A Tephrostratigraphic Framework for the Atacama Desert and its Application on Different Sedimentary Archives (D06*)

该分项目旨在为阿塔卡马开发第一个全面的地区性地层数据库(TephATA)。TephATA数据库应将现有样品和新样品的地球化学指纹数据(主要、次要、痕量元素)与年代和地层信息结合起来，以关联不同地点之间的Tephra层，并识别广泛存在的标记Tephra层。因此，TephATA数据库将提供支柱，将已知的火山喷发年代转移到《儿童权利公约》项目的大陆和海洋档案中可见的盖夫拉层和不可见的隐蔽层。更多最先进的长石和锆石测年技术将完善火山灰岩层的年代学。

The Subproject aims to develop the first comprehensive, regional tephrostratigraphic database (TephATA) for the Atacama. The TephATA database shall combine geochemical fingerprinting data (major, minor, trace elements) of available and new samples with chronological and stratigraphic information to correlate tephra layers between different sites and to identify widespread marker tephra horizons. Thereby, the TephATA database will provide the backbone to transfer ages known volcanic eruptions to visible tephra and non-visible cryptotephra layers in continental and marine archives of the CRC projects. Additional state-of-the-art dating of feldspars and zircons will refine the chronology of the tephra layers.