Výsledky vyhledávání - "Yumi Kitayama"

Geochemical evidence for carbon and chlorine enrichments in the mantle source of kimberlites (Udachnaya pipe, Siberian craton)

Autor: Elisabeth d'Eyrames, Alexander V. Golovin, Yumi Kitayama, Emilie Thomassot, Αlbert Galy, Andrey V. Korsakov

Publikováno v: Geochimica et Cosmochimica Acta. 315:295-316

Deep, carbonate-rich melts are key constituents of kimberlites and are crucial for understanding the cycle of volatile elements in the mantle. On the Siberian craton, the Udachnaya-East kimberlite hosts extremely well-preserved nodules composed of ch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0cc7a8f51330d8c9664315d808d50e13
https://doi.org/10.1016/j.gca.2021.09.021

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Co-magmatic sulfides and sulfates in the Udachnaya-East pipe (Siberia): A record of the redox state and isotopic composition of sulfur in kimberlites and their mantle sources

Autor: Nelly Assayag, Yumi Kitayama, Alexander V. Golovin, Emilie Thomassot, Elisabeth d'Eyrames, Αlbert Galy, Andrey V. Korsakov, Dmitri A. Ionov, Nordine Bouden

Publikováno v: Chemical Geology
Chemical Geology, Elsevier, 2017, 455, pp.315-330. ⟨10.1016/j.chemgeo.2016.10.037⟩

International audience; Kimberlites of the Udachnaya-East pipe (Siberia) include a uniquely dry and serpentine-free rock type with anomalously high contents of chlorine (Cl ≤ 6.1 wt%), alkalies (Na2O + K2O ≤ 10 wt%) and sulfur (S ≤ 0.50 wt%), r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c2801790b9db5fde235e9c0f5dd9f0a
https://hal.archives-ouvertes.fr/hal-01571982

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A Study on B2B Mobile Solutions in Japan

Autor: Tetsuhiro Chujima, Junichi Iijima, Yumi Kitayama

Publikováno v: Proceedings of the Eighth International Conference on Mobile Business. :364-369

Recently, cellular phones are used everywhere on the earth. In Japan, smart phones with multi functionalities such as camera, Internet accessible, GPS, IC card, and so on are getting popular in these days. Since most of people go around with smart ph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81f9773fa53532166d6ffed222406577
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100591319

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A mantle origin for sulfates in the unusual 'salty' Udachnaya-East kimberlite from sulfur abundances, speciation and their relationship with groundmass carbonates

Autor: Elisabeth d'Eyrames, Yumi Kitayama, Alexander V. Golovin, Andrey V. Korsakov, Emilie Thomassot, Dmitri A. Ionov

Publikováno v: Bulletin de la Société Géologique de France
Bulletin de la Société Géologique de France, Société géologique de France, 2017, 188 (1-2), pp.UNSP 6. ⟨10.1051/bsgf/2017007⟩
BSGF-Earth Sciences Bulletin, Vol 188, Iss 1-2, p 6 (2017)

The Udachnaya-East pipe in Yakutia in Siberia hosts a unique dry (serpentine-free) body of hypabyssal kimberlite (2O), associated with a less dry type of kimberlite and a serpentinized kimberlitic breccia. The dry kimberlite is anomalously rich in sa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20b9752911afd7efef2870cc88d493db
https://doi.org/10.1051/bsgf/2017007

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