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Marine Paleobiodiversity

Author: Mu Ramkumar
Publisher: Elsevier
ISBN: 0128093250
Size: 11.40 MB
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Marine Paleobiodiversity presents a concise history, development and current status of paleobiodiversity research, thus forming a reference work for beginners, graduates and postgraduates, who are interested in this subject and intend venture into serious research. This book provides a link-reference between text book and highly-specialized journal articles, and so will be valuable for a wide audience of geologists and climatologists. Presents studies on the human environmental impacts in climate changes, future sea level perturbations and the influence these have on biodiversity Authored by a renowned researcher with over 15 years’ experience in the field Includes recent research on the importance of paleobiodiversity patterns that influence sea level fluctuations

Eustasy High Frequency Sea Level Cycles And Habitat Heterogeneity

Author: Mu Ramkumar
Publisher: Elsevier
ISBN: 012812721X
Size: 52.88 MB
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Eustatic High-Frequency Sea Level Cycles and Habitat Heterogeneity: Basinal-Regional-Global Implications presents the current understanding and future directions of the research on Cretaceous sea level cycles in a single source. This reference work is for beginners, graduates, and postgraduates who are interested in the subject and intend to venture into serious research. This hybrid text/reference is for beginners, academics, and professionals who intend to document sea level dynamics on long and short time scales and resultant habitat and paleobiodiversity changes. Presents new and important regional geological knowledge with regard to the sedimentary basins of India Provides a one-stop-shop on high-frequency sea level cycles and fluctuations, and the impact created by tectonics and climatic cycles Contains reviews on the current status, case studies, and a look at future trends

Palaeobiogeography Of Marine Fossil Invertebrates

Author: Fabrizio Cecca
Publisher: CRC Press
ISBN: 9780415287890
Size: 19.65 MB
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Sitting squarely at the interface between earth and life sciences, palaeobiogeographic information is scattered throughout many publications. Until now. Palaeobiogeography of Marine Fossil Invertebrates covers important theoretical concepts relating to palaeobiogeography together with descriptions of analytical methods. Fabrizio Cecca discusses general biogeographical concepts and the factors influencing distributional patterns and provides case histories that illustrate the concepts covered. Cecca uses the palaeobiogeography of fossil organisms to generate hypotheses on continental drifting, past migration routes, palaeobiodiversity gradients, geographic barriers, palaeoclimatic and paleooceanographic conditions. He explores the biogeographical dimension of biodiversity through the analysis of existing latitudinal and longitudinal gradients of biodiversity and discusses the biodiversity/area relationship with particular reference to sea-level variations. Much of the material in the book has been drawn from the author's personal research and experience in ammonites and the Mesozoic pelagic biotas. To avoid lack of balance, he includes carefully selected case histories based on other fossil groups and geologic periods. The book is primarily for students and researchers of geology and palaeontology who whish to gain an understanding of palaeobiogeography, but will also be of interest to marine biologists concerned with the biogeographic aspects of palaeontology and evolution.

Effects Of Past Global Change On Life

Author:
Publisher: National Academies
ISBN:
Size: 61.83 MB
Format: PDF
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This book explores what earth scientists are learning about the impact of large-scale environmental changes on ancient life--and how these findings may help us resolve today's environmental controversies. Climate trends, mass extinctions, and the fall of plant and animal species in response to global change are considered. Specific recommendations on expanding research and improving investigative tools are offered.

Effects Of Past Global Change On Life

Author: Panel on Effects of Past Global Change on Life
Publisher: National Academies Press
ISBN: 0309552613
Size: 77.62 MB
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What can we expect as global change progresses? Will there be thresholds that trigger sudden shifts in environmental conditions--or that cause catastrophic destruction of life? Effects of Past Global Change on Life explores what earth scientists are learning about the impact of large-scale environmental changes on ancient life--and how these findings may help us resolve today's environmental controversies. Leading authorities discuss historical climate trends and what can be learned from the mass extinctions and other critical periods about the rise and fall of plant and animal species in response to global change. The volume develops a picture of how environmental change has closed some evolutionary doors while opening others--including profound effects on the early members of the human family. An expert panel offers specific recommendations on expanding research and improving investigative tools--and targets historical periods and geological and biological patterns with the most promise of shedding light on future developments. This readable and informative book will be of special interest to professionals in the earth sciences and the environmental community as well as concerned policymakers.

Palaeozoic Climate Cycles

Author: A. Gąsiewicz
Publisher: Geological Society of London
ISBN: 1862393575
Size: 59.26 MB
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This volume presents results of a variety of case studies documenting the Late Palaeozoic climate changes and cyclicity of deposition. The collected papers cover many aspects related to palaeoenvironmental analysis with sedimentological, stratigraphic, palaeobiological, geochemical, and palaeomagnetic studies of the fossil record around the Late Palaeozoic Ice Age and soon after. They span a stratigraphic interval from Carboniferous to Permian–Triassic transition around the world. This book comprising results for a range of disciplines, is a valuable source for not only researchers who are actively working on specific aspects of the Late Palaeozoic and looking for an up-to-date reference on this inhospitable time in the Earth’s history. It is also of interest to climate modellers and the wider scientific community with an interest in the latest research on the decline of the Palaeozoic World.

Understanding Earth S Deep Past

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309209196
Size: 26.20 MB
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There is little dispute within the scientific community that humans are changing Earth's climate on a decadal to century time-scale. By the end of this century, without a reduction in emissions, atmospheric CO2 is projected to increase to levels that Earth has not experienced for more than 30 million years. As greenhouse gas emissions propel Earth toward a warmer climate state, an improved understanding of climate dynamics in warm environments is needed to inform public policy decisions. In Understanding Earth's Deep Past, the National Research Council reports that rocks and sediments that are millions of years old hold clues to how the Earth's future climate would respond in an environment with high levels of atmospheric greenhouse gases. Understanding Earth's Deep Past provides an assessment of both the demonstrated and underdeveloped potential of the deep-time geologic record to inform us about the dynamics of the global climate system. The report describes past climate changes, and discusses potential impacts of high levels of atmospheric greenhouse gases on regional climates, water resources, marine and terrestrial ecosystems, and the cycling of life-sustaining elements. While revealing gaps in scientific knowledge of past climate states, the report highlights a range of high priority research issues with potential for major advances in the scientific understanding of climate processes. This proposed integrated, deep-time climate research program would study how climate responded over Earth's different climate states, examine how climate responds to increased atmospheric carbon dioxide and other greenhouse gases, and clarify the processes that lead to anomalously warm polar and tropical regions and the impact on marine and terrestrial life. In addition to outlining a research agenda, Understanding Earth's Deep Past proposes an implementation strategy that will be an invaluable resource to decision-makers in the field, as well as the research community, advocacy organizations, government agencies, and college professors and students.

New Research Opportunities In The Earth Sciences

Author: Committee on New Research Opportunities in the Earth Sciences at the National Science Foundation
Publisher: National Academies Press
ISBN: 0309219248
Size: 48.97 MB
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The 2001 National Research Council (NRC) report Basic Research Opportunities in Earth Science (BROES) described how basic research in the Earth sciences serves five national imperatives: (1) discovery, use, and conservation of natural resources; (2) characterization and mitigation of natural hazards; (3) geotechnical support of commercial and infrastructure development; (4) stewardship of the environment; and (5) terrestrial surveillance for global security and national defense. This perspective is even more pressing today, and will persist into the future, with ever-growing emphasis. Today's world-with headlines dominated by issues involving fossil fuel and water resources, earthquake and tsunami disasters claiming hundreds of thousands of lives and causing hundreds of billions of dollars in damages, profound environmental changes associated with the evolving climate system, and nuclear weapons proliferation and testing-has many urgent societal issues that need to be informed by sound understanding of the Earth sciences. A national strategy to sustain basic research and training of expertise across the full spectrum of the Earth sciences is motivated by these national imperatives. New Research Opportunities in the Earth Sciences identifies new and emerging research opportunities in the Earth sciences over the next decade, including surface and deep Earth processes and interdisciplinary research with fields such as ocean and atmospheric sciences, biology, engineering, computer science, and social and behavioral sciences. The report also identifies key instrumentation and facilities needed to support these new and emerging research opportunities. The report describes opportunities for increased cooperation in these new and emerging areas between EAR and other government agency programs, industry, and international programs, and suggests new ways that EAR can help train the next generation of Earth scientists, support young investigators, and increase the participation of underrepresented groups in the field.

Isotopic Studies In Cretaceous Research

Author: A.-V. Bojar
Publisher: Geological Society of London
ISBN: 1862393648
Size: 63.60 MB
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Isotopic studies combined with geochemical, lithological, mineralogical and palaeontological investigations have been widely used in reconstructing Cretaceous marine and continental environments. Furthermore stable and radiogenic isotope trends play an important role in the interpretation of the causes and consequences of biotic turnovers at stratigraphic boundaries as well as in global correlations.

Mantle Convection In The Earth And Planets 2 Volume Set

Author: Gerald Schubert
Publisher: Cambridge University Press
ISBN: 9780521798365
Size: 58.68 MB
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Mantle Convection in the Earth and Planets is a comprehensive synthesis of all aspects of mantle convection within the Earth, the terrestrial planets, the Moon, and the Galilean satellites of Jupiter. The authors include up-to-date discussions of the latest research developments that have revolutionized our understanding of the Earth and the planets. The book features a comprehensive index, an extensive reference list, numerous illustrations (many in color) and major questions that focus the discussion and suggest avenues of future research. It is suitable as a text for graduate courses in geophysics and planetary physics, and as a supplementary reference for use at the undergraduate level. It is also an invaluable review for researchers in the broad fields of the Earth and planetary sciences.