Weijian Zhou, Xianghui Kong, Greig A Paterson, Youbin Sun, Yubin Wu, Hong Ao, Feng Xian, Yajuan Du, Ling Tang, Jie Zhou, Zhengguo Shi, A J Timothy Jull, Guoqing Zhao, Zhisheng An
Whether there are links between geomagnetic field and Earth's orbital parameters remains unclear. Synchronous reconstructions of parallel long-term quantitative geomagnetic field and climate change records are rare. Here, we present 10 Be-derived changes of both geomagnetic field and Asian monsoon (AM) rainfall over the last 870 kyr from the Xifeng loess-paleosol sequence on the central Chinese Loess Plateau. The 10 Be GM flux (a proxy for geomagnetic field-induced 10 Be production rate) reveals 13 consecutive geomagnetic excursions in the Brunhes chron, which are synchronized with the global records, providing key time markers for Chinese loess-paleosol sequences...
April 25, 2023: Proceedings of the National Academy of Sciences of the United States of America