(Table 1) Occurrences of volcanic ash at DSDP Leg 78A Holes

Air-fall volcanic ash recovered at Deep Sea Drilling Project Sites 541, 542, and 543 on and east of the toe of the Barbados Ridge delineate middle and late Miocene, early...

在巴巴多斯海脊趾部及其东侧的深海钻探计划（Deep Sea Drilling Project）541、542、543站位所回收的降落型火山灰，勾勒出了中中新世、晚中新世及早……的地质年代范围。