New geological data from the Malartic composite block of the Abitibi greenstone belt indicate that this volcanic pile is composed of four distinct mafic lithotectonic domains that are overlain by a calc-alkaline sequence. The mafic domains are thought to be examples of accreted Archean oceanic plateau material that were deformed during their collage state. The younger calc-alkalic sequence represents extension-related volcanism that erupted through the accreted and deformed plateau material. The relations described here may represent a common feature of Archean terranes.
|Number of pages||4|
|Publication status||Published - 1 May 1993|
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