Инд. авторы: | Ts. N., Krivonogov S.K., Ts. O., B. U., Burr G.S., D. T., Kh. D. |
Заглавие: | Late Glacial to Middle Holocene climate and environmental changes as recorded in Lake Dood sediments, Darhad Basin, northern Mongolia |
Библ. ссылка: | Ts. N., Krivonogov S.K., Ts. O., B. U., Burr G.S., D. T., Kh. D. Late Glacial to Middle Holocene climate and environmental changes as recorded in Lake Dood sediments, Darhad Basin, northern Mongolia // Quaternary International. - 2013. - Vol.311. - P.12-24. - ISSN 1040-6182. - EISSN 1873-4553. |
Внешние системы: | DOI: 10.1016/j.quaint.2013.08.043; SCOPUS: 2-s2.0-84884817558; |
Реферат: | eng: The paper presents new data on climatic, lake level and environmental changes in the Darhad Basin, northern Mongolia, during the Late Glacial and Early to Middle Holocene. Two cores, DN1 and DN2, from Lake Dood were investigated using the following proxies: grain size, total carbon (TC), total inorganic carbon (TIC), total organic carbon (TOC), total nitrogen (TN), total sulfur (TS), δ13C, δ18O and diatom. Our reconstructions indicate that dramatic climatic and environmental changes occurred several times since ca 14kacalBP. A cold and dry climate of the Late Glacial changed to a relatively cold and wet climate starting around 9.5kacal BP in response to an Early Holocene humidization. A generally warm and humid climate prevailed in the region at ca. 7.8-5.8kacal BP. Later on after 5.8kacal BP the climate became cooler and drier. The Darhad paleolake, the predecessor of Lake Dood, disappeared during the Late Glacial to Early Holocene times and started to reappear since ca. 9.5kacal BP. Lake Dood fluctuated considerably in response to changes in precipitation or/and in ground ice melting between 9.5 and 5.8kacal BP and started to decrease at 5.8kacal BP. © 2013 Elsevier Ltd and INQUA.
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Ключевые слова: | environmental change; Holocene; humid environment; late glacial; melting; Bacillariophyta; Mongolia; Hovsgol; Darhad Valley; total organic carbon; paleoenvironment; paleoclimate; climate variation; |
Издано: | 2013 |
Физ. характеристика: | с.12-24 |