Ice ages: solving the mystery
This book tells the exciting story of the ice ages--what they were like, why they occurred, and when the next one is due. The solution to the ice age mystery originated when the National Science Foundation organized the CLIMAP project to study changes in the earth's climate over the past 700,000 years. One of the goals was to produce a map of the earth during the last ice age. Scientists examined cores of sediment from the Indian Ocean bed and deciphered a continuous history for the past 500,000 years. Their work ultimately confirmed the theory that the earth's irregular orbital motions account for the bizarre climatic changes which bring on ice ages. This is a tale of scientific discovery and the colorful people who participated: Louis Agassiz, the young Swiss naturalist whose geological studies first convinced scientists that the earth has recently passed through an ice age; the Reverend William Buckland, an eccentric but respected Oxford professor who fought so hard against the ice-age theory before accepting it; James Croll, a Scots mechanic who educated himself as a scientist and first formulated the astronomic theory of ice ages; Milutin Milankovitch, the Serbian mathematician who gave the astronomic theory its firm quantitative foundation; and the many other astronomers, geochemists, geologists, paleontologists, and geophysicists who have been engaged for nearly a century and a half in the pressing search for a solution to the ice-age mystery.
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Louis Agassiz and the Glacial Theory
The Triumph of the Glacial Theory
Exploring the IceAge World
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Agassiz analyzed astronomical theory Atlantic axial tilt Broecker Brunhes Epoch Buckland calculations carbon Caribbean changes chronology climatic cycle climatic history colleagues convinced cooling trend correlated Croll's theory deep-sea cores deposits developed drift earth's orbit Emiliani Ericson estimate Europe evidence fluctuations forams fossil Geikie geologists George Kukla glacial theory glaciers global gravel Hays ice sheets ice-age Imbrie interglacial interglacial age investigators isotopic isotopic curve James Croll Koppen kovitch Lamont last ice age latitudes layers Little Ice Age loess Louis Agassiz Lyell magnetic reversals menardii Mesolella method Milankovitch theory Milutin Milankovitch Neuchatel North northern hemisphere occurred ocean Opdyke orbital eccentricity oxygen-isotope paleomagnetic past Penck and Bruckner planktonic Pleis Pleistocene Pleistocene climate Pleistocene ice polar postglacial precession predicted problem radiation curves radiocarbon dating reefs scientists sea floor sea level sediment sequence Shackleton southern species surface technique temperature tion tocene University variations Venetz Wiirm winter Zone