Petrogenesis and geochemistry of metabasaltic and metasedimentary enclaves in the Amitsoq gneisses, West Greenland

The oldest rocks recognized in the Greenland Archean are metamorphosed basic, ultra-basic, and sedimentary rocks enclosed in the ca. 3700 m.y. old Amitsoq gneisses of the Godthdb region, West Greenland. Specimens from enclaves from the area south and south-east of the town of Godthib have been analyzed for major elements and for a range of mino