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Relations Entre Particules Marines Et Message Sedimentaire
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Book Synopsis Use of Proxies in Paleoceanography by : Gerhard Fischer
Download or read book Use of Proxies in Paleoceanography written by Gerhard Fischer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paleoceanographic proxies provide infonnation for reconstructions of the past, including climate changes, global and regional oceanography, and the cycles of biochemical components in the ocean. These prox ies are measurable descriptors for desired but unobservable environmental variables such as tempera ture, salinity, primary productivity, nutrient content, or surface-water carbon dioxide concentrations. The proxies are employed in a manner analogous to oceanographic methods. The water masses are first characterized according to their specific physical and chemical properties, and then related to particular assemblages of certain organisms or to particular element or isotope distributions. We have a long-standing series of proven proxies available. Marine microfossil assemblages, for instance, are employed to reconstruct surface-water temperatures. The calcareous shells of planktonic and benthic microorgan isms contain a wealth of paleoceanographic information in their isotopic and elemental compositions. Stable oxygen isotope measurements are used to detennine ice volume, and MglCa ratios are related to water temperatures, to cite a few examples. Organic material may also provide valuable infonnation, e. g. , about past productivity conditions. Studying the stable carbon isotope composition of bulk organic matter or individual marine organic components may provide a measure of past surface-water CO 2 conditions within the bounds of certain assumptions. Within the scope of paleoceanographic investigations, the existing proxies are continuously evolving and improving, while new proxies are being studied and developed. The methodology is improved by analysis of samples from the water column and surface sediments, and through laboratory experiments.
Book Synopsis Soils and Sediments by : Helene Paquet
Download or read book Soils and Sediments written by Helene Paquet and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clays and soils are of great importance in various scientific fields, such as agriculture and environmental science, and in mineral deposits. Students and close collaborators of Georges Millot, the eminent French clay sedimentologist, have put together a book with topics ranging from weathering processes and diagenetic evalution of sediments to sedimentary mineral deposits. The book is of interest to practitioners, advanced students as well as teachers in the above fields.
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :925107948X Total Pages :172 pages Book Rating :4.2/5 (51 download)
Book Synopsis The Ocean Challenge Badge by : Food and Agriculture Organization of the United Nations
Download or read book The Ocean Challenge Badge written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-05-08 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ocean covers 70 percent of the Earth’s surface, and is essential for life on our planet – even for those of us who live nowhere near the sea! It provides us all with food and other materials that we need, regulates our climate and provides half of the oxygen we breathe. The ocean also offers us various means of transport and opportunities for recreation. People have long thought that the ocean was so wide and bountiful that it would go on supplying our needs forever, but this is not the case: human activities are causing significant damage to life in the ocean. People are often unaware of the problems created by this heavy reliance, as few of us have the opportunity to look beneath the surface of the sea and see the damage that our actions have caused. This is where the Ocean Challenge Badge comes in: let it take you on a journey to discover the ocean! It is packed with activities to help you learn about how the ocean works, the creatures that live in it, and just how important it is in our everyday lives. You will also discover how YOU can play a role in protecting our ocean for future generations. We hope you will be inspired to take the challenge and celebrate our ocean. So dive in and begin your aquatic discoveries!
Book Synopsis The Mediterranean region under climate change by : Collectif
Download or read book The Mediterranean region under climate change written by Collectif and published by IRD Éditions. This book was released on 2018-11-19 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been published by Allenvi (French National Alliance for Environmental Research) to coincide with the 22nd Conference of Parties to the United Nations Framework Convention on Climate Change (COP22) in Marrakesh. It is the outcome of work by academic researchers on both sides of the Mediterranean and provides a remarkable scientific review of the mechanisms of climate change and its impacts on the environment, the economy, health and Mediterranean societies. It will also be valuable in developing responses that draw on “scientific evidence” to address the issues of adaptation, resource conservation, solutions and risk prevention. Reflecting the full complexity of the Mediterranean environment, the book is a major scientific contribution to the climate issue, where various scientific considerations converge to break down the boundaries between disciplines.
Download or read book Deep-Sea Biology written by John D. Gage and published by Cambridge University Press. This book was released on 1991-04-18 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely volume provides a comprehensive account of the natural history of the organisms associated with the deep-sea floor and examines their relationship with this inhospitable environment--perhaps the most remote and least accessible location on the planet. The authors begin by describing the physical and chemical nature of the deep-sea floor and the methods used to collect and study its fauna. Then they discuss the ecology of the deep sea by exploring spatial patterns, diversity, biomass, vertical zonation, and large-scale distribution of organisms. Subsequent chapters review current knowledge of feeding, respiration, reproduction, and growth processes in these communities. The unique fauna of hypothermal vents and seeps are considered separately. Finally, there is a pertinent discussion of human exploitation of deep-sea resources and potential use of this environment for waste disposal.
Book Synopsis Dictionary of Building and Civil Engineering by : Don Montague
Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.
Book Synopsis UNESCO General History of Africa, Vol. I, Abridged Edition by : Jacqueline Ki-Zerbo
Download or read book UNESCO General History of Africa, Vol. I, Abridged Edition written by Jacqueline Ki-Zerbo and published by Univ of California Press. This book was released on 1990 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume covers the period from the end of the Neolithic era to the beginning of the seventh century of our era. This lengthy period includes the civilization of Ancient Egypt, the history of Nubia, Ethiopia, North Africa and the Sahara, as well as of the other regions of the continent and its islands."--Publisher's description
Book Synopsis French Grammar in Context by : Margaret Jubb
Download or read book French Grammar in Context written by Margaret Jubb and published by Routledge. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taking authentic texts from a variety of sources - the human body on CD-ROM, a fish recipe, 'L'Etranger' and many others - this book uses them as a starting point for the illustration and explanation of key areas of French grammar. It includes a range of exercises, many of them text-based.
Book Synopsis SOME METHODS FOR THE STATISTICAL ANALYSIS OF SAMPLES OF BENTHIC INVERTEBRATES. by : John Malcolm Elliott
Download or read book SOME METHODS FOR THE STATISTICAL ANALYSIS OF SAMPLES OF BENTHIC INVERTEBRATES. written by John Malcolm Elliott and published by . This book was released on 1971 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Stratigraphical Basis for the Anthropocene by : C.N. Waters
Download or read book A Stratigraphical Basis for the Anthropocene written by C.N. Waters and published by Geological Society of London. This book was released on 2014-06-05 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Humankind has pervasively influenced the Earth’s atmosphere, biosphere, geosphere, hydrosphere and cryosphere, arguably to the point of fashioning a new geological epoch, the Anthropocene. To constrain the Anthropocene as a potential formal unit within the Geological Time Scale, a spectrum of indicators of anthropogenically-induced environmental change is considered, and shown as stratigraphical signals that may be used to characterize an Anthropocene unit, and to recognize its base. This volume describes a range of evidence that may help to define this potential new time unit and details key signatures that could be used in its definition. These signatures include lithostratigraphical (novel deposits, minerals and mineral magnetism), biostratigraphical (macro- and micro-palaeontological successions and human-induced trace fossils) and chemostratigraphical (organic, inorganic and radiogenic signatures in deposits, speleothems and ice and volcanic eruptions). We include, finally, the suggestion that humans have created a further sphere, the technosphere, that drives global change.
Book Synopsis Computational Fluid Dynamics with Moving Boundaries by : Wei Shyy
Download or read book Computational Fluid Dynamics with Moving Boundaries written by Wei Shyy and published by Courier Corporation. This book was released on 2012-08-21 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text describes several computational techniques that can be applied to a variety of problems in thermo-fluid physics, multi-phase flow, and applied mechanics involving moving flow boundaries. Step-by-step discussions of numerical procedures include multiple examples that employ algorithms in problem-solving. In addition to its survey of contemporary numerical techniques, this volume discusses formulation and computation strategies as well as applications in many fields. Researchers and professionals in aerospace, chemical, mechanical, and materials engineering will find it a valuable resource. It is also an appropriate textbook for advanced courses in fluid dynamics, computation fluid dynamics, heat transfer, and numerical methods.
Book Synopsis Abyssal Environment and Ecology of the World Oceans by : R. J. Menzies
Download or read book Abyssal Environment and Ecology of the World Oceans written by R. J. Menzies and published by Wiley-Interscience. This book was released on 1973-04-25 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ancient Earthquakes by : M. Sintubin
Download or read book Ancient Earthquakes written by M. Sintubin and published by Geological Society of America. This book was released on 2010-01-01 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Ancient earthquakes are pre-instrumental earthquakes that can only be identified through indirect evidence in the archaeological (archaeoseismology) and geological (palaeoseismology) record. Special Paper 471 includes a selection of cases convincingly illustrating the different ways the archaeological record is used in earthquake studies. The first series of papers focuses on the relationship between human prehistory and tectonically active environments, and on the wide range of societal responses to historically known earthquakes. The bulk of papers concerns archaeoseismology, showing the diversity of approaches, the wide range of disciplines involved, and its potential to contribute to a better understanding of earthquake history. Ancient Earthquakes will be of interest to the broad community of earth scientists, seismologists, historians, and archaeologists active in and around archaeological sites in the many regions around the world threatened by seismic hazards. This Special Paper frames in the International Geoscience Programme IGCP 567 'Earthquake Archaeology: Archaeoseismology along the Alpine-Himalayan Seismic Zone.'"--Publisher's description.
Book Synopsis Seaweeds and their Role in Globally Changing Environments by : Alvaro Israel
Download or read book Seaweeds and their Role in Globally Changing Environments written by Alvaro Israel and published by Springer Science & Business Media. This book was released on 2010-06-18 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global warming is accelerating faster than the ability for natural repair, and environmental stresses are damaging ecosystems, all affecting physical and biological systems on Earth. A new Nasa-led study shows that human activity has caused climate changes resulting in permafrost thawing, acid rain, and lower productivity in lakes as well as increased emissions of greenhouse gases, including CO2, N20, CH4, CF3, and CFC. Marine plants play a vital role in maintaining the balance of marine environments, while serving as a source of food for humankind and important chemical compounds. Microalgae and seaweed have enormous potential for reducing global warming and climate change. During photosynthesis algae grow, draw CO2 from the atmosphere, release oxygen, and produce solar biofuel. Experts in the life of marine plant ecosystems in globally changing environments contributed chapters to this book. The target readers are phycologists, ecologists, atmospheric scholars, conservationists, environmentalists, and ecologically aware laymen.
Book Synopsis Arsenic in Drinking Water by : National Research Council
Download or read book Arsenic in Drinking Water written by National Research Council and published by National Academies Press. This book was released on 2001-11-26 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Having safe drinking water is important to all Americans. The Environmental Protection Agency's decision in the summer of 2001 to delay implementing a new, more stringent standard for the maximum allowable level for arsenic in drinking water generated a great deal of criticism and controversy. Ultimately at issue were newer data on arsenic beyond those that had been examined in a 1999 National Research Council report. EPA asked the National Research Council for an evaluation of the new data available. The committee's analyses and conclusions are presented in Arsenic in Drinking Water: 2001 Update. New epidemiological studies are critically evaluated, as are new experimental data that provide information on how and at what level arsenic in drinking water can lead to cancer. The report's findings are consistent with those of the 1999 report that found high risks of cancer at the previous federal standard of 50 parts per billion. In fact, the new report concludes that men and women who consume water containing 3 parts per billion of arsenic daily have about a 1 in 1,000 increased risk of developing bladder or lung cancer during their lifetime.
Book Synopsis Biology of Benthic Organisms by : B. F. Keegan
Download or read book Biology of Benthic Organisms written by B. F. Keegan and published by Elsevier. This book was released on 2013-09-24 with total page 665 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Benthic Organisms contains papers presented at the 11th European Symposium on Marine Biology, held at Galway, Ireland in October 1976. The collection contains 63 papers discussing the biological aspects of benthic organisms. The authors, mostly marine biologists, provide articles discussing their studies of marine life from different bodies of water from around the world. Topics on community structures of soft-bottom macrofauna in different parts of the Baltic; studies on anaerobic nitrogen fixation in the sediments of two Scottish sea-lochs; distribution of benthic phyto- and zoocoenoses along a light gradient in a superficial marine cave; and structural features of a North Adriatic benthic community are discussed in detail. Marine biologists, botanists, zoologists, and biologists will find the book invaluable.
Book Synopsis Paul J. Crutzen and the Anthropocene: A New Epoch in Earth’s History by : Susanne Benner
Download or read book Paul J. Crutzen and the Anthropocene: A New Epoch in Earth’s History written by Susanne Benner and published by Springer Nature. This book was released on 2022-01-01 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book outlines the development and perspectives of the Anthropocene concept by Paul J. Crutzen and his colleagues from its inception to its implications for the sciences, humanities, society and politics. The main text consists primarily of articles from peer-reviewed scientific journals and other scholarly sources. It comprises selected articles on the Anthropocene published by Paul J. Crutzen and a selection of related articles, mostly but not exclusively by colleagues with whom he collaborated closely. • In the year 2000 Nobel Laureate Paul J. Crutzen proposed the Anthropocene concept as a new epoch in Earth’s history • Comprehensive collection of articles on the Anthropocene by Paul J. Crutzen and his colleagues• Unique primary research literature and Crutzen’s comprehensive bibliography• Paul Crutzen’s scientific investigations into human influences on atmospheric chemistry and physics, the climate and the Earth system, leading to the conception of the Anthropocene• Reflections on the Anthropocene and its implications• Bibliometric review of the spread of the use of the Anthropocene concept in the Natural and Social Sciences, Humanities and Law
