- supracrustal
- supracrustˈal adjective(of rocks) on or near the surface, above the earth's crust• • •Main Entry: ↑supra-
Useful english dictionary. 2012.
supracrustal
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Supracrustal rock — 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 Isua greenstone belt contains the oldest, well preserved … Wikipedia
Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… … Wikipedia
Slave craton — which is one of the oldest dated rock units on Earth at 4.03 Ga. The crust of the Slave craton is thought to have amalgamated during a 2.69 Ga collision between a proto Slave western basement complex, known as the Central Slave Basement Complex,… … Wikipedia
Churchill craton — North America cratons and basement rock. The Churchill craton is colored in blue and labelled as the Churchill collision on this map. The Churchill craton is the northwest section of the Canadian Shield and stretches from southern Saskatchewan… … Wikipedia
Isua-Gneis — Der Isua Gneis ist eine Gesteinsformation des Archaikums im Kanadischen Schild nordöstlich von Nuuk am Rande des grönländischen Eisschildes. Die Gesteinsformation enthält mit dem Isua Grünsteingürtel etwa 3,8 Milliarden Jahre alte Gesteine, die… … Deutsch Wikipedia
Isua-Grünsteingürtel — Der Isua Gneis ist eine Gesteinsformation des Archaikums im Kanadischen Schild nordöstlich von Nuuk am Rande des grönländischen Eisschildes. Die Gesteinsformation enthält mit dem Isua Grünsteingürtel etwa 3,8 Milliarden Jahre alte Gesteine, die… … Deutsch Wikipedia
Akilia — Island is in West Greenland, about 22 kilometers south of Nuuk (Godthåb), at coord|63.933|N|51.667|W|type:isle. Akilia is the location of a rock formation that has been proposed to contain the oldest known sedimentary rocks on Earth, [McGregor,… … Wikipedia
Musgrave Block — The Musgrave Block is an east west trending belt of Proterozoic granulite gneiss basement rocks approximately 500km long. The Musgrave Block extends from western South Australia into Western Australia. The Musgrave Block is primarily exposed… … Wikipedia
Irumide Belt — The Irumide Belt is a Mesoproterozoic terrane of deformed basement and folded supracrustals, which occurs along the southern margin of an Archaean/Palaeoproterozoic unit called the Bangweulu Block in Zambia.The Irumide Belt comprises deformed… … Wikipedia
Jack Hills — The Jack Hills are located in the Narryer Gneiss Terrane of the Yilgarn Craton, Western Australia, and comprise an 80 km long northeast trending belt of folded and metamorphosed supracrustal rocks. [cite web |… … Wikipedia
