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Author : Robert Minssen Kleinpell
Publisher :
ISBN 13 :
Total Pages : 372 pages
Book Rating : 4.:/5 (318 download)
Download or read book The Miocene Stratigraphy of California Revisited written by Robert Minssen Kleinpell and published by . This book was released on 1980 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (319 download)
Download or read book U.S. Geological Survey Professional Paper written by and published by . This book was released on 2002 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roberta K. Smith
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.3/5 (121 download)
Download or read book Microdistribution of Foraminifera in a Single Bed of the Monterey Formation, Monterey County, California written by Roberta K. Smith and published by . This book was released on 1986 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: While several papers exist on the small scale spatial distribution of living foraminifera, almost no work exists on the small scale spatial distribution of fossils. The present study took 24 (5 ml) replicates 10 cm apart along one bed of the Monterey Formation in California.The mean density for all replicates is 6084.96 with a standard deviation of 8776.95. Both inspection and a cluster analysis of the data indicate replicates 20-24 have a much higher density and different rank order of abundance than replicates 1-19. The mean density for the total of all species in replicates 1-19 is 2387.47 with a standard deviation of 1175.58. For replicates 20-24 the mean density is 20135.40 with a standard deviation of 11181.40. The spatial variability is so great that four replicates (more than commonly taken) would only allow us to be 95% confident that we are within 50% of the true mean. Because age determination is based on presence of particular taxa rather than on densities, stratigraphic assignment would still be possible.The three species dominating the 1-19 group make up from 86% to 99% of the fauna. The three species dominating the 20-24 group make up from 77% to 85% of the fauna. Two of these are also dominant in the 1-19 group, but the most dominant species in the 20-24 group constitutes only
Author :
Publisher :
ISBN 13 :
Total Pages : 446 pages
Book Rating : 4.:/5 (319 download)
Download or read book U.S. Geological Survey Bulletin written by and published by . This book was released on 1983 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Samuel Y. Johnson
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (126 download)
Download or read book Sedimentology of the Conglomeratic Lower Member of the Lospe Formation (Lower Miocene), Santa Maria Basin, California written by Samuel Y. Johnson and published by . This book was released on 1994 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Eldridge M. Moores
Publisher : Geological Society of America
ISBN 13 : 0813723388
Total Pages : 507 pages
Book Rating : 4.8/5 (137 download)
Download or read book Classic Cordilleran Concepts written by Eldridge M. Moores and published by Geological Society of America. This book was released on 1999-01-01 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Judith Terry Smith
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (359 download)
Download or read book Cenozoic Giant Pectinids from California and the Tertiary Caribbean Province written by Judith Terry Smith and published by . This book was released on 1991 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thirty-nine taxa, many of them index species, are described and illustrated; their biostratigraphic and chronostratigraphic significance are related to tectnostratigraphic settings.
Author : Geological Survey (U.S.)
Publisher :
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.E/5 ( download)
Download or read book Geological Survey Professional Paper written by Geological Survey (U.S.) and published by . This book was released on 1991 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Publisher :
ISBN 13 :
Total Pages : 432 pages
Book Rating : 4.F/5 ( download)
Download or read book MMS. written by and published by . This book was released on 1992 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Colin F. Williams
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.3/5 (243 download)
Download or read book U.S. Geological Survey Bulletin written by Colin F. Williams and published by . This book was released on 1983 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Donald R. Prothero
Publisher : Columbia University Press
ISBN 13 : 0231127162
Total Pages : 558 pages
Book Rating : 4.2/5 (311 download)
Download or read book From Greenhouse to Icehouse written by Donald R. Prothero and published by Columbia University Press. This book was released on 2003 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: The marine Eocene-Oligocene transition of 34 million years ago was a critical turning point in Earth's climatic history, when the warm, high-diversity "greenhouse" world of the early Eocene ceded to the glacial, "icehouse" conditions of the early Oligocene. This book surveys the advances in stratigraphic and paleontological research and isotopic analysis made since 1989 in regard to marine deposits around the world. In particular, it summarizes the high-resolution details of the so-called doubthouse interval (roughly 45 to 34 million years ago), which is critical to testing climatic and evolutionary hypotheses about the Eocene deterioration. The authors' goals are to discuss the latest information concerning climatic and oceanographic change associated with this transition and to examine geographic and taxonomic patterns in biotic turnover that provide clues about where, when, and how fast these environmental changes happened. They address a range of topics, including the tectonic and paleogeographic setting of the Paleogene; specific issues related to the stratigraphy of shelf deposits; advances in recognizing and correlating boundary sections; trends in the expression of climate change; and patterns of faunal and floral turnover. In the process, they produce a valuable synthesis of patterns of change by latitude and environment.
Author : Clarence A. Hall
Publisher : Geological Society of America
ISBN 13 : 9780813723570
Total Pages : 502 pages
Book Rating : 4.7/5 (235 download)
Download or read book Nearshore Marine Paleoclimatic Regions, Increasing Zoogeographic Provinciality, Molluscan Extinctions, and Paleoshorelines, California written by Clarence A. Hall and published by Geological Society of America. This book was released on 2002 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 3000 middle and late Cenozoic nearshore marine molluscan taxa from western California are assigned to six time periods, spanning ~25 m.y. In this interdisciplinary study, western California is palinspastically restored for each of the time periods by backsliding and back-rotating large fault blocks or crustal units. Marine fossil assemblages are assigned to nearshore paleoclimatic regions or water masses within palinspastically restored California. In addition, this volume reveals positive feedback mechanisms between paleolatitudinal changes in sea-surface paleotemperature gradients and changes in the diversity of marine mollusks along the California coast through time; defines "equable" based effective temperatures; and analyzes extinction rates among macroinvertebrate marine taxa from coastal California and the possible causes of these extinctions. The late Paleogene to Neogene faunas reflect an increase in faunal diversity related to strengthened temperature gradients, greater extremes in sea-surface temperatures, reduction in temperateness, and the development of an embayed California coastline.
Author : Patricia Alison McCrory
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.3/5 (91 download)
Download or read book Neogene Geohistory Analysis of Santa Maria Basin, California, and Its Relationship to Transfer of Central California to the Pacific Plate written by Patricia Alison McCrory and published by . This book was released on 1995 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapters J and K are issued as a single volume and are not availabe separately.
Author : Ronald B. Cole
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.3/5 (91 download)
Download or read book Volcanic Rocks of the Santa Maria Province, California written by Ronald B. Cole and published by . This book was released on 1998 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.4/5 (2 download)
Download or read book Special Publication written by and published by . This book was released on 1992 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard G. Stanley
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.3/5 (91 download)
Download or read book Age of the Lospe Formation (Early Miocene) and Origin of the Santa Maria Basin, California written by Richard G. Stanley and published by . This book was released on 1996 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Margaret A. Keller
Publisher :
ISBN 13 :
Total Pages : 424 pages
Book Rating : 4.3/5 (91 download)
Download or read book Miocene and Oligocene Petroleum Reservoirs of the Santa Maria and Santa Barbara - Ventura Basins, California written by Margaret A. Keller and published by . This book was released on 1990 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
