晚更新世以来古气候变化对长江中游故道区冲湖积含水层中碘富集的控制作用
摘要
The presence of geogenic high iodine groundwater in alluvial aquifers in the middle reach of the Yangtze River poses a serious threat to regional water supply security.Iron minerals and organic matter in aquifer sediments are the main carriers of iodine, and revealing the control mechanism of climate change on iodine enrichment in aquifers since the Late Pleistocene from the perspective of regional-geological background and sedimentary evolution is a prerequisite for scientific understanding of the causes of high iodine groundwater and ensuring water supply security.In this study, Quaternary sediments in the distribution area of high iodine groundwater in the middle reach of the Yangtze River were collected, and sediment geochemistry was systematically 基金项目： 国家自然科学基金国际(地区)合作与交流项目(No.42020104005).