Download or read book Trace element Deposition in the Cariaco Basin Venezuela Shelf Under Sulfate reducing Conditions written by David Z. Piper and published by . This book was released on 2002 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trace element Deposition in the Cariaco Basin Venezuela Shelf Under Sulfate reducing Conditions written by David Z. Piper and published by . This book was released on 2002 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Geological Survey Professional Paper written by and published by . This book was released on 1984 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Cycle of Cosmic Catastrophes written by Richard Firestone and published by Simon and Schuster. This book was released on 2006-06-05 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific proof validating the legends and myths of ancient floods, fires, and weather extremes • Presents scientific evidence revealing the cause of the end of the last ice age and the cycles of geological events and species extinctions that followed • Connects physical data to the dramatic earth changes recounted in oral traditions around the world • Describes the impending danger from a continuing cycle of catastrophes and extinctions There are a number of puzzling mysteries in the history of Earth that have yet to be satisfactorily explained by mainstream science: the extinction of the dinosaurs, the vanishing of ancient Indian tribes, the formation of the mysterious Carolina Bays, the disappearance of the mammoths, the sudden ending of the last Ice Age, and the cause of huge underwater landslides that sent massive tsunamis racing across the oceans millennia ago. Eyewitness accounts of these events are chronicled in rich oral traditions handed down through generations of native peoples. The authors’ recent scientific discoveries link all these events to a single cause. In The Cycle of Cosmic Catastrophes Richard Firestone, Allen West, and Simon Warwick-Smith present scientific evidence about a series of prehistoric cosmic events that explains why the last Ice Age ended so abruptly. Their findings validate the ubiquitous legends and myths of floods, fires, and weather extremes passed down by our ancestors and show how these legendary events relate to each other. Their findings also support the idea that we are entering a thousand-year cycle of increasing danger and possibly a new cycle of extinctions.

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 2003 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vanadium Isotopes written by Sune G. Nielsen and published by Cambridge University Press. This book was released on 2021-01-28 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vanadium isotope ratios (51V/50V) have potential to provide information about changes in past ocean oxygen contents. In particular, V isotopes may find utility in tracing variations at non-zero oxygen concentrations because the redox couple that controls V elemental and isotopic abundances in seawater (vanadate-vanadyl) appears to operate around 10M O2. This characteristic sets V isotopes apart from many other metal isotope redox proxies that require more reducing conditions to register significant changes in their isotope budgets. The oxygen abundance sensitivity range of V isotopes suggests that this paleoproxy could be particularly useful in tracing marine oxygenation changes throughout the Phanerozoic and potentially beyond.

Download or read book New Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 2003 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Publications of the U S Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 2002 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Publications of the U S Geological Survey written by and published by . This book was released on 2003 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reservoir Formation Conditions and Enrichment Mechanisms of Shale Oil and Gas written by Kun Zhang and published by Frontiers Media SA. This book was released on 2023-05-15 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Deposition of Organic carbon rich Sediments written by Nicholas Bennett Harris and published by SEPM Soc for Sed Geology. This book was released on 2005 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Depositional models for organic-carbon-rich sediments have been the subjects of both great interest and great controversy for many years. These sediments serve as the ultimate source of virtually all oil and gas. They also represent the interface between biological and geological processes and provide critical evidence for the state of the atmosphere and oceans. Yet despite their importance and decades of research, the origin of these sediments remains the source of vigorous disagreement. The twelve papers in this volume represent the cutting edge of research in this topic. They explore the origin of organic-carbon-rich sediments through a variety of techniques, including sedimentology, geochemistry, paleontology and computer modeling. All papers take multidisciplinary approaches to the topic, and together, they demonstrate the complex interconnected processes that trigger the deposition of organic carbon. This book will appeal to geoscientists in many disciplines, including explorers for petroleum who need models for source rock deposition, organic and inorganic geochemists who study processes in water and sediment, sedimentologists who interpret ancient deposition environments, and climatologists and oceanographers who reconstruct the behavior of the ancient atmosphere and oceans.

Download or read book Transactions written by Gulf Coast Association of Geological Societies and published by . This book was released on 2009 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Survey Professional Paper written by Geological Survey (U.S.) and published by . This book was released on 2002 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Pyrite Trace Element Paleo Ocean Chemistry Proxy written by Daniel D. Gregory and published by Cambridge University Press. This book was released on 2020-12-24 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of the trace element content of sedimentary pyrite as a proxy for the trace element composition of past oceans has recently emerged. The pyrite proxy has several potential advantages over bulk sample analysis: preservation through metamorphism; little dilution during analysis (samples are ablated not dissolved, allowing for the less abundant elements commonly held in the sulfide fraction to be investigated as proxies); accurate measurement of several elements simultaneously; the ability to screen sediments for hydrothermal overprint; and the technique can give information regarding trace element availably at multiple stages of diagenesis. Because of these multiple strengths, the pyrite trace element proxy is a valuable potential addition to the paleo-ocean chemistry tool kit.

Download or read book Trace Element Deposition in the Cariaco Basin Etc U S Geological Survey Professional Paper 1670 2002 written by and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Urumaco and Venezuelan Paleontology written by Marcelo R. Sánchez-Villagra and published by Indiana University Press. This book was released on 2010-07-16 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Urumaco and Venezuelan Paleontology offers a synthesis of the paleontological record of Venezuela, including new discoveries on stratigraphy, paleobotany, fossil invertebrates, and vertebrates. Besides providing a critical summary of the record of decapods, fishes, crocodiles, turtles, rodents, armadillos, and ungulates, several chapters introduce new information on the distribution and paleobiology of groups not previously studied in this part of the world. Given its position in the northern neotropics, close to the Panamanian land bridge, Venezuela is a key location for understanding faunal exchanges between the Americas in the recent geological past. The book reviews the recent paleobotanical and vertebrate fossil record of the region, provides an understanding of Pleistocene climatic change and biogeography for the last few thousand years, and integrates new information with summaries of Spanish language works on Venezuelan geology and paleontology.

Download or read book Proxies in Late Cenozoic Paleoceanography written by C. Hillaire-Marcel and published by Elsevier. This book was released on 2007-05-25 with total page 863 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume is the first in a series of two books dedicated to the paleoceanography of the Late Cenozoic ocean. The need for an updated synthesis on paleoceanographic science is urgent, owing to the huge and very diversified progress made in this domain during the last decade. In addition, no comprehensive monography still exists in this domain. This is quite incomprehensible in view of the contribution of paleoceanographic research to our present understanding of the dynamics of the climate-ocean system. The focus on the Late Cenozoic ocean responds to two constraints. Firstly, most quantitative methods, notably those based on micropaleontological approaches, cannot be used back in time beyond a few million years at most. Secondly, the last few million years, with their strong climate oscillations, show specific high frequency changes of the ocean with a relatively reduced influcence of tectonics. The first volume addresses quantitative methodologies to reconstruct the dynamics of the ocean andthe second, major aspects of the ocean system (thermohaline circulation, carbon cycle, productivity, sea level etc.) and will also present regional synthesis about the paleoceanography of major the oceanic basins. In both cases, the focus is the "open ocean leaving aside nearshore processes that depend too much onlocal conditions. In this first volume, we have gathered up-to-date methodologies for the measurement and quantitative interpretation of tracers and proxies in deep sea sediments that allow reconstruction of a few key past-properties of the ocean( temperature, salinity, sea-ice cover, seasonal gradients, pH, ventilation, oceanic currents, thermohaline circulation, and paleoproductivity). Chapters encompass physical methods (conventional grain-size studies, tomodensitometry, magnetic and mineralogical properties), most current biological proxies (planktic and benthic foraminifers, deep sea corals, diatoms, coccoliths, dinocysts and biomarkers) and key geochemical tracers (trace elements, stable isotopes, radiogenic isotopes, and U-series). Contributors to the book and members of the review panel are among the best scientists in their specialty. They represent major European and North American laboratories and thus provide a priori guarantees to the quality and updat of the entire book. Scientists and graduate students in paleoclimatology, paleoceanography, climate modeling, and undergraduate and graduate students in marine geology represent the target audience. This volume should be of interest for scientists involved in several international programs, such as those linked to the IPCC (IODP – Integrated Ocean Drilling Program; PAGES – Past Global Changes; IMAGES – Marine Global Changes; PMIP: Paleoclimate Intercomparison Project; several IGCP projects etc.), That is, all programs that require access to time series illustrating changes in the climate-ocean system. - Presents updated techniques and methods in paleoceanography - Reviews the state-of-the-art interpretation of proxies used for quantitative reconstruction of the climate-ocean system - Acts as a supplement for undergraduate and graduate courses in paleoceanography and marine geology