New Evidence For The Age Of The South Mountain Local Fauna Ventura County California PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download New Evidence For The Age Of The South Mountain Local Fauna Ventura County California PDF full book. Access full book title New Evidence For The Age Of The South Mountain Local Fauna Ventura County California.
Author | : Mark A. Mason |
Publisher | : |
Total Pages | : 9 |
Release | : 1989 |
Genre | : Mammals, Fossil |
ISBN | : |
Download New Evidence for the Age of the South Mountain Local Fauna, Ventura County, California Book in PDF, ePub and Kindle
Author | : Michael O. Woodburne |
Publisher | : Columbia University Press |
Total Pages | : 413 |
Release | : 2004-04-21 |
Genre | : Science |
ISBN | : 0231503784 |
Download Late Cretaceous and Cenozoic Mammals of North America Book in PDF, ePub and Kindle
This book places into modern context the information by which North American mammalian paleontologists recognize, divide, calibrate, and discuss intervals of mammalian evolution known as North American Land Mammal Ages. It incorporates new information on the systematic biology of the fossil record and utilizes the many recent advances in geochronologic methods and their results. The book describes the increasingly highly resolved stratigraphy into which all available temporally significant data and applications are integrated. Extensive temporal coverage includes the Lancian part of the Late Cretaceous, and geographical coverage includes information from Mexico, an integral part of the North American fauna, past and present.
Author | : |
Publisher | : |
Total Pages | : 444 |
Release | : 1983 |
Genre | : Geology |
ISBN | : |
Download U.S. Geological Survey Bulletin Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 560 |
Release | : 1957 |
Genre | : Natural history |
ISBN | : |
Download Contributions in Science Book in PDF, ePub and Kindle
Author | : Richard G. Stanley |
Publisher | : |
Total Pages | : 96 |
Release | : 1996 |
Genre | : Geology |
ISBN | : |
Download Age of the Lospe Formation (Early Miocene) and Origin of the Santa Maria Basin, California Book in PDF, ePub and Kindle
Author | : Colin F. Williams |
Publisher | : |
Total Pages | : 214 |
Release | : 1983 |
Genre | : Argillite |
ISBN | : |
Download U.S. Geological Survey Bulletin Book in PDF, ePub and Kindle
Phosphatic concretions occur within diatomite in the upper part of the Miocene Monterey Formation near Lompoc, Calif. Absence of disruption of fine laminar bedding in the associated sediment by the concretions shows that they formed after complete compaction of the enclosing sediment.The concretions exhibit a strongly concentric color, chemical, and mineralogic zonation. Many of them are composed of a nucleus in which vivianite is the dominant mineral. Amorphous ferric phosphate, mitridatite, and francolite are the dominant phosphatic phases in successive layers toward the surface of the concretions. Cd and As contents increase tenfold from the nucleus outward, reaching a maximum of 2,000 ppm, whereas Ni content, with a maximum of 720 ppm, and Co content show the opposite trend. This mineralogy and elemental composition favor accretion under conditions of continuously increasing Eh and pH, during uplift into the fresh-ground-water zone of the terrestrial environment. Shale-normalized rare-earth-element patterns, however, suggest a marine source for the elements biogenic debris consisting of opal-A, organic matter, and carbonates of the enclosing sediment.
Author | : Jeffrey L. Howard |
Publisher | : |
Total Pages | : 64 |
Release | : 1995 |
Genre | : Argillite |
ISBN | : |
Download Conglomerates of the Upper Middle Eocene to Lower Miocene Sespe Formation Along the Santa Ynez Fault Book in PDF, ePub and Kindle
Author | : Patrick L. Abbott |
Publisher | : Pacific Section Society of Economic Paleontologists & Mineralogists |
Total Pages | : 244 |
Release | : 1991 |
Genre | : Science |
ISBN | : |
Download Eocene Geologic History Book in PDF, ePub and Kindle
Author | : Mark Alan Mason |
Publisher | : |
Total Pages | : 550 |
Release | : 1988 |
Genre | : |
ISBN | : |
Download Mammalian Paleontology and Stratigraphy of the Early to Middle Tertiary Sespe and Titus Canyon Formations, Southern California Book in PDF, ePub and Kindle
Author | : A. Eugene Fritsche |
Publisher | : |
Total Pages | : 112 |
Release | : 1994 |
Genre | : Science |
ISBN | : |
Download Sedimentology and Paleontology of Eocene Rocks in the Sespe Creek Area, Ventura County, California Book in PDF, ePub and Kindle