High-resolution paleosecular variations from 14 to 70 ka reconstructed from three Drake Passage sediment cores

作     者：柳加波 Norbert Nowaczyk Sanja Panovska Monika Korte Shuzhuang Wu 刘青松 Helge Arz 

会议日期：2021年

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

关 键 词：High resolution paleosecular variations from 14 to 70 ka reconstructed from three Drake Passage sediment cores 

摘      要：The present-day geomagnetic field is characterized by low intensities extending from Southern Africa to South America, namely the South Atlantic Anomaly (SAA). The field intensity at the SAA region is currently decreasing and it is controversially discussed whether this may be related to an impending excursion or even reversal of the geomagnetic field. Nevertheless, there is still little known about the history of SAA in the past tens of thousands of years.