Mantle volatiles in spring gases in the Basin and Range Province on the west of Beijing, China: Constraints from helium and carbon isotopes
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- 作者：Weibin Zhanga ; b ; c ; fossilchina@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Jianguo Dua ; Xiaocheng Zhoua ; Fei Wangb
- 关键词：Spring gas ; Helium isotopes ; Carbon isotopes ; Mantle degassing ; Intraplate tectonic setting
- 刊名：Journal of Volcanology and Geothermal Research
- 出版年：2016
- 出版时间：1 January 2016
- 年：2016
- 卷：309
- 期：Complete
- 页码：45-52
- 全文大小：1301 K
文摘
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Helium and carbon isotopes indicate mixture of mantle and crustal materials.
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3He/4He ratio corresponds with 70-km-deep negative Vp anomaly, suggesting a source in upwelling asthenosphere.
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3He/4He ratio correlates with time-averaged fault slip rate, implying higher slip rate renders more permeable mantle vent.