A Steeply Inclined Trajectory For The Chicxulub Impact
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A Steeply Inclined Trajectory For The Chicxulub Impact
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Author : Gareth S. Collins
language : en
Publisher:
Release Date : 2020
A Steeply Inclined Trajectory For The Chicxulub Impact written by Gareth S. Collins and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Abstract: The environmental severity of large impacts on Earth is influenced by their impact trajectory. Impact direction and angle to the target plane affect the volume and depth of origin of vaporized target, as well as the trajectories of ejected material. The asteroid impact that formed the 66 Ma Chicxulub crater had a profound and catastrophic effect on Earth's environment, but the impact trajectory is debated. Here we show that impact angle and direction can be diagnosed by asymmetries in the subsurface structure of the Chicxulub crater. Comparison of 3D numerical simulations of Chicxulub-scale impacts with geophysical observations suggests that the Chicxulub crater was formed by a steeply-inclined (45-60° to horizontal) impact from the northeast; several lines of evidence rule out a low angle (
Chicxulub The Impact And Tsunami
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Author : David Shonting
language : en
Publisher: Springer
Release Date : 2016-09-09
Chicxulub The Impact And Tsunami written by David Shonting and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-09 with Science categories.
This book tells the story of the catastrophic impact of the giant 10 Km asteroid Chicxulub into the ancient Gulf of Mexico 65.5 million years ago. The book begins with a discussion of the nature of asteroids and the likelihood of future Earth-impacts. The story then turns to the discovery of a global sediment layer attributed to the fallout from the impact and a piecing together of the evidence that revealed a monster crater, buried under the Gulf. Reviewed is the myriad of geological and fossil evidence that suggested the disastrous sequence of events occurring when a "nuclear-like" explosion ripped through the sea, Earth, and atmosphere, thus forming the mega-crater and tsunami. The aftermath of the Chicxulub's event initiated decades and more of major global climate changes including a "Nuclear Winter" of freezing darkness and blistering greenhouse warming. A chapter is dedicated to the science of tsunamis and their model generation, including a portrayal of the globally rampaging Chicxulub waves. The asteroid's global devastation killed off some 70% of animal and plant life including the dinosaurs. The study of an ancient Cambrian fossil bed suggests how "roll of the dice" events can affect the future evolution of life on Earth. We see how Chicxulub's apparent destruction of the dinosaurs, followed by the their replacement with small mammals, altered forever the progress of human evolution. This book presents a fascinating glimpse through the lens of the natural sciences - the geology, climatology, and oceanography, of the effects of an enormous astronomical event.
Natural Hazards And The Mitigation Of Their Impact
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Author : Gábor Mezősi
language : en
Publisher: Springer Nature
Release Date : 2022-08-18
Natural Hazards And The Mitigation Of Their Impact written by Gábor Mezősi and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-18 with Nature categories.
This book deals with natural hazards of geophysical, meteorological, hydrological, and biological types that are causing increasing social and economic damage. The development of these hazards and their impact on the living and non-living environment are described in the individual chapters. The compilation synthesises a natural and social geography approach, explores mitigation options and focuses attention on the processes that are most prevalent in Europe and Western Asia, in addition to global phenomena. The author argues that, with the right knowledge and preparedness, the wide-ranging impacts of natural hazards intertwined with climate change can be reduced. This work provides a wealth of digitally accessible professional information to help readers identify and manage natural hazards. The book is useful for students, educators, professionals, practitioners, and those interested in decision making.
The Last Days Of The Dinosaurs
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Author : Riley Black
language : en
Publisher: The History Press
Release Date : 2022-04-26
The Last Days Of The Dinosaurs written by Riley Black and has been published by The History Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-04-26 with Nature categories.
Some 66 million years ago, an asteroid some seven miles across slammed into the Earth, leaving a geologic wound over 50 miles in diameter. In the terrible mass extinction that followed, more than half of known species vanish seemingly overnight. But this worst single day in the history of life of Earth was as critical for us as it was for the dinosaurs, as it allowed for evolutionary opportunities that were closed for the previous 100 million years. In The Last Days of the Dinosaurs, Riley Black walks readers through what happened in the days, the years, the centuries and the million years after the impact. Life's losses were sharp and deeply felt, but the hope carried by the beings that survived sets the stage for the world as we know it now.
Dynamic Behavior Of Materials
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Author : Mikko Hokka
language : en
Publisher: Elsevier
Release Date : 2023-11-21
Dynamic Behavior Of Materials written by Mikko Hokka and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-11-21 with Technology & Engineering categories.
Dynamic Behavior of Materials: Fundamentals, Material Models, and Microstructure Effects provides readers with the essential knowledge and tools necessary to determine best practice design, modeling, simulation and application strategies for a variety of materials while also covering the fundamentals of how material properties and behavior are affected by material structure and high strain rates. The book examines the relationships between material microstructure and consequent mechanical properties, enabling the development of materials with improved performance and more effective design of parts and components for high-rate applications. Sections cover the fundamentals of dynamic material behavior, with chapters studying dynamic elasticity and wave propagation, dynamic plasticity of crystalline materials, ductile fracture, brittle fracture, adiabatic heating and strain localization, response to shock loading, various material characterization methods, such as the Hopkinson Bar Technique, the Taylor Impact Experiment, different shock loading experiments, recent advances in dynamic material behavior, the dynamic behaviors of nanocrystalline materials, bulk metallic glasses, additively manufactured materials, ceramics, concrete and concrete-reinforced materials, geomaterials, polymers, composites, and biomaterials, and much more. Focuses on the relationship between material microstructure and resulting mechanical responses Covers the fundamentals, characterization methods, modeling techniques, applications and recent advances of the dynamic behavior of a broad array of materials Includes insights into manufacturing and processing techniques that enable more effective material design and application
Mysteries Of The Deep
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Author : James Lawrence Powell
language : en
Publisher: MIT Press
Release Date : 2024-02-20
Mysteries Of The Deep written by James Lawrence Powell and has been published by MIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-02-20 with Science categories.
A groundbreaking chronicle of scientific ocean drilling—a crowning achievement of the twentieth century—and how it shaped our knowledge of Earth's past. Under the radar—or, rather, sonar—of most people and many scientists, for the last six decades ships have plied the world’s oceans, mining the seafloor for its secrets—and quietly resolving confounding geological mysteries. Continental drift and plate tectonics. The origin of the Hawaiʻian Islands. The erstwhile disappearance of the Mediterranean. The mystery of the ice ages. All are part of the story told by deep-sea drilling—and chapters in the history that unfolds in Mysteries of the Deep. In a series of vignettes ranging from the voyage of the HMS Challenger in the 1870s to the adventures of research ship Chikyū in the 2020s, James Powell recounts the surprises the seafloor has yielded to the probing of scientists. With a global, sometimes even extraterrestrial scope and a scientific reach that extends to every corner of geology and astrobiology, Powell’s work recounts how cores extracted from the ocean floor have: · produced insights into microbial life on Mars and the end of dinosaurs’ tenure on Earth · demonstrated that astronomical cycles control many geological events, and even human evolution · used a past episode of global warming to reveal the peril of high temperatures today · shown that global warming could melt enough Antarctic ice to drown the seacoasts The mysteries uncovered by deep-sea drilling, and covered by Powell in this eye-opening book, are many and various, often surprising and sometimes alarming—consequential not just for the science of the seafloor, but for how we learn about our planet's past and what we can do about its future.
Encyclopedia Of Astrobiology
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Author : Muriel Gargaud
language : en
Publisher: Springer Nature
Release Date : 2023-07-27
Encyclopedia Of Astrobiology written by Muriel Gargaud and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-07-27 with Science categories.
Now in its third edition the Encyclopedia of Astrobiology serves as the key to a common understanding in the extremely interdisciplinary community of astrobiologists. Each new or experienced researcher and graduate student in adjacent fields of astrobiology will appreciate this reference work in the quest to understand the big picture. The carefully selected group of active researchers contributing to this work are aiming to give a comprehensive international perspective on and to accelerate the interdisciplinary advance of astrobiology. The interdisciplinary field of astrobiology constitutes a joint arena where provocative discoveries are coalescing concerning, e.g. the prevalence of exoplanets, the diversity and hardiness of life, and its chances for emergence. Biologists, astrophysicists, (bio)-chemists, geoscientists and space scientists share this exciting mission of revealing the origin and commonality of life in the Universe. With its overview articles and its definitions the Encyclopedia of Astrobiology not only provides a common language and understanding for the members of the different disciplines but also serves for educating a new generation of young astrobiologists who are no longer separated by the jargon of individual scientific disciplines. This new edition offers ~170 new entries. More than half of the existing entries were updated, expanded or supplemented with figures supporting the understanding of the text. Especially in the fields of astrochemistry and terrestrial extremophiles but also in exoplanets and space sciences in general there is a huge body of new results that have been taken into account in this new edition. Because the entries in the Encyclopedia are in alphabetical order without regard for scientific field, this edition includes a section “Astrobiology by Discipline” which lists the entries by scientific field and subfield. This should be particularly helpful to those enquiring about astrobiology, as it illustrates the broad and detailed nature of the field.
A Very Short History Of Life On Earth
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Author : Henry Gee
language : en
Publisher: St. Martin's Press
Release Date : 2021-11-09
A Very Short History Of Life On Earth written by Henry Gee and has been published by St. Martin's Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-09 with Science categories.
The Royal Society's Science Book of the Year "[A]n exuberant romp through evolution, like a modern-day Willy Wonka of genetic space. Gee’s grand tour enthusiastically details the narrative underlying life’s erratic and often whimsical exploration of biological form and function.” —Adrian Woolfson, The Washington Post In the tradition of Richard Dawkins, Bill Bryson, and Simon Winchester—An entertaining and uniquely informed narration of Life's life story. In the beginning, Earth was an inhospitably alien place—in constant chemical flux, covered with churning seas, crafting its landscape through incessant volcanic eruptions. Amid all this tumult and disaster, life began. The earliest living things were no more than membranes stretched across microscopic gaps in rocks, where boiling hot jets of mineral-rich water gushed out from cracks in the ocean floor. Although these membranes were leaky, the environment within them became different from the raging maelstrom beyond. These havens of order slowly refined the generation of energy, using it to form membrane-bound bubbles that were mostly-faithful copies of their parents—a foamy lather of soap-bubble cells standing as tiny clenched fists, defiant against the lifeless world. Life on this planet has continued in much the same way for millennia, adapting to literally every conceivable setback that living organisms could encounter and thriving, from these humblest beginnings to the thrilling and unlikely story of ourselves. In A (Very) Short History of Life on Earth, Henry Gee zips through the last 4.6 billion years with infectious enthusiasm and intellectual rigor. Drawing on the very latest scientific understanding and writing in a clear, accessible style, he tells an enlightening tale of survival and persistence that illuminates the delicate balance within which life has always existed.
Large Meteorite Impacts Iii
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Author : Thomas Kenkmann
language : en
Publisher: Geological Society of America
Release Date : 2005-01-01
Large Meteorite Impacts Iii written by Thomas Kenkmann and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-01-01 with Science categories.
"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.
Large Meteorite Impacts And Planetary Evolution Vi
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Author : Wolf Uwe Reimold
language : en
Publisher: Geological Society of America
Release Date : 2021-09-23
Large Meteorite Impacts And Planetary Evolution Vi written by Wolf Uwe Reimold and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-23 with Science categories.
"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"--