Amphibole of metabasites in the Lesser Himalaya of Nepal

Paudel Lalu Prasad, Arita Kazunori, Itaya Tetsumaru

doi:10.14824/jampeg.2005.0.42.0

Bibliographic Information

Other Title

ネパール・レッサーヒマラヤ塩基性岩の角閃石

Description

The Lesser Himalaya in central Nepal exposes an inverted metamorphic sequence. The metabasites in the sequence occur as sheet-like bodies of a meter to tens of meters thickness. All the samples studied have the mineral assemblage Amp+Ab+Ep+Qtz+Titanite±Magnetite. Amphiboles occur as (1) sheared and elongated porphyroclasts with asymmetric pressure shadows and overgrown rims, (2) acicular and bladed aggregates parallel to the foliation and (3) inclusions in plagioclase. Amphibole chemistry suggests that (i) the peak metamorphism was attained during shearing related to the MCT movement and (ii) the peak thermal structure is inverted in the MCT shear zone.

Journal

Abstracts of Papers Presented at the Annual Meeting of The Japanese Association of Mineralogists, Petrologists and Economic Geologists

Abstracts of Papers Presented at the Annual Meeting of The Japanese Association of Mineralogists, Petrologists and Economic Geologists 2005 (0), 42-42, 2005

Japan Association of Mineralogical Sciences

Keywords

Details 詳細情報について

CRID: 1390001205591354368

NII Article ID: 130005019861

DOI: 10.14824/jampeg.2005.0.42.0

Text Lang: ja

Data Source

JaLC
CiNii Articles

Abstract License Flag: Disallowed

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