A rhythmic source change of the Neoproterozoic basement meta-sedimentary sequences in the Jiangnan Orogen: Implications for tectonic evolution on the southeastern margin of the Yangtze Block
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- 作者：Jun-Yong Lia ; Xiao-Lei Wanga ; wxl@nju.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Feng-Feng Zhanga ; Xiao-Hua Zhoub ; Xu-Jie Shub
- 关键词：U&ndash ; Pb ages ; Lu&ndash ; Hf isotopes ; Detrital zircons ; Co-magmatic sedimentation ; Shuangqiaoshan Group ; Jiangnan Orogen
- 刊名：Precambrian Research
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：280
- 期：Complete
- 页码：46-60
- 全文大小：4703 K
文摘
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The maximum depositional ages by detrital zircons give an upward younging trend.
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The upper Shuangqiaoshan (SQS) Group show features of a co-magmatic sedimentation.
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A rhythmic source change in the upper SQS Group implies a bidirectional water flow.
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The basement sediments in the Jiangnan Orogen formed in a back-arc basin setting.
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The back-arc basin was divided into three regions by distances to the arc terranes.