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通过以3~5年的分辨率分析沉积岩心中的介形类甲壳动物的氧同位素值,建立了过去200年间德国南部阿默湖(LakeAmmersee)湖水氧同位素值的详细历史。经验分析及该湖的同位素水文学模拟显示出湖水的氧同位素组成主要由当地沉积物的同位素组成所控制。在过去200年间,该湖的同位素记录与位于湖泊汇水区内的HohenpeiBenberg的气温记录密切相关。这样,已有过去20年资料记录的欧洲中部的沉积物18O与气温之间的关系就可扩展到更长的时间以及更大的温度范围。该结果为将阿默湖沉积物中介形类甲壳动物的δ18O作为年均气温的定量替代值的有效性提供了进一步支持,它大约可延伸到末次冰期。
A detailed history of the oxygen isotope values of Lake Ammersee lakes over the past 200 years in the past 200 years has been established by analyzing the oxygen isotopic values of the crustacean crustaceans in sedimentary cores at 3 to 5 years of resolution. Empirical analysis and isotopic hydrological modeling of the lake show that the oxygen isotope composition of the lake is dominated by the isotopic composition of the local sediments. In the past 200 years, the isotope record of the lake is closely related to the temperature record of HohenpeiBenberg located in the catchment of the lake. Thus, the correlation between 18O and temperature in central Europe, which has been recorded for the past 20 years, can be extended to a longer period of time and to a greater temperature range. This result provides further support for the validity of δ18O in the mesoliposome crustacean sediments of Am Lake as a quantitative proxy for annual mean temperature, which extends approximately to the last glacial period.