Supracrustal rocks

The collective term supracrustal rocks is used in geology for a group of metamorphic rocks, the origin of which is still recognizable from volcanites that have flowed out on the earth's surface and / or sedimentary rocks deposited on the earth's surface . A more precise definition of the educational conditions is often no longer possible due to the metamorphosis. The term is mainly used for rock sequences of the Precambrian .

In contrast to this, rocks that were formed within the earth's crust are called infra- or intracrustal rocks. This includes the plutonites and sub-volcanic rocks .

literature

• Myron G. Best: Igneous and Metamorphic Petrology . Freeman, New York 1982. pp. 531-538. ISBN 0-7167-1335-7
• W. Bleeker: Early Earth . In: Earth System: History and Natural Variability , Vol. I, accessed January 9, 2014
• H. Huttenlocher, Paul Ramdohr : Mineral and deposit science . Göschen Collection, Volume 1014 / 1014a, p. 65, de Gruyter , Berlin 1965.