Podrobnosti záznamu

Název
    Geochemical character and petrogenesis of Pan-African Amspoort suite of the Boundary Igneous Complex in the Kaoko Belt (NW Namibia)
Autor
    Erban, Vojtěch
    Janoušek, Vojtěch
    Jeřábek, Petr
    Konopásek, Jiří
    Tajčmanová, Lucie
    Ulrich, Stanislav
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Gondwana Research
Svazek/č.
    Roč. 18, č. 4
Strany
    20
Rok
    2010
Výraz tezauru
    Boundary Igneous Complex
    Damara Orogeny
    Kaoko Belt
    Namibia
    Pan-African
    whole-rock geochemistry
Klíčové slovo
    Amspoort
    Belt
    Boundary
    Character
    Complex
    Geochemical
    Igneous
    Kaoko
    Namibia
    NW
    Pan-African
    Petrogenesis
    Suite
Abstrakt (anglicky)
   Syn-tectonic granitoids of the Boundary Igneous Complex (Kaoko Belt, NW Namibia), intruded a NNW-SSE trending suture between the Neoproterozoic Coastal Terrane and Archaean-Neoproterozoic Congo Craton-derived foreland. Typical representatives of this igneous association are ca. 550 Ma old K-feldspar-phyric, Bt +- Cam granites-granodiorites of the Amspoort suite, with minor Cpx gabbro and rare two-Px dolerite bodies, the latter most likely coming from a CHUR-like mantle source. The rest of the suite is a product of HT anatexis of a heterogeneous lower crust, built by immature metapsammites prevailing over metabasite and intermediate metaigneous bodies, with an affinity to the Coastal Terrane. On the other hand, the rather primitive Sr-Nd isotopic compositions of the Amspoort suite apart from dolerites, rule out any major role for the Congo Craton-basement derived material, which is in sharp contrast to other, more southerly Pan-African granitoid complexes of the Kaoko Belt.
Přispěvatel
    UK Praha, Přírodovědecká fakulta
Kód přispěvatele
    UK, PřF
Zdrojový formát
    R
Datum importu
    8. 8. 2012