Noble Gas Paleotemperatures and Other Climate Information Derived from Groundwater Archives on the Southern Hemisphere(Southern Africa and Australia)

来自南半球（南非和澳大利亚）地下水档案的稀有气体古温度和其他气候信息

• 批准号: 9304573
• 负责人: Martin Stute
• 金额: $ 23.86万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-09-01 至 1996-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9304573&HistoricalAwards=false
• 关键词: Noble; Gas; Paleotemperatures; Other; Climate

9304573 Stute Groundwater circulating in extended confined aquifers contains information on past climates. Noble gas measurements, in particular, allow reconstruction of continental paleotemperatures ('noble gas paleothermometer'). Cl- and isotopic data (D), 18O) provide additional insight into long-term climate change. This award supports the collection and evaluation of geochemical data (He, Ne, Ar, Kr, Xe, 14C, 13C D, 18O, 36Cl and major dissolved ions) from two groundwater flow systems in the southern hemisphere, the Stampriet aquifer in Namibia and the Dilwyn aquifer in southern Australia. Paleoclimate records from these aquifers will address the relationship between continental and oceanic paleotemperatures and the latitudinal symmetry of climate change during the past 30,000 years.

9304573 Stute在扩展的承压含水层中循环的地下水包含过去气候的信息。特别是稀有气体测量，可以重建大陆古温度（“稀有气体古温度表”）。Cl-和同位素数据(D), 18O)提供了对长期气候变化的进一步了解。该奖项支持收集和评估来自南半球两个地下水流动系统（纳米比亚的Stampriet含水层和澳大利亚南部的Dilwyn含水层）的地球化学数据（He、Ne、Ar、Kr、Xe、14C、13cd、18O、36Cl和主要溶解离子）。这些含水层的古气候记录将解决大陆和海洋古温度之间的关系以及过去3万年气候变化的纬度对称性。