English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

. The Pliocene climate and its driving mechanisms haveattracted substantial scientific interest because of their potential as ananalog for near-future climates. The late Miocene–Pliocene red clay sequenceof the main Chinese Loess Plateau (CLP) has been widely used to reconstructthe history of interior Asian aridification and the Asian monsoon. However,red clay sequences deposited on the planation surface of the Tibetan Plateau(TP) are rare. A continuous red clay sequence was recently discovered on theuplifted Xiaoshuizi (XSZ) planation surface in the Maxian Mountains,northeastern (NE) TP. In this study, we analyzed multiple climatic proxiesfrom the XSZ red clay sequence with the aim of reconstructing the lateMiocene–early Pliocene climate history of the NE TP and to assess regionalclimatic differences between the central and western CLP. Our resultsdemonstrate the occurrence of minimal weathering and pedogenesis during thelate Miocene, which indicates that the climate was arid. We speculate thatprecipitation delivered by the paleo East Asian summer monsoon (EASM) waslimited during this period and that the intensification of the circulation of the westerliesresulted in arid conditions in the study region. Subsequently,enhanced weathering and pedogenesis occurred intermittently during4.7–3.9 Ma, which attests to an increase in effective moisture. We ascribethe arid–humid climatic transition near ∼4.7  Ma to the expansion ofthe paleo-EASM. The warming of the high northern latitudes in response tothe closure of the Panama Seaway may have been responsible for thethermodynamical enhancement of the paleo-EASM system, which permitted moremoisture to be transported to the NE TP.

Late Miocene–Pliocene climate evolution recorded by the red clay cover on the Xiaoshuizi planation surface, NE Tibetan Plateau