The Asteroid Impact Connection of Planetary Evolution: With Special Reference to Large Precambrian and Australian impacts (SpringerBriefs in Earth Sciences) - Softcover

Buch 7 von 65: SpringerBriefs in Earth Sciences

Glikson, Andrew Y.

 
9789400763272: The Asteroid Impact Connection of Planetary Evolution: With Special Reference to Large Precambrian and Australian impacts (SpringerBriefs in Earth Sciences)
Softcover
ISBN 10: 9400763271 ISBN 13: 9789400763272
Verlag: Springer, 2013

Inhaltsangabe

When in 1981 Louis and Walter Alvarez, the father and son team, unearthed a tell-tale Iridium-rich sedimentary horizon at the 65 million years-old Cretaceous-Tertiary boundary at Gubbio, Italy, their find heralded a paradigm shift in the study of terrestrial evolution. Since the 1980s the discovery and study of asteroid impact ejecta in the oldest well-preserved terrains of Western Australia and South Africa, by Don Lowe, Gary Byerly, Bruce Simonson, Scott Hassler, the author and others, and the documentation of new exposed and buried impact structures in several continents, have led to a resurgence of the idea of the catastrophism theory of Cuvier, previously largely supplanted by the uniformitarian theory of Hutton and Lyell. Several mass extinction of species events are known to have occurred in temporal proximity to large asteroid impacts, global volcanic eruptions and continental splitting. Likely links are observed between asteroid clusters and the 580 Ma acritarch radiation, end-Devonian extinction, end-Triassic extinction and end-Jurassic extinction. New discoveries of ~3.5 – 3.2 Ga-old impact fallout units in South Africa have led Don Lowe and Gary Byerly to propose a protracted prolongation of the Late Heavy Bombardment (~3.95-3.85 Ga) in the Earth-Moon system. Given the difficulty in identifying asteroid impact ejecta units and buried impact structures, it is likely new discoveries of impact signatures are in store, which would further profoundly alter models of terrestrial evolution.

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Über die Autorin bzw. den Autor

Andrew Yoram Glikson, an Earth and paleo-climate scientist at the Australian National University, studied geology at the University of Jerusalem and graduated at the University of Western Australia. He conducted geological surveys of the oldest geological formations in Australia, South Africa, India and Canada, underpinning the effects of large asteroid impacts, including their effects on the atmosphere and oceans and the mass extinction of species. Since 2005 he studied the relations between climate and human evolution.

Von der hinteren Coverseite

When in 1981 Louis and Walter Alvarez, the father and son team, unearthed a tell-tale Iridium-rich sedimentary horizon at the 65 million years-old Cretaceous-Tertiary boundary at Gubbio, Italy, their find heralded a paradigm shift in the study of terrestrial evolution. Since the 1980s the discovery and study of asteroid impact ejecta in the oldest well-preserved terrains of Western Australia and South Africa, by Don Lowe, Gary Byerly, Bruce Simonson, the author and others, and the documentation of new exposed and buried impact structures in several continents, led to a resurgence of the idea of the catastrophism theory of Cuvier, earlier largely supplanted by the uniformitarian theory of Hutton and Lyell. Several mass extinction of species events are known to have occurred in temporal proximity to large asteroid impacts, global volcanic eruptions and continental splitting. Likely links are observed between asteroid clusters and at 580 Ma, end-Devonian, end-Triassic and end-Jurassic extinctions. New discoveries of ~3.5 Ga-old impact fallout units in South Africa have led Lowe and Byerly to propose a protracted continuation of the Late Heavy Bombardment (~3.95-3.85 Ga) in the Earth-Moon system. Given the difficulty in identifying asteroid impact ejecta units and buried impact structures, it is likely new discoveries of impact signatures are in store, which would further profoundly alter models of terrestrial evolution.

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Verlag
Springer
Erscheinungsdatum
2013
Sprache
Englisch
ISBN 10 
9400763271
ISBN 13 
9789400763272
Einband
Taschenbuch
Anzahl der Seiten
164
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