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- Q7644685 subject Q7163795.
- Q7644685 subject Q8811676.
- Q7644685 abstract "Supracrustal rocks are rocks that were deposited on the existing basement rocks of the crust, hence the name. They may be further metamorphosed from both sedimentary and volcanic rocks.The oldest minerals on Earth are detrital zircon grains from the Yilgarn Craton in the Mesoarchaean (3.2–2.8 Ga) Jack Hills, Western Australia dated to up to 4.4 Ga, meaning that granitic continental crust and probably supracrustal rocks formed during the Hadean, within 200 million years of Earth accretion. Most Hadean rocks were probably recycled into the mantle before the end of the eon, however, and such pre-4.0 Ga mineral inclusions, the only traces from the earliest rock formation on Earth, are rare.The Acasta orthogneisses of the Slave Craton, Canada, are regarded to be the oldest rocks on Earth, dated to 4.06 Ga, include protoliths such as TTGs, amphibolite, gabbro, granite, and diorite. It is possible that such early Hadean TTGs were a source of phosphorus for the first oceans and therefore contributed nutrients to the first abiogenic steps of life on Earth.No Hadean-aged zircon grains have been identified in the Nuvvuagittuq Supracrustal Belt in northern Quebec, but amphibolites have been dated to 4.28 Ga while 3.75 Ga-old banded iron formations indicate the minimum age of the belt. The Napier Mountains in Antarctica are of similar age.The Isua greenstone belt contains the oldest, well-preserved, supracrustals, dated at 3.8–3.7 Ga.".
- Q7644685 wikiPageExternalLink papineau.pdf.
- Q7644685 wikiPageWikiLink Q104460.
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- Q7644685 wikiPageWikiLink Q3206.
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- Q7644685 wikiPageWikiLink Q577.
- Q7644685 wikiPageWikiLink Q607992.
- Q7644685 wikiPageWikiLink Q674.
- Q7644685 wikiPageWikiLink Q7163795.
- Q7644685 wikiPageWikiLink Q76034.
- Q7644685 wikiPageWikiLink Q7946.
- Q7644685 wikiPageWikiLink Q8053599.
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- Q7644685 wikiPageWikiLink Q82480.
- Q7644685 wikiPageWikiLink Q858571.
- Q7644685 wikiPageWikiLink Q8811676.
- Q7644685 comment "Supracrustal rocks are rocks that were deposited on the existing basement rocks of the crust, hence the name. They may be further metamorphosed from both sedimentary and volcanic rocks.The oldest minerals on Earth are detrital zircon grains from the Yilgarn Craton in the Mesoarchaean (3.2–2.8 Ga) Jack Hills, Western Australia dated to up to 4.4 Ga, meaning that granitic continental crust and probably supracrustal rocks formed during the Hadean, within 200 million years of Earth accretion.".
- Q7644685 label "Supracrustal rock".