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  • 1
    GFZ publications
    GFZ publications
    Geochemie und Geochronologie des Erongo-Komplexes, Namibia (2005)
    Potsdam : GeoForschungsZentrum
    Associated volumes
    Details Availability
    Call number: 21/STR 05/02
    In: Scientific Technical Report STR
    Type of Medium: GFZ publications
    Pages: VIII, 99, LXXVI S. , Ill., graph. Darst.
    Series Statement: Scientific Technical Report STR 05/02
    URL: http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:8662/component/escidoc:2585926/0502.pdf
    URL: http://doi.org/10.2312/GFZ.b103-050283
    URL: http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:kobv:b103-050283
    Classification:
    Geochemistry
    Note: Potsdam, Univ., Diss., 2003
    Location: Reading room
    Branch Library: GFZ Library
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  • 2
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    Geochemie und Geochronologie des Erongo-Komplexes, Namibia (2010)
    GFZ, Helmholtz-Zentrum
    Details
    Publication Date: 2021-03-29
    Description: The Erongo complex is the largest of the Cretaceous igneous complexes in the Damaraland, Southern Etendeka Province, Namibia. Erongo is made up of a series of mainly silicic volcanic and intrusive units, like many of the Damaraland complexes, but it is unique by virtue of its size and well-preserved igneous sequence silicic magmas as well as tholeiitic and alkaline basalts.The goals of this study were to determine the ages and petrogenetic relationships of the silicic and basic units in the Erongo complex, and to contribute to understanding the magmatic evolution of the Damaraland province. As part of this investigation, Os isotope compositions were determined on basic rocks from the complex, and this is the first study of Os isotopes in the Etendeka Province. The Erongo is built up on a sequence of tholeiitic basaltic lavas which are compositionally equivalent to the Southern Etendeka flood basalts (Tafelberg type) and probably represent erosional remnants of these (see below). The felsic volcanic units at Erongo include two types of rhyodacites and one rhyolite. The most voluminous of these is the Ombu rhyodacite, which has a thickness of up to 500 m and makes up most of the topographic expression of the complex. The Ombu rhyodacite rests directly on the basal tholeiites in the southern and eastern part of the complex, but to the north and west, a second rhyodacite occurs below it, the Erongorus rhyodacite ...
    Description: thesis
    Keywords: 551 ; VBN 500 ; VER 300 ; VAC 000 ; VKB 111 ; VKB 124 ; VBO 000 ; VJJ 000 ; Geochronologie einzelner Regionen im allgemeinen ; Botswana {Geologie} ; Magmatismus {Geologie} ; Granitische Gesteine {Petrologie} ; Basaltische Vulkanite {Petrologie} ; Isotopengeologie ; Spezielle Geochemie
    Language: German
    Type: monograph , publishedVersion
    Format: application/pdf
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