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Acta Metallurgica Sinica ›› 2020, Vol. 26 ›› Issue (4): 395-410.DOI: 10.16108/j.issn1006-7493.2020020

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Review and Prospects of Studying Methods to Reconstruct Eustatic Sea-level Changes in Deep-time

XU Yiwei,HU Xiumian   

  1. School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China
  • Online:2020-08-20 Published:2020-08-20

Abstract: Eustatic sea-level changes strongly control the Earth evolution on paleogeography, paleontology and paleoclimate, as well as the distribution of petroleum and coal deposits. The controlling factors of eustatic sea-level changes are, however, still poorly understood partly due to lack of a high-resolution global sea-level curve. This paper reviewed the history of eustasy research, and summarized five types of approaches to reconstruct eustatic sea-level changes in deep-time, including stratigraphic, sedimentological, ocean basin dynamics, geochemical approaches and big data technique. We take the Cretaceous sea-level curve
as an example to describe the difficulties in reconstructing eustatic sea-level changes and the results displayed that promising prospects could be expected in this area.

Key words: eustatic sea-level change, deep time, back-stripping, sequence stratigraphy, ocean basin dynamics, big data

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