Neotectonic Deformation in the Southwestern Tian Shan, Western China: Evidence From Paleomagnetic Study of Quaternary Sediments From the Mingyaole Anticline

Tectonics ◽  
2019 ◽  
Vol 38 (7) ◽  
pp. 2540-2554
Author(s):  
Q. Q. Qiao ◽  
J. D. A. Piper ◽  
B. C. Huang ◽  
M. J. Wu ◽  
S. B. Liao ◽  
...  
Keyword(s):  
Western China ◽  
Quaternary Sediments ◽  
Paleomagnetic Study ◽  
Neotectonic Deformation ◽  
Tian Shan

Neotectonic deformation in the Southwestern Tian Shan, Western China: evidence from paleomagnetic study of Quaternary sediments from the Mingyaole Anticline

2020 ◽  
Author(s):  
Qingqing Qiao
Keyword(s):  
Tarim Basin ◽  
Vertical Axis ◽  
Western China ◽  
North West ◽  
The North ◽  
Paleomagnetic Study ◽  
Neotectonic Deformation ◽  
Kashi Depression ◽  
The Right ◽  
Tian Shan

<p>This paleomagnetic study is located at the north-west extremity of the Tarim Basin and has aimed to constrain the style of Neotectonic deformation where indentation of the Pamir Orogen into the southward-verging Tian Shan frontal zone has produced a complex zone of thrusting, folding and strike-slip. Sampling focused on two Pliocene to Pleistocene sedimentary formations folded across the Mingyaole Anticline, the major structural feature between the two frontal zones, has yielded well-grouped characteristic remanent magnetizations at 18 of 24 sites and a positive fold test. Together with fabric evidence, the results indicate a probable post-depositional detrital origin for the remanence. The results show that only small inter-locational vertical-axis rotations have occurred within the Kashi-Atushi fold and thrust system since the Miocene and imply that the Kashi depression has behaved as a quasi-rigid block. A common 15-30º counterclockwise (CCW) rotation relative to Eurasia since the Miocene of the Kashi Depression and the bordering Tian Shan range proves to be unrelated to the right lateral motion along the Talas-Ferghana intracontinental transform fault to the north west. This contrast is provisionally interpreted as taking place along a transfer fault between different segments of the thrust belt. Ongoing CCW rotation of the Tarim Basin is interpreted as a regional response to impingement by northward movement of the larger Tibetan Block to the south east.</p>

14.6 MA ARIDIFICATION AND DEVELOPMENT OF THE ANCESTRAL TAKLIMAKAN DESERT BETWEEN THE PAMIR AND TIAN SHAN OROGENS, WESTERN CHINA

2017 ◽  
Author(s):  
Richard V. Heermance ◽  
◽  
Jozi Pearson ◽  
Marius Vilkas ◽  
Annelisa Moe ◽  
...  
Keyword(s):  
Western China ◽  
Taklimakan Desert ◽  
Tian Shan

Natural Dust and Pneumoconiosis in High Asia

2003 ◽  
Author(s):  
Edward Derbyshire
Keyword(s):  
Loess Plateau ◽  
Yellow River ◽  
Western China ◽  
Human Populations ◽  
The Loess Plateau ◽  
The North ◽  
High Asia ◽  
Uplift Rates ◽  
Few Data ◽  
Tian Shan

High Asia, defined here as that great tract of land from the Himalaya- Karakoram in the south to the Tian Shan in the north and the Pamir in the west to the Qinling Mountains in the east, is a very dusty place. Whole communities of people in this region are exposed to the adverse effects of natural (aerosolic) dusts at exposure levels reaching those encountered in some high-risk industries. Outdooor workers are at particular risk. However, few data are available on the magnitude of the dust impact on human health. The effect of such far-travelled particles on the health of the human population in the Loess Plateau, and including major Chinese cities, has received relatively little attention to date. A combination of the highest known uplift rates, rapid river incision (up to 12 mm/yr: Burbank et al. 1996), unstable slopes, glaciation and widespread rock breakup by crystal growth during freezing (frost action), and by hydration of salts (salt weathering) makes the High Asia region the world’s most efficient producer of silty (defined as between 2 and 63 μm) debris. The earliest written records of the dust hazard come from China, most notably in the “Yu Gong” by Gu Ban (ca 200 BC) (Wang and Song 1983). Here, deposits of wind-blown silt (known as ‘loess’) cover the landscape in a drape that is locally 500 m thick. In North China, the loess covers an area of over 600,000 km², most of it in the Loess Plateau, situated in the middle reaches of the Huang He (Yellow River). The characteristic properties of loess include high porosity and collapsibility on wetting (Derbyshire et al. 1995, Derbyshire and Meng 2000).Thus, it is readily reworked and redistributed by water. This process concentrates silts in large alluvial fans (up to 50 x 50 km) in the piedmont zones of 6,000 m high glacier- and snow-covered mountain ranges of western China, including the Altai Shan (‘shan’ = mountains), Tian Shan, Kunlun Shan, Qilian Shan, and Karakoram. These zones are loci for human populations, and also a major source of wind-blown dust.

Notes on the genus Hyalolaena (Apiaceae) with description of a new species H. zhang-minglii from Xinjiang, western China

Phytotaxa ◽  
2019 ◽  
Vol 388 (3) ◽  
pp. 229
Author(s):  
DMITRY LYSKOV ◽  
EUGENE KLJUYKOV ◽  
ULIANA UKRAINSKAJA ◽  
KOMILJON TOJIBAEV
Keyword(s):  
New Species ◽  
Western China ◽  
Short Root ◽  
A New Species ◽  
Secretory Ducts ◽  
Tian Shan

Hyalolaena zhang-minglii (Apiaceae) is described and illustrated as a new species from the Eastern Tian Shan, Narat Range, China. The species is related to H. issykkulensis but differs by filiform terminal segments of basal leaves, equal narrow-winged fruit ribs, short root, and greater number of secretory ducts on commissural side of mericarp. Hyalolaena depauperata is synonymized under H. jaxartica. Two species of Hyalolaena, namely H. bupleuroides and H. intermedia, are newly recorded for Uzbekistan.

Magnetostratigraphic study of the Kuche Depression, Tarim Basin, and Cenozoic uplift of the Tian Shan Range, Western China

2006 ◽  
Vol 251 (3-4) ◽  
pp. 346-364 ◽  
Author(s):  
B HUANG ◽  
J PIPER ◽  
S PENG ◽  
T LIU ◽  
Z LI ◽  
...  
Keyword(s):  
Tarim Basin ◽  
Western China ◽  
Kuche Depression ◽  
Tian Shan
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