scholarly journals Paleomagnetic study of Mesozoic continental sediments along the northern Tien Shan (China) and heterogeneous strain in central Asia

1991 ◽  
Vol 96 (B3) ◽  
pp. 4065-4082 ◽  
Author(s):  
Yan Chen ◽  
Jean-Pascal Cogne ◽  
Vincent Courtillot ◽  
Jean-Philippe Avouac ◽  
Paul Tapponnier ◽  
...  
Keyword(s):  
Central Asia ◽  
Tien Shan ◽  
Paleomagnetic Study ◽  
Northern Tien Shan

Empirical relationship between particulate matter and aerosol optical depth over Northern Tien-Shan, Central Asia

2012 ◽  
Vol 6 (2) ◽  
pp. 385-396 ◽  
Author(s):  
Boris B. Chen ◽  
Leonid G. Sverdlik ◽  
Sanjar A. Imashev ◽  
Paul A. Solomon ◽  
Jeffrey Lantz ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Central Asia ◽  
Aerosol Optical Depth ◽  
Optical Depth ◽  
Empirical Relationship ◽  
Tien Shan ◽  
Northern Tien Shan

scholarly journals Tracing glacier wastage in the Northern Tien Shan (Kyrgyzstan/Central Asia) over the last 40 years

2007 ◽  
Vol 86 (1-2) ◽  
pp. 227-234 ◽  
Author(s):  
Peter Niederer ◽  
Viktor Bilenko ◽  
Natasha Ershova ◽  
Hans Hurni ◽  
Sergeji Yerokhin ◽  
...  
Keyword(s):  
Central Asia ◽  
Tien Shan ◽  
Northern Tien Shan

Thermo-tectonic history of the Issyk-Kul basement (Kyrgyz Northern Tien Shan, Central Asia)

2013 ◽  
Vol 23 (3) ◽  
pp. 998-1020 ◽  
Author(s):  
Johan De Grave ◽  
Stijn Glorie ◽  
Mikhail M. Buslov ◽  
Daniel F. Stockli ◽  
Michael O. McWilliams ◽  
...  
Keyword(s):  
Central Asia ◽  
Tien Shan ◽  
Tectonic History ◽  
History Of ◽  
Northern Tien Shan

Late Neogene climatic features recorded by isotope records in the Issyk Kul basin, Kyrgyzstan. 

2021 ◽  
Author(s):  
Anna Kudriavtseva ◽  
Edward Sobel ◽  
Alexandru Codilean ◽  
Sophie Roud ◽  
Michael Wack ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Central Asia ◽  
Late Miocene ◽  
Lacustrine Sediments ◽  
Tien Shan ◽  
Early Pleistocene ◽  
Windward Side ◽  
Published Data ◽  
Late Neogene ◽  
Northern Tien Shan

<p>We present two carbonate oxygen and carbon isotope records from late Miocene – early Pleistocene stratigraphic sections from the southern flank of the Issyk Kul basin, Kyrgyz Tien Shan. The two sections are 700 and 500 m thick and composed of fluvial and lacustrine sediments. They were dated using magnetostratigraphy (Roud et al., G-Cubed, in review) and <sup>26</sup>Al/<sup>10</sup>Be isochron burial dating (presented here).</p><p>Carbonate stable isotope data is useful for reconstruction of climate in Asia over the Cenozoic. Oxygen isotopes are commonly used to detect moisture sources and their interaction with topography. Pedogenic carbon isotopes are used to reconstruct past atmospheric CO<sup>2</sup> levels or the spread of C4 vegetation.</p><p>The environment of Central Asia is primarily affected by the northern mid-latitude westerlies − winds transporting moisture eastward across Eurasia. Issyk Kul basin is situated on the windward side of the northern Tien Shan. Published data suggest that the Tien Shan mountain ranges interacted with the westerlies since late Oligocene and reorganized Central Asian climate during Neogene (Caves et al., 2017; Charreau et al., 2012; Macaulay et al., 2016; Wang, et al., 2020). The amount of existing published paleoclimate data from northern Central Asia is scarce compared to interior China, and therefore the influence of the Tien Shan uplift on climate in Asia during the Cenozoic is poorly reconstructed.</p><p>Our data provide new insight into the role of the range and its interaction with the westerlies in forming climate on the windward side of the northern Tien Shan in the late Neogene. We combine our data with published stratigraphically-older sections nearby (Macaulay et al., 2016) to complete the Neogene stable isotope record of the Issyk Kul basin and study how the evolution of the basin influenced regional climate.</p><p>Our d18O and d13C values show slightly positive trends, unlike stratigraphically-older data from the Issyk Kul basin. The preliminary interpretation suggests that the circulation pattern within the range was changed in late Miocene possibly reflecting active tectonic uplift northward of the basin and an increase in aridification.</p>

scholarly journals A comparison of three methods of mass-balance determination in the Tuyuksu glacier region, Tien Shan, Central Asia

2004 ◽  
Vol 50 (171) ◽  
pp. 505-510 ◽  
Author(s):  
Wilfried J. Hagg ◽  
Ludwig N. Braun ◽  
Vladimir N. Uvarov ◽  
Konstantin G. Makarevich
Keyword(s):  
Mass Balance ◽  
Central Asia ◽  
High Accuracy ◽  
Tien Shan ◽  
Specific Mass ◽  
Volume Balance ◽  
Over 40 Years ◽  
Runoff Model ◽  
Northern Tien Shan

AbstractA photogrammetric survey in 1998 formed the basis for compiling a map of the Tuyuksu glacier region in the northern Tien Shan, Central Asia. Comparison with a map from 1958 enables calculation of the change in glacier volume over 40 years. The results are compared with direct annual measurements carried out continuously since 1956. Central Tuyuksu glacier shows a mass balance of –12.6 mw.e. for the geodetic method and –16.8 m for glaciological measurements. In view of the high accuracy of the maps, the discrepancy can be explained mainly by deficiencies in the glaciological measurements. Application of the precipitation–runoff model HBV-ETH represents the hydrological method of mass-balance determination and delivers specific mass-balance losses almost twice those indicated by the geodetic observations. This discrepancy is suspected to be caused by erroneous runoff measurements. The volume balance derived by the geodetic method is used to calibrate both the glaciological and the hydrological method.

scholarly journals High Mountain Asian glacier response to climate revealed by multi-temporal satellite observations since the 1960s

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Atanu Bhattacharya ◽  
Tobias Bolch ◽  
Kriti Mukherjee ◽  
Owen King ◽  
Brian Menounos ◽  
...  
Keyword(s):  
Mass Loss ◽  
River Flow ◽  
Tien Shan ◽  
High Mountain ◽  
Glacier Mass Balance ◽  
Temperature And Precipitation ◽  
Multi Temporal ◽  
The 1960S ◽  
Northern Tien Shan

AbstractKnowledge about the long-term response of High Mountain Asian glaciers to climatic variations is paramount because of their important role in sustaining Asian river flow. Here, a satellite-based time series of glacier mass balance for seven climatically different regions across High Mountain Asia since the 1960s shows that glacier mass loss rates have persistently increased at most sites. Regional glacier mass budgets ranged from −0.40 ± 0.07 m w.e.a−1 in Central and Northern Tien Shan to −0.06 ± 0.07 m w.e.a−1 in Eastern Pamir, with considerable temporal and spatial variability. Highest rates of mass loss occurred in Central Himalaya and Northern Tien Shan after 2015 and even in regions where glaciers were previously in balance with climate, such as Eastern Pamir, mass losses prevailed in recent years. An increase in summer temperature explains the long-term trend in mass loss and now appears to drive mass loss even in regions formerly sensitive to both temperature and precipitation.

Titanomagnetites and ilmenites from the Early Cenozoic basalts and limburgites of the Northern Tien Shan

2011 ◽  
Vol 47 (6) ◽  
pp. 475-487 ◽  
Author(s):  
A. F. Grachev ◽  
D. M. Pechersky ◽  
V. A. Tsel’movich
Keyword(s):  
Tien Shan ◽  
Early Cenozoic ◽  
Northern Tien Shan
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