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The Blake Geomagnetic Polarity Episode recorded in Chinese loess
Author(s) -
Zhu R. X.,
Zhou L. P.,
Laj C.,
Mazaud A.,
Ding Z. L.
Publication year - 1994
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/94gl00532
Subject(s) - earth's magnetic field , loess , polarity (international relations) , geology , magnetostratigraphy , remanence , polarity reversal , geomagnetic reversal , paleomagnetism , geophysics , stratigraphy , geodesy , paleontology , magnetic field , magnetization , physics , genetics , quantum mechanics , biology , cell , tectonics , voltage
A geomagnetic anomaly consisting of three clearly defined periods of reverse polarity separated by two short intervals of normal polarity has been documented in a loess section near Xining, western China. On the basis of previous studies of Chinese loess stratigraphy, we correlate this geomagnetic polarity episode with the Blake event. While more research is needed to improve our understanding of the exact process of remanence acquisition of loess deposits, this study shows that loess may provide records of fast geomagnetic events and lends further support to the global nature of the Blake geomagnetic event.