Geochemical Analysis of Ancient Salt Deposits from the Dead Sea and its Climate and Hydrology During Warmer Periods in the Past 200,000 Years

国际大陆科学钻探项目（ICDP）对死海地下460米长的钻芯进行了化学分析，由此可以推断出中东地区过去20万年的气候和水文情况。11万5千到13万年前沉积的厚厚的盐层意味着干旱。中东在这段时间内的气候和水文可以与其他地区的结果进行比较，以了解它们是如何在全球范围内联系起来的。利用过去的证据可以检验我们的理论，并扩大我们对未来气候如何反应的理解。该项目将通过约旦和以色列学生的参与加强当前和未来的国际科学合作。死海钻探项目回收的岩心含有厚厚的盐层，记录了11万5千年到13万年前中东地区的干旱状况。该项目将通过分析被困在盐中的流体气泡的化学成分，重建过去20万年温暖时期的气候和水文。地球化学测量结果将解释为降雨、温度、相对湿度和风。这些结果将与地球历史上这一时期气候模型的预测结果进行比较。

The climate and hydrology in the Middle East for the last 200,000 years can be deduced from chemical analyses of 460-meters of drill core obtained from beneath the Dead Sea by the International Continental Scientific Drilling Project (ICDP). Thick layers of salt deposited between 115,000 and 130,000 years ago imply drought conditions. The climate and hydrology in the Middle East during this time period can be compared with results from other regions to understand how they are connected globally. Using evidence from the past can test our theories and broaden our understanding of how the climate will respond in the future. This project will strengthen present and future international scientific collaboration through participation of students from Jordan and Israel.Drill core recovered by the Dead Sea Drilling Project contained thick layers of salt that document drought conditions in the Middle East between 115,000 and 130,000 years ago. The project will reconstruct the climate and hydrology during warmer periods in the past 200,000 years by analyzing the chemistry of fluid bubbles trapped in the salt. Geochemical measurements will be interpreted for rainfall, temperature, relative humidity, and winds. The results will be compared with predictions from climate models for this period in earth history.