scholarly journals Paleoclimatological and Geoarchaeological Significance of the Holocene Loess – Soil Successions of the Tien Shan Foothills of Uzbekistan

2016 ◽  
Vol 33 (1) ◽  
pp. 57-68 ◽  
Author(s):  
Fabian Welc ◽  
Khodjiakbar Toychiew ◽  
Małgorzata Suska-Malawska ◽  
Leszek Marks ◽  
Monika Mętrak

AbstractScenario of climate changes in the Late Pleistocene and Holocene in Central Asia is very fragmentary and inconsistent. Therefore, interaction between the development and decline of ancient cultures and the climate fluctuations are difficult to be traced. To resolve this problem, the key role can be played by multidisciplinary studies of unique Late Pleistocene and especially Holocene loess – soil succession of the Tien Shan foothills in Uzbekistan. This area yields unique successions of paleosols interbedded with loesses that are particularly useful for paleoclimate analysis. They are represented by continuous and uninterrupted sedimentary sequences with a highly varied record of magnetic susceptibility. As such, they contain a full sequence of short-term climatic oscillations of the Holocene in high resolution and therefore, in this case, they are exceptional on global scale. The correlation of Late Pleistocene and Holocene climate changes scenario with stages of development and collapse of the past human settlement in Central Asia seems at present one of the most promising research directions, in line with the substantial course of interdisciplinary research on the interaction between humans and the natural environment.

2017 ◽  
Vol 60 (7) ◽  
pp. 1317-1327 ◽  
Author(s):  
Yan Zhao ◽  
YaoLiang Liu ◽  
ZhengTang Guo ◽  
KeYan Fang ◽  
Quan Li ◽  
...  

2017 ◽  
Author(s):  
Ana Trobec ◽  
Martina Busetti ◽  
Fabrizio Zgur ◽  
Luca Baradello ◽  
Alberto Babich ◽  
...  

Abstract. We use various geophysical datasets (multibeam and singlebeam echosounder data, sub-bottom profiling Chirp and sonar data and very high resolution boomer seismic data) along with published sedimentological data and depth data from nautical charts in order to create models of the depth of the seafloor and the base of Holocene marine sediment in the Gulf of Trieste. The two models are later used in order to calculate the thickness of marine Holocene sediment which has been depositing on the Late Pleistocene alluvial plain since the Holocene transgression in the Italian and Slovenian part of the gulf. Thicker Holocene marine sedimentary sequences averaging at around 5 meters are characteristic for the SE part of the gulf. In other parts of the gulf the Holocene marine sedimentary cover is very thin or even absent, except in close proximity of the shoreline and fluvial sediment sources, in the area of the Trezza Grande paleodelta and above topographic depressions of the Late Pleistocene base. The presented datasets available from the OGS SNAP data repository (https://doi.org/10.6092/6ad9b1e6-c977-cec9-8a2d-db10c7f90adc) represent a valuable reference for a wide variety of research disciplines dealing with the dynamic Earth system in the Gulf of Trieste and could use as a valuable tool for designing sampling and geophysical campaigns in the studied area.


2018 ◽  
Vol 10 (2) ◽  
pp. 1077-1092 ◽  
Author(s):  
Ana Trobec ◽  
Martina Busetti ◽  
Fabrizio Zgur ◽  
Luca Baradello ◽  
Alberto Babich ◽  
...  

Abstract. We use various geophysical datasets (multibeam and singlebeam echosounder data, sub-bottom profiling Chirp and sonar data and very high-resolution boomer seismic data) along with published sedimentological data and depth data from nautical charts in order to create models of the depth of the seafloor and the base of Holocene marine sediment in the Gulf of Trieste. The two models are later used in order to calculate the thickness of marine Holocene sediment which has been depositing on the Late Pleistocene alluvial plain since the Holocene transgression in the Italian and Slovenian parts of the gulf. Thicker Holocene marine sedimentary sequences averaging at around 5 m are characteristic for the southeastern part of the gulf. In other parts of the gulf the Holocene marine sedimentary cover is very thin or even absent, except in close proximity to the shoreline and fluvial sediment sources, in the area of the Trezza Grande paleodelta and above topographic depressions of the Late Pleistocene base. The presented datasets available from the OGS SNAP data repository (http://doi.org/cpz2) represent a valuable reference for a wide variety of research disciplines dealing with the dynamic Earth system in the Gulf of Trieste and could be used as a valuable tool for designing sampling and geophysical campaigns in the studied area.


2018 ◽  
Vol 70 (1) ◽  
Author(s):  
Guanhua Li ◽  
Dunsheng Xia ◽  
Erwin Appel ◽  
Youjun Wang ◽  
Jia Jia ◽  
...  

1995 ◽  
Vol 100 (B10) ◽  
pp. 20321-20343 ◽  
Author(s):  
Albert A. Lukk ◽  
Sergei L. Yunga ◽  
Vladimir I. Shevchenko ◽  
Michael W. Hamburger

Geology ◽  
1990 ◽  
Vol 18 (2) ◽  
pp. 128 ◽  
Author(s):  
B. F. Windley ◽  
M. B. Allen ◽  
C. Zhang ◽  
Z-Y Zhao ◽  
G-R Wang
Keyword(s):  

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