Zobrazeno 1 - 10
of 49
pro vyhledávání: '"D. Wielandt"'
Autor:
N S, Saji, K, Larsen, D, Wielandt, M, Schiller, M M, Costa, M J, Whitehouse, M T, Rosing, M, Bizzarro
Publikováno v:
Geochemical perspectives letters
Tracking the secular evolution of 142Nd/144Nd anomalies is important towards understanding the crust-mantle dynamics in the early Earth. Excessive scatter in the published data, however, precludes identifying the fine structure of 142Nd/144Nd evoluti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::37e3dc4d8dd76fc9498b358580808059
https://pubmed.ncbi.nlm.nih.gov/33073040
https://pubmed.ncbi.nlm.nih.gov/33073040
Publikováno v:
Meteoritics and Planetary Science
Meteoritics and Planetary Science, Wiley, 2020, 55 (3), pp.575-590. ⟨10.1111/maps.13459⟩
van Kooten, E, Cavalcante, L & Bizzarro, M 2020, ' The role of Bells in the continuous accretion between the CM and CR chondrite reservoirs ', Meteoritics and Planetary Science, vol. 55, no. 3, pp. 575-590 . https://doi.org/10.1111/maps.13459
Meteoritics & Planetary Science
Meteoritics and Planetary Science, Wiley, 2020, 55 (3), pp.575-590. ⟨10.1111/maps.13459⟩
van Kooten, E, Cavalcante, L & Bizzarro, M 2020, ' The role of Bells in the continuous accretion between the CM and CR chondrite reservoirs ', Meteoritics and Planetary Science, vol. 55, no. 3, pp. 575-590 . https://doi.org/10.1111/maps.13459
Meteoritics & Planetary Science
CM meteorites are dominant members of carbonaceous chondrites (CCs), which evidently accreted in a region separated from the terrestrial planets. These chondrites are key in determining the accretion regions of solar system materials, since in Mg and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54e7e35bf8ff1b79c1114d822e90479a
https://hal-insu.archives-ouvertes.fr/insu-02619042/document
https://hal-insu.archives-ouvertes.fr/insu-02619042/document
Publikováno v:
Earth and Planetary Science Letters
Larsen, K K, Wielandt, D, Schiller, M, Krot, A N & Bizzarro, M 2020, ' Episodic formation of refractory inclusions in the Solar System and their presolar heritage ', Earth and Planetary Science Letters, vol. 535, 116088 . https://doi.org/10.1016/j.epsl.2020.116088
Earth and planetary science letters
Larsen, K K, Wielandt, D, Schiller, M, Krot, A N & Bizzarro, M 2020, ' Episodic formation of refractory inclusions in the Solar System and their presolar heritage ', Earth and Planetary Science Letters, vol. 535, 116088 . https://doi.org/10.1016/j.epsl.2020.116088
Earth and planetary science letters
Refractory inclusions [Ca-Al-rich Inclusions (CAIs) and Amoeboid Olivine Aggregates (AOAs)] in primitive meteorites are the oldest Solar System solids. They formed in the hot inner protoplanetary disk and, as such, provide insights into the earliest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::731edc12c63601bb706b0001f25d897c
Autor:
Jean-Alix Barrat, Frédéric Moynier, Ke Zhu, D. Wielandt, K. K. Larsen, Martin Schiller, Martin Bizzarro, Elishevah M. M. E. van Kooten
Publikováno v:
The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2020, 888 (2), pp.126. ⟨10.3847/1538-4357/ab5af7⟩
The Astrophysical Journal, American Astronomical Society, 2020, 888 (2), pp.126. ⟨10.3847/1538-4357/ab5af7⟩
We report on the mass-independent Cr isotope compositions of 11 main group ureilites and an ureilitic trachyandesite (ALM-A). The 54Cr/52Cr ratios for main group ureilites vary from −1.06±0.04 to −0.78±0.05 and averaged at −0.91±0.15 (2SD, N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d341b9f5c5ffecb36f16e6f24b281abf
Publikováno v:
Larsen, K K, Wielandt, D K P & Bizzarro, M 2018, ' Multi-element ion-exchange chromatography and high-precision MC-ICP-MS isotope analysis of Mg and Ti from sub-mm-sized meteorite inclusions ', Journal of Analytical Atomic Spectrometry, vol. 33, no. 4, pp. 613-628 . https://doi.org/10.1039/c7ja00392g
The analytical improvement of new generation mass spectrometers has reached a level required for high-precision isotope analysis of very small and unique natural samples. The multi-element isotopic signatures of meteorite inclusions can potentially p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::626e64a810029173e520327aa4b5317f
https://doi.org/10.1039/c7ja00392g
https://doi.org/10.1039/c7ja00392g
Publikováno v:
Zhu, K, Moynier, F, Wielandt, D, Larsen, K K, Barrat, J-A & Bizzarro, M 2019, ' Timing and Origin of the Angrite Parent Body Inferred from Cr Isotopes ', The Astrophysical Journal Letters, vol. 877, no. 1 . https://doi.org/10.3847/2041-8213/ab2044
Astrophysical Journal Letters (2041-8205) (Iop Publishing Ltd), 2019-05, Vol. 877, N. 1, P. L13 (8p.)
The Astrophysical journal letters
The Astrophysical journal letters, Bristol : IOP Publishing, 2019, 877 (1), pp.L13. ⟨10.3847/2041-8213/ab2044⟩
The Astrophysical journal letters, 2019, 877 (1), pp.L13. ⟨10.3847/2041-8213/ab2044⟩
The Astrophysical Journal
Astrophysical Journal Letters (2041-8205) (Iop Publishing Ltd), 2019-05, Vol. 877, N. 1, P. L13 (8p.)
The Astrophysical journal letters
The Astrophysical journal letters, Bristol : IOP Publishing, 2019, 877 (1), pp.L13. ⟨10.3847/2041-8213/ab2044⟩
The Astrophysical journal letters, 2019, 877 (1), pp.L13. ⟨10.3847/2041-8213/ab2044⟩
The Astrophysical Journal
Angrite meteorites are some of the oldest materials in the solar system. They provide important information on the earliest evolution of the solar system and accretion timescales of protoplanets. Here, we show that the 54Cr/52Cr ratio is homogeneousl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7e86b666f93f00ff4f61b5590992f80
https://curis.ku.dk/ws/files/226008972/Zhu_2019_ApJL_877_L13.pdf
https://curis.ku.dk/ws/files/226008972/Zhu_2019_ApJL_877_L13.pdf
Publikováno v:
Journal of Chromatography A. 1443:162-174
Chromatographic purification of chromium (Cr), which is required for high-precision isotope analysis, is complicated by the presence of multiple Cr-species with different effective charges in the acid digested sample aliquots. The differing ion excha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77fb790f13828931f5a1036714dc260d
https://doi.org/10.1016/j.chroma.2016.03.040
https://doi.org/10.1016/j.chroma.2016.03.040
Publikováno v:
Journal of Analytical Atomic Spectrometry. 31:1490-1504
We report novel techniques allowing the measurement of Nd-isotope ratios with unprecedented accuracy and precision by multi-collector inductively coupled plasma mass spectrometry. Using the new protocol, we have measured the Nd-isotopic composition o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::070589dd1e3071a11c458ad383d47ee6
https://doi.org/10.1039/c6ja00064a
https://doi.org/10.1039/c6ja00064a
Publikováno v:
Meteoritics and Planetary Science
Meteoritics and Planetary Science, Wiley, 2018, 54 (10), pp.2592-2599. ⟨10.1111/maps.13312⟩
Meteoritics & Planetary Science
Meteoritics and Planetary Science, Wiley, 2018, 54 (10), pp.2592-2599. ⟨10.1111/maps.13312⟩
Meteoritics & Planetary Science
International audience; The existence of mass-independent chromium isotope variability of nucleosynthetic origin in meteorites and their components provides a means to investigate potential genetic relationship between meteorites and planetary bodies
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7de8157980cbba43177b3dbc8ac51895
https://hal-insu.archives-ouvertes.fr/insu-02916850
https://hal-insu.archives-ouvertes.fr/insu-02916850
Autor:
Martin Schiller, Minik T. Rosing, Nikitha Susan Saji, Martin Bizzarro, K. K. Larsen, Martin J. Whitehouse, D. Wielandt, M. M. Costa
Publikováno v:
Saji, N S, Larsen, K, Wielandt, D, Schiller, M, Costa, M M, Whitehouse, M J, Rosing, M T & Bizzarro, M 2018, ' Hadean geodynamics inferred from time-varying 142 Nd/ 144 Nd in the early Earth rock record ', Geochemical Perspectives Letters, vol. 7, pp. 43-48 . https://doi.org/10.7185/geochemlet.1818
Tracking the secular evolution of 142Nd/144Nd anomalies is important towards\udunderstanding the crust-mantle dynamics in the early Earth. Excessive scatter in\udthe published data, however, precludes identifying the fine structure of\ud142Nd/144Nd e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c949219c87a8ccfda4cc1dd182b158a1