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Every year Earth is bombarded with about 40,000 tons of extraterrestrial material. This includes microscopic cosmic dust particles shed by comets and asteroids in outer space, meteorites, as well as large comets and asteroids that have led to catastrophic events in the geologic past. Originally considered only a curiosity, extraterrestrial matter found on Earth provides the only samples we have from comets, asteroids and other planets. Only recently mankind has started to actively collect extraterrestrial matter in space (Apollo program, Stardust mission) rather than to wait for its delivery to Earth. Still, most of our knowledge of the origin and evolution of our solar system is based on careful studies of meteorites, cosmic dust, and traces of large impact events in the geologic record such as the mass extinction that terminated the Cretaceous Period and led to the extinction of the dinosaurs. This book summarizes our current knowledge of the properties, origin, orbital evolution and accretion mechanism of extraterrestrial matter accreted on Earth and sheds light on accretion processes and fluxes in the geologic past. The chapters in the first part of the book are arranged in order to follow extraterrestrial matter from its origin in space, its orbital evolution on its way to Earth, its interaction with the Earth magnetosphere and atmosphere to its more or less violent collision with the Earth's surface. In the second part of the book several chapters deal with the present?day flux of cosmic dust and meteorites to Earth. Finally, several chapters deal with the reconstruction of the accretion history of extraterrestrial matter on Earth, starting with the most recent geologic past and ending with the very early, violent accretion period shortly after the formation of Earth, Moon and other solid planets in our solar system.

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Genre: Science
Author: Bernhard Peucker-Ehrenbrink
Publisher: Springer Science & Business Media
Release: 2012-12-06
File: 466 Pages
ISBN-13: 9781441986948

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Two hundred years after the first asteroid was discovered, asteroids can no longer be considered mere points of light in the sky. Spacecraft missions, advanced Earth-based observation techniques, and state-of-the-art numerical models are continually revealing the detailed shapes, structures, geological properties, and orbital characteristics of these smaller denizens of our solar system. This volume brings together the latest information obtained by spacecraft combined with astronomical observations and theoretical modeling, to present our best current understanding of asteroids and the clues they reveal for the origin an,d evolution of the solar system. This collective knowledge, prepared by a team of more than one hundred international authorities on asteroids, includes new insights into asteroid-meteorite connections, possible relationships with comets, and the hazards posed by asteroids colliding with Earth. The book's contents include reports on surveys based on remote observation and summaries of physical properties; results of in situ exploration; studies of dynamical, collisional, cosmochemical, and weathering evolutionary processes; and discussions of asteroid families and the relationships between asteroids and other solar system bodies. Two previous Space Science Series volumes have established standards for research into asteroids. Asteroids III carries that tradition forward in a book that will stand as the definitive source on its subject for the next decade.

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Genre: Science
Author: William Frederick Bottke
Publisher: University of Arizona Press
Release: 2002-01-01
File: 785 Pages
ISBN-13: 0816522812

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The Late Eocene and the Eocene-Oligocene (E-O) transition mark the most profound oceanographic and climatic changes of the past 50 million years of Earth history, with cooling beginning in the middle Eocene and culminating in the major earliest Oligocene Oi-1 isotopic event. The Late Eocene is characterized by an accelerated global cooling, with a sharp temperature drop near the E-O boundary, and significant stepwise floral and faunal turnovers. These global climate changes are commonly attributed to the expansion of the Antarctic ice cap following its gradual isolation from other continental masses. However, multiple extraterrestrial bolide impacts, possibly related to a comet shower that lasted more than 2 million years, may have played an important role in deteriorating the global climate at that time. This book provides an up-to-date review of what happened on Earth at the end of the Eocene Epoch.

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Genre: Science
Author: Christian Koeberl
Publisher: Geological Society of America
Release: 2009
File: 322 Pages
ISBN-13: 9780813724522

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"This Special Paper presents a collection of 19 papers contributed to a joint Field Forum organized by the Geological Society of America and the Geological Society of South Africa in July 2004 in the Barberton Greenstone Belt and the Vredefort Dome, South Africa. The papers cover a wide variety of themes, including Archean and Proterozoic crust formation and geodynamics (with an appraisal of evidence of Archean subduction processes); the significance of impacts in the evolution of the early Earth's crust; traces of early life in Archean environments of Australia and South Africa and related studies of depositional environments; and processes affecting the giant Witwatersrand gold deposit."--Publisher's website.

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Genre: Science
Author: W. U. Reimold
Publisher: Geological Society of America
Release: 2006-01-01
File: 407 Pages
ISBN-13: 9780813724058

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Leading specialists in various disciplines were first invited to a multidisciplinary workshop funded by ICSU on the topic to gain a better appreciation and perspective on the subject of comet/asteroid impacts as viewed by different disciplines. This volume provides a necessary link between various disciplines and comet/asteroid impacts.

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Genre: Science
Author: Peter T. Bobrowsky
Publisher: Springer Science & Business Media
Release: 2007-06-10
File: 546 Pages
ISBN-13: 9783540327110

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The year 2009 marks the 150th anniversary of the publication of Charles Darwin's On the Origin of Species. Alongside that event, there are many Darwin Day celebrations planned to acknowledge his 200th birthday. Add to these the virulent attacks of the New Atheists, led by Richard Dawkins. Bible-believing Christians will be left increasingly challenged with the theory of evolution as the only model to explain the origins and age of the universe. In More Than a Theory, Hugh Ross, founder and president of Reasons To Believe, offers discerning readers a comprehensive, testable creation model to consider as an alternative. This fascinating resource will educate readers with a direct response to the recent and well-publicized challenges from aggressive atheists. In doing so, it also reminds the scientific community of what constitutes good science. Furthermore, it will supply Christians with the scientific information they need to defend their convictions that the God of the Bible is the Creator. Complete with several appendices that put common documents and stories to the same test, More Than a Theory is a bold, brave, and unapologetic work of apologetics that will stir much discussion in both the scientific and religious realms.

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Genre: Religion
Author: Hugh Ross
Publisher: Baker Books
Release: 2009-03-01
File: 302 Pages
ISBN-13: 1441203990

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This review gathers astronomers, geologists, biologists, and chemists around a common question: how did life emerge on Earth? The ultimate goal is to probe an even more demanding question: is life universal? This not-so linear account highlights problems, gaps, and controversies. Discussion covers the formation of the solar system; the building of a habitable planet; prebiotic chemistry, biochemistry, and the emergence of life; the early Earth environment, and much more.

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Genre: Science
Author: Muriel Gargaud
Publisher: Springer Science & Business Media
Release: 2007-07-05
File: 370 Pages
ISBN-13: 9780387450834

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The focus of this interdisciplinary volume is on four areas of nanoparticle research: characterization, manipulation, and potential effects on humanity and the environment. The book includes a comprehensive collection of data on industrial nanoparticle creation and the characterization of the nanoscale products of these processes. The authors describe the effects of these nanoscale structures on human health and discuss prospective implementations for detection and characterization of nanoparticles in the environment. They recommend, utilizing the most up-to-date understanding of nanotechnology, methods for limiting the negative effects of these products on the environment and human health through manipulation, sorting, and filtration.

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Genre: Technology & Engineering
Author: Mihai Lungu
Publisher: Springer
Release: 2014-10-28
File: 355 Pages
ISBN-13: 9783319117287

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Genre: Mineralogy
Author:
Publisher:
Release: 2002
File: Pages
ISBN-13: UOM:39015056621579

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Volume 62 of Reviews in Mineralogy and Geochemistry reviews the recent research in the geochemistry and mineral physics of hydrogen in the principal mineral phases of the Earth's crust and mantle. Contents: Analytical Methods for Measuring Water in Nominally Anhydrous MineralsThe Structure of Hydrous Species in Nominally Anhydrous Minerals: Information from Polarized IR SpectroscopyStructural Studies of OH in Nominally Anhydrous Minerals Using NMRAtomistic Models of OH Defects in Nominally Anhydrous MineralsHydrogen in High Pressure Silicate and Oxide Mineral StructuresWater in Nominally Anhydrous Crustal Minerals: Speciation, Concentration, and Geologic SignificanceWater in Natural Mantle Minerals I: PyroxenesWater in Natural Mantle Minerals II: Olivine, Garnet and Accessory MineralsThermodynamics of Water Solubility and PartitioningThe Partitioning of Water Between Nominally Anhydrous Minerals and Silicate MeltsThe Stability of Hydrous Mantle PhasesHydrous Phases and Water Transport in the Subducting SlabDiffusion of Hydrogen in MineralsEffect of Water on the Equation of State of Nominally Anhydrous MineralsRemote Sensing of Hydrogen in Earth's Mantl

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Genre: Science
Author: Hans Keppler
Publisher: Mineralogical Society of Amer
Release: 2006
File: 478 Pages
ISBN-13: UCSD:31822035371160

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