地学前缘 ›› 2022, Vol. 29 ›› Issue (4): 10-24.DOI: 10.13745/j.esf.sf.2022.1.16

• 深海沉积与全球变化综述 • 上一篇    下一篇

国际大洋钻探全球海平面变化研究进展

胡钊彬1(), 尉建功2,3,*(), 谢志远2,3, 张伙带1,2, 钟广法1,*()   

  1. 1.同济大学 海洋地质国家重点实验室, 上海 200092
    2.南方海洋科学与工程广东省实验室(广州), 广东 广州 511458
    3.广州海洋地质调查局 三亚南海地质研究所, 海南 三亚 572025
  • 收稿日期:2021-11-20 修回日期:2022-01-10 出版日期:2022-07-25 发布日期:2022-07-28
  • 通讯作者: 尉建功,钟广法
  • 作者简介:胡钊彬(1997—),男,硕士研究生,主要从事地震地层学与海平面变化研究。E-mail: 2031714@tongji.edu.cn
  • 基金资助:
    南方海洋科学与工程广东省实验室(广州)人才团队引进重大专项(GML2019ZD0201);“大洋钻探科学研究:南海重大基础地质问题与首钻选址”;上海市科技创新行动计划国际科技合作项目“国际大洋钻探计划合作研究(20590780200);国家重点研发计划项目“国际大洋钻探南海航次后科学研究(2018YFE0202400)

Research progress in global sea level change: A critical review on international ocean drilling

HU Zhaobin1(), WEI Jiangong2,3,*(), XIE Zhiyuan2,3, ZHANG Huodai1,2, ZHONG Guangfa1,*()   

  1. 1. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
    2. Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou), Guangzhou 511458, China
    3. Sanya South China Sea Institute of Geology, Guangzhou Marine Geological Survey, Sanya 572025, China
  • Received:2021-11-20 Revised:2022-01-10 Online:2022-07-25 Published:2022-07-28
  • Contact: WEI Jiangong,ZHONG Guangfa

摘要:

国际科学大洋钻探计划对全球海平面变化问题的关注始于1980年代初,至今已在被动大陆边缘、孤立碳酸盐台地、混积台地边缘、平顶海山等不同类型海区执行了23个与海平面变化相关的专题航次,采集了大量的钻探资料,为全球海平面变化研究提供了关键信息。依据这些资料,重建了近100 Ma以来的全球海平面变化历史,检验了Exxon的层序地层模型和海平面假说,明确了海平面变化的地层响应,建立了南极冰盖演化与海平面变化的关系。尽管如此,科学大洋钻探海平面变化研究仍存在一些不足,如钻探区的地域代表性还不够多,全球海平面变化信息提取时难以消除其他地质因素(如构造沉降)的影响,海平面变化记录的精度有待提高,多种因素作用下地层结构对海平面变化的响应还需进一步研究,海平面变化机制特别是冰盖动力学对海平面变化的影响及暖期海平面变化的原因还认识不清。在当今气候变暖的大背景下,这些问题的解决有助于提升未来海平面变化趋势预测的可靠性。

关键词: 国际科学大洋钻探, 全球海平面变化, 地层响应, 气候变化, 南极冰盖演化

Abstract:

The international scientific ocean drilling programs (DSDP, ODP, IODP) began focusing on global sea level changes in the early 1980s. So far, 23 related expeditions have been implemented in areas including passive continental margins, isolated carbonate platforms, mixed platform margins and guyots. As a result, a large number of drilling data have been collected to provide key research data. Based on these data, many achievements have been made, including the reconstruction of the history of global sea level changes during the past 100 Ma. In addition, the sea level hypothesis presented by scientists from EXXON was tested, the stratigraphic response to sea level change was clarified, and the relationship between the evolution of the Antarctic ice sheet and sea level changes was established. Nevertheless, research deficiencies still exist, such as inadequate representation of drilling areas, entanglement of sea level information with local geological effects (e.g., tectonic subsidence), inaccurate sea level change recording, and a lack of understandings of the stratigraphic responses to and mechanisms of sea level changes (especially the influence of ice sheet dynamics and the cause of sea level changes in warm period). Under the background of today’s climate warming, resolving these issues will help making sea level change predictions more reliable.

Key words: international scientific ocean drilling, global sea-level change, stratigraphic response, climate change, Antarctic ice sheet evolution

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