RT Journal Article
T1 Similar Magnetic Enhancement Mechanisms Between Chinese Loess and Alluvial Sediments From the Teruel Basin, NE Spain, and Paleoclimate Implications
A1 Gao, Peng
A1 Nie, Junsheng
A1 Breecker, Daniel O.
A1 Gallagher, Timothy
A1 Serach, Lily
A1 Alonso Zarza, Ana María
AB The Pliocene is considered an analog for future climate. Insolation is found the dominant forcing for Asian precipitation over the late Pliocene, evidenced by magnetic enhancement of Chinese loess caused by formation of nanometer-scale ferrimagnetic grains during pedogenesis corresponding to high precipitation. However, lack of European loess limits understanding of Pliocene European climate. We identified likely similar magnetic enhancement mechanism between Pliocene alluvial sediments from Spain and Chinese loess despite different depositional settings. This provides an opportunity to improve understanding of Pliocene climate in Europe. Spectral analysis shows that European wet-dry variations during the early Pliocene were forced by insolation and during the late Pliocene by both insolation and ice sheets development. During the Quaternary, in contrast, the forcing was dominantly from high latitude. These results demonstrate the importance of insolation during warm climates and the growing importance of ice sheets with global cooling in controlling Northern Hemisphere precipitation changes.
PB American Geophysical Union
SN 0094-8276
YR 2022
FD 2022-03-28
LK https://hdl.handle.net/20.500.14352/73055
UL https://hdl.handle.net/20.500.14352/73055
LA eng
NO National Natural Science Foundation of China
NO Second Tibetan Plateau Scientific Expedition
NO Science and Technology Department of Gansu Province of China
NO 111 Project
NO National Science Foundation of the United States of America
DS Docta Complutense
RD 22 abr 2025