Podrobnosti záznamu

    Deep lithospheric structure and hypogene metallogeny at convergent plate margins
Údaj o odpovědnosti
    Václav Hanuš, Jiří Vaněk, Aleš Špičák
Další názvy
    Deep Structure of the Earth and Concentration of Metals in the Lithosphere: A Geodynamic Approach (Variant.)
    Hanuš, Václav
    Špičák, Aleš
    Vaněk, Jiří
Zdrojový dokument - seriál
    Global tectonics and metallogeny
    Vol. 8, no. 1-4
    p. 141-149
    7 obr., 2 s. bibl.
    Zkr. název ser.: Glob. Tecton. Metallog.
Předmětová skupina
    hranice desek
    zlom aktivní
    zóna poruchová
Geografické jméno
    Amerika jižní
Klíčové slovo
Abstrakt (anglicky)
   The correlation between hypogene mineral deposits and seismically active fracture zones, cutting the continental lithosphere of convergent plate margins in South America, Indonesia and Mexico, was investigated. It was found that all large mineral deposits and most important mining districts in Andean South America between 18-34° S, Sumatra and Java, and central and southern Mexico are situated in the outcrops of deep rooted seismically active fracture zones induced and/or activated by the process of subduction of the Nazca, Indo-Australian and Cocos plates. We suppose that active fracture zones, penetrating the whole thickness of the continental lithosphere, effectuate a channeling of ore-bearing solutions liberated from the subducting oceanic lithosphere. The repeated seismic activity stimulates the long-term permanent re-opening of import paths for ore-bearing solutions that causes the accumulation of enormous amounts of metals in restricted domains of the earth crust.
   It appears that the fracturing of the continental lithosphere remains preserved in time and space, being re-activated under favourable conditions by a sequence of subduction cycles of different age
    Česká geologická služba
Kód přispěvatele
    ČGS (UNM)
Zdrojový formát
Datum vložení
    1. 10. 2007
Datum importu
    8. 8. 2012