Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Michael A. Antonelli"'
Autor:
Michael A. Antonelli, Jillian Kendrick, Chris Yakymchuk, Martin Guitreau, Tushar Mittal, Frédéric Moynier
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Phase equilibrium modelling combined with Ca isotope measurements in ancient granitoids demonstrates that subduction of oceanic crust occurred repeatedly throughout the Archaean and that carbonate sediments were present in early Eoarchaean oceans (>3
Externí odkaz:
https://doaj.org/article/64cc4965e5dd4ca487e15df9967e323f
Autor:
Michael A. Antonelli, Andrea Giuliani, Zaicong Wang, Meiling Wang, Lian Zhou, Lanping Feng, Ming Li, Zhaofeng Zhang, Fang Liu, Russell N. Drysdale
Publikováno v:
Geochimica et Cosmochimica Acta, 348
Ca isotope geochemistry has great potential for improving our understanding of magmatic systems and for tracing the deep Earth carbon cycle. There are still many open questions, however, regarding the proper application of this relatively novel proxy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c9204a5cffee9b2a8ad787be74ad1e0
https://doi.org/10.1016/j.gca.2023.03.025
https://doi.org/10.1016/j.gca.2023.03.025
Autor:
James M. Watkins, Michael A. Antonelli
Publikováno v:
Elements. 17:383-388
Igneous and metamorphic rocks exhibit greater isotopic heterogeneity than expected from equilibrium. Large nonequilibrium isotope effects can arise from diffusion and chemical reactions, such as crystal growth and dissolution. The effects are time-de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c02422b9aab6947916c50c821dc442cb
https://doi.org/10.2138/gselements.17.6.383
https://doi.org/10.2138/gselements.17.6.383
Autor:
John N. Christensen, Michael A. Antonelli, Donald J. DePaolo, Olivier Bachmann, Jörn-Frederik Wotzlaw, Nicholas J. Pester
Publikováno v:
ACS Earth and Space Chemistry. 5:2481-2492
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3167976135fe295ba14cf9aa88d4c20e
https://doi.org/10.1021/acsearthspacechem.1c00179
https://doi.org/10.1021/acsearthspacechem.1c00179
Autor:
Barbara Tripoli, Martin Schiller, Michael A. Antonelli, Edward S. Grew, Thomas Chacko, Tushar Mittal, Donald J. DePaolo, Edwin A. Schauble
Publikováno v:
Earth and Planetary Science Letters
Earth and Planetary Science Letters, Elsevier, 2019, 517, pp.71-82. ⟨10.1016/j.epsl.2019.04.013⟩
Earth and Planetary Science Letters, Elsevier, 2019, 517, pp.71-82. ⟨10.1016/j.epsl.2019.04.013⟩
Calcium isotope data ( δ 44 Ca , μ 42 / 44 Ca , and μ 48 / 44 Ca ) are reported for high-temperature metamorphic rocks and minerals, and compared with density-functional theory (DFT) estimates of equilibrium Ca isotope fractionation factors for pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3480e79ca8589270b47d683561c047ba
https://doi.org/10.1016/j.epsl.2019.04.013
https://doi.org/10.1016/j.epsl.2019.04.013
Publikováno v:
Antonelli, M. A.; De Paolo, D. J.; Chacko, T.; Grew, E. S.; Rubatto, Daniela (2019). Radiogenic Ca isotopes confirm post-formation K depletion of lower crust. Geochemical perspectives letters, 9, pp. 43-48. European Association of Geochemistry 10.7185/geochemlet.1904
Heat flow studies suggest that the lower crust has low concentrations of heat-producing elements. This could be due to either (i) greater fractions of basaltic rock at depth or (ii) metamorphic depletion of radioactive elements from rocks with more e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8939e7fe516e6a615fed70ee04c01dd
https://doi.org/10.7185/geochemlet.1904
https://doi.org/10.7185/geochemlet.1904
Autor:
Martin Guitreau, Jillian Kendrick, Tushar Mittal, Chris Yakymchuk, Frédéric Moynier, Michael A. Antonelli
Publikováno v:
Goldschmidt2021 abstracts.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5782c9e5c8c7f159ae46c6f1fd0698fd
https://doi.org/10.7185/gold2021.8003
https://doi.org/10.7185/gold2021.8003
Autor:
Frédéric Moynier, Simon Turner, Roger S. Chung, Arne Lund Jørgensen, Mette Habekost, Michael A. Antonelli, Brandon Mahan, Pierre Burckel
Publikováno v:
Mahan, B, Antonelli, M A, Burckel, P, Turner, S, Chung, R, Habekost, M, Jørgensen, A L & Moynier, F 2020, ' Longitudinal biometal accumulation and Ca isotope composition of the Göttingen minipig brain ', Metallomics : integrated biometal science, vol. 12, no. 10, pp. 1585-1598 . https://doi.org/10.1039/d0mt00134a
Biometals play a critical role in both the healthy and diseased brain's functioning. They accumulate in the normal aging brain, and are inherent to neurodegenerative disorders and their associated pathologies. A prominent example of this is the brain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34bf66f4645de15310288152c8642ba4
https://pure.au.dk/portal/da/publications/longitudinal-biometal-accumulation-and-ca-isotope-composition-of-the-goettingen-minipig-brain(a7467086-fba6-4147-872f-73ffcd129515).html
https://pure.au.dk/portal/da/publications/longitudinal-biometal-accumulation-and-ca-isotope-composition-of-the-goettingen-minipig-brain(a7467086-fba6-4147-872f-73ffcd129515).html
Autor:
Tushar Mittal, Anders McCarthy, Barbara Tripoli, James M. Watkins, Michael A. Antonelli, Donald J. DePaolo
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2019, 116 (41), pp.20315-20321. ⟨10.1073/pnas.1908921116⟩
Proceedings of the National Academy of Sciences of the United States of America, vol 116, iss 41
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2019, 116 (41), pp.20315-20321. ⟨10.1073/pnas.1908921116⟩
Proceedings of the National Academy of Sciences of the United States of America, vol 116, iss 41
International audience; Kinetic calcium isotope effects can be used as growth-rate proxies for volcanic and subvolcanic minerals. Here, we analyze Ca isotopic compositions in experimental and natural samples and confirm that large kinetic effects (>2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb479219b0e8dcbab395376e55e8f350
https://hal-insu.archives-ouvertes.fr/insu-02558381/file/20315.full.pdf
https://hal-insu.archives-ouvertes.fr/insu-02558381/file/20315.full.pdf
Autor:
Michael A. Antonelli, Justin I. Simon
Publikováno v:
Chemical Geology
Chemical Geology, Elsevier, 2020, 548, pp.119651. ⟨10.1016/j.chemgeo.2020.119651⟩
Chemical Geology, Elsevier, 2020, 548, pp.119651. ⟨10.1016/j.chemgeo.2020.119651⟩
International audience; This chapter explores the growing body of stable and radiogenic Ca isotope measurements in high temperature terrestrial materials and covers the emerging applications for Ca isotope variability in igneous and metamorphic rocks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7abfe3657818b7e660b683c0507d3a6d
https://doi.org/10.1016/j.chemgeo.2020.119651
https://doi.org/10.1016/j.chemgeo.2020.119651