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A Trivial Process

James Lawrence Powell

in Four Revolutions in the Earth Sciences: From Heresy to Truth

Published in print:
2014
Published Online:
November 2015
ISBN:
9780231164481
eISBN:
9780231538459
Item type:
chapter
Publisher:
Columbia University Press
DOI:
10.7312/columbia/9780231164481.003.0021
Subject:
Environmental Science, Environmental Studies

This chapter takes a historical look at how the idea of meteorite impact originated. In the late 1950s, Eugene Merle Shoemaker, a precocious geology graduate of the California Institute of ... More


Dinosaur Killer

James Lawrence Powell

in Four Revolutions in the Earth Sciences: From Heresy to Truth

Published in print:
2014
Published Online:
November 2015
ISBN:
9780231164481
eISBN:
9780231538459
Item type:
chapter
Publisher:
Columbia University Press
DOI:
10.7312/columbia/9780231164481.003.0027
Subject:
Environmental Science, Environmental Studies

This chapter examines the theory that meteorite impact was responsible for the extinction of dinosaurs on Earth. The Cretaceous-Tertiary boundary, or K-T, is the point in geological time at which the ... More


Out with a Bang

James Lawrence Powell

in Four Revolutions in the Earth Sciences: From Heresy to Truth

Published in print:
2014
Published Online:
November 2015
ISBN:
9780231164481
eISBN:
9780231538459
Item type:
chapter
Publisher:
Columbia University Press
DOI:
10.7312/columbia/9780231164481.003.0028
Subject:
Environmental Science, Environmental Studies

This chapter examines how the impact skeptics reacted to Luis Alvarez's theory that the mass extinctions of the dinosaurs and seventy percent of all species on the planet at the Cretaceous-Tertiary ... More


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