Palynological evidence for late Miocene stepwise aridification on the northeastern Tibetan Plateau
نویسندگان
چکیده
منابع مشابه
Differential growth of the northern Tibetan margin: evidence for oblique stepwise rise of the Tibetan Plateau
Models of how high elevations formed across Tibet predict: (a) the continuous thickening of a "viscous sheet"; (b) time-dependent, oblique stepwise growth; and (c) synchronous deformation across Tibet that accompanied collision. Our new observations may shed light on this issue. Here, we use 40Ar/39Ar and (U-Th)/He thermochronology from massifs in the hanging walls of thrust structures along th...
متن کاملPhylogeographic Evidence for a Link of Species Divergence of Ephedra in the Qinghai-Tibetan Plateau and Adjacent Regions to the Miocene Asian Aridification
The Qinghai-Tibetan Plateau (QTP) has become one of the hotspots for phylogeographical studies due to its high species diversity. However, most previous studies have focused on the effects of the Quaternary glaciations on phylogeographical structures and the locations of glacial refugia, and little is known about the effects of the aridization of interior Asia on plant population structure and ...
متن کاملMiddle Miocene reorganization of deformation along the northeastern Tibetan
Temporal variations in the orientation of Cenozoic range growth in northeastern Tibet defi ne two modes by which India-Asia convergence was accommodated. Thermochronological age-elevation transects from the hanging walls of two major thrust-fault systems reveal diachronous Miocene exhumation of the Laji-Jishi Shan in northeastern Tibet. Whereas accelerated growth of the WNW-trending eastern Laj...
متن کاملLightning Discharges in the Northeastern Verge of Tibetan Plateau
In the summer of 2002, a comprehensive observation on natural lightning discharges was conducted in the northeastern verge of Qinghai-Tibetan Plateau. The thunderstorm is usually shows an inverted bipolar charge structure. The stepped leader develops downward to ground with multi-branches with a 2-D velocity of 0.8-1.2×10 m/s and more than one striking point on the ground was often observed as ...
متن کاملMitochondrial genome evidence reveals successful Late Paleolithic settlement on the Tibetan Plateau.
Due to its numerous environmental extremes, the Tibetan Plateau--the world's highest plateau--is one of the most challenging areas of modern human settlement. Archaeological evidence dates the earliest settlement on the plateau to the Late Paleolithic, while previous genetic studies have traced the colonization event(s) to no earlier than the Neolithic. To explore whether the genetic continuity...
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ژورنال
عنوان ژورنال: Climate of the Past
سال: 2016
ISSN: 1814-9332
DOI: 10.5194/cp-12-1473-2016