The Archean-Paleoproterozoic crustal evolution in the Dunhuang region, NW China: Constraints from zircon U-Pb geochronology and in situ Hf isotopes
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- 作者：Yan Zhao ; zhaoyan9917@126.com" class="auth_mail" title="E-mail the corresponding author ; Yong Sun ; Jianghao Yan ; Chunrong Diwu
- 关键词：Tarim Craton ; North China Craton ; Dunhuang Complex ; Crustal evolution ; Archean-Paleoproterozoic ; Zircon
- 刊名：Precambrian Research
- 出版年：2015
- 出版时间：December 2015
- 年：2015
- 卷：271
- 期：Complete
- 页码：83-97
- 全文大小：6441 K
文摘
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Dunhuang Complex records 3.1–2.5 Ga, ∼2.0–1.9 Ga and 1.9–1.8 Ga tectonothermal events.
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Archean crust in Dunhuang region was mainly formed at ∼2.7–2.6 Ga and ∼2.56–2.45 Ga.
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Archean rocks underwent Paleoproterozoic (∼2.0–1.8 Ga) orogeny-related metamorphism.
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Dunhuang Complex widely experienced ca. 400–440 Ma orogeny-related metamorphism.
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Precambrian basement in Dunhuang region may be different parts of Tarim-North China Craton.
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