EPISODIC CONTINENTAL GROWTH AND SUPERCONTINENTS: A MANTLE AVALANCHE CONNECTION?

dc.contributor.author	Condie K.C.
dc.date.accessioned	2020-12-29T10:10:04Z
dc.date.available	2020-12-29T10:10:04Z
dc.date.issued	1998
dc.identifier	https://elibrary.ru/item.asp?id=88404
dc.identifier.citation	Earth and Planetary Science Letters, 1998, , 1, 97-108
dc.identifier.issn	0012-821X
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/21662
dc.description.abstract	Episodic growth of continental crust and supercontinents at 2.7, 1.9, and 1.2 Ga may be caused by superevents in the mantle as descending slabs pile up at the 660-km seismic discontinuity and then catastrophically sink into the lower mantle. Superevents, in turn, may comprise three or four events, each of 50-80 My duration, and each of which may reflect slab avalanches at different locations and times along the 660-km discontinuity. Superplume events in the late Paleozoic and Mid-Cretaceous may have been caused by minor slab avalanches as the 660-km discontinuity became more permeable to the passage of slabs with time. The total duration of a superevent cycle decreases with time reflecting the cooling of the mantle.
dc.subject	CONTINENTAL CRUST
dc.subject	MANTLE
dc.subject	PLATE TECTONICS
dc.subject	MODELS
dc.subject	SLABS
dc.title	EPISODIC CONTINENTAL GROWTH AND SUPERCONTINENTS: A MANTLE AVALANCHE CONNECTION?
dc.type	Статья

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