Zobrazeno 1 - 10
of 544
pro vyhledávání: '"H, Tissot"'
Autor:
Jonathan Gomez Barrientos, Katherine de Kleer, Bethany L. Ehlmann, Francois L. H. Tissot, Jessica Mueller
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 1, p L11 (2024)
Ground-based observations of “Barbarian” L-type asteroids at 1–2.5 μ m indicate that their near-infrared spectra are dominated by the mineral spinel, which has been attributed to a high abundance of calcium-aluminum inclusions (CAIs)—the fir
Externí odkaz:
https://doaj.org/article/9940ffd1df854bf99d4e0c4b2c9a1dfa
Publikováno v:
The Astrophysical Journal Letters, Vol 961, Iss 1, p L15 (2024)
The discovery of extreme strontium isotope anomalies ( μ ^84 Sr) in refractory leachates from Allende fine-grained calcium-aluminum-rich inclusions (CAIs) is at odds with long-standing predictions regarding the homogenization of presolar components
Externí odkaz:
https://doaj.org/article/c6915620b2d54f81beb5a4c00f0a89a8
Autor:
I. P. Baziotis, C. Ma, Y. Guan, L. Ferrière, S. Xydous, J. Hu, M. A. Kipp, F. L. H. Tissot, P. D. Asimow
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-15 (2022)
Abstract Meteorites preserve evidence of processes on their parent bodies, including alteration, metamorphism, and shock events. Here we show that the Kakowa (L6) ordinary chondrite (OC) preserves both shock-melt veins and pockets of detrital grains
Externí odkaz:
https://doaj.org/article/2a17c3e3c3a143bd818ab814b275d5da
Publikováno v:
The Astrophysical Journal Letters, Vol 954, Iss 1, p L27 (2023)
The recent advent of nontraditional isotopic systems has revealed that meteorites display a fundamental isotopic dichotomy between noncarbonaceous (NC) and carbonaceous (C) groups, which represent material from the inner and outer solar system, respe
Externí odkaz:
https://doaj.org/article/e28033706b4b4912bfc326d13c26d34e
Publikováno v:
Meteoritics & Planetary Science. 57:1300-1324
Akademický článek
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Autor:
A. Voisin, C. Dhiver, C. Boschi, A. Ménard, C. Toméi, I. Ravaux, S. Mokhtari, A. Motte, H. Tissot-Dupont, P. Colson
Publikováno v:
Médecine et Maladies Infectieuses Formation. 2:S160-S161
Publikováno v:
Journal of Analytical Atomic Spectrometry. 37:2005-2021
We provide critical new insights into the nature and origin of a widespread isotope effect for W: it is inconsistent with a nuclear field shift, induced during the chemical separation procedure, and also controlled by the amount of W processed.
Publikováno v:
Elements. 17:389-394
Stable isotopes provide deep insights into processes across a wide range of scales, from micron- to cosmic-size systems. Here, we review how continued advances in mass-spectrometry have enabled the analysis of ever-smaller samples and brought the fie
Autor:
Pieter Z. Vroon, Martijn Klaver, Marc-Alban Millet, François L. H. Tissot, Mauricio Ibanez-Mejia, Scott A. Maclennan
Publikováno v:
Klaver, M, MacLennan, S A, Ibañez-Mejia, M, Tissot, F L H, Vroon, P Z & Millet, M A 2021, ' Reliability of detrital marine sediments as proxy for continental crust composition : The effects of hydrodynamic sorting on Ti and Zr isotope systematics ', Geochimica et Cosmochimica Acta, vol. 310, pp. 221-239 . https://doi.org/10.1016/j.gca.2021.05.030
Geochimica et Cosmochimica Acta, 310, 221-239. Elsevier Limited
Geochimica et Cosmochimica Acta, 310, 221-239. Elsevier Limited
The isotopic composition of the detrital sediment record harbours a valuable proxy for estimating the composition of the erodible upper crust since the Archaean. Refractory elements such as titanium (Ti) and zirconium (Zr) can display systematic vari