Výsledky vyhledávání - "Romain Tilhac"

Akademický článek

Slab melting boosts the mantle wedge contribution to Li-rich magmas

Autor: Erwin Schettino, Igór González-Pérez, Claudio Marchesi, José María González-Jiménez, Michel Grégoire, Romain Tilhac, Fernando Gervilla, Idael F. Blanco-Quintero, Alexandre Corgne, Manuel E. Schilling

Publikováno v: Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)

Abstract The lithium cycling in the supra-subduction mantle wedge is crucial for understanding the generation of Li-rich magmas that may potentially source ore deposition in continental arcs. Here, we look from the mantle source perspective at the ge

Externí odkaz: https://doaj.org/article/0cea0a613a6849be8af3cf64ad53dbb6

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Akademický článek

Evidence of ghost plagioclase signature induced by kinetic fractionation of europium in the Earth’s mantle

Autor: Romain Tilhac, Károly Hidas, Beñat Oliveira, Carlos J. Garrido

Publikováno v: Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)

Researchers found natural evidence of kinetic Eu anomalies caused by melt-induced diffusion in mantle peridotite clinopyroxene, providing an alternative to crustal recycling for the enigmatic ghost plagioclase signatures in oceanic basalts.

Externí odkaz: https://doaj.org/article/5ffebf1c1ee547d3b6092a00fbbdac50

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A Rosetta stone linking melt trajectories in the mantle to the stress field and lithological heterogeneities (Trinity ophiolite, California)

Autor: Georges Ceuleneer, Mathieu Rospabé, Tom Chatelin, Hadrien Henry, Romain Tilhac, Mary-Alix Kaczmarek, Elisabeth le Sueur

Publikováno v: Geology (0091-7613) (Geological Society of America), 2022-10, Vol. 50, N. 10, P. 1192-1196

Infiltration triggered by selective dissolution of pyroxenes is a major mode of melt migration in the mantle. A common view, supported by experiments and numerical models, is that the geometry of the melt plumbing system is governed by the stress fie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0972e4ab03568a1b878b88dccacb0e3e
https://archimer.ifremer.fr/doc/00795/90728/

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A global review of Hf-Nd isotopes: New perspectives on the chicken-and-egg problem of ancient mantle signatures

Autor: Romain Tilhac, Graham C. Begg, Suzanne Y. O'Reilly, William L. Griffin

Acknowledgements We are grateful to T. Morishita and C.J. Garrido for their support during the laborious elaboration of the database and writing of the manuscript. We thank A. Sanfilippo for providing data for the individual MOR segments. Constructiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa0517eaadcb9ce1565ff7208e967f93
https://hdl.handle.net/10481/76995

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Derivation of Hawaiian rejuvenated magmas from deep carbonated mantle sources: A review of experimental and natural constraints

Autor: Anastassia Y. Borisova, Romain Tilhac

Publikováno v: Earth-Science Reviews
Earth-Science Reviews, Elsevier, 2021, 222, ⟨10.1016/j.earscirev.2021.103819⟩
Earth-Science Reviews, 2021, 222, ⟨10.1016/j.earscirev.2021.103819⟩
Earth-Science Reviews, Elsevier, 2021, pp.103819. ⟨10.1016/j.earscirev.2021.103819⟩

The role of carbon-rich or carbonatitic melts as an important metasomatizing agent in the Earth's mantle is supported by direct and indirect evidence of their involvement, ranging from the presence of erupted carbonatitic lavas to metasomatic reactio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ad1dfd0a438ca24813845a3584d9d8e
https://hal.archives-ouvertes.fr/hal-03407757/document

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Geodynamic evolution of the Tethyan lithosphere as recorded in the Spontang Ophiolite, South Ladakh ophiolites (NW Himalaya, India)

Autor: Romain Tilhac, Shivani Harshe, Michel Grégoire, Mathieu Benoit, Mallika K. Jonnalagadda, Raymond A. Duraiswami, N. R. Karmalkar

Publikováno v: Geoscience Frontiers
Geoscience Frontiers, Elsevier, 2022, 13 (1), pp.101297. ⟨10.1016/j.gsf.2021.101297⟩
Geoscience Frontiers, Elsevier, In press, pp.101297. ⟨10.1016/j.gsf.2021.101297⟩
Geoscience Frontiers, 2022, 13 (1), pp.101297. ⟨10.1016/j.gsf.2021.101297⟩
Geoscience Frontiers, Vol 13, Iss 1, Pp 101297-(2022)
Digibug. Repositorio Institucional de la Universidad de Granada
instname

The authors thank the Head, Department of Geology and Inter-disciplinary School of Science (IDSS) , SPPU for providing necessary facilities. MKJ acknowledges the financial support received from Science Education and Research Board (SERB) and Departme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe14186223e163d7d1b4d43a38aaf38c
http://hdl.handle.net/10481/72291

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Optimizing subsampling strategies for U/Th dating and geochemical proxies in carbonate speleothems

Autor: Christine Perrin, Laurent Prestimonaco, Romain Tilhac

Publikováno v: Sedimentary Geology
Sedimentary Geology, Elsevier, 2019, 389, pp.91-102. ⟨10.1016/j.sedgeo.2019.06.002⟩

International audience; Since they provide the chronological frame on which paleoclimate and paleoenvironmental reconstructions are built, radiometric ages of carbonate speleothems, especially U/Th dating, are of fundamental importance to speleothem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47e3eb61d39fa4f846e879f08345820a
https://doi.org/10.1016/j.sedgeo.2019.06.002

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Late Cretaceous subduction-related magmatism on the southern edge of Sabzevar basin, NE Iran

Autor: Hadi Shafaii Moghadam, Habibollah Ghasemi, Romain Tilhac, Zakie Kazemi, William L. Griffin, Suzanne Y. O'Reilly, Fardin Mousivand

Publikováno v: Journal of the Geological Society. 176:530-552

Despite detailed geological studies on the Late Cretaceous Sabzevar ophiolites, the non-ophiolitic, subduction-related igneous rocks of NE Iran are still enigmatic. This paper focuses on the Late Cretaceous, non-ophiolitic Sabzevar magmatic rocks, an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::433e91b00019f7f24472a84179b20a82
https://doi.org/10.1144/jgs2018-076

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The microstructure of layered ultramafic cumulates: Case study of the Bear Creek intrusion, Trinity ophiolite, California, USA

Autor: Romain Tilhac, Elisabeth Le Sueur, Hadrien Henry, Suzanne Y. O'Reilly, Michel Grégoire, Mary-Alix Kaczmarek, William L. Griffin, Georges Ceuleneer

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Lithos
Lithos, 2021, 388, ⟨10.1016/j.lithos.2021.106047⟩

In the Trinity ophiolite, California, USA, several mafic-ultramafic plutons intruded a peridotitic host 435 to 405 m.y. ago in a tectonic setting interpreted as an arc-related spreading centre. One of these intrusions, in the Bear Creek area, exposes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8d0e939520905135c0abc02859fcc56
http://hdl.handle.net/10261/262029

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Prolonged magmatism and growth of the Iran-Anatolia Cadomian continental arc segment in Northern Gondwana

Autor: Robert J. Stern, H. Shafaii Moghadam, Qiu-Li Li, Federico Lucci, Romain Tilhac, William L. Griffin, José Francisco Santos, M. Beyarslan, A. Ravankhah, Ghasem Ghorbani, Suzanne Y. O'Reilly

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Digital.CSIC. Repositorio Institucional del CSIC
instname

Much of the crust of Iran and Anatolia, including their oldest exposed rocks, formed during an episode of intense convergent margin (arc) magmatism as a result of subduction of oceanic lithosphere beneath northern Gondwana from ca 620 Ma to ca 500 Ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d99b9a3a50f5017cc136aef0adab892

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