Winchite from Mt. Hiei contact aureole, Kyoto, Japan

Takao Hirajima; Daisuke Nakamura; Katsushi Shirahata

doi:10.2465/jmps.95.107

Winchite from Mt. Hiei contact aureole, Kyoto, Japan

Takao Hirajima, Daisuke Nakamura, Katsushi Shirahata

Research output: Contribution to journal › Article › peer-review

Abstract

Sodic-calcic amphibole closely associated with aegirine-augite was newly found from a sandy hornfels at Mt. Hiei contact aureole, Kyoto, Japan. The amphibole shows a pleochroism of X=colorless, Y=blue and Z=light blue and is winchite with significant amounts of TiO₂ (1.5-2.5 wt.%) and of Mg-Fe-Mn-Li amphibole component at B site (ca. 0.1-0.4 cations for O=23 basis). The chemical composition and the coexisting phases of the winchite in this study are similar to those in the alkaline igneous complex.

Original language	English
Pages (from-to)	107-112
Number of pages	6
Journal	Journal of Mineralogical and Petrological Sciences
Volume	95
Issue number	6
DOIs	https://doi.org/10.2465/jmps.95.107
Publication status	Published - 2000
Externally published	Yes

ASJC Scopus subject areas

Geophysics
Geology

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title = "Winchite from Mt. Hiei contact aureole, Kyoto, Japan",

abstract = "Sodic-calcic amphibole closely associated with aegirine-augite was newly found from a sandy hornfels at Mt. Hiei contact aureole, Kyoto, Japan. The amphibole shows a pleochroism of X=colorless, Y=blue and Z=light blue and is winchite with significant amounts of TiO2 (1.5-2.5 wt.%) and of Mg-Fe-Mn-Li amphibole component at B site (ca. 0.1-0.4 cations for O=23 basis). The chemical composition and the coexisting phases of the winchite in this study are similar to those in the alkaline igneous complex.",

author = "Takao Hirajima and Daisuke Nakamura and Katsushi Shirahata",

year = "2000",

doi = "10.2465/jmps.95.107",

language = "English",

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journal = "Journal of Mineralogical and Petrological Sciences",

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AB - Sodic-calcic amphibole closely associated with aegirine-augite was newly found from a sandy hornfels at Mt. Hiei contact aureole, Kyoto, Japan. The amphibole shows a pleochroism of X=colorless, Y=blue and Z=light blue and is winchite with significant amounts of TiO2 (1.5-2.5 wt.%) and of Mg-Fe-Mn-Li amphibole component at B site (ca. 0.1-0.4 cations for O=23 basis). The chemical composition and the coexisting phases of the winchite in this study are similar to those in the alkaline igneous complex.

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Winchite from Mt. Hiei contact aureole, Kyoto, Japan

Abstract

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