Bayesian Paleomagnetic Euler Pole Inversion for Paleogeographic Reconstruction and Analysis
Bayesian Paleomagnetic Euler Pole Inversion for Paleogeographic Reconstruction and Analysis
复制标题
贝叶斯古地磁欧拉极反演用于古地理重建与分析
DOI:
10.1029/2021jb023890
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Swanson‐Hysell, Nicholas L.
中科院分区:
文献类型:
--
作者:
Rose, Ian R.;Zhang, Yiming;Swanson‐Hysell, Nicholas L.
Apparent polar wander paths (APWPs) synthesized from paleomagnetic poles provide the most direct data for reconstructing past paleogeography and plate motions for times earlier than ca. 200 Ma. In this contribution, we describe a new method for APWP synthesis that extends the paleomagnetic Euler pole analysis of Gordon et al. (1984, https://doi.org/10.1029/TC003i005p00499) by placing it within the framework of a Bayesian inverse problem. This approach incorporates uncertainties in pole positions and age that are often ignored in standard treatments. The paleomagnetic Euler poles resulting from the inversions provide estimates for full‐vector plate motion (both latitude and longitude) and associated uncertainty. The method allows for inverting for one or more Euler poles with the timing of changepoints being solved as part of the inversion. In addition, the method allows the incorporation of true polar wander rotations, thus providing an avenue for probabilistic partitioning of plate tectonic motion and true polar wander based on paleomagnetic poles. We show example inversions on synthetic data to demonstrate the method's capabilities. We illustrate application of the method to Cenozoic Australia paleomagnetic poles which can be compared to independent plate reconstructions. A two‐Euler pole inversion for the Australian record recovers northward acceleration of Australia in the Eocene with rates that are consistent with plate reconstructions. We also apply the method to constrain rapid rates of motion for cratonic North America associated with the Keweenawan Track of late Mesoproterozoic paleomagnetic poles. The application of Markov chain Monte Carlo methods to estimate paleomagnetic Euler poles can open new directions in quantitative paleogeography.
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DOI:
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发表时间:
1969
期刊:
影响因子:
--
作者:
J. Francheteau;J. Sclater
通讯作者:
J. Sclater
影响因子:
4.2
作者:
B. E. Cohen;K. Knesel;P. Vasconcelos;W. Schellart
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B. E. Cohen;K. Knesel;P. Vasconcelos;W. Schellart
DOI:
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发表时间:
1987
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影响因子:
--
作者:
A. Forte;W. Peltier
通讯作者:
W. Peltier
DOI:
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发表时间:
1977
期刊:
影响因子:
--
作者:
S. Henry;F. Mauk;R. Voo
通讯作者:
R. Voo
影响因子:
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作者:
J. Tarduno;Michael McWillams;N. Sleep
通讯作者:
N. Sleep