Cenozoic Basin Development of Coastal California

Cenozoic Basin Development of Coastal California PDF Author: Raymond V. Ingersoll
Publisher: Prentice Hall
ISBN:
Category : Science
Languages : en
Pages : 520

Get Book Here

Book Description

Cenozoic Basin Development of Coastal California

Cenozoic Basin Development of Coastal California PDF Author: Raymond V. Ingersoll
Publisher: Prentice Hall
ISBN:
Category : Science
Languages : en
Pages : 520

Get Book Here

Book Description


Nearshore Marine Paleoclimatic Regions, Increasing Zoogeographic Provinciality, Molluscan Extinctions, and Paleoshorelines, California

Nearshore Marine Paleoclimatic Regions, Increasing Zoogeographic Provinciality, Molluscan Extinctions, and Paleoshorelines, California PDF Author: Clarence A. Hall
Publisher: Geological Society of America
ISBN: 9780813723570
Category : Science
Languages : en
Pages : 502

Get Book Here

Book Description
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.

Tectonics, Sedimentary Basins, and Provenance: A Celebration of the Career of William R. Dickinson

Tectonics, Sedimentary Basins, and Provenance: A Celebration of the Career of William R. Dickinson PDF Author: Raymond V. Ingersoll
Publisher: Geological Society of America
ISBN: 0813725402
Category : Science
Languages : en
Pages : 768

Get Book Here

Book Description
Through a remarkable combination of intellect, self-confidence, engaging humility, and prodigious output of published work, William R. Dickinson influenced and challenged three generations of sedimentary geologists, igneous petrologists, tectonicists, sandstone petrologists, archaeologists, and other geoscientists. A key figure in the plate-tectonic revolution of the 1960s and 1970s, he explained how the distribution of sediments on Earth's surface could be traced to tectonic processes, and is widely recognized as a founder of modern sedimentary basin analysis. This volume consists of 31 chapters related to Dickinson's research interests; many of the authors are his former students, their students, and their students' students, demonstrating his continuing profound influence. The papers in this volume are an impressive tribute to the depth and breadth of Bill Dickinson's contributions to the geosciences.

The Cenozoic Evolution of the San Joaquin Valley, California

The Cenozoic Evolution of the San Joaquin Valley, California PDF Author: J. Alan Bartow
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 48

Get Book Here

Book Description


U.S. Geological Survey Bulletin

U.S. Geological Survey Bulletin PDF Author: Colin F. Williams
Publisher:
ISBN:
Category : Argillite
Languages : en
Pages : 214

Get Book Here

Book Description
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.

U.S. Geological Survey Bulletin

U.S. Geological Survey Bulletin PDF Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 470

Get Book Here

Book Description


Evolution of Ridge Basin, Southern California

Evolution of Ridge Basin, Southern California PDF Author: John C. Crowell
Publisher: Geological Society of America
ISBN: 9780813723679
Category : Science
Languages : en
Pages : 276

Get Book Here

Book Description


Siliceous, Phosphatic and Clauconitic Sediments of the Tertiary and Mesozoic

Siliceous, Phosphatic and Clauconitic Sediments of the Tertiary and Mesozoic PDF Author: Akihito Iijima
Publisher: VSP
ISBN: 9789067641753
Category : Science
Languages : en
Pages : 260

Get Book Here

Book Description
This Proceedings volume contains 14 papers from the symposium ''Siliceous, Phosphatic and Glauconitic Sediments of the Tertiary and Mesozoic'', which was held during the 29th International Geological Congress, Kyoto, Japan, 24 August--3 September, 1992. The first part of this volume consists of papers dealing with Tertiary biosiliceous sediments of the Pacific Rim, starting in the northwest. The second part of the volume is composed of papers dealing with Tertiary and Mesozoic phosphatic rocks and phosphatebearing sequences, in particular of the eastern Pacific Rim and the Middle East. The articles serve to emphasize the similarities and differences between the Pacific Neogene successions and the Tethyan Mesozoic sequences of the Middle East.

Sedimentary Basins

Sedimentary Basins PDF Author: Gerhard Einsele
Publisher: Springer Science & Business Media
ISBN: 3662040298
Category : Science
Languages : en
Pages : 795

Get Book Here

Book Description
This completely revised and enlarged second edition provides an up-to-date overview of all major topics in sedimentary geology. It is unique in its quantitative approach to denudation-accumulation systems and basin fillings, including dynamic aspects. The relationship between tectonism and basin evolution as well as the concepts of sequence cycle and event stratigraphy in various depositional environments are extensively discussed. Numerous, often composite figures, a well-structured text, brief summaries in boxes, and several examples from all continents make the book an invaluable source of information for students, researchers and professors in academia as well as for professionals in the oil industry.

Paleomagnetic Rotations and Continental Deformation

Paleomagnetic Rotations and Continental Deformation PDF Author: Catherine Kissel
Publisher: Springer Science & Business Media
ISBN: 9400908695
Category : Science
Languages : en
Pages : 516

Get Book Here

Book Description
One of the most interesting results obtained in the last two decades in the study of crustal deformation has been the recognition that large regions of continental crust undergo rotations about vertical axis during deformation. Proof of such rotations has come through the paleomagnetic studies, which reveal rotations when paleomagnetic declinations within the deforming region arc compared with those found in coeval rocks in the stable regions outside the deforming zone. Such rotations were first described in Oregon then in the North American Cordilleras and in Southern California and were a surprise to everyone. Even in California which, as a result of oil exploration, was among the best geologically explored regions in the world, no one could claim to have predicted that these rotations would be found. Rotations have subsequently been found in other areas of recent continental tectonic activity, notably in the Basin and Range province, New Zealand, the Andes, Greece and Western Turkey, so that they appear as an important feature of continental deformation.