Thickness and duration of biostratigraphic zones, assemblages, ages and sedimentation rates at DSDP Sites 76-534 and 44-391@en

In this Initial Report of the Deep Sea Drilling Project, detailed studies of Sites 533 (gas hydrates) on the Blake Outer Ridge and 534 (oldest ocean history) in the Blake-Bahama Basin have provided answers to many geological and geophysical questions posed over the decade that deep drilling has been undertaken in this part of the western North Atlantic. The history of drilling and a historical review of key scientific accomplishments have been presented in the Introduction (Gradstein and Sheridan, this volume). In this final chapter we review highlights of new geological, geophysical and paleoceanographic interpretations presented in this volume, and offer a critical review of this information. We conclude with a listing of some outstanding problems and recommendations for future research, including data collection.本《深海钻探计划初步报告》中，针对布雷克外海岭的533站位（天然气水合物（gas hydrates））与布雷克-巴哈马盆地的534站位（最古老海洋历史记录）所开展的详细研究，为西大西洋该区域十余年来深海钻探所提出的诸多地质与地球物理问题提供了解答。钻探历程与关键科学成果的历史回顾已在引言部分予以阐述（Gradstein与Sheridan，本卷）。在本终章中，我们将梳理本卷收录的全新地质、地球物理及古海洋学（paleoceanographic）解读的核心要点，并对这些资料进行批判性评述。最后，我们将列出若干尚未解决的突出问题，并为未来研究（包括数据采集工作）提出相关建议。