Read e-book online An Introduction to Fossils and Minerals: Seeking Clues to PDF

By Jon Erickson

ISBN-10: 0816042365

ISBN-13: 9780816042364

ISBN-10: 143810961X

ISBN-13: 9781438109619

The research of fossils, minerals, and gemstones has performed the most important roles in expanding our wisdom in regards to the Earth, the adjustments the planet has undergone, and the species that experience inhabited it. This quantity introduces the interesting disciplines of geology, paleontology, and mineralogy, and the way they display secrets and techniques of the Earth's background. insurance contains: a scientific therapy of Earth historical past, rock kinds, marine fossils, terrestrial fossils, crystals, gem stones, and priceless metals that supply insights into Earth's personality; the most up-tp-date facts to be had on such themes as worldwide tectonics and faunal extinctions, together with a wealth of knowledge in regards to the death of dinosaurs; new applied sciences in detecting and maintaining rocks and minerals; and the results of abrasion and weather alterations.

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Additional info for An Introduction to Fossils and Minerals: Seeking Clues to the Earth's Past (Living Earth)

Example text

Not until the Renaissance period and the rebirth of science did people pursue alternate explanations for the existence of fossils that were based on scientific principles. By the 1700s, most scientists began to accept fossils as the remains of organisms because they closely resembled living things rather than merely inorganic substances such as concretions or nodules in rock. When placed in their proper order, fossils pieced together a nearly complete historical account of life on Earth, showing clear evidence for the evolution and extinction of species.

The pronounced unequal lengths of the two periods acknowledge a unique sequence of ice ages during the Pleistocene epoch. The first is the Paleogene period, from about 65 to about 26 million years ago, which includes the Paleocene, Eocene, and Oligocene epochs. The second is the Neogene period, from about 26 million years ago to the present, which includes the Miocene, Pliocene, Pleistocene, and Holocene epochs. ” The Cenozoic was a time of constant change, as all species had to adapt to a wide range of living conditions.

Preferably a type section is selected in an area where both the top and bottom of the formation are exposed.

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An Introduction to Fossils and Minerals: Seeking Clues to the Earth's Past (Living Earth) by Jon Erickson


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