43638
2016
2021
eng
8
1114
postprint
1
2021-02-07
2021-02-07
--
Resilience of the Asian atmospheric circulation shown by paleogene dust provenance
The onset of modern central Asian atmospheric circulation is traditionally linked to the interplay of surface uplift of the Mongolian and Tibetan-Himalayan orogens, retreat of the Paratethys sea from central Asia and Cenozoic global cooling. Although the role of these players has not yet been unravelled, the vast dust deposits of central China support the presence of arid conditions and modern atmospheric pathways for the last 25 million years (Myr). Here, we present provenance data from older (42-33 Myr) dust deposits, at a time when the Tibetan Plateau was less developed, the Paratethys sea still present in central Asia and atmospheric pCO(2) much higher. Our results show that dust sources and near-surface atmospheric circulation have changed little since at least 42 Myr. Our findings indicate that the locus of central Asian high pressures and concurrent aridity is a resilient feature only modulated by mountain building, global cooling and sea retreat.
Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
10.25932/publishup-43638
urn:nbn:de:kobv:517-opus4-436381
1866-8372
online registration
Nature Communications 7 (2016) Art. 12390 DOI: 10.1038/ncomms12390
<a href="http://publishup.uni-potsdam.de/45116">Bibliographieeintrag der Originalveröffentlichung/Quelle</a>
12390
false
true
CC-BY - Namensnennung 4.0 International
Alexis Licht
Guillaume Dupont-Nivet
Alex Pullen
Paul Kapp
Hemmo A. Abels
Zulong Lai
ZhaoJie Guo
Jordan Abell
Dominique Giesler
Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
1114
eng
uncontrolled
Chinese Loess Plateau
eng
uncontrolled
last glacial maximum
eng
uncontrolled
Tibetan Plateau
eng
uncontrolled
Yellow-River
eng
uncontrolled
climate
eng
uncontrolled
basin
eng
uncontrolled
evolution
eng
uncontrolled
ardification
eng
uncontrolled
monsoons
eng
uncontrolled
desert
Naturwissenschaften und Mathematik
open_access
Mathematisch-Naturwissenschaftliche Fakultät
Referiert
Institut für Umweltwissenschaften und Geographie
Horizon 2020
Green Open-Access
Universität Potsdam
https://publishup.uni-potsdam.de/files/43638/pmnr1114.pdf
34861
2013
2013
eng
1
10
10
374
article
Elsevier
Amsterdam
1
--
--
--
Wind as the primary driver of erosion in the Qaidam Basin, China
Deserts are a major source of loess and may undergo substantial wind-erosion as evidenced by yardang fields, deflation pans, and wind-scoured bedrock landscapes. However, there are few quantitative estimates of bedrock removal by wind abrasion and deflation. Here, we report wind-erosion rates in the western Qaidam Basin in central China based on measurements of cosmogenic Be-10 in exhumed Miocene sedimentary bedrock. Sedimentary bedrock erosion rates range from 0.05 to 0.4 mm/yr, although the majority of measurements cluster at 0.125 +/- 0.05 mm/yr. These results, combined with previous work, indicate that strong winds, hyper-aridity, exposure of friable Neogene strata, and ongoing rock deformation and uplift in the western Qaidam Basin have created an environment where wind, instead of water, is the dominant agent of erosion and sediment transport. Its geographic location (upwind) combined with volumetric estimates suggest that the Qaidam Basin is a major source (up to 50%) of dust to the Chinese Loess Plateau to the east. The cosmogenically derived wind erosion rates are within the range of erosion rates determined from glacial and fluvial dominated landscapes worldwide, exemplifying the effectiveness of wind to erode and transport significant quantities of bedrock.
Earth & planetary science letters
10.1016/j.epsl.2013.03.011
0012-821X
wos:2011-2013
WOS:000324663700001
Rohrmann, A (reprint author), Univ Potsdam, Inst Erd & Umweltwissensch, D-14476 Potsdam, Germany., rohrmann@geo.uni-potsdam.de
American Chemical Society Petroleum Research Fund [48729-ND8];
DFG-Leibniz Center for Surface Processes and Climate Studies at the
Universitat Potsdam, Germany
Alexander Rohrmann
Richard Heermance
Paul Kapp
Fulong Cai
eng
uncontrolled
wind
eng
uncontrolled
cosmogenic nuclide-dating
eng
uncontrolled
earth surface processes
eng
uncontrolled
Chinese Loess Plateau
eng
uncontrolled
climate
eng
uncontrolled
Asia
Institut für Geowissenschaften
Referiert
Institut für Erd- und Umweltwissenschaften
36168
2012
2012
eng
187
190
4
2
40
article
American Institute of Physics
Boulder
1
--
--
--
Thermochronologic evidence for plateau formation in central Tibet by 45 Ma
The timing of Tibetan plateau development remains elusive, despite its importance for evaluating models of continental lithosphere deformation and associated changes in surface elevation and climate. We present new thermochronologic data [biotite and K-feldspar Ar-40/Ar-39, apatite fission track, and apatite (U-Th)/He] from the central Tibetan plateau (Lhasa and Qiangtang terranes). The data indicate that over large regions, rocks underwent rapid to moderate cooling and exhumation during Cretaceous to Eocene time. This was coeval with >50% upper crustal shortening, suggesting substantial crustal thickening and surface elevation gain. Thermal modeling of combined thermochronometers requires exhumation of most samples to depths of <3 km between 85 and 45 Ma, followed by a decrease in erosional exhumation rate to low values of <0.05 mm/yr. The thermochronological results, when interpreted in the context of the deformation and paleoaltimetric history, are best explained by a scenario of plateau growth that began locally in central Tibet during the Late Cretaceous and expanded to encompass most of central Tibet by 45 Ma.
Geology
10.1130/G32530.1
0091-7613
wos:2011-2013
WOS:000299668100024
Rohrmann, A (reprint author), Univ Potsdam, Inst Erd & Urnweltwissensch, D-14476 Potsdam, Germany.
National Science Foundation [EAR-0438120, EAR-0808976, EAR-1008527];
American Chemical Society Petroleum Research Fund; Chinese Academy of
Sciences [KZCX2-YW-Q09-03]
Alexander Rohrmann
Paul Kapp
Barbara Carrapa
Peter W. Reiners
Jerome Guynn
Lin Ding
Matthew Heizler
Institut für Geowissenschaften
Referiert
Institut für Erd- und Umweltwissenschaften
38371
2015
2015
eng
501
501
1
432
other
Elsevier
Amsterdam
1
--
--
--
Wind as the primary driver of erosion in the Qaidam Basin, China (vol 374, pg 1, 2013)
Earth & planetary science letters
10.1016/j.epsl.2015.10.011
0012-821X
1385-013X
wos:2015
WOS:000366345200048
Rohrmann, A (reprint author), Univ Potsdam, Inst Erd & Umweltwissensch, D-14476 Potsdam, Germany., rohrmann@geo.uni-potsdam.de
Alexander Rohrmann
Richard Heermance
Paul Kapp
Fulong Cai
Institut für Geowissenschaften
Referiert
Institut für Erd- und Umweltwissenschaften
39066
2015
2015
eng
142
153
12
415
article
Elsevier
Amsterdam
1
--
--
--
Lower Cretaceous Xigaze ophiolites formed in the Gangdese forearc: Evidence from paleomagnetism, sediment provenance, and stratigraphy
The India-Asia suture zone of southern Tibet exposes Lower Cretaceous Xigaze ophiolites and radiolarian cherts, and time-equivalent Asian-derived clastic forearc sedimentary rocks (Xigaze Group). These ophiolites have been interpreted to have formed in the forearc of the north-dipping subduction zone below Tibet that produced the Gangdese magmatic arc around 15-20 degrees N, or in the forearc of a subequatorial intra-oceanic subduction zone. To better constrain the latitude of the ophiolites, we carried out an integrated paleomagnetic, geochronologic and stratigraphical study on epi-ophiolitic radiolarites (Chongdui and Bainang sections), and Xigaze Group turbiditic sandstones unconformably overlying the ophiolite's mantle units (Sangsang section). Detrital zircon U-Pb geochronology of tuffaceous layers from the Chongdui section and sandstones of the Xigaze Group at the Sangsang section provides maximum depositional ages of 116.5 +/- 3.1 Ma and 128.8 +/- 3.4 Ma, respectively, for the Chongdui section and an Asian provenance signature for the Xigaze Group. Paleomagnetic analyses, integrated with rock magnetic experiments, indicate significant compaction-related inclination 'shallowing' of the remanence within the studied rocks. Two independent methods are applied for the inclination shallowing correction of the paleomagnetic directions from the Sangsang section, yielding consistent mean paleolatitudes of 16.2 degrees N 113 degrees N, 20.9 degrees N] and 16.8 degrees N [11.1 degrees N, 23.3 degrees N], respectively. These results are indistinguishable from recent paleolatitude estimates for the Gangdese arc in southern Tibet. Radiolarites from the Chongdui and Bainang sections yield low paleomagnetic inclinations that would suggest a sub-equatorial paleolatitude, but the distribution of the paleomagnetic directions in these rocks strongly suggests a low inclination bias by compaction. Our data indicate that spreading of the Xigaze ophiolite occurred in the Gangdese forearc, and formed the basement of the forearc strata. (C) 2015 Elsevier B.V. All rights reserved.
Earth & planetary science letters
10.1016/j.epsl.2015.01.032
0012-821X
1385-013X
wos:2015
WOS:000350929600014
Huang, WT (reprint author), Univ Utrecht, Dept Earth Sci, Budapestlaan 17, NL-3584 CD Utrecht, Netherlands., W.Huang@uu.nl
U.S. NSF [EAR-1008527]; Netherlands Organisation for Scientific Research
(NWO) VIDI; European Research Council (ERC) [306810]; Alexander von
Humboldt Foundation; Cai Yuanpei program of the French Ministry of
Foreign Affairs; Ministry of Higher Education and Research; Ministry of
Wentao Huang
Douwe J. J. van Hinsbergen
Marco Maffione
Devon A. Orme
Guillaume Dupont-Nivet
Carl Guilmette
Lin Ding
Zhaojie Guo
Paul Kapp
eng
uncontrolled
Xigaze ophiolite
eng
uncontrolled
sedimentary contact
eng
uncontrolled
paleomagnetism and rock magnetism
eng
uncontrolled
inclination shallowing
Institut für Geowissenschaften
Referiert
Institut für Erd- und Umweltwissenschaften
39101
2015
2015
eng
594
622
29
3
34
article
American Geophysical Union
Washington
1
--
--
--
What was the Paleogene latitude of the Lhasa terrane? A reassessment of the geochronology and paleomagnetism of Linzizong volcanic rocks (Linzhou basin, Tibet)
The Paleogene latitude of the Lhasa terrane (southern Tibet) can constrain the age of the onset of the India-Asia collision. Estimates for this latitude, however, vary from 5 degrees N to 30 degrees N, and thus, here, we reassess the geochronology and paleomagnetism of Paleogene volcanic rocks from the Linzizong Group in the Linzhou basin. The lower and upper parts of the section previously yielded particularly conflicting ages and paleolatitudes. We report consistent Ar-40/Ar-39 and U-Pb zircon dates of similar to 52Ma for the upper Linzizong, and Ar-40/Ar-39 dates (similar to 51Ma) from the lower Linzizong are significantly younger than U-Pb zircon dates (64-63Ma), suggesting that the lower Linzizong was thermally and/or chemically reset. Paleomagnetic results from 24 sites in lower Linzizong confirm a low apparent paleolatitude of similar to 5 degrees N, compared to the upper part (similar to 20 degrees N) and to underlying Cretaceous strata (similar to 20 degrees N). Detailed rock magnetic analyses, end-member modeling of magnetic components, and petrography from the lower and upper Linzizong indicate widespread secondary hematite in the lower Linzizong, whereas hematite is rare in upper Linzizong. Volcanic rocks of the lower Linzizong have been hydrothermally chemically remagnetized, whereas the upper Linzizong retains a primary remanence. We suggest that remagnetization was induced by acquisition of chemical and thermoviscous remanent magnetizations such that the shallow inclinations are an artifact of a tilt correction applied to a secondary remanence in lower Linzizong. We estimate that the Paleogene latitude of Lhasa terrane was 204 degrees N, consistent with previous results suggesting that India-Asia collision likely took place by similar to 52Ma at similar to 20 degrees N.
Tectonics
10.1002/2014TC003787
0278-7407
1944-9194
wos:2015
WOS:000353837100013
Huang, WT (reprint author), Peking Univ, Sch Earth & Space Sci, Minist Educ, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China., W.Huang@uu.nl
U.S. NSF Continental Dynamics [EAR-1008527]; Netherlands Organization
for Scientific Research (NWO) [864.08.005, 864.11.004]; China
Scholarship Council; ERC [306810]; Alexander von Humboldt foundation;
Cai Yuanpei program; Chinese Ministry Of Education
Wentao Huang
Guillaume Dupont-Nivet
Peter C. Lippert
Douwe J. J. van Hinsbergen
Mark J. Dekkers
Ross Waldrip
Morgan Ganerod
Xiaochun Li
Zhaojie Guo
Paul Kapp
eng
uncontrolled
remagnetization
eng
uncontrolled
rock magnetism
eng
uncontrolled
geochronology
eng
uncontrolled
India-Asia collision
Institut für Geowissenschaften
Referiert
Institut für Erd- und Umweltwissenschaften
39379
2015
2015
eng
77
100
24
1
16
article
American Geophysical Union
Washington
1
--
--
--
Paleolatitudes of the Tibetan Himalaya from primary and secondary magnetizations of Jurassic to Lower Cretaceous sedimentary rocks
The Tibetan Himalaya represents the northernmost continental unit of the Indian plate that collided with Asia in the Cenozoic. Paleomagnetic studies on the Tibetan Himalaya can help constrain the dimension and paleogeography of "Greater India,' the Indian plate lithosphere that subducted and underthrusted below Asia after initial collision. Here we present a paleomagnetic investigation of a Jurassic (limestones) and Lower Cretaceous (volcaniclastic sandstones) section of the Tibetan Himalaya. The limestones yielded positive fold test, showing a prefolding origin of the isolated remanent magnetizations. Detailed paleomagnetic analyses, rock magnetic tests, end-member modeling of acquisition curves of isothermal remanent magnetization, and petrographic investigation reveal that the magnetic carrier of the Jurassic limestones is authigenic magnetite, whereas the dominant magnetic carrier of the Lower Cretaceous volcaniclastic sandstones is detrital magnetite. Our observations lead us to conclude that the Jurassic limestones record a prefolding remagnetization, whereas the Lower Cretaceous volcaniclastic sandstones retain a primary remanence. The volcaniclastic sandstones yield an Early Cretaceous paleolatitude of 55.5 degrees S [52.5 degrees S, 58.6 degrees S] for the Tibetan Himalaya, suggesting it was part of the Indian continent at that time. The size of "Greater India' during Jurassic time cannot be estimated from these limestones. Instead, a paleolatitude of the Tibetan Himalaya of 23.8 degrees S [21.8 degrees S, 26.1 degrees S] during the remagnetization process is suggested. It is likely that the remagnetization, caused by the oxidation of early diagenetic pyrite to magnetite, was induced during 103-83 or 77-67 Ma. The inferred paleolatitudes at these two time intervals imply very different tectonic consequences for the Tibetan Himalaya.
Geochemistry, geophysics, geosystems
10.1002/2014GC005624
1525-2027
wos:2015
WOS:000349839000005
Huang, WT (reprint author), Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Minist Educ, Beijing 100871, Peoples R China., W.Huang@uu.nl
U.S. NSF Continental Dynamics [EAR-1008527]; Netherlands Organization
for Scientific Research (NWO); ERC [306810]; Alexander von Humboldt
foundation; Cai Yuanpei program of the French ministries of foreign
affairs; Cai Yuanpei program of the French ministries of higher
education and research; Chinese ministry of education
Wentao Huang
Douwe J. J. van Hinsbergen
Mark J. Dekkers
Eduardo Garzanti
Guillaume Dupont-Nivet
Peter C. Lippert
Xiaochun Li
Marco Maffione
Cor G. Langereis
Xiumian Hu
Zhaojie Guo
Paul Kapp
Institut für Geowissenschaften
Referiert
Institut für Erd- und Umweltwissenschaften
39380
2015
2015
eng
42
66
25
1
120
article
American Geophysical Union
Washington
1
--
--
--
Can a primary remanence be retrieved from partially remagnetized Eocence volcanic rocks in the Nanmulin Basin (southern Tibet) to date the India-Asia collision?
Paleomagnetic dating of the India-Asia collision hinges on determining the Paleogene latitude of the Lhasa terrane (southern Tibet). Reported latitudes range from 5 degrees N to 30 degrees N, however, leading to contrasting paleogeographic interpretations. Here we report new data from the Eocene Linzizong volcanic rocks in the Nanmulin Basin, which previously yielded data suggesting a low paleolatitude (similar to 10 degrees N). New zircon U-Pb dates indicate an age of similar to 52Ma. Negative fold tests, however, demonstrate that the isolated characteristic remanent magnetizations, with notably varying inclinations, are not primary. Rock magnetic analyses, end-member modeling of isothermal remanent magnetization acquisition curves, and petrographic observations are consistent with variable degrees of posttilting remagnetization due to low-temperature alteration of primary magmatic titanomagnetite and the formation of secondary pigmentary hematite that unblock simultaneously. Previously reported paleomagnetic data from the Nanmulin Basin implying low paleolatitude should thus not be used to estimate the time and latitude of the India-Asia collision. We show that the paleomagnetic inclinations vary linearly with the contribution of secondary hematite to saturation isothermal remanent magnetization. We tentatively propose a new method to recover a primary remanence with inclination of 38.1 degrees (35.7 degrees, 40.5 degrees) (95% significance) and a secondary remanence with inclination of 42.9 degrees (41.5 degrees,44.4 degrees) (95% significance). The paleolatitude defined by the modeled primary remanence21 degrees N (19.8 degrees N, 23.1 degrees N)is consistent with the regional compilation of published results from pristine volcanic rocks and sedimentary rocks of the upper Linzizong Group corrected for inclination shallowing. The start of the Tibetan Himalaya-Asia collision was situated at similar to 20 degrees N and took place by similar to 50Ma.
Journal of geophysical research : Solid earth
10.1002/2014JB011599
2169-9313
2169-9356
wos:2015
WOS:000350152000003
Huang, WT (reprint author), Peking Univ, Key Lab Orogen Belts & Crustal Evolut, Minist Educ, Sch Earth & Space Sci, Beijing 100871, Peoples R China., W.Huang@uu.nl
U.S. NSF [EAR-1008527]; Netherlands Organization for Scientific Research
(NWO); China Scholarship Council; ERC [306810]; Marie Curie CIG
HIRESDAT; Alexander von Humboldt foundation; French Ministry of Foreign
Affairs; French Ministry of Higher Education and Research; Chinese
Ministry of Education
Wentao Huang
Guillaume Dupont-Nivet
Peter C. Lippert
Douwe J. J. van Hinsbergen
Mark J. Dekkers
Zhaojie Guo
Ross Waldrip
Xiaochun Li
Xiaoran Zhang
Dongdong Liu
Paul Kapp
eng
uncontrolled
remagnetization
eng
uncontrolled
paleomagnetism applied to tectonics
eng
uncontrolled
rock and mineral magnetism
eng
uncontrolled
India-Asia collision
Institut für Geowissenschaften
Referiert
Institut für Erd- und Umweltwissenschaften