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Yixian Formation

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Research history

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  • Paleoclimate[1][2][3]
  • Cyclicity of depositional environments[4]
  • Jianshangou beds[5]

Geologic history

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Table

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Ages of Yixian Formation subunits by publication
Publication Lujiatun Lower Lava Jianshanggou Upper Lava Dawanzhangzi Jinggangshan
Chang et al. 2009 129.7 Ma at the oldest Up to 122.1 Ma
Chang et al. 2017 ~124—123 Ma 125.6—125.4 Ma
Qin et al. 2019
Zhong et al. 2021 125.755—125.684 Ma Up to 124.122 Ma
Li et al. 2022 125.541—125.793 Ma 125.374—125.572 Ma

Localities

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  • Anjiagou
  • Dajianshanzi
  • Hengdaozi
  • Huangbanjigou
  • Jingangshan
  • Liujiawopu
  • Mashenmiao-Songbahu
  • Sanguanmiao
  • Sihetun
  • Weijialing

Fossil content

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Geography and human use

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References

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  1. ^ Wang, Tiehui; Gong, Enpu; Liang, Yue; Cui, Ying; Huang, Wentao (2022). "Varves in the Yixian Formation, western Liaoning: Constraining the palaeoclimate in the Early Cretaceous". Geological Journal. 57 (1): 166–185. Bibcode:2022GeolJ..57..166W. doi:10.1002/gj.4289.
  2. ^ Tian, Xing; Gao, Yuan; Ma, Jian; Huang, He; Pan, Jinjiang; Wang, Chengshan (2024). "Lacustrine varves in the Lower Cretaceous Yixian Formation of western Liaoning, Northeast China: Implications for seasonal to sub-decadal palaeoclimate variability associated with the Jehol Biota and "Dinosaur Pompeii"". Palaeogeography, Palaeoclimatology, Palaeoecology. 646. Bibcode:2024PPP...64612241T. doi:10.1016/j.palaeo.2024.112241.
  3. ^ Cui, Ying; Gong, Enpu; Wang, Tiehui; Guan, Changqing; Zhang, Yongli; Liang, Junhong (2015). "Palynomorph assemblages and paleoclimate records from the Zhuanchengzi Bed of the Yixian Formation, western Liaoning Province, China". Science China Earth Sciences. 58 (9): 1538–1552. Bibcode:2015ScChD..58.1538C. doi:10.1007/s11430-015-5147-x.
  4. ^ Wang, Yaqiong; Olsen, Paul E.; Sha, Jingeng; Yao, Xiaogang; Liao, Huanyu; Pan, Yanhong; Kinney, Sean; Zhang, Xiaolin; Rao, Xin (2016). "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". Palaeogeography, Palaeoclimatology, Palaeoecology. 464: 110–133. Bibcode:2016PPP...464..110W. doi:10.1016/j.palaeo.2016.06.043.
  5. ^ Chen, P.; Wang, Q.; Zhang, H.; Cao, M.; Li, W.; Wu, S.; Shen, Y. (2005). "Jianshangou Bed of the Yixian Formation in west Liaoning, China". Science in China Series D: Earth Sciences. 48 (3): 298–312. Bibcode:2005ScChD..48..298C. doi:10.1360/04yd0038. S2CID 130825449.