Stratigraphy, correlation, depositional environments, and cyclicity of the Early Cretaceous Yixian and ?Jurassic-Cretaceous Tuchengzi formations in the Sihetun area (NE China) based on three continuous cores
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- 作者：Yaqiong Wanga ; Paul E. Olsenb ; Jingeng Shac ; jgsha@nigpas.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Xiaogang Yaoc ; Huanyu Liaoc ; Yanhong Pana ; Sean Kinneyb ; Xiaolin Zhangd ; Xin Raoc
- 关键词：Early Cretaceous ; Lacustrine ; Scientific coring ; Lagerstä ; tte ; Feathered dinosaur ; Lava flows
- 刊名：Palaeogeography, Palaeoclimatology, Palaeoecology
- 出版年：2016
- 出版时间：15 December 2016
- 年：2016
- 卷：464
- 期：Complete
- 页码：110-133
- 全文大小：9790 K
文摘
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The three members of the Yixian Formation represent historical phases, not facies equivalents.
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Basal Lujiatun Member houses tetrapod fossils preserved in 3 dimensions in fluvial and volcaniclastic rock.
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Xiatulaigou Member lavas and breccias are the only true flow units in the area.
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Jianshangou Member laminites, air-falls, and tuffaceous rocks house the Jehol Biota.
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The extraordinary preservation of the Jehol Biota is a result of deep lake anoxia.