Treatise on Geochemistry. Meteorites, Comets and Planets by Davis A.M. (ed.), Holland H.D. (ed.), Turekian K.K. (ed.)

By Davis A.M. (ed.), Holland H.D. (ed.), Turekian K.K. (ed.)

The Treatise on Geochemistry is the 1st paintings offering a finished, built-in summarry of the current kingdom of geochemistry. It bargains with all of the significant matters within the box, starting from the chemistry of the sun procedure to environmental geochemistry. The Treatise on Geochemistry has drawn at the services of remarkable scientists during the international, growing the reference paintings in geochemistry for the subsequent decade.Each quantity comprises fifteen to 25 chapters written by way of well-known gurus of their fields, and selected by way of the quantity Editors in session with the administrative Editors. specific emphasis has been put on integrating the subject material of the person chapters and volumes.Elsevier additionally bargains the Treatise on Geochemistry in digital layout through the net platform ScienceDirectR, the main entire database of educational examine on the net at the present time, more suitable through a set of refined linking, looking and retrieval instruments.

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Nature 345, 238–240. , and Lewis R. S. (1992) Interstellar SiC with unusual isotopic compositions: grains from a supernova? Astrophys. J. 394, L43 –L46. , Lewis R. , and Anders E. (1994) Interstellar grains in meteorites: I. Isolation of SiC, graphite, and diamond: size distributions of SiC and graphite. Geochim. Cosmochim. Acta 58, 459–470. , and Lewis R. S. (1995a) Traceelement concentrations in single circumstellar silicon carbide grains from the Murchison meteorite. Meteoritics 30, 679 –693.

2002). 29 Most of them have normal isotopic compositions. , 2002). , 1995b). Subsequent isotopic measurements of individual grains revealed anomalies in many different elements. , 1995). , 1994). , 1995). , 1995): dense aggregates of small scales (“cauliflowers,” Figure 2(b)) and grains with smooth or shell-like platy surfaces (“onions,” Figure 2(c)). , 1991, 1996) found the surface morphology reflected in the internal structure of the grains. Cauliflowers consist of concentrically packed scales of poorly crystallized carbon, whereas onions either consist of wellcrystallized graphite throughout or of a core of tightly packed graphene sheets of only several atomic layers surrounded by a mantle of wellcrystallized graphite.

2002). , 2002; Nittler and Alexander, 2003). , large 15N and 28Si excesses and high 26 Al/27Al ratios (Figure 12). Although so far no resolvable 44Ca excesses have been detected (Besmehn and Hoppe, 2001), the similarity with X grains implies an SN origin for these grains. , 2002). 29 Most of them have normal isotopic compositions. , 2002). , 1995b). Subsequent isotopic measurements of individual grains revealed anomalies in many different elements. , 1995). , 1994). , 1995). , 1995): dense aggregates of small scales (“cauliflowers,” Figure 2(b)) and grains with smooth or shell-like platy surfaces (“onions,” Figure 2(c)).

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