Completing the loop of the Late Jurassic–Early Cretaceous true polar wander event

Yifei Hou, Pan Zhao (), Huafeng Qin, Ross N. Mitchell, Qiuli Li, Wenxing Hao, Min Zhang, Peter D. Ward, Jie Yuan, Chenglong Deng and Rixiang Zhu
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Yifei Hou: Chinese Academy of Sciences
Pan Zhao: Chinese Academy of Sciences
Huafeng Qin: Chinese Academy of Sciences
Ross N. Mitchell: Chinese Academy of Sciences
Qiuli Li: Chinese Academy of Sciences
Wenxing Hao: Chinese Academy of Sciences
Min Zhang: Chinese Academy of Sciences
Peter D. Ward: University of Washington
Jie Yuan: Chinese Academy of Sciences
Chenglong Deng: Chinese Academy of Sciences
Rixiang Zhu: Chinese Academy of Sciences

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract The reorientation of Earth through rotation of its solid shell relative to its spin axis is known as True polar wander (TPW). It is well-documented at present, but the occurrence of TPW in the geologic past remains controversial. This is especially so for Late Jurassic TPW, where the veracity and dynamics of a particularly large shift remain debated. Here, we report three palaeomagnetic poles at 153, 147, and 141 million years (Myr) ago from the North China craton that document an ~ 12° southward shift in palaeolatitude from 155–147 Myr ago (~1.5° Myr−1), immediately followed by an ~ 10° northward displacement between 147–141 Myr ago (~1.6° Myr−1). Our data support a large round-trip TPW oscillation in the past 200 Myr and we suggest that the shifting back-and-forth of the continents may contribute to the biota evolution in East Asia and the global Jurassic–Cretaceous extinction and endemism.

Date: 2024
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DOI: 10.1038/s41467-024-46466-7

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