Download or read book Impact related Modifications of Magnetite and Pyrrhotite and Their Consequences for the Magnetic Properties of Rocks from the Chesapeake Bay Impact Structure Virginia USA written by Christoph Mang and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The ICDP USGS Deep Drilling Project in the Chesapeake Bay Impact Structure written by Gregory S. Gohn and published by Geological Society of America. This book was released on 2009 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In 2005 and 2006, an international deep drilling project, conceived and organized under the auspices of the International Continental Scientific Drilling Program and the U.S. Geological Survey, continuously cored three boreholes to a total depth of 1.766 km near the center of the Chesapeake Bay impact structure in Northampton County, Virginia. This volume presents the initial results of geologic, petrographic, geochemical, paleontologic, geophysical, hydrologic, and microbiologic analyses of the Eyreville cores, which constitute a step forward in our understanding of the Chesapeake Bay impact structure and marine impact structures in general. The editors have organized this extensive volume into the following sections: geologic columns; borehole geophysical studies; regional geophysical studies; crystalline rocks, impactites, and impact models; sedimentary breccias; post-impact sediments; hydrologic and geothermal studies; and microbiologic studies. The multidisciplinary approach to the study of this impact structure should provide a valuable example for future scientific drilling investigations."--Publisher's description.
Download or read book Magnetic Study of Rocks from the Chesapeake Bay Impact Structure USA written by Christoph Mang and published by Sudwestdeutscher Verlag Fur Hochschulschriften AG. This book was released on 2013 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impact craters are often characterized by magnetic anomalies, which can be rather complex. Since such anomalies are important indicators of the properties of extraterrestrial bodies, a well-grounded understanding of the main magnetic mineral's behavior is very important. A good place to start such studies are the impact craters we find on planet earth. This study is focused on the magnetic anomaly of the Chesapeake Bay impact crater, USA, and gives a detailed characterization of the geological units, the magnetic minerals therein and their geological evolution. It furthermore comprises the results of explosive experiments, which were conducted in order to keep the effect of post-impact mineral modifications, such as weathering, apart from crystal defects introduced by shock. The distinctive part of this work lies in the combination of geological and physical techniques. This approach allowed an extensive interpretation of the microstructural and magnetic features in a general geological context.
Download or read book Backstripping the Chesapeake Bay Impact Structure written by Travis Gary Hayden and published by . This book was released on 2008 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chesapeake Bay impact structure is a ca. 35.4 Ma old crater located on the coastal plain of Virginia along the eastern seaboard of North America. The impact generated a crater between 85 and 90 km in diameter, and over 2000 meters deep. Deposition returned to normal shortly after impact, resulting in a unique record of both the impact related and subsequent passive margin sedimentation. We use backstripping to show that the impact strongly affected sedimentation for 7 m.y. through a combination of impact derived crustal scale tectonics, dominated by the introduction and subsequent removal of a negative thermal anomaly, and the effects of sediment compaction and. This is contrary to the positive thermal anomaly that was hypothesized to be generated by an impact event. After the effects of the impact ceased, the area was dominated by passive margin thermal subsidence, which was overprinted by periods of regional scale vertical tectonic events. These regional scale non-thermal tectonics were on the order of 10's of meters and may have been caused by loading due to prograding sediment bodies.
Download or read book The Origins of Magnetic Anomaly Lows Associated with Three Impact Structures written by Ronald Glenn Scott and published by . This book was released on 1996 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drill cores from three Canadian impact structures were analysed for rock magnetic properties and mineralogy, in order to explain the reduced magnetizations associated with these structures. Samples from the drill cores were cut and measured for AMS and NRM parameters. Drill cores from the twin impact craters of the Clearwater structure exhibited different natural remanent magnetization (NRM) characteristics and samples from their respective drill cores were subject to demagnetization by alternating field and thermal techniques. The difference noted in their NRM characteristics was attributed to the acquisition of a viscous remanent magnetization (VRM) at depth in Clearwater East.
Download or read book Large Meteorite Impacts and Planetary Evolution IV written by W. U. Reimold and published by Geological Society of America. This book was released on 2010-01-01 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Fourth International Conference on Large Meteorite Impacts and Planetary Evolution held at the Vredefort Dome, South Africa, in Aug. 2008.
Download or read book The Physical Principles of Rock Magnetism written by Frank Stacey and published by Elsevier. This book was released on 2012-12-02 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developments in Solid Earth Geophysics 5: The Physical Principles of Rock Magnetism explores the physical principles of rock magnetism, with emphasis on the properties of finely divided magnetic materials. It discusses the origin and stability of rock magnetizations, the role of remanent magnetism in interpreting magnetic surveys, magnetic anisotropy as an indicator of rock fabric, and the relationship between piezomagnetic changes and seismic activity. Organized into 13 chapters, this volume discusses the properties of solids, magnetite and hematite grains, and rocks with magnetite grains. It also explains various theories and equations in studying rock magnetism. Different types of magnetization are discussed, including their occurrence, significance, and effects. Some of the types include depositional and chemical remanent and thermoremanent magnetization. In addition, this book explains the thermal activation and Piezomagnetic effects, as well as the reversals of remanent magnetism. This reference contains appendices with tables of relevant functions, such as Langevin Function. This book is a valuable source of information for physicists and geologists.
Download or read book Large Meteorite Impacts and Planetary Evolution V written by Gordon R. Osinski and published by Geological Society of America. This book was released on 2015-10-22 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume, the geologic and planetary science communities explore impact events and how they affected the evolution of Earth and other planetary bodies. these papers are the outcome of a conference held every five years.
Download or read book Ore Deposits and Mantle Plumes written by Franco Pirajno and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: PERTH Western Australia March 2000 Increasingly explorationists are seeking to find new ore deposits in poorly prospected areas, be they geographically remote, such as in the Arctic, or geologically remote, such as those under sedimentary cover. Modern prospecting techniques, including low-detection-level geochemistry and the use of advanced geophysical instrumentation have greatly assisted explorers but fundamental to any soundly based exploration program remains an understanding of the geological framework of ore deposits. This allows the development of deposit models on macroscopic and mesoscopic scales. This book by Dr. Franeo Pirajno draws on his extensive and wide global experience. To set the scene for a discussion of ore deposit generation Franeo details the Earths internal structures and mantle dynamics. He then explores the impact of mantle plumes on the crust and in particular their role in the production of magmatic environments, and in continental scale rifting. This includes a descriptive section on magmatic provinces around the globe, which highlights the importance of plumes. Any study of Earth processes needs to take into account the effects of extraterrestrial bombardment, and in particular the results from the impacts of large bolides. The effects of these impacts on the atmosphere and on life have now been recognised as profound. It is likely that the effect ofthese impacts on the Earth's crust is as equally profound.
Download or read book Impact Tectonics written by Christian Koeberl and published by Springer Science & Business Media. This book was released on 2005-03-11 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of international contributions presenting current knowledge of impact tectonics, geological and geophysical investigations of terrestrial impact structures, and suggested new impact structures, resulting from the IMPACT program.
Download or read book Large Meteorite Impacts and Planetary Evolution written by B. O. Dressier and published by Geological Society of America. This book was released on 1994-01-01 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprises 28 papers which grew out of the International Conference on Large Meteorite Impacts and Planetary Evolution, August/September, 1992 in Sudbury, Ontario. The interdisciplinary papers, encompassing diverse studies from trace element geochemistry to planetary exploration, are arranged into f
Download or read book Synopsis of Geologic and Hydrologic Results written by and published by . This book was released on 1961 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Large Meteorite Impacts III written by Thomas Kenkmann and published by Geological Society of America. This book was released on 2005-01-01 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The third volume of the series “Large Meteorite Impacts” provides an updated and comprehensive overview of modern impact crater research. In 26 chapters, more than 90 authors from Europe, the United States, Russia, Canada, and South Africa give a balanced, firsthand account of the multidisciplinary field of cratering science, with reports on field studies, geophysical analyses, and experimental and numerical simulations. Nine chapters focus on structure, geophysics, and cratering motions of terrestrial craters. Recent advances in impact ejecta studies and shock metamorphism are assembled, each with seven chapters, and three chapters extend the scope from a terrestrial to a planetary perspective."--pub. desc.
Download or read book Planetary Geology written by Claudio Vita-Finzi and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent planetary missions by NASA, the European Space Agency, and other national agencies have reaffirmed that the geological processes which are familiar from our studies of Earth also operate on many solid planets and satellites. Common threads link the internal structure, thermal evolution, and surface character of both rocky and icy worlds. Volcanoes, impact craters, ice caps, dunes, rift valleys, rivers, and oceans are features of extra-terrestrial worlds as diverse as Mercury and Titan. The new data reveal that many of the supposedly inert planetary bodies were recently subject to earthquakes, landslides, and climate change and that some of them display active volcanism. Moreover, our understanding of the very origins of the solar system depends heavily on the composition of meteorites from Mars reaching the Earth and of rock fragments found on the Moon. Planetary Geology provides the student reader and enthusiastic amateur with comprehensive coverage of the solar system viewed through the eyes of Earth scientists. Combining extensive use of imagery, the results of laboratory experiments, and theoretical modeling, this comprehensively updated second edition (previously published in paperback and now available in hardback) presents fresh evidence that, to quote the first edition, planetary geology now embraces conventional geology and vice versa. *** " . . . a much improved version of what was already a good book. The new text is some 20 percent longer . . . color illustrations have been dispersed throughout . . . and the information presented is brought right up to the minute with numerous injections of new scientific results from the many space missions that have been conducted since the first edition appeared. Recommended." - Choice, Vol. 51, No. 07, March 2014~
Download or read book The Lunar Origin of Tektites written by Dean R. Chapman and published by . This book was released on 1963 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pyrite written by David Rickard and published by Oxford University Press. This book was released on 2015-04-08 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most people have heard of pyrite, the brassy yellow mineral sometimes known as fool's gold. Pyrite behaves like stone and shines like metal, and its dual nature makes it a source of both metals and sulfur. Despite being the most common sulfide mineral on the earth's surface, pyrite's bright crystals have attracted the attention of many different cultures, and its nearly identical visual appearance to gold has led to tales of fraud, trickery, and claims of alchemy. Pyrite occupies a unique place in human history: it became an integral part of mining culture in America during the 19th century, and it has a presence in ancient Sumerian texts, Greek philosophy, and medieval poetry, becoming a symbol for anything overvalued. In Pyrite, geochemist and author David Rickard blends basic science and historical narrative to describe the many unique ways pyrite is integral to our world. He explains the basic science of oxidation, showing us why the mineral looks like gold, and inspects death zones of present oceans where pyrite-related hydrogen sulfide destroys oxygen in the waters. Rickard analyzes pyrite's role in manufacturing sulfuric acid and discusses the significant appearance of the mineral in literature, history, and the development of societies. The mineral's influence extends from human evolution and culture, through science and industry, to our understanding of ancient, modern, and future earth environments. Energetic and accessible, Pyrite is the first book to show readers the history and science of a mineral that helped make the modern world.
Download or read book North Carolina and Its Resources written by North Carolina. Board of Agriculture and published by . This book was released on 1896 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
