Multidecadally resolved polarity oscillations during a geomagnetic excursion
Chou, Yu-Min; Jiang, Xiuyang; Liu, Qing-Song; Hu, Hsun-Ming; Wu, Chung-Che; Liu, Jianxing; Jiang, Zhaoxia; Lee, Teh-Quei; Wang, Chun-Chieh; Song, Yen-Fang; Chiang, Cheng-Cheng; Roberts, Andrew P.; Zhao, Xiang
Polarity reversals of the geomagnetic field have occurred through billions of years of Earth history and were first revealed in the early 20th century. Almost a century later, details of transitional field behavior during geomagnetic reversals and excursions remain poorly known. Here, we present a multidecadally resolved geomagnetic excursion record from a radioisotopically dated Chinese stalagmite at 107–91 thousand years before present with age precision of several decades. The duration of...[Show more]
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|Source:||PNAS - Proceedings of the National Academy of Sciences of the United States of America|
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