On some pre-Cambrian metadolerites from the central Ivigtut region SW Greenland

Erling Bondesen, Niels Henriksen

    Publikation: Bog/rapportBogForskningpeer review

    Abstrakt

    After their consolidation, the Ketildian gneisses were transversed by several generations of tensional, doleritic dykes - the Kuánitic dykes. During a later episode (the Sánerutian) these dykes were metamorphosed to varying degrees of alteration which increase in the described area from west to east. Along a specific metadolerite, which can be traced approx. 40 km, the metamorphic grade changes from greenschist to amphibolite facies. In the western parts static conditions and in the eastern parts dynamic conditions, prevailed during the alteration. Sánerutian shear zones in the eastern parts depict the dynamic conditions found here.
    OriginalsprogEngelsk
    ForlagGrønlands Geologiske Undersøgelse
    Antal sider43
    DOI
    StatusUdgivet - 24 maj 1965

    Publikationsserier

    NavnBulletin Grønlands Geologiske Undersøgelse
    ForlagGrønlands Geologiske Undersøgelse
    Vol/bind52
    ISSN (Trykt)0105-3507
    ISSN (Elektronisk)2597-2936

    Programområde

    • Programområde 4: Mineralske råstoffer

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