Geochemical and Sr-Nd isotopic variations in a deep-sea sediment core from Eastern Indian Ocean: constraints on dust provenances, paleoclimate and volcanic eruption history in the last 300,000 years

摘要

This study reported geochemical and Sr-Nd isotopic variation of fine-grained mineral components in a deep-sea piston core G6-4, south of the Sumba Island, Eastern Indian Ocean. The new data enables us to characterize dust contributions from Australian continent and volcanic eruption history in the adjacent volcanic arc over approximately the last 300,000 years. The geochemical and isotopic features of the fine-grained components (