论文部分内容阅读
本文研究了北极阿拉斯加巴罗Ｅｌｓｏｎ湖钻孔沉积岩芯中化学元素的分布及其集散规律；粘粒、有机质环境要素与化学元素分布的相关性，以此讨论了巴罗地区过去４５０年环境气候变化。结果表明，大约１７４０年以前，巴罗地区为低海面寒冷时期。从１８２７年左右起气候显著变暖，其中１８６０年前后和１９２５年前后，气温较高；１９３５年和１９６９年前后气温较低。该研究将为重建巴罗地区过去几百年气候环境变化历史，预测未来气候变化趋势提供环境地球化学基础
In this paper, we study the distribution of chemical elements and their collection and distribution in Elson Lake boreal lake, North Alaska, and the correlation between clay and organic matter and chemical elements. Variety. The results show that around 1740 Barlow was a period of low sea-level cold. Since about 1827, the climate has been significantly warmer, with a higher temperature around 1860 and around 1925; lower temperatures around 1935 and 1969. The study will provide the foundations for environmental geochemistry for the reconstruction of climate change history in the Barrow area in the past few hundred years and for prediction of future climate change trends