Nuvvuagittuq Greenstone Belt - Wikipedia
The Nuvvuagittuq Greenstone Belt (NGB; Inuktitut: [nuv.vu.a.git.tuq]) is a sequence of metamorphosed mafic to ultramafic volcanic and associated sedimentary rocks (a greenstone belt) located on the eastern shore of Hudson Bay, 40 km southeast of Inukjuak, Quebec.
The Oldest Rocks on Earth | Scientific American
2014年3月1日 · The Nuvvuagittuq greenstone belt doesn't look like a battlefield. It lies in peaceful, roadless isolation along the northeastern edge of Hudson Bay in Canada, more than 20 miles from...
Formation age and metamorphic history of the Nuvvuagittuq Greenstone Belt
2012年11月1日 · The Nuvvuagittuq Greenstone Belt (NGB) in Northern Quebec, Canada, is dominated by mafic and ultramafic rocks metamorphosed to at least upper amphibolite facies. Rare felsic intrusive rocks provide zircon ages of up to ∼3.8 Ga (David et al., 2009, Cates and Mojzsis, 2007) establishing the minimum formation age of the NGB as Eoarchean. Primary ...
Nuvvuagittuq greenstone belt | geological site, Quebec, Canada …
amphibolite volcanic deposits of the Nuvvuagittuq greenstone belt in Quebec, Canada. The second oldest rocks are the 4-billion-year-old Acasta granitic gneisses in northwestern Canada, and a single relict zircon grain dated to 4.2 billion years ago was found within these gneisses.
Nuvvuagittuq Greenstone Belt - SpringerLink
2023年1月25日 · The Nuvvuagittuq greenstone belt is ~10 km 2 volcano-sedimentary sequence located in Northeastern Canada. The belt is mostly composed of mafic metavolcanic rocks comprising chemical sedimentary rocks that are interpreted to have recorded traces of early life.
Nuvvuagittuq (Porpoise Cove) Greenstone Belt | SpringerLink
The Nuvvuagittuq greenstone belt is a Hadean /Eoarchean volcano-sedimentary sequence located on the Eastern shore of the Hudson Bay in northern Quebec.
Nuvvuagittuq (Porpoise Cove) Greenstone Belt | SpringerLink
2020年12月13日 · The Nuvvuagittuq greenstone belt is a Hadean/Eoarchean volcano-sedimentary sequence located on the Eastern shore of the Hudson Bay in northern Quebec. The belt’s main rock unit is a mafic meta-igneous cummingtonite-plagioclase-biotite-garnet-quartz amphibolite called the Ujarraluk unit.
Implications of the Nuvvuagittuq Greenstone Belt for the …
2011年4月18日 · Recent 142 Nd work raised the possibility that the dominant lithology of the belt formed at ∼4·28 Ga, which would make it the only known remnant of Hadean crust preserved on Earth.
Nuvvuagittuq Greenstone Belt - Wikiwand
The Nuvvuagittuq Greenstone Belt (NGB; Inuktitut: [nuv.vu.a.git.tuq]) is a sequence of metamorphosed mafic to ultramafic volcanic and associated sedimentary rocks (a greenstone belt) located on the eastern shore of Hudson Bay, 40 km southeast of Inukjuak, Quebec.
The Hadean to Eoarchean Nuvvuagittuq Greenstone Belt
With a likely age of 4.3 billion years old (O’Neil et al., 2008), the Nuvvuagittuq greenstone belt may represent the only known rocks formed within the Hadean eon. This remnant of ancient …
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