
Namibia from the Archaean to the Cenozoic | 9 |
An overview of the Namibian mineralogy | 23 |
Copyright | |
10 other sections not shown
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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 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