Silicic ash beds bracket Emeishan Large Igneous province to < 1 m.y. at ~ 260 Ma
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- 作者：Hu Huanga ; b ; 118huanghu@163.com" class="auth_mail" title="E-mail the corresponding author ; Peter A. Cawoodb ; c ; Ming-Cai Houa ; Jiang-Hai Yangd ; Shi-Jun Nie ; Yuan-Sheng Dud ; Zhao-Kun Yana ; Jun Wanga
- 关键词：Geochemistry ; Guadalupian ; &minus ; ; Lopingian boundary ; Claystones ; Emeishan ; Silicic volcanism ; Emeishan large igneous province
- 刊名：Lithos
- 出版年：2016
- 出版时间：1 November 2016
- 年：2016
- 卷：264
- 期：Complete
- 页码：17-27
- 全文大小：2976 K
文摘
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Zircons from claystones around the G–L boundary give identical within-error ages (ca. 260 Ma) to the Emeishan LIP.
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Claystones around the G–L boundary have a silicic volcanic origin related to the Emeishan LIP.
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Emeishan silicic volcanism occurred not only at the end, but also prior to the LIP's emplacement.
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The total duration of the Emeishan igneous activity was no more than 1 m.y.