[PDF] Top 20 The composition and origin of tektites
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The composition and origin of tektites
... The first question to be asked is, does the variation of Sr87/Sr 86 ratios in tektites correspond with the variation.. one would expect by the random fusion of terre[r] ... Voir le document complet
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Isotopic composition and origin of polar precipitation in present and glacial climate simulations
... Left: the definition of 14 di fferent source regions of water vapor for the present-day ...source of water vapor (I: Eurasia, J: Africa, K: Australia, L: North America, M: South ... Voir le document complet
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Implications for behavior of volatile elements during impacts - Zinc and copper systematics in sediments from the Ries impact structure and central European tektites
... J. and Coles B. J. 2005. Zn and Cu isotopic variability in the Alexandrinka volcanic-hosted massive sulphide (VHMS) ore deposit, Urals, ...J. and Hart G. 2009. Exploration potential of ... Voir le document complet
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Rubidium isotopic composition of the Earth, meteorites, and the Moon: Evidence for the origin of volatile loss during planetary accretion
... where the 0 superscript indicates the unfractionated material and F is the fraction of initial 85 Rb left in the ...If the isotopic frac- tionation factor, α , is taken to ... Voir le document complet
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Astrobiology : origin, evolution and distribution of life in the universe
... Astrobiology: origin, evolution and distribution of life in the ...University of Liège (ej.javaux@ulg.ac.be) Astrobiology studies the origin, evolution, distribution ... Voir le document complet
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Origin and Evolution of Rickettsial Plasmids
... hosts. The genus Rickettsia emerged approxi- mately 150 million years ago after several transitions from a presumably free-living ancestor of Rickettsiales to an intracellular life and then to ... Voir le document complet
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On the Origin of Abstraction : Real and Imaginary Parts of Decidability-Making
... imitation and uniformity, that is, symmetry 1 ...understand the cognitive processes by which decision-makers (consumers, managers, ...choices and design innovatively. A theoretical understanding ... Voir le document complet
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Spontaneous R-parity violation and the origin of neutrino mass
... on the phenomenology associated with the decays of the lightest neutral fermion, and how we can extract information connected to neutrino physics, for different scenarios: (i) a ... Voir le document complet
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Quasidegeneracy of Majorana Neutrinos and the Origin of Large Leptonic Mixing
... that the observed large mixing in the lepton sector may just reflect a Majorana character of neutrinos and quasidegeneracy of neutrino ...in the limit of exact neutrino ... Voir le document complet
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The δ53Cr isotope composition of komatiite flows and implications for the composition of the bulk silicate Earth
... studies of komatiites show that there is no detectable dif- ferences between the average Cr isotope composition of komatiites and that of mantle peridotites ( Sossi et ...when ... Voir le document complet
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The origin of tones in Vietnamese
... up of two elements, height and contour. Height depended on the initial, while contour depended at least to some extent on the ...quality and duration were ...heights and four ... Voir le document complet
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On the Origin and Evolution of the Material in 67P/Churyumov-Gerasimenko
... Nevertheless, the deviations from V-CDT in the 81P/Wild 2 data are small compared to the observations in 67P/C-G, pointing to either different processes and/or efficiencies in the ... Voir le document complet
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A new scenario for the evolutionary origin of hair, feather, and avian scales.: Origin of hair, feather and avian scales
... by the successive utilization of the same BMP2/ Shh module for the building of the different components of the modern feather (Harris et ...in the activation ... Voir le document complet
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The Origin and development of Canada's objective-based codes concept
... on the acceptable solutions outlined in Division B, which includes the technical provisions of the existing codes, should experience little change from the way they use the codes ... Voir le document complet
12
The Bathymetry and Composition of Titan’s Lakes and Seas
... thane and ethane. Nitriles, like hydrogen cyanide (HCN) and acetonitrile (C 2 H 3 N), are likely quite ab- sorptive and even minor concentrations may affect the loss ...Once the complex ... Voir le document complet
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Two-stage opening of the Dover Strait and the origin of island Britain
... erosion of the Lobourg Channel was achieved by high-magnitude flood flows through the ...into the late Quaternary landscape evolution of the Dover Strait with implications for ... Voir le document complet
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The AMBRE Project: Origin and evolution of sulfur in the Milky Way
... from the three main components of the multiplet 8 system lines found around 675 nm, which are known to be poorly affected by NLTE e ...from the ESO archives of the HARPS, FEROS, ... Voir le document complet
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The origin of the complex character of the ohmic impedance
... case, the value is independent of the radial position. The observation that the local Ohmic impedance has a complex value, even on the electrode axis, where, for reasons ... Voir le document complet
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Geochemical Constraints on the Origin of the Moon and Preservation of Ancient Terrestrial Heterogeneities
... 5: The Earth and the Moon are very similar in a range of isotopes that trace the origin of planetary materials (non-mass dependent stable isotope ratios that vary due to ... Voir le document complet
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Centaur shapes and the origin of bilobate Jupiter-family comets
... Master of Science in Earth, Atmospheric, and Planetary Sciences ABSTRACT The bilobate shape distribution of Jupiter-family comets (JFCs) is of unconstrained ...in the Centaur ... Voir le document complet
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