Articles | Volume 13, issue 1
https://doi.org/10.5194/cp-13-73-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/cp-13-73-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
18 Jan 2017
Research article |
| 18 Jan 2017
High-amplitude lake-level changes in tectonically active Lake Issyk-Kul (Kyrgyzstan) revealed by high-resolution seismic reflection data
Andrea Catalina Gebhardt
CORRESPONDING AUTHOR
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, 27576 Bremerhaven, Germany
Lieven Naudts
Royal Belgian Institute of Natural Sciences, Operational Directorate Natural Environment (RBINS–OD Nature),
8400 Ostend, Belgium
Renard Centre of Marine Geology, Universiteit Gent, 9000 Ghent, Belgium
Lies De Mol
Renard Centre of Marine Geology, Universiteit Gent, 9000 Ghent, Belgium
Jan Klerkx
International Bureau for Environmental Studies (IBES), 1090 Brussels, Belgium
Kanatbek Abdrakhmatov
Kyrgyz Institute of Seismology, Bishkek,
Kyrgyzstan
Edward R. Sobel
Institut für Erd- und Umweltwissenschaften, International Universität Potsdam, 14476 Potsdam, Germany
Marc De Batist
Renard Centre of Marine Geology, Universiteit Gent, 9000 Ghent, Belgium
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We present a continuous record of lake sediments spanning the Holocene from central west Patagonia. By examining various indicators like elemental composition and grain size data, we found that, around ~5500 years ago, the way sediments settled in the lake changed. On a regional scale, our results suggest that rainfall, influenced by changes in the Southern Hemisphere Westerly Winds, played a key role in shaping the environment of the region for the past ~10 000 years.
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Field skills training is an integral part of geoscience education, but long field courses away from home can be barriers to accessing that education and mean that students do not get regular field skills practice. We built the Rock Garden, an on-campus field course at Ghent University, Belgium, to make our field skills training more accessible. Here, we present preliminary data that suggest on-campus field skills training provision can increase students' confidence during real-world fieldwork.
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D. Mottaghy, G. Schwamborn, and V. Rath
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G. Schwamborn, G. Fedorov, N. Ostanin, L. Schirrmeister, A. Andreev, and the El'gygytgyn Scientific Party
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F. Gasse, L. Vidal, A.-L. Develle, and E. Van Campo
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Short summary
Seismic profiles from the western and eastern deltas of Lake Issyk-Kul were used to identify lake-level changes of up to 400 m. Seven stratigraphic sequences were identified, each containing a series of delta lobes that were formed during former lake-level stillstands. Lake-level fluctuations point to significant changes in the strength and position of the Siberian High and the mid-latitude Westerlies. Their interplay is responsible for the amount of moisture that reaches this area.
Seismic profiles from the western and eastern deltas of Lake Issyk-Kul were used to identify...
