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Encyclopedia of geochemistry : A Comprehensive Reference Source on the Chemistry of the Earth
Cham, Switzerland : Springer, [2018]The Encyclopedia is a complete and authoritative reference work for this rapidly evolving field. Over 300 international scientists, each experts in their specialties, have written over 330 separate topics on different aspects of geochemistry including geochemical thermodynamics and kinetics, isotope and organic geochemistry, meteorites and cosmochemistry, the carbon cycle and climate, trace elements, geochemistry of high and low temperature processes, and ore deposition, to name just a few. The geochemical behavior of the elements is described as is the state of the art in analytical geochemistry. Each topic incorporates cross-referencing to related articles, and also has its own reference list to lead the reader to the essential articles within the published literature. The entries are arranged alphabetically, for easy access, and the subject and author indices are comprehensive and extensive. Geochemistry applies chemical techniques and approaches to understanding the Earth and how it works. It touches upon almost every aspect of earth science, ranging from applied topics such as the search for energy and mineral resources, environmental pollution, and climate change to more basic questions such as the Earth's origin and composition, the origin and evolution of life, rock weathering and metamorphism, and the pattern of ocean and mantle circulation. Geochemistry allows us to assign absolute ages to events in Earth's history, to trace the flow of ocean water both now and in the past, trace sediments into subduction zones and arc volcanoes, and trace petroleum to its source rock and ultimately the environment in which it formed. The earliest of evidence of life is provided by chemical and isotopic traces, not fossils, preserved in rocks. Geochemistry has allowed us to unravel the history of the ice ages and thereby deduce their cause. Geochemistry allows us to determine the swings in Earth's surface temperatures during the ice ages, determine the temperatures and pressures at which rocks have been metamorphosed, and the rates at which ancient magma chambers cooled and crystallized. The field has grown rapidly more sophisticated, in both analytical techniques that can determine elemental concentrations or isotope ratios with exquisite precision and in computational modeling on scales ranging from atomic to planetary.
Online SpringerLink
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Nitrogen isotopes in the recent solar wind from the analysis of genesis targets [electronic resource] : evidence for large scale isotope heterogeneity in the nascent solar system
Washington, D.C. : United States. Dept. of Energy ; Oak Ridge, Tenn. : distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2009Nitrogen, the fifth most abundant element in the universe, displays the largest stable isotope variations in the solar system reservoirs after hydrogen. Yet the value of isotopic composition of solar nitrogen, presumably the best proxy of the protosolar nebula composition, is not known. Nitrogen isotopes trapped in Genesis spacecraft target material indicate a 40 % depletion of ¹⁵N in solar wind N relative to inner planets and meteorites, and define a composition for the present-day Sun undistinguishable from that of Jupiter's atmosphere. These results indicate that the isotopic composition of of nitrogen in the outer convective zone of the Sun (OCZ) has not changed through time, and is representative of the protosolar nebula. Large ¹⁵N enrichments during e.g., irradiation, or contributions from ¹⁵N-rich presolar components, are required to account for planetary values.
Online OSTI
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Bill Evans Live in Paris : With Eddie Gómez and Marty Morell
[Place of publication not identified] : Office national de radiodiffusion télévision française (ORTF), 1972.Harmonic brilliance and a rich, profound touch whose legendary phrasing has gone on to inspire every pianist (and jazz musician) ever since, Bill Evans is beyond platitudes. His music is often considered beyond description, even, something to be felt and savoured as in a physical and emotional sense, beyond mere words. Here, in 1972, in Paris, he takes the audience on an elegant, impressionistic adventure, starting with the very appropriately titled "Quiet Now." His place in the jazz pantheon was secured way back in 1959, when he was a central pillar in perhaps the most-loved jazz album of all time, Miles Davis' Kind of Blue. Yet, in the following years he cemented himself as a formidable leader and here plays in his favoured trio format alongside mainstay bandmates. Marty Morell is slick and perfect on the drums and Eddie Gomez is majestic on the double bass, having spent more than a decade bending his notes around Evans piano playing. The concert features Evan's famous takes on "Autumn Leaves" and "Someday My Prince Will Come."
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