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Meteorite impacts as triggers to large igneous provinces

Adrian P. Jones
Meteorite impacts as triggers to large igneous provinces (in Large igneous provinces; origin and environmental consequences, Andrew D. Saunders (editor))
Elements (December 2005) 1 (5): 277-281

Abstract

A meteorite impacting on the surface of the Earth produces not only a crater but also, if the impactor is sufficiently large, high melt volumes. Computer simulations suggest that, in addition to shock-induced melting produced by impact, additional decompression melting of the hot target mantle beneath the crater can produce melt volumes comparable to those found in large igneous provinces (LIPs). The coincidence between the expected frequency of such impact events combined with the similarity in magma volumes of LIPs suggests that large meteorite impacts may be capable of triggering LIPs and mantle hotspots from a point source which is subsequently buried. Can the impact model explain any LIP? What are the distinctive macroscopic criteria predicted from an impact model, and how may they be recognised or rejected in the geological record of the Earth?


ISSN: 1811-5209
Serial Title: Elements
Serial Volume: 1
Serial Issue: 5
Title: Meteorite impacts as triggers to large igneous provinces
Title: Large igneous provinces; origin and environmental consequences
Author(s): Jones, Adrian P.
Author(s): Saunders, Andrew D.editor
Affiliation: University College London, Department of Geological Sciences, London, United Kingdom
Affiliation: University of Leicester, Department of Geology, Leicester, United Kingdom
Pages: 277-281
Published: 200512
Text Language: English
Publisher: Mineralogical Society of America and Mineralogical Society of Great Britain and Ireland and Mineralogical Association of Canada and Geochemical Society and Clay Minerals Society, International
References: 24
Accession Number: 2006-049314
Categories: Igneous and metamorphic petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. geol. sketch map, sect.
S10°00'00" - N05°00'00", E153°00'00" - E173°00'00"
Country of Publication: International
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute.
Update Code: 200614
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