Reconstruction of palaeoecological and palaeoclimatic conditions of the Holocene in the south of the Taimyr according to an analysis of lake sediments
Reconstruction of palaeoecological and palaeoclimatic conditions of the Holocene in the south of the Taimyr according to an analysis of lake sediments
复制标题
根据湖泊沉积物分析重建泰米尔河南部全新世古生态和古气候条件
DOI:
10.1134/s1995425517040114
复制
发表时间:
2017
影响因子:
0.8
通讯作者:
I. Grekov
中科院分区:
文献类型:
--
作者:
L. Syrykh;L. Syrykh;Larisa B Nazarova;Larisa B Nazarova;U. Herzschuh;Dmitry A Subetto;Dmitry A Subetto;I. Grekov
A sediment core from Khatanga-12 Lake (Taimyr Peninsula, Krasnoyarsk krai) has been studied. The 131.5-cm-long core covers ca. 7100 years of sedimentation. Chironomid analysis, a qualitative reconstruction of the paleoenvironment in the region, and a quantitative reconstruction of variations of the mean July air temperature and in the water depth of the lake have been performed using Northern Russia chironomid-inferred mean July temperature models (Nazarova et al., 2008, 2011, 2015). Khatanga-12 Lake was formed during the Middle Holocene warming as a result of thermokarst processes. The development of the lake ecosystem at different stages of its development was influenced by climatic and cryolithogenic factors. The Middle Holocene warming, which occurred around 7100–6250 cal. years BP, activated thermokarst processes and resulted in the formation of the lake basin. Later, between 6250 and 4500 cal. years BP, a period of cooling took place, as is proved by chironomid analysis. The bottom sediments of the lake during this period were formed by erosion processes on the lake shores. The reconstructed conditions were close to the modern after 2500 cal. years BP.
影响因子:
3.9
作者:
L. Nazarova;A. Self;S. Brooks;M. Hardenbroek;U. Herzschuh;B. Diekmann
通讯作者:
L. Nazarova;A. Self;S. Brooks;M. Hardenbroek;U. Herzschuh;B. Diekmann
影响因子:
0.8
作者:
Frolova;Nazaroa;Pestryakova;Herzschuh
通讯作者:
Herzschuh