Geochemical characteristics of blueschist and its tectonic significance in the central Qiangtang area, Tibet

Xi Guang Deng; Lin Ding; Xiao Han Liu; An Yin; Paul A. Kapp; Michael A. Murphy; Craig E. Manning

Geochemical characteristics of blueschist and its tectonic significance in the central Qiangtang area, Tibet

Xi Guang Deng, Lin Ding, Xiao Han Liu, An Yin, Paul A. Kapp, Michael A. Murphy, Craig E. Manning

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

Abstract

Blueschists are considered the mark of plate tectonic boundary in the Gangmar-Taoxing Co area, central Qiangtang, Tibet. Based on geochemical characteristics of major, trace and rare earth elements and the geochemical diagram, the protolith of blueschists belongs to alkali basalt that is a skin to intraplate ocean island basalts, and formed on seamount-like structures under an intraplate plume. Together with the geological features, it shows that it presents a Palaeo-Tethyan ocean in the central Qiangtang area. Therefore, the area may represent the boundary between Gondwana and Laurasia continents during the Late Paleozoic period.

Original language	English (US)
Pages (from-to)	517-525
Number of pages	9
Journal	Acta Petrologica Sinica
Volume	18
Issue number	4
State	Published - Oct 2002
Externally published	Yes

Keywords

Blueschist
Geochemical characteristics
Oceanic island alkali basalt
Palaeo-Tethyan ocean
Tibet

ASJC Scopus subject areas

Geochemistry and Petrology

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title = "Geochemical characteristics of blueschist and its tectonic significance in the central Qiangtang area, Tibet",

abstract = "Blueschists are considered the mark of plate tectonic boundary in the Gangmar-Taoxing Co area, central Qiangtang, Tibet. Based on geochemical characteristics of major, trace and rare earth elements and the geochemical diagram, the protolith of blueschists belongs to alkali basalt that is a skin to intraplate ocean island basalts, and formed on seamount-like structures under an intraplate plume. Together with the geological features, it shows that it presents a Palaeo-Tethyan ocean in the central Qiangtang area. Therefore, the area may represent the boundary between Gondwana and Laurasia continents during the Late Paleozoic period.",

keywords = "Blueschist, Geochemical characteristics, Oceanic island alkali basalt, Palaeo-Tethyan ocean, Tibet",

author = "Deng, {Xi Guang} and Lin Ding and Liu, {Xiao Han} and An Yin and Kapp, {Paul A.} and Murphy, {Michael A.} and Manning, {Craig E.}",

year = "2002",

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language = "English (US)",

volume = "18",

pages = "517--525",

journal = "Acta Petrologica Sinica",

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TY - JOUR

T1 - Geochemical characteristics of blueschist and its tectonic significance in the central Qiangtang area, Tibet

AU - Deng, Xi Guang

AU - Ding, Lin

AU - Liu, Xiao Han

AU - Yin, An

AU - Kapp, Paul A.

AU - Murphy, Michael A.

AU - Manning, Craig E.

PY - 2002/10

Y1 - 2002/10

N2 - Blueschists are considered the mark of plate tectonic boundary in the Gangmar-Taoxing Co area, central Qiangtang, Tibet. Based on geochemical characteristics of major, trace and rare earth elements and the geochemical diagram, the protolith of blueschists belongs to alkali basalt that is a skin to intraplate ocean island basalts, and formed on seamount-like structures under an intraplate plume. Together with the geological features, it shows that it presents a Palaeo-Tethyan ocean in the central Qiangtang area. Therefore, the area may represent the boundary between Gondwana and Laurasia continents during the Late Paleozoic period.

AB - Blueschists are considered the mark of plate tectonic boundary in the Gangmar-Taoxing Co area, central Qiangtang, Tibet. Based on geochemical characteristics of major, trace and rare earth elements and the geochemical diagram, the protolith of blueschists belongs to alkali basalt that is a skin to intraplate ocean island basalts, and formed on seamount-like structures under an intraplate plume. Together with the geological features, it shows that it presents a Palaeo-Tethyan ocean in the central Qiangtang area. Therefore, the area may represent the boundary between Gondwana and Laurasia continents during the Late Paleozoic period.

KW - Blueschist

KW - Geochemical characteristics

KW - Oceanic island alkali basalt

KW - Palaeo-Tethyan ocean

KW - Tibet

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