Download or read book Late Pliocene Pleistocene Evolution of the Little Pine Fault and Its Function on the Control of Sedimentation During Basin Formation written by Richard A. Lee and published by . This book was released on 2014 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: New stratigraphic and geomorphic data from the Santa Maria Basin, California, suggests that the major basin-bounding Little Pine fault system has been acting in a primarily reverse offset fashion since the late Pleistocene. A series of stratigraphic columns in the Plio-Pleistocene Paso Robles Formation measured along the Little Pine fault indicate that there was episodic uplift during the latest Pleistocene. A 20-40% increase in the percent composition of resistive, Franciscan Complex-derived cherts within active drainages indicate that uplift of the San Rafael Mountain front increased rapidly since the deposition of older sediments. The shape of stream profiles created along the Little Pine fault suggest ongoing uplift associated with the central and southeastern segments of the fault, with a lesser amount of uplift occurring further northwest along the Little Pine fault. A number of ridgeline profiles were also created which exhibit significant jumps in topography near, or just northeast of the Little Pine fault, suggesting that recent uplift is responsible. The ridgeline profiles also suggest an increased rate of uplift adjacent to the central and southeastern segments of the Little Pine fault zone, in agreement with the along-strike variations in uplift suggested by the stream profiles. Stream traces were also examined for deflections as they flowed across the Little Pine fault, but most show no significant lateral offset.
Download or read book The Pleistocene Boundary and the Beginning of the Quaternary written by John A. Van Couvering and published by Cambridge University Press. This book was released on 2004-12-16 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book documents the agreed geological reference point for the Pleistocene boundary, and its worldwide correlation.
Download or read book Tectonic Controls and Signatures in Sedimentary Successions written by Lynne E. Frostick and published by John Wiley & Sons. This book was released on 2009-04-13 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stratigraphers and sedimentologists who are presently describing and interpreting the infill of sedimentary basins are generally agreed that it is difficult to disentangle the signatures of tectonic processes from those of climate and eustatic sea level change in the resultant rock succession. Until better criteria are developed to distinguish between the roles played by the major variables, it is still most useful to document and interpret basin-fill architectures where we know, from independent evidence, that one of the main controls is likely to have been a major contributor. This book contains a collection of papers describing situations where the tectonic setting is fairly well established, and it can be assumed that at least the tectonic factor has contributed to the resultant signatures.
Download or read book List of U S Geological Survey Geologic and Water supply Reports and Maps for California written by and published by . This book was released on 1987 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of U S Geological Survey Geologic and Water supply Reports and Maps for California written by Geological Survey (U.S.) and published by . This book was released on 1987 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Late Pleistocene Regional Extension Rate Derived from Earthquake Geology of Late Quarternary Faults Across Great Basin Nevada Between 38 5 and 40 N Latitude written by Richard D. Koehler (III) and published by . This book was released on 2009 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Great Basin encompasses over two thirds of the Pacific/North American plate boundary and accommodates up to 25 percent of the relative plate motion by active faulting. Although the majority of the deformation within the Great Basin is concentrated along its margins, a small amount of geodetically measured strain is observed between the Central Nevada Seismic Belt and the Wasatch Front. In this area, comparison between short and long-term patterns of strain accumulation and release has been difficult due to slow deformation rates and insufficient paleoseismic data. Thus, in order to document the amount and timing of late Pleistocene displacements geologic studies were performed along ten rangefront faults distributed across US HWY 50. The faults include those bounding the Desatoya, Toiyabe, Monitor, Simpson Park, Toquima, Antelope, Fish Creek, Butte, Egan, and Schell Creek Ranges. The data include geologic maps of Quaternary deposits and fault traces, paleoseismic trenches, scarp diffusion analyses, and soil characteristics in displaced alluvial surfaces. The observations are combined with paleoseismic information from previous studies to estimate a net long-term extension rate and compared to geodetic measurements. The results provide an estimate of the amount of strain released by earthquakes (~1 mm/yr) across the interior of the Great Basin during the late Pleistocene and show within broad uncertainties that the long-term rate of strain release is similar to short-term strain accumulation over the same region. The agreement in extension rate estimates over different time scales implies that relatively slow extensional deformation has been operative in the Great Basin east of the Central Nevada Seismic Belt through the late Pleistocene. From east to west the ranges become progressively more northeast trending and crustal velocities bend to the northwest. The organization of late Pleistocene ruptures into left stepping strands that trend oblique to rangefronts and are roughly perpendicular to N60W extension may be the geomorphic expression of a component of right lateral shear within the interior of the Great Basin.
Download or read book The Gulf of Mexico Sedimentary Basin written by John W. Snedden and published by Cambridge University Press. This book was released on 2019-11-21 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive and richly illustrated overview of the Gulf of Mexico Basin, including its reservoirs, source rocks, tectonics and evolution.
Download or read book The Last 10 000 Years written by Paul S. Martin and published by University of Arizona Press. This book was released on 2022-01-04 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollen analysis offers an approach to understanding the Southwestern environment, its history, and in some respects its possible future. Dr. Paul S. Martin's study is an example of geochronology functioning as a strong interdisciplinary link among archaeologists, biogeographers, geologists, paleoclimatologists and ecologists.
Download or read book Cenozoic Basin Development of Coastal California written by Raymond V. Ingersoll and published by Prentice Hall. This book was released on 1987 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earth s Pre Pleistocene Glacial Record written by M. J. Hambrey and published by Cambridge University Press. This book was released on 1981-09-03 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compilation, made between late 1978 and early 1980 of data on tillites and tillite-like rocks of all ages and from all areas of the world.
Download or read book Strike slip Deformation Basin Formation and Sedimentation written by Kevin T. Biddle and published by American Society of Civil Engineers. This book was released on 1985 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume is organized into three sections entitled Overview, Extensional Settings and Contractional Settings together with a glossary of terms having to do with strike-slip deformation, basin formation and sedimentation.
Download or read book Late Pleistocene History of Northeastern New England and Adjacent Quebec written by Harold W. Borns and published by Geological Society of America. This book was released on 1985 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Kap Kobenhavn Formation Stratigraphy and Palaeobotany of a Plio Pleistocene Sequence in Peary Land North Greenland written by and published by Museum Tusculanum Press. This book was released on with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sedimentary Facies Tectonic Relations and Hydrocarbon Significance in Ridge Basin California written by Martin H. Link and published by . This book was released on 1987 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Climate and the Expansion of C4 Grasses on Sequence scale Cyclicity and Landscape Development During the Late Miocene to Pleistocene of West Texas written by Ryan S. Dhillon and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Neogene records a period of global climate change and terrestrial ecosystem evolution; however, little is known about whether these changes influenced sedimentary and soil forming processes. The late Miocene to Pleistocene Fort Hancock and Camp Rice Formations from two adjacent isolated basins, southeast Hueco Bolson and northwest Eagle Flat Draw, were analyzed to determine whether changing climate and concomitant C4 grass expansion influenced fluvial depositional style. Alluvial stacking-pattern analysis of two drill cores reveals sequence-scale trends in paleosol maturity, cycle thickness, and facies proportions. Stable isotope geochemistry of bulk paleosol samples and pedogenic carbonate suggest C4 expansion at 7.25 Ma and provide a pCO2 reconstruction of the late Miocene to Pleistocene. C4 onset coincides with a decreasing sedimentation rate, less frequent channel avulsion events, and an increase in paleosol maturity. Stratigraphic stacking-patterns parallel pCO2 concentration, suggesting that sedimentation and pedogenesis are influenced by third- to fourth-order global climate cycles.
Download or read book Pliocene and Pleistocene written by 1896- Maryland Geological Survey and published by Palala Press. This book was released on 2016-05-25 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Science written by John Michels (Journalist) and published by . This book was released on 1992 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1911-13 contain the Proceedings of the Helminothological Society of Washington, ISSN 0018-0120, 1st-15th meeting.
