Výsledky vyhledávání - "Stéphanie Duchêne"

First U-Pb LA-ICP-MS in situ dating of supergene copper mineralization: Case study in Chuquicamata mining district, Atacama Desert, Chile

Autor: Rodrigo Riquelme, Marc Poujol, Sébastien Carretier, François-Xavier d'Abzac, Mathieu Leisen, Stéphanie Brichau, Zia Steven Kahou, Eduardo Campos, Stéphanie Duchêne

Publikováno v: Mineralium Deposita
Mineralium Deposita, 2021, 56 (2), pp.239-252. ⟨10.1007/s00126-020-00960-2⟩
Mineralium Deposita, Spinger, In press, ⟨10.1007/s00126-020-00960-2⟩
Mineralium Deposita, Spinger, 2021, 56 (2), pp.239-252. ⟨10.1007/s00126-020-00960-2⟩

Since the second half of the twentieth century, exotic copper mineralization represents a prime target for many mining exploration companies operating in the hyperarid Atacama Desert, in northern Chile. Although there is evidence that the emplacement

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ee8ba22b0bce08422b3742d31eb8241
https://insu.hal.science/insu-02472761

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Mineralogical and chemical characterization of supergene copper-bearing minerals: examples from Chile and Burkina Faso

Autor: Rodrigo Riquelme, Mathieu Leisen, Philippe de Parseval, Stéphanie Brichau, Marc Poujol, Sandrine Choy, Eduardo Campos, Janogithan Kathirgamar, Sébastien Carretier, Zia Steven Kahou, Hugo Testa, Guillaume Estrade, Stéphanie Duchêne

Publikováno v: Ore Geology Reviews
Ore Geology Reviews, Elsevier, 2021, 133, pp.104078. ⟨10.1016/j.oregeorev.2021.104078⟩
Ore Geology Reviews, 2021, 133, pp.104078. ⟨10.1016/j.oregeorev.2021.104078⟩

International audience; Using optical microscopy, SEM, EPMA and LA-ICP-MS, we analyzed and characterized the textural features of Cenozoic supergene Cu-bearing minerals from three exotic and two in situ supergene copper mineralization from the Atacam

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31408644bbaa5671a4ccade597daa2ae
https://hal-insu.archives-ouvertes.fr/insu-03161892/document

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Integrated study of supergene copper deposits from Atacama Desert, Northern Chile: coupled petro-geochemical approach and U-Pb LA-ICP-MS in situ dating

Autor: Zia Steven Victoire Jonathan Kahou, Stephanie Brichau, Stéphanie Duchêne, Marc Poujol, Eduardo Campos

Publikováno v: European geosciences Union General Assembly
European geosciences Union General Assembly, European geosciences Union, May 2020, Online, Austria. pp.EGU2020-18257
HAL

International audience; Supergene copper mineralization (SCM) are nowadays the economic viability of many porphyry copper deposits worldwide. These mineralization are derived from supergene processes, defined by Ransome (1912) as sulfide oxidation an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::529b9591fdd9961c3fc7ea6223a8d561
https://hal-insu.archives-ouvertes.fr/insu-02573053

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U-Pb in situ dating and trace elements profiles in chrysocolla and pseudomalachite : Application to supergene copper mineralization

Autor: Stéphanie Duchêne, Mathieu Leisen, Stéphanie Brichau, François-Xavier d'Abzac, Zia Steven Kahou, Sandrine Choy

Over the past two decades, laser ablation coupled with the mass spectrometer has become a major analytical tool for the measurement of isotopic ratios and the determination of trace elements. The improvement of the sensitivity has provided new perspe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7cfc69a736561ed66e0fda349e89ed13
https://doi.org/10.5194/egusphere-egu2020-20802

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Integrated study of supergene copper deposits from Atacama Desert, Northern Chile: coupled petro-geochemical approach and U-Pb LA-ICP-MS in situ dating

Autor: Stéphanie Duchêne, Marc Poujol, Sébastien Carretier, Sandrine Choy, Mathieu Leisen, Philippe de Parseval, Eduardo Campos, Zia Steven Kahou, Rodrigo Riquelme, Stéphanie Brichau, François-Xavier d'Abzac

Supergene copper mineralization (SCM) are nowadays the economic viability of many porphyry copper deposits worldwide. These mineralization are derived from supergene processes, defined by Ransome (1912) as sulfide oxidation and leaching of ore deposi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e97b435611b36f84bba357eb0e2ac73d
https://doi.org/10.5194/egusphere-egu2020-18257

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Pressure-temperature conditions and significance of Upper Devonian eclogite and amphibolite facies metamorphisms in southern French Massif central

Autor: Olivier Bruguier, Jean-Marc Baele, Hervé Diot, Antoine Triantafyllou, Anissa Benmammar, Julien Berger, Stéphanie Duchêne, Abderrahmane Bendaoud

Publikováno v: Bulletin de la Société Géologique de France
Bulletin de la Société Géologique de France, Société géologique de France, 2020, 191, pp.28. ⟨10.1051/bsgf/2020033⟩
BSGF-Earth Sciences Bulletin, Vol 191, p 28 (2020)
Bulletin de la Société Géologique de France, 2020, 191, pp.28. ⟨10.1051/bsgf/2020033⟩

International audience; The southwestern French Massif central in western Rouergue displays an inverted metamorphic sequence with eclogite and amphibolite facies units forming the top of the nappe stack. They are often grouped into the leptyno-amphib

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39cc08d344b0985dd6d5022732a71033
https://hal-insu.archives-ouvertes.fr/insu-03188968

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Secular cooling and crystallization of partially molten Archaean continental crust over 1 Ga

Autor: Célia Guergouz, Olivier Vanderhaeghe, David Baratoux, Stéphanie Duchêne, Cécile Fabre

Publikováno v: Comptes Rendus. Géoscience
Comptes Rendus. Géoscience, Académie des sciences (Paris), 2019, 351, pp.562-573. ⟨10.1016/j.crte.2019.07.002⟩
Comptes Rendus. Géoscience, 2019, 351, pp.562-573. ⟨10.1016/j.crte.2019.07.002⟩

The protracted tectonic and magmatic record of cratons over the Archaean Eon has been classically interpreted in terms of long-lived shallow-dipping subduction or repeated mantle plumes. In this paper, we use the 1D conductive heat equation to model

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c8f393c3e3c962b635fb1ba1b8b9218
https://hal.archives-ouvertes.fr/hal-03489104

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