Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2010
|
| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.792846 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867170936694767616 |
|---|---|
| author | Zhong, Wei Xue, Jibin Li, Xiaodong Xu, Huajun Ouyang, Yun |
| author_facet | Zhong, Wei Xue, Jibin Li, Xiaodong Xu, Huajun Ouyang, Yun |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The Barkol Lake, as a closed inland lake, is located at the northeast Xinjiang in northwest China. A combination of geochemical indicators including d18O and d13C of carbonate, TOC, carbonate contents, as well as grain size proxies and magnetic susceptibility of sediments obtained from a newly recovered section at this lake, provides a high-resolution history of climatic change in the past 9400 years. Multi-indicators reflect that Holocene climatic change in the study region generally follows the Westerly Wind pattern of Holocene, and three climatic periods can be identified. Between 9400 and 7500 cal a B.P., climate was characterized by relatively drier and colder condition. From 7500 to 5800 cal a B.P., a relatively warmer and moister climate prevailed, but between 5800 and 3500 cal a B.P., climate shifted towards warmer and drier conditions. A relatively colder and wetter climate prevailed during 3500~1000 cal a B.P., then it changed towards cold and dry between 1000 and 500 cal a B.P.; after 500 cal a B.P., climate changed towards warm and dry conditions again. This study reflects that during the Middle Holocene (from ca 7000 to 3500 cal a B.P.), variations of carbonate d18O of sediments from several lakes in the northern Xinjiang were synchronous with that of Qinghai Lake, where was strongly influenced by the South Asian monsoon; however, after 3500 cal a B.P. this consistency was interrupted, possibly resulting from a re-domination of the Westerly Wind and the retreat of South Asian monsoon in the northern Xinjiang. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_792846 |
| institution | PANGAEA |
| language | en |
| publishDate | 2010 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table) Radiocarbon datings of sediment core BLK-1 obtained from Barkol Lake, China Zhong, Wei Xue, Jibin Li, Xiaodong Xu, Huajun Ouyang, Yun Age, 14C calibrated, CALIB 4 (Stuiver et al., 1998); Age, 14C conventional; Age, dated; Age, dated, standard deviation; Age, dated material; Age, maximum/old; Age, minimum/young; Archive of Ocean Data; ARCOD; Barkol Lake, Siberia; BLK-1; Calendar age; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Sample code/label; Sample ID The Barkol Lake, as a closed inland lake, is located at the northeast Xinjiang in northwest China. A combination of geochemical indicators including d18O and d13C of carbonate, TOC, carbonate contents, as well as grain size proxies and magnetic susceptibility of sediments obtained from a newly recovered section at this lake, provides a high-resolution history of climatic change in the past 9400 years. Multi-indicators reflect that Holocene climatic change in the study region generally follows the Westerly Wind pattern of Holocene, and three climatic periods can be identified. Between 9400 and 7500 cal a B.P., climate was characterized by relatively drier and colder condition. From 7500 to 5800 cal a B.P., a relatively warmer and moister climate prevailed, but between 5800 and 3500 cal a B.P., climate shifted towards warmer and drier conditions. A relatively colder and wetter climate prevailed during 3500~1000 cal a B.P., then it changed towards cold and dry between 1000 and 500 cal a B.P.; after 500 cal a B.P., climate changed towards warm and dry conditions again. This study reflects that during the Middle Holocene (from ca 7000 to 3500 cal a B.P.), variations of carbonate d18O of sediments from several lakes in the northern Xinjiang were synchronous with that of Qinghai Lake, where was strongly influenced by the South Asian monsoon; however, after 3500 cal a B.P. this consistency was interrupted, possibly resulting from a re-domination of the Westerly Wind and the retreat of South Asian monsoon in the northern Xinjiang. |
| title | (Table) Radiocarbon datings of sediment core BLK-1 obtained from Barkol Lake, China |
| topic | Age, 14C calibrated, CALIB 4 (Stuiver et al., 1998); Age, 14C conventional; Age, dated; Age, dated, standard deviation; Age, dated material; Age, maximum/old; Age, minimum/young; Archive of Ocean Data; ARCOD; Barkol Lake, Siberia; BLK-1; Calendar age; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Sample code/label; Sample ID |
| url | https://doi.org/10.1594/PANGAEA.792846 |