• 责任者：Zhu Zhengjie (State Key Laboratory of Environmental Geochemistry ; Institute of Geochemistry ; Chinese Academy of Sciences ; Guiyang 550002 ; China) ; Chen Jing’an
• 刊名：Marine Geology & Quaternary Geology
• 出版年：2011
• 卷期：31(4)
• 关键词：介形亚纲 ; Ostracoda ; 湖泊沉积物 ; lake sediments ; 青海湖 ; Qinghai Lake
• 页码：p.149-154
• 图表：5 illus., 1 table, 26 refs.
• 分类号：1400
• issnNo：ISSN0256-1492
• isbnNo：CN37-1117/P

Based on the oxygen isotopic values and Li/Ca ratios from ostracod shells of the species of Eucypris inflate in Lake Qinghai, temperature and precipitation variations during the past millennium in this catchment were reconstructed. The correlation (r=0.5, n=59, p<0.01) between Li/Ca ratios and δ¹⁸O values of ostracod shells indicates that temperature changes corresponded well with precipitation variations during the past millennium. Synchronous variations of temperature and precipitation are also observed in the local meterological records and the climatic parameters inferred from Delingha and Dulan tree ring widths. The authors believe that the synchronous variation as such is a sole feature of East Asian summer monsoon, although the factors controlling this feature deserve further study.