Late Jurassic adakitic granodiorite in the Dong Co area, northern Tibet: Implications for subduction of the Bangong-Nujiang oceanic lithosphere and related accretion of the Southern Qiangtang terrane
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- 作者：Jian-Jun Fana ; fanjj03@163.com" class="auth_mail" title="E-mail the corresponding author ; Cai Lia ; licai010@126.com" class="auth_mail" title="E-mail the corresponding author ; Hao Wua ; wuhaojlu@126.com" class="auth_mail" title="E-mail the corresponding author ; Tian-Yu Zhanga ; zhangty48@163.com" class="auth_mail" title="E-mail the corresponding author ; Ming Wanga ; wm609@163.com" class="auth_mail" title="E-mail the corresponding author ; Jing-Wen Chenb ; jwchen12@126.com" class="auth_mail" title="E-mail the corresponding author ; Jian-Xin Xuc ; xujianxin8888@163.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Bangong&ndash ; Nujiang suture zone ; Dong Co granodiorites ; Adakitic magma ; Subduction and accretion ; Accretionary wedge
- 刊名：Tectonophysics
- 出版年：2016
- 出版时间：22 November 2016
- 年：2016
- 卷：691
- 期：part_PB
- 页码：345-361
- 全文大小：3836 K
文摘
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The Dong Co granodiorites (DGs) are I-type tholeiitic–calc-alkaline granitoids that formed during the early Late Jurassic.
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The parental magmas of the DGs were derived from the partial melting of subducted oceanic crust.
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Many of the bathyal to abyssal deposits in the accretionary wedge were involved in the formation of the DGs.
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The accretionary wedge on the Southern Qiangtang terrane has grown sufficiently large during the Late Jurassic.