Sedimentary Feature in Lake Terkhiin Tsagaan ...

URL: http://portal.igg.ac.mn/dataset/897fa2e3-ea3e-48af-8994-dc78c1b90d4d/resource/1558a960-916f-4d08-a5f0-5b39fb39b608/download/davaagatan_et_al_2016.pdf

We present characteristics of lacustrine sediments recorded from Lake Terkhiin Tsagaan and Lake Ugii at near latitudes in Central Mongolia. Physical-chemical properties of eight core sediments collected from these lakes show impact of different montane and prairie landscapes on the lacustrine sediments. Lake Terkhiin Tsagaan indicating a montane landscape with higher contents of organic matter and biogenic silica, and finer sediments differs from Lake Ugii reflecting a prairie landscape with higher contents of carbonates and minerals, and coarser sediments. Stratigraphical sequences of the lacustrine sediments recommend that these two lakes have experienced a numerous of environmental conditions during the arid mid Holocene and humid late Holocene reconstructed from the adjacent lakes in Central Mongolia. These Holocene climatic changes inferred from dramatic fluctuations in temperature and precipitation might have been responsible for the identical environmental conditions, resulting in the sedimentary feature in Lake Terkhiin Tsagaan and Lake Ugii. More investigations with precise dating are thus needed from the both lakes for determining lacustrine sedimentations and reconstructing paleoenvironmental changes in Central Mongolia.

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Талбар Утга
Өгөгдлийн сүүлийн шинэчлэл 2018 9-р сар 26
Мета өгөгдөлийн сүүлийн шинэчлэл 2018 9-р сар 26
Үүссэн 2018 9-р сар 26
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