The Precious Gift Of Meteorites And Meteorite Impact Processes
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The Precious Gift of Meteorites and Meteorite Impact Processes by Aly A. Barakat Pdf
This book intends to provide readers an open invitation to liberate themselves and leave aside caution from meteorites threat, which is widely spread over media to survey one of the brightness sides of meteorites; their offering to humans from the economic point of view.
An account of the present knowledge about meteorites, and a discussion of what they tell us about the evolution of the solar system and life on Earth. The book is aimed at a wide readership - including secondary students, beginning geologists and general readers.
Plasma of Meteorite Impact and Prehistory of Life by George Managadze Pdf
This book offers a new concept of the possible genesis of primary forms of living matter in the processes that accompany a hypervelocity meteorite impact onto the surface of a planet. The concept is based on results obtained in direct impact experiments and in laboratory simulations of hypervelocity impact processes involving the generation of a plasma torch, on bona fide data on the physical processes occurring in nature, and on the available material evidence of impact consequences on Solar system bodies. The concept can explain the possibility of the emergence of extraterrestrial life in the interiors of celestial bodies with extreme surface temperatures and moderate temperatures in the inner layers provided water is present.
Incoming! Or, Why We Should Stop Worrying and Learn to Love the Meteorite by Ted Nield Pdf
"Astonishing new research suggests that 470 million years ago, a stupendous collision in the Asteroid Belt (whose debris is still falling today) bombarded the Earth with meteorites of all sizes. A revolutionary idea is emerging that the resulting ecological disturbance may have been responsible for the single greatest increase in biological diversity since the origin of complex life - the hitherto unexplained Great Ordovician Biodiversity Event. Introducing these fresh discoveries to a wider public for the first time, Ted Nield challenges the orthodox view that meteorite strikes are always bad news for life on Earth. He argues that one of the most widely known scientific theories - that dinosaurs were wiped out by a strike 65 million years ago - isn't the whole picture, and that the causes of the end-Cretaceous mass extinction (of which the dinosaurs' demise was a part) were much more varied and complex. Meteorites have been the stuff of legend throughout human history, interpreted as omens of doom or objects of power. But only in the 18th century, when the study of falling space debris became a science, were meteorites used to unlock the mysteries of our universe. Incoming! traces the history of meteorites from the first recorded strike to the video recordings made routinely today, showing how our interpretations have varied according to the age in which they fell, and how meteorite impacts were given fresh urgency with the advent of the atom bomb. Introducing a wealth of fascinating characters alongside extraordinary new research, Ted Nield has written the perfect introduction to the science and history of the falling sky"--Jacket.
Author : Kevin R. Evans Publisher : Geological Society of America Page : 222 pages File Size : 41,7 Mb Release : 2008-01-01 Category : Science ISBN : 9780813724379
The Sedimentary Record of Meteorite Impacts by Kevin R. Evans Pdf
Although about 70 percent of known terrestrial meteorite impacts involve sedimentary rocks, the response of such rock to hyper- velocity impact is not well understand. Evans (Missouri State U., Springfield) introduces a dozen papers from a session on impact geology at the 2004 Geological Society of America Annual Meeting. Arranged by rocks' stratigraphic order (oldest to youngest) in proximal and distal settings, papers study topics including: characterization of impact sediments; a model for impact cratering processes; development of breccias (rock composed of sharp fragments embedded in a fine- grained matrix) in the Chesapeake Bay impact structure; and the method of impact stratigraphy applied to aging of the K-T boundary associated with mass extinction. The well-illustrated volume is not indexed.
The impact of extraterrestrial material on Earth can lead to effects traceable in both the geological and biological record. This study describes meteorite flux with time, covering small and large bodies capable of producing craters. The effects of impacts on the environment is also covered focusing specifically on the Cretaceous-Tertiary mass extinction event.
Lunar Meteoroid Impacts and How to Observe Them by Brian Cudnik Pdf
The face of the Moon we see today has been substantially etched by the effects of meteor impacts. Craters on the Moon are the result of ancient impacts with large meteorites - or small asteroid-like bodies - which produced both primary craters (where the meteorites hit) and secondary craters (where material hurled high above the surface crashed back down). Even some of the vast lunar "seas" - actually basalt plains from ancient volcanic eruptions - may have been the result of impacts that triggered lava outflows. The era of major impacts on the Moon may have passed, but lunar meteorites may well be the cause of what are known as Lunar Transient Phonomena ("LTP" or sometimes "TLP") flashes and puffs of gas or vaporized rock or dust that are observed on the Moon's surface. This book looks at the way the Moon has been shaped by meteorites, proposes lunar meteorites as the most likely cause of most LTPs and describes in practical detail how amateur astronomers can observe impacts on the Moon, past and current.
Describes what meteors and micrometeors are, and describes the different types of meteorites, including lunar and martian meteorites, and how meteorites form craters.
Australia's Meteorite Craters by Kenneth McNamara Pdf
On Earth, catastrophic impact of an asteroid or comet with truly global consequences has not happened during our written history, and the threat seems very small. Giant scars on our planet’s surface are relics of an impact history stretching back more than 2 billion years, and there is no assurance it cannot happen again. In Australia there are 36 structures ranging from tens of metres to tens of kilometres in diameter, and recognised to varying degrees of certainty as having been formed by giant meteorite impact. In clear and concise language this book begins with ancient beliefs and myths about craters and then explains how they are actually formed and provides details of their structure. Using the record in the rocks, the authors also assess the likelihood of future impacts and their possible effects.
Shock impact alterations influence the structure, mineralogy, chemistry and the mechanical properties of many meteorites. The first chapter overviews the features and observing methods of shock impacts' results from several examples from various analysed meteorites. These case studies provide useful examples how the shock effects could be used to estimate former processes, conditions and outline geological history of meteorites. In the second chapter, a laboratory based analysis of meteorites provides insight to the readers into the ancient planet forming processes, when several protoplanets (larger than current asteroids) formed and changed both regarding their interiors and locations in the Solar System. The analysis of meteorites testifies that these objects might show variable characteristics even some internal activity, despite their relatively small size. In Chapter 3, the authors explore the number of meteorite finds in Northwest of Africa (Morocco, Algeria, Mauritania and Mali) which has seen a considerable increase since 1999. Their work leads to the creation of a new database of meteorites stemming from the Northwest of Africa. In turn, the reclassification of NWA meteorites certainly makes the meteorite heritage of Morocco and other countries of the Northwest of Africa valuable; a priceless heritage and of an inestimable scientific and socioeconomic value. In the last chapter, the authors examine a minimally contaminated material, which can be used for the analysis of the possible relations between Itokawa and the parent body of the Chelyabinsk meteorite.
Shock impact alterations influence the structure, mineralogy, chemistry and the mechanical properties of many meteorites. The first chapter overviews the features and observing methods of shock impacts' results from several examples from various analyzed meteorites. These case studies provide useful examples how the shock effects could be used to estimate former processes, conditions and outline geological history of meteorites. In the second chapter, a laboratory based analysis of meteorites provides insight to the readers into the ancient planet forming processes, when several protoplanets (larger than current asteroids) formed and changed both regarding their interiors and locations in the Solar System. The analysis of meteorites testifies that these objects might show variable characteristics even some internal activity, despite their relatively small size. In Chapter 3, the authors explore the number of meteorite finds in Northwest of Africa (Morocco, Algeria, Mauritania and Mali) which has seen a considerable increase since 1999. Their work leads to the creation of a new database of meteorites stemming from the Northwest of Africa. In turn, the reclassification of NWA meteorites certainly makes the meteorite heritage of Morocco and other countries of the Northwest of Africa valuable; a priceless heritage and of an inestimable scientific and socioeconomic value. In the last chapter, the authors examine a minimally contaminated material, which can be used for the analysis of the possible relations between Itokawa and the parent body of the Chelyabinsk meteorite.
Author : Ronnie McKenzie Publisher : Penguin Random House South Africa Page : 120 pages File Size : 43,9 Mb Release : 2014-08-04 Category : Science ISBN : 9781775841739
Meteorites are the remnants of meteors from outer space that have survived the corridor of fire through Earth's atmosphere and landed on our planet. Rare, and bearing secrets about the formation of our Universe, these 'treasures from space' have fascinated people ever since they were first identified in the late 18th century as extraterrestrial arrivals. This jam-packed book by enthusiast and collector Ronnie McKenzie introduces the topic in straightforward language and is richly illustrated with some 200 photographs and diagrams. It discusses how to identify meteorites, where they come from and where they have landed on Earth, the many different types, and how to set about collecting them. It also dispels some of the myths about these stones, and presents some infamous meteorite scams. A handy basic guide for those new to the topic, and for anyone interested in entering the field of meteorite collecting.
Large Meteorite Impacts and Planetary Evolution VI by Wolf Uwe Reimold,Christian Koeberl Pdf
"This volume contains a sizable suite of contributions dealing with regional impact records (Australia, Sweden), impact craters and impactites, early Archean impacts and geophysical characteristics of impact structures, shock metamorphic investigations, post-impact hydrothermalism, and structural geology and morphometry of impact structures - on Earth and Mars"--