Thermal gradient and geochronology of a Paleozoic high-grade terrane in the northeastern Cathaysia block, South China
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- 作者：Lei Zhaoa ; b ; zhaolei_zl@yeah.net" class="auth_mail" title="E-mail the corresponding author ; Mingguo Zhaia ; c ; Xiwen Zhoub ; M. Santoshd ; e ; Xudong Maf
- 关键词：Paleozoic orogeny ; Arc root ; High grade metamorphism ; Zircon geochronology ; Cathaysia Block
- 刊名：Tectonophysics
- 出版年：2016
- 出版时间：22 November 2016
- 年：2016
- 卷：691
- 期：part_PB
- 页码：311-327
- 全文大小：4749 K
文摘
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Metamorphic minerals all display retrograde textures and compositions.
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Opx granulite record high thermal gradient of ~ 30 °C/km.
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Sedimentation provenance dominated by ~ 0.79 and ~ 0.83 Ga rocks
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Granulite facies metamorphism at 430–450 Ma
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High thermal gradient and sedimentation setting attest to continental arc model.