Episodic continental growth and supercontinents: a mantle avalanche connection?

Details Episodic continental growth and supercontinents: a mantle avalanche connection? Episodic continental growth and supercontinents: a mantle avalanche connection?

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998e%26psl.163...97c&link_type=abstract

Earth and Planetary Science Letters, Volume 163, Issue 1-4, p. 97-108.

Astronomy and Astrophysics

Astrophysics

85

Scientific paper

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.

Affiliated with

Also associated with

No associations

Rating

Episodic continental growth and supercontinents: a mantle avalanche connection? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Episodic continental growth and supercontinents: a mantle avalanche connection?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Episodic continental growth and supercontinents: a mantle avalanche connection? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1075335