Zobrazeno 1 - 10
of 21
pro vyhledávání: '"F. A. Koga"'
Autor:
Mike Burton, Alessandro Aiuppa, Patrick Allard, María Asensio-Ramos, Ana Pardo Cofrades, Alessandro La Spina, Emma J. Nicholson, Vittorio Zanon, José Barrancos, Marcello Bitetto, Margaret Hartley, Jorge E. Romero, Emma Waters, Alex Stewart, Pedro A. Hernández, João Pedro Lages, Eleazar Padrón, Kieran Wood, Benjamin Esse, Catherine Hayer, Klaudia Cyrzan, Estelle F. Rose-Koga, Federica Schiavi, Luca D’Auria, Nemesio M. Pérez
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-10 (2023)
Abstract Alkaline mafic magmas forming intra-plate oceanic islands are believed to be strongly enriched in CO2 due to low-degree partial melting of enriched mantle sources. However, until now, such CO2 enhancement has not been verified by measuring C
Externí odkaz:
https://doaj.org/article/4319823385d94009a011b7ec2d2076c5
Autor:
Yves Moussallam, Guillaume Georgeais, Estelle F. Rose‐Koga, Kenneth T. Koga, Margaret E. Hartley, Bruno Scaillet, Clive Oppenheimer, Nial Peters
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 24, Iss 12, Pp n/a-n/a (2023)
Abstract The behavior of Fe3+ during mantle partial melting strongly influences the oxidation state of the resulting magmas, with implications for the evolution of the atmosphere's oxidation state. Here, we challenge a prevailing view that low‐degr
Externí odkaz:
https://doaj.org/article/02f4baa26ab44e0c87937be6b4e22ac4
Publikováno v:
Frontiers in Earth Science, Vol 9 (2022)
Chlorine isotopes have emerged as a new geochemical tool over the past 15 years. Most of the data consist of bulk rock data, with a minority carried out in situ on melt inclusions using secondary ion mass spectrometry. More data are necessary to unde
Externí odkaz:
https://doaj.org/article/74a224283b0b4b12a8ff197a4b7320bf
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 22, Iss 7, Pp n/a-n/a (2021)
Abstract Magma decompression rate is one of the most important parameters in controlling eruption dynamics. One way to determine decompression rate is by fitting a volatile elements diffusion profile to a concentration gradient in crystal‐hosted em
Externí odkaz:
https://doaj.org/article/06b90c09c4964450b18c941ea4c69815
Autor:
O. E. Anderson, M. G. Jackson, E. F. Rose‐Koga, J. P. Marske, M. E. Peterson, A. A. Price, B. L. Byerly, A. A. Reinhard
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 22, Iss 4, Pp n/a-n/a (2021)
Abstract Melt inclusions with large, positive Sr anomalies have been described in multiple tectonic settings, and the origins of this unusual geochemical feature are debated. Three origins have been proposed, all involving plagioclase as the source o
Externí odkaz:
https://doaj.org/article/de74343789d34577a8aeeb6ebe586e79
Autor:
Francesco Maria Lo Forte, Alessandro Aiuppa, Federica Schiavi, Estelle F. Rose-Koga, Silvio G. Rotolo, Vittorio Zanon
Understanding the pre-eruptive volatile contents in magmas is critical to charactering the magmatic plumbying systems that feed acative volcanoes, and is key to volcano monitoring and volcanic hazard assessment. Silicate melt inclusions (MIs) hosted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9c4cb12b1356f271b267a8b3c9cff34
https://doi.org/10.5194/egusphere-egu23-2783
https://doi.org/10.5194/egusphere-egu23-2783
Autor:
Shengping Qian, Vincent Salters, Alex J. McCoy-West, Jonny Wu, Estelle F. Rose-Koga, Alexander R.L. Nichols, Le Zhang, Huaiyang Zhou, Kaj Hoernle
Publikováno v:
Earth and Planetary Science Letters
Earth and Planetary Science Letters, 2022, 593, ⟨10.1016/j.epsl.2022.117679⟩
Earth and Planetary Science Letters, 2022, 593, ⟨10.1016/j.epsl.2022.117679⟩
International audience; Geochemical heterogeneities observed in the mantle are usually attributed to recycling of oceanic lithosphere through subduction. However, it remains hotly debated where recycled material stagnates, and how quickly it can be l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11b3eb6d8622a5ec88bfdb70af388a20
https://doi.org/10.1016/j.epsl.2022.117679
https://doi.org/10.1016/j.epsl.2022.117679
Autor:
Masataka Kawaguchi, Kenneth T Koga, Estelle F Rose-Koga, Kenji Shimizu, Takayuki Ushikubo, Akira Yoshiasa
Publikováno v:
Journal of Petrology
Journal of Petrology, 2022, 63 (7), ⟨10.1093/petrology/egac061⟩
Journal of Petrology, 2022, 63 (7), ⟨10.1093/petrology/egac061⟩
Sulfur is a minor element in magmas but one of the major volatile elements released in volcanic systems, from the magma to the fluid phase upon ascent. Not only are sulfur gasses potentially toxic for humans and plants, they are also involved in caus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea7746ec2f82f04fccdf336fe61b5c19
https://hal.science/hal-03852651/document
https://hal.science/hal-03852651/document
Publikováno v:
Earth and Planetary Science Letters
Earth and Planetary Science Letters, 2022, 592, ⟨10.1016/j.epsl.2022.117638⟩
Earth and Planetary Science Letters, vol. 592, pp. 117638
Earth and Planetary Science Letters, 2022, 592, ⟨10.1016/j.epsl.2022.117638⟩
Earth and Planetary Science Letters, vol. 592, pp. 117638
co-auteur étranger; International audience; Melt inclusions are often used to infer melting processes or to determine source magmas that are usually overprinted in bulk rocks due to late stage mixing or near surface contamination. Here we present th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f9ae03b63414352a0e37a1cf977bd28
https://hal-insu.archives-ouvertes.fr/insu-03708893/document
https://hal-insu.archives-ouvertes.fr/insu-03708893/document
Autor:
Kenneth T. Koga, Estelle F. Rose-Koga
Publikováno v:
Encyclopedia of Earth Sciences Series ISBN: 9783319393117
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cf54244cae30208d190c1525d8f997d
https://doi.org/10.1007/978-3-319-39312-4_102
https://doi.org/10.1007/978-3-319-39312-4_102