ISL OpenIR  > 青海盐湖研究所知识仓储
Carbon isotopes in surface-sediment carbonates of modern Lake Qinghai(Qinghai-Tibet Plateau): Implications for lake evolution in arid areas
Li, Xiangzhong; Liu, Weiguo; Xu, Liming
2012
发表期刊CHEMICAL GEOLOGY
ISSN0009-2541
卷号300期号:*页码:88-96
摘要To further investigate the significance of carbon isotopes of lake carbonates in arid areas, we examined the carbon isotopic composition of ostracods, bulk carbonate, fine-grained carbonates, and associated water DIC (dissolved inorganic carbon) from Lake Qinghai and several small lakes and ponds surrounding Lake Qinghai. We obtained three major results. 1) The carbon isotopic compositions of ostracods, bulk carbonate, and fine-grained carbonates in the lakes and ponds are clearly correlated with water delta C-13(DIC) values, which vary with water salinity in the Lake Qinghai area. 2) The variation in the delta C-13(DIC) values of lake water is mainly controlled by CO2 exchanges between the atmosphere and lake waters in the Lake Qinghai area. 3) Ostracods, bulk carbonate and fine-grained carbonates show consistent trends of isotopic composition in the study area, and the differences in carbon isotopic composition between authigenic carbonates and ostracods may be explained by the differences in carbon isotopic composition between the DIC of surface water and that of the water near to the sediment-water interface as well as the 'vital offsets' of ostracods. To further investigate the significance of carbon isotopes of lake carbonates in arid areas, we examined the carbon isotopic composition of ostracods, bulk carbonate, fine-grained carbonates, and associated water DIC (dissolved inorganic carbon) from Lake Qinghai and several small lakes and ponds surrounding Lake Qinghai. We obtained three major results. 1) The carbon isotopic compositions of ostracods, bulk carbonate, and fine-grained carbonates in the lakes and ponds are clearly correlated with water delta C-13(DIC) values, which vary with water salinity in the Lake Qinghai area. 2) The variation in the delta C-13(DIC) values of lake water is mainly controlled by CO2 exchanges between the atmosphere and lake waters in the Lake Qinghai area. 3) Ostracods, bulk carbonate and fine-grained carbonates show consistent trends of isotopic composition in the study area, and the differences in carbon isotopic composition between authigenic carbonates and ostracods may be explained by the differences in carbon isotopic composition between the DIC of surface water and that of the water near to the sediment-water interface as well as the 'vital offsets' of ostracods.
关键词Carbon Isotopes Ostracods Bulk Carbonate Fine-grained Carbonates
收录类别SCI
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/2066
专题青海盐湖研究所知识仓储
推荐引用方式
GB/T 7714
Li, Xiangzhong,Liu, Weiguo,Xu, Liming. Carbon isotopes in surface-sediment carbonates of modern Lake Qinghai(Qinghai-Tibet Plateau): Implications for lake evolution in arid areas[J]. CHEMICAL GEOLOGY,2012,300(*):88-96.
APA Li, Xiangzhong,Liu, Weiguo,&Xu, Liming.(2012).Carbon isotopes in surface-sediment carbonates of modern Lake Qinghai(Qinghai-Tibet Plateau): Implications for lake evolution in arid areas.CHEMICAL GEOLOGY,300(*),88-96.
MLA Li, Xiangzhong,et al."Carbon isotopes in surface-sediment carbonates of modern Lake Qinghai(Qinghai-Tibet Plateau): Implications for lake evolution in arid areas".CHEMICAL GEOLOGY 300.*(2012):88-96.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
1-s2.0-S000925411200(932KB) 开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Li, Xiangzhong]的文章
[Liu, Weiguo]的文章
[Xu, Liming]的文章
百度学术
百度学术中相似的文章
[Li, Xiangzhong]的文章
[Liu, Weiguo]的文章
[Xu, Liming]的文章
必应学术
必应学术中相似的文章
[Li, Xiangzhong]的文章
[Liu, Weiguo]的文章
[Xu, Liming]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 1-s2.0-S0009254112000289-main[1].pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。