hdl:10013/epic.0bf2de2f-0ff1-4fed-9c98-8f5dbdd93a48
publisher:10.1130/G47400.1

The role of the westerlies and orography in Asian hydroclimate since the late Oligocene


Wang, Xin, Carrapa, Barbara, Sun, Yuchen, Dettman, David L, Chapman, James B, Caves Rugenstein, Jeremy K, Clementz, Mark T, DeCelles, Peter G, Wang, Mi, Chen, Jie, Quade, Jay, Wang, Fei, Li, Zaijun, Oimuhammadzoda, Ilhomjon, Gadoev, Mustafo, Lohmann, Gerrit, Zhang, Xu and Chen, Fahu ;
Contact
Xu.Zhang [ at ] awi.de

Abstract

<jats:title>Abstract</jats:title><jats:p>Interactions between midlatitude westerlies and the Pamir–Tian Shan mountains significantly impact hydroclimate patterns in Central Asia today, and they played an important role in driving Asian aridification during the Cenozoic. We show that distinct west-east hydroclimate differences were established over Central Asia during the late Oligocene (ca. 25 Ma), as recorded by stable oxygen isotopic values of soil carbonates. Our climate simulations show that these differences are present when relief of the Pamir–Tian Shan is higher than 75% of modern elevation (∼3000 m). Integrated with geological evidence, we suggest that a significant portion of the Pamir–Tian Shan orogen had reached elevations of ∼3 km and acted as a moisture barrier for the westerlies since ca. 25 Ma.</jats:p>



Item Type
Article
Authors
Wang, Xin, Carrapa, Barbara, Sun, Yuchen, Dettman, David L, Chapman, James B, Caves Rugenstein, Jeremy K, Clementz, Mark T, DeCelles, Peter G, Wang, Mi, Chen, Jie, Quade, Jay, Wang, Fei, Li, Zaijun, Oimuhammadzoda, Ilhomjon, Gadoev, Mustafo, Lohmann, Gerrit, Zhang, Xu and Chen, Fahu ;
Divisions
AWI Organizations > Climate Sciences > Paleo-climate Dynamics
Primary Division
Organizations > AWI Organizations > Climate Sciences > Paleo-climate Dynamics
Programs
Basic Research > Helmholtz Independent Research
Primary Topic
Helmholtz Programs > Basic Research > Helmholtz Independent Research
Publication Status
Published
Eprint ID
53684
DOI https://www.doi.org/10.1130/g47400.1

Cite as
Wang, X. , Carrapa, B. , Sun, Y. , Dettman, D. L. , Chapman, J. B. , Caves Rugenstein, J. K. , Clementz, M. T. , DeCelles, P. G. , Wang, M. , Chen, J. , Quade, J. , Wang, F. , Li, Z. , Oimuhammadzoda, I. , Gadoev, M. , Lohmann, G. , Zhang, X. and Chen, F. (2020): The role of the westerlies and orography in Asian hydroclimate since the late Oligocene , Geology, 48 (7), pp. 728-732 . doi: https://www.doi.org/10.1130/g47400.1


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Geographical region
Asian Mainland > Central Asia
Asian Mainland > China

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