Geochemical investigations of volcanic ash layers from ODP Leg 119

Geochemical investigations were carried out on 19 discrete ash layers and on 42 dispersed ash accumulations in Oligocene to Pleistocene sediments from Sites 736, 737, 745, and...本研究对736、737、745等站位（原文未完整列出全部采样站位）的渐新世（Oligocene）至更新世（Pleistocene）沉积物中的19个离散火山灰层（discrete ash layers）及42处分散火山灰堆积物（dispersed ash accumulations）开展了地球化学调查。