Middle Triassic ultrapotassic rhyolites from the Tanggula Pass, southern Qiangtang, China: A previously unrecognized stage of silicic magmatism
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- 作者：Sheng-Sheng Chena ; b ; c ; chenshengsheng@itpcas.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Ren-Deng Shia ; b ; Wei-Ming Fana ; b ; Hai-Bo Zoud ; De-Liang Liua ; Qi-Shuai Huanga ; Xiao-Han Gonga ; c ; Guo-Ding Yia ; c ; Kang Wua ; c
- 关键词：Tibet ; Bangong-Nujiang Tethys ; Triassic ; Ultrapotassic rhyolite ; Crustal growth
- 刊名：Lithos
- 出版年：2016
- 出版时间：1 November 2016
- 年：2016
- 卷：264
- 期：Complete
- 页码：258-276
- 全文大小：1916 K
文摘
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Middle Triassic ultrapotassic magmatism occurred in southern Qiangtang, Tibet.
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The rhyolites originated from mixed old sedimentary and juvenile material.
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This felsic magmatism was associated with subduction of the BNTO.
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The time of northward subduction of the BNTO was older than previously considered.
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Magma underplating and accretion made an important contribution to crustal growth.