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What is stratigraphy dating

The selections and comments here are not a complete exposition of the works of the authors mentioned; rather they were chosen to illustrate and exemplify changing perspectives over time.In Europe the issue of the age of the Earth was not a serious one prior to the rise of science; the history of the Earth was assumed to be accounted for in Genesis.

By the early 1800's it was generally accepted that the Earth had a long history. The uniformatarians (Hutton 1788, Lyell 1830) pictured the Earth as being indefinitely old.Ussher accepted the Biblical account at face value, relying on the Biblical genealogies and on extant historical records.He implicitly assumed that the world was created much as it is now.Many authors choose to present the history of a complex subject by breaking it up into major threads and following the history of each thread separately.I have chosen instead to provide a chronology of significant works and their authors with a view to providing a sense of how perspectives on Geology changed over time.If, in the year AD 1600, you had asked an educated European how old the planet Earth was and to recount its history he would have said that it was about 6000 years old and that its ancient history was given by the biblical account in Genesis.If you asked the same question of an educated European in AD 1900 you would have received a quite different answer.There were various attempts to estimate the Earth's age, working back from sedimentation rates and other geophysical phenomena.The attempts produced estimates from about 100 million years up to several billion years. The first is that the geological history was still being reconstructed.The catastrophists (Cuvier 1812, de Beaumont 1852, Buckland 1836) accepted that the Earth was old; they disagreed with the kind of change and the rate of change that had occurred over that long history.There was no single estimate of the Earth's age in the mid 1800's and no good way to arrive at one.

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  1. Earth sciences - Paleontology and stratigraphy During the 17th century the guiding principles of paleontology and historical geology began to emerge in the work of a.

  2. Our understanding of the shape and pattern of the history of life depends on the accuracy of fossils and dating methods. Some critics, particularly.

  3. Contents. Introduction; Changing Estimates of the Age of the Earth; Chronology of Writings; History of Radiometric Dating; References; Acknowledgements.

  4. Dating techniques are procedures used by scientists to determine the age of an object or a series of events. The two main types of dating methods are relative and.

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