Water-resources Investigations Report

Water-resources Investigations Report
Title Water-resources Investigations Report PDF eBook
Author
Publisher
Pages 398
Release 2000
Genre Hydrology
ISBN

Download Water-resources Investigations Report Book in PDF, Epub and Kindle

Magnitude and Frequency Data for Historic Debris Flows in Grand Canyon National Park and Vicinity, Arizona

Magnitude and Frequency Data for Historic Debris Flows in Grand Canyon National Park and Vicinity, Arizona
Title Magnitude and Frequency Data for Historic Debris Flows in Grand Canyon National Park and Vicinity, Arizona PDF eBook
Author
Publisher
Pages 316
Release 1995
Genre Mass-wasting
ISBN

Download Magnitude and Frequency Data for Historic Debris Flows in Grand Canyon National Park and Vicinity, Arizona Book in PDF, Epub and Kindle

Paleobotany

Paleobotany
Title Paleobotany PDF eBook
Author Edith L. Taylor
Publisher Academic Press
Pages 1253
Release 2009-01-21
Genre Science
ISBN 008055783X

Download Paleobotany Book in PDF, Epub and Kindle

This book provides up-to-date coverage of fossil plants from Precambrian life to flowering plants, including fungi and algae. It begins with a discussion of geologic time, how organisms are preserved in the rock record, and how organisms are studied and interpreted and takes the student through all the relevant uses and interpretations of fossil plants. With new chapters on additional flowering plant families, paleoecology and the structure of ancient plant communities, fossil plants as proxy records for paleoclimate, new methodologies used in phylogenetic reconstruction and the addition of new fossil plant discoveries since 1993, this book provides the most comprehensive account of the geologic history and evolution of microbes, algae, fungi, and plants through time. Major revision of a 1993 classic reference Lavishly illustrated with 1,800 images and user friendly for use by paleobotanists, biologists, geologists and other related scientists Includes an expanded glossary with an extensive up-to-date bibliography and a comprehensive index Provides extensive coverage of fungi and other microbes, and major groups of land plants both living and extinct

Cradle of Life

Cradle of Life
Title Cradle of Life PDF eBook
Author J. William Schopf
Publisher Princeton University Press
Pages 404
Release 2001-04-09
Genre Science
ISBN 9780691088648

Download Cradle of Life Book in PDF, Epub and Kindle

One of the greatest mysteries in reconstructing the history of life on Earth has been the apparent absence of fossils dating back more than 550 million years. We have long known that fossils of sophisticated marine life-forms existed at the dawn of the Cambrian Period, but until recently scientists had found no traces of Precambrian fossils. The quest to find such traces began in earnest in the mid-1960s and culminated in one dramatic moment in 1993 when William Schopf identified fossilized microorganisms three and a half billion years old. This startling find opened up a vast period of time--some eighty-five percent of Earth's history--to new research and new ideas about life's beginnings. In this book, William Schopf, a pioneer of modern paleobiology, tells for the first time the exciting and fascinating story of the origins and earliest evolution of life and how that story has been unearthed. Gracefully blending his personal story of discovery with the basics needed to understand the astonishing science he describes, Schopf has produced an introduction to paleobiology for the interested reader as well as a primer for beginning students in the field. He considers such questions as how did primitive bacteria, pond scum, evolve into the complex life-forms found at the beginning of the Cambrian Period? How do scientists identify ancient microbes and what do these tiny creatures tell us about the environment of the early Earth? (And, in a related chapter, Schopf discusses his role in the controversy that swirls around recent claims of fossils in the famed meteorite from Mars.) Like all great teachers, Schopf teaches the non-specialist enough about his subject along the way that we can easily follow his descriptions of the geology, biology, and chemistry behind these discoveries. Anyone interested in the intriguing questions of the origins of life on Earth and how those origins have been discovered will find this story the best place to start.

Precambrian of the Southern Hemisphere

Precambrian of the Southern Hemisphere
Title Precambrian of the Southern Hemisphere PDF eBook
Author D.R. Hunter
Publisher Elsevier
Pages 890
Release 1981-01-01
Genre Science
ISBN 0080869017

Download Precambrian of the Southern Hemisphere Book in PDF, Epub and Kindle

Precambrian of the Southern Hemisphere

Sediment Delivery by Ungaged Tributaries of the Colorado River in Grand Canyon, U.S. Geological Survey, Water-Resources Investigations Report 00-4055, 2000

Sediment Delivery by Ungaged Tributaries of the Colorado River in Grand Canyon, U.S. Geological Survey, Water-Resources Investigations Report 00-4055, 2000
Title Sediment Delivery by Ungaged Tributaries of the Colorado River in Grand Canyon, U.S. Geological Survey, Water-Resources Investigations Report 00-4055, 2000 PDF eBook
Author
Publisher
Pages 80
Release 2000
Genre
ISBN

Download Sediment Delivery by Ungaged Tributaries of the Colorado River in Grand Canyon, U.S. Geological Survey, Water-Resources Investigations Report 00-4055, 2000 Book in PDF, Epub and Kindle

The Proterozoic Biosphere

The Proterozoic Biosphere
Title The Proterozoic Biosphere PDF eBook
Author J. William Schopf
Publisher Cambridge University Press
Pages 1408
Release 1992-06-26
Genre Science
ISBN 9780521366151

Download The Proterozoic Biosphere Book in PDF, Epub and Kindle

First published in 1992, The Proterozoic Biosphere was the first major study of the paleobiology of the Proterozoic Earth.