Climate History: Miocene to Recent Precipitation History of the Atacama and Namib Deserts (A02)

A02子项目的重点是重建阿塔卡马沙漠自中新世/上新世以来的降水和植被变化、它们的驱动因素和空间异质性。因此，将对华南重点地区沿海科迪勒拉的Paranal粘土层的连续深部钻探记录进行沉积学、矿物学、地球化学和生态变化调查。这一记录将填补阿塔卡马现有降水历史上的关键空白，并可能将其扩大到假设的中新世过度干旱开始。对阿塔卡马沙漠的研究将得到对纳米布沙漠的实地调查的补充，以确定儿童权利公约第三阶段潜在的长期气候记录。

Subproject A02 focuses on the reconstruction of precipitation and vegetation changes of the Atacama Desert since the Miocene/Pliocene, their drivers and spatial heterogeneities. Therefore, a continuous deep-drilling record from the Paranal clay pan in the Coastal Cordillera of the southern CRC focus area will be investigated for sedimentological, mineralogical, geochemical, and ecological variations. This record shall close crucial gaps in the existing precipitation history of the Atacama and may expand it back to the postulated onset of hyperaridity during the Miocene. The research in the Atacama Desert will be complemented by a site survey to the Namib Desert to identify potential long-term climate records for the 3rd CRC phase.