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Geochimica木蟲 (正式寫手)
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[交流]
歡迎對古溫度計有研究或感興趣的朋友投摘要或參加我們的戈會session! 已有6人參與
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最近用地球化學手段重建古溫度有了很大的發(fā)展,例如基于有機分子的TEX86, Uk37',微 量元素Mg/Ca, Sr/Ca,非傳統(tǒng)的同位素Mg, Ca,以及clumped isotope等等的古溫度計紛紛 被提出以及應用在古氣候研究中。但是形成這些指標的化學和生物過程,并未被研究的十 分透徹。不同指標在相同樣品中的應用,也往往揭示它們有所異同。我們在明年加拿大蒙 特利爾的戈爾德斯密特會議的session,將專門討論這些話題。歡迎對這些問題有研究的朋 友投摘要或者參加討論! 我們session在theme10,編號10g。具體請看戈會網頁。 http://www.goldschmidt2012.org/ 10g. Paleotemperature proxies: processes and comparisons Co-convenors: Peter Douglas (Yale University) - peter.douglasatyale.edu Yige Zhang (Yale University) - yige.zhangatyale.edu Recently there has been a major expansion in the number of geochemical temperature proxies applied to paleoclimate studies, with techniques employing trace element ratios, the distribution of organic molecules, clumped isotopes and non-traditional stable isotopes, as well as new approaches to oxygen isotope paleothermometry. Nevertheless, there remains many fundamental questions regarding the underlying mechanisms controlling the temperature dependence of these chemical and biological systems, the seasonality and environment of their preserved temperature signal and the extent to which other environmental variables bias recorded temperatures. This session will focus on critical analyses of temperature proxy data that seek to improve our understanding of these techniques and their application to understanding past changes in the Earth's climate. We especially encourage studies that analyze modern materials to test and refine paleotemperature proxy techniques, and multi-proxy paleoclimate studies that seek to understand the relationship between different proxies. |

木蟲 (正式寫手)
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金蟲 (職業(yè)作家)
木蟲 (正式寫手)

木蟲 (正式寫手)

木蟲 (正式寫手)
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