Discovery of blueschists in Gangmar-Taoxing Co area, central Qiangtang, Northern Tibet

Xiguang Deng; Lin Ding; Xiaohan Liu; An Yin; Paul A. Kapp; Michael A. Murphy; Craig E. Manning

Discovery of blueschists in Gangmar-Taoxing Co area, central Qiangtang, Northern Tibet

Xiguang Deng, Lin Ding, Xiaohan Liu, An Yin, Paul A. Kapp, Michael A. Murphy, Craig E. Manning

Geosciences

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

26 Scopus citations

Abstract

The blueschists, discovered in the Gangmar-Taoxing Co area, central Qiangtang, Northern Tibet, consist of glaucophane, ferroglaucophane, crossite, phengite, actinolite, epidote, chlorite, calcite, sphene, rutite, etc., with the metamorphic temperature 400°C ±, and pressure 7kbar ±, which demonstrates there occurred a high pressure metamorphic belt. The ³⁹Ar - ⁴⁰Ar dating from the glaucophane yields 275 - 287Ma, which comprehends the metamorphism being related to subduction of the Paleotethyan ocean. It is thought to extend southeastwards and link up with the Lancangjiang high pressure metamorphic belt in west Yunnan, constituting a very important tectonic boundary between Gondwana and Euroasia continents.

Original language	English (US)
Pages (from-to)	227-232
Number of pages	6
Journal	Scientia Geologica Sinica
Volume	35
Issue number	2
State	Published - 2000

Keywords

Blueschists
Central Qiangtang
Garmar - Taoxing Co area
High-pressure metamorphic belt

ASJC Scopus subject areas

Geology

Cite this

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title = "Discovery of blueschists in Gangmar-Taoxing Co area, central Qiangtang, Northern Tibet",

abstract = "The blueschists, discovered in the Gangmar-Taoxing Co area, central Qiangtang, Northern Tibet, consist of glaucophane, ferroglaucophane, crossite, phengite, actinolite, epidote, chlorite, calcite, sphene, rutite, etc., with the metamorphic temperature 400°C ±, and pressure 7kbar ±, which demonstrates there occurred a high pressure metamorphic belt. The 39Ar - 40Ar dating from the glaucophane yields 275 - 287Ma, which comprehends the metamorphism being related to subduction of the Paleotethyan ocean. It is thought to extend southeastwards and link up with the Lancangjiang high pressure metamorphic belt in west Yunnan, constituting a very important tectonic boundary between Gondwana and Euroasia continents.",

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author = "Xiguang Deng and Lin Ding and Xiaohan Liu and An Yin and Kapp, {Paul A.} and Murphy, {Michael A.} and Manning, {Craig E.}",

year = "2000",

language = "English (US)",

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journal = "Scientia Geologica Sinica",

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TY - JOUR

T1 - Discovery of blueschists in Gangmar-Taoxing Co area, central Qiangtang, Northern Tibet

AU - Deng, Xiguang

AU - Ding, Lin

AU - Liu, Xiaohan

AU - Yin, An

AU - Kapp, Paul A.

AU - Murphy, Michael A.

AU - Manning, Craig E.

PY - 2000

Y1 - 2000

N2 - The blueschists, discovered in the Gangmar-Taoxing Co area, central Qiangtang, Northern Tibet, consist of glaucophane, ferroglaucophane, crossite, phengite, actinolite, epidote, chlorite, calcite, sphene, rutite, etc., with the metamorphic temperature 400°C ±, and pressure 7kbar ±, which demonstrates there occurred a high pressure metamorphic belt. The 39Ar - 40Ar dating from the glaucophane yields 275 - 287Ma, which comprehends the metamorphism being related to subduction of the Paleotethyan ocean. It is thought to extend southeastwards and link up with the Lancangjiang high pressure metamorphic belt in west Yunnan, constituting a very important tectonic boundary between Gondwana and Euroasia continents.

AB - The blueschists, discovered in the Gangmar-Taoxing Co area, central Qiangtang, Northern Tibet, consist of glaucophane, ferroglaucophane, crossite, phengite, actinolite, epidote, chlorite, calcite, sphene, rutite, etc., with the metamorphic temperature 400°C ±, and pressure 7kbar ±, which demonstrates there occurred a high pressure metamorphic belt. The 39Ar - 40Ar dating from the glaucophane yields 275 - 287Ma, which comprehends the metamorphism being related to subduction of the Paleotethyan ocean. It is thought to extend southeastwards and link up with the Lancangjiang high pressure metamorphic belt in west Yunnan, constituting a very important tectonic boundary between Gondwana and Euroasia continents.

KW - Blueschists

KW - Central Qiangtang

KW - Garmar - Taoxing Co area

KW - High-pressure metamorphic belt

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Discovery of blueschists in Gangmar-Taoxing Co area, central Qiangtang, Northern Tibet

Abstract

Keywords

ASJC Scopus subject areas

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