Abstract

The results of stratigraphic studies carried out in the process of international deep-sea drilling in the last fifty years are presented. They make a great contribution to development and improvement of the methods for detailed stratigraphic studies and dating of marine sedimentary sequences as well as reconstructions of past oceanological and climatic events. The results obtained are of great methodological importance for stratigraphic investigations of the whole Phanerozoic. The distinguished Cenozoic biostratigraphic zones can really be traced across the whole tropical and subtropical area. The study data on planktonic microorganism (calcareous and siliceous) assemblages which were an integral part of Mesozoic and Cenozoic marine ecosystems made a considerable contribution to these works. These assemblages developed over time against the background of variable oceanic circulation and sedimentation conditions, changes in deep and surface water productivity, water temperature, etc. In general, the evolution trend of biotic communities reflects the development and reorganization stages of the past ecosystems. All these data make it possible to reveal the real sequence of not only biotic but also abiotic events (climatic, oceanographic, and eustatic) in the World Ocean for the last 70–75 million years.

中文翻译：

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世界大洋深海钻探经验：对地层研究的方法和实践意义

摘要

介绍了近50年来国际深海钻探过程中地层学研究的成果。它们对发展和改进海洋沉积层序的详细地层研究和测年方法以及过去海洋和气候事件的重建做出了重大贡献。获得的结果对于整个显生宙的地层调查具有重要的方法论意义。显着的新生代生物地层带确实可以在整个热带和亚热带地区进行追踪。浮游微生物（钙质和硅质）组合是中、新生代海洋生态系统不可或缺的一部分，对这些工作做出了相当大的贡献。这些组合是在变化的海洋环流和沉积条件、深部和地表水生产力、水温等变化的背景下随着时间的推移而发展起来的。总的来说，生物群落的演变趋势反映了过去生态系统的发展和重组阶段。所有这些数据使得揭示过去 70-7500 万年世界海洋中生物和非生物事件（气候、海洋和海平面）的真实序列成为可能。