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Hadean Earth

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Hadean Earth/ by T. Mark Harrison.
Author:	Harrison, T. Mark.
Description:	XVI, 291 p. 65 illus., 52 illus. in color.online resource. :
Contained By:	Springer Nature eBook
Subject:	Geochemistry. -
Online resource:	https://doi.org/10.1007/978-3-030-46687-9
ISBN:	9783030466879

Hadean Earth
Harrison, T. Mark.

Hadean Earth[electronic resource] /by T. Mark Harrison. - 1st ed. 2020. - XVI, 291 p. 65 illus., 52 illus. in color.online resource.

Why Hadean?- Thermal evolution models -- Radionuclide produced isotopic variations in mantle rocks -- The Lunar surface and Late Heavy Bombardment concept -- Models of continental growth and destruction -- Plate boundary interactions through geologic history -- Hadean Jack Hills zircon geochemistry -- Hadean zircons elsewhere in the Solar System -- Proposed sources of Hadean zircons -- Could the Hadean eon have been habitable?- Morpho- and chemo-fossil evidence for the appearance of life -- Collectanea.

This book consolidates the latest research on the Hadean Eon - the first 500 million years of Earth history - which has permitted hypotheses of early Earth evolution to be tested, including geophysical models that include the possibility of plate tectonic-like behavior. These new observations challenge the longstanding Hadean paradigm – based on no observational evidence - of a desiccated, lifeless, continent-free wasteland in which surface petrogenesis was largely due to extraterrestrial impacts. The eon was termed “Hadean” to reflect such a hellish environment. That view began to be challenged in 2001 as results of geochemical analyses of greater than 4 billion year old zircons from Australia emerged. These data were consistent with the zircons forming in a world much more similar to today than long thought and interpreted to indicate that sediment cycling was occurring in the presence of liquid water. This new view leaves open the possibility that life could have emerged shortly after Earth accretion. The epistemic limitations under which the old paradigm persisted are closely examined. The book is principally designed as a monograph but has the potential to be used as a text for advanced graduate courses on early Earth evolution.

ISBN: 9783030466879

Standard No.: 10.1007/978-3-030-46687-9doiSubjects--Topical Terms:

648291
Geochemistry.

LC Class. No.: QE514-516.5

Dewey Class. No.: 551.9

Hadean Earth
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