古地理学报 ›› 2022, Vol. 24 ›› Issue (1): 1-10. doi: 10.7605/gdlxb.2022.01.001

• 海洋古地理专辑 •    下一篇

洋板块地层学的概念、模式、组成及失序变化*

许淑梅1,2,3, 孔家豪1,2, 李三忠1,2,3, 舒鹏程1,2, 马慧磊1,2, 崔慧琪1,2   

  1. 1 中国海洋大学海底科学与探测技术教育部重点实验室,山东青岛 266100;
    2 中国海洋大学海洋地球科学学院,山东青岛 266100;
    3 海洋高等研究院/深海圈层与地球系统前沿中心,山东青岛 266100
  • 收稿日期:2021-08-05 修回日期:2021-09-23 出版日期:2022-01-01 发布日期:2022-01-24
  • 作者简介:许淑梅,女,1970年生,博士,教授,长期从事沉积学和盆地分析的教学和研究工作。E-mail: xsm@ouc.edu.cn。
  • 基金资助:
    *国家自然科学基金项目(编号: 91958109,91958214,42121005)、中央高校基本科研业务专项(编号: 202172003)、国家自然科学基金委员会—山东海洋科学中心联合项目(编号: U1606401)和山东省泰山学者攀登计划项目(编号: tspd20210315)联合资助;

Concept,model,formation and disordered variation of Ocean Plate Stratigraphy

Xu Shu-Mei1,2,3, Kong Jia-Hao1,2, Li San-Zhong1,2,3, Shu Peng-Cheng1,2, Ma Hui-Lei1,2, Cui Hui-Qi1,2   

  1. 1 Key Lab of Submarine Geosciences and Prospecting Techniques,Ministry of Education, Ocean University of China, Shandong Qingdao 266100,China;
    2 College of Marine Geosciences,Ocean University of China,Shandong Qingdao 266100,China;
    3 Institute of Advanced Oceanography/Frontiers Science Center for Deep Ocean Multispheres and Earth System,Shandong Qingdao 266100,China
  • Received:2021-08-05 Revised:2021-09-23 Online:2022-01-01 Published:2022-01-24
  • About author:Xu Shumei,born in 1970, professor, is engaged in studies on sedimentology and basin analysis.E-mail: xsm@ouc.edu.cn.
  • Supported by:
    Co-funded by the National Natural Science Foundation of China(Nos. 91958109,91958214, 42121005),the Basic Research Project for the Central Universities(No.202172003),the Joint Project of the National Natural Science Foundation of China and Shandong Marine Science Center(No. U1606401),and the Taishan Scholars�� Climbing Program of Shandong Province(No. tspd20210315)

摘要: 着重介绍了洋板块地层的概念、模式、组成及失序变化特征。造山带混杂岩和大陆边缘增生复合体是经历俯冲碰撞消亡后的古洋沉积记录,利用微体古生物地层学和同位素年代学方法可以重建造山带混杂岩和大陆边缘增生复合体的原始地层。洋板块地层(学)是用来描述沉淀在洋壳基底之上的沉积岩和火成岩序列的术语,其开始于洋中脊形成,终止于该洋中脊被移入到汇聚边缘增生楔。从造山带混杂岩中重建的古大洋地层的基本组成大体相似,但因大洋岩石圈的岩浆背景不同,造成不同时期和不同类型的洋板块地层组成也会有差异。在前人研究成果的基础上, 笔者通过对不同类型洋板块地层进行分类,介绍了如何从经历碰撞造山过程的增生造山带进行洋板块地层的重建。引入“洋板块地层学”概念的主要目的在于通过对因俯冲增生而消亡的具有洋壳基底的构造洋盆和边缘海盆地的地层单元进行重建,恢复已消失洋的地层组成单元,这对造山带地层解析、造山带构造古地理恢复、重大构造变革期古地理学研究和板块重建等都将起到积极的促进作用。

关键词: 洋板块, 洋板块地层, 造山带混杂岩, 大陆边缘增生复合体

Abstract: This paper mainly focuses on the concept,model,formation and disordered variation of the Ocean Plate Stratigraphy(OPS). The sedimentary records of the ancient ocean floor after subduction and collision include the orogenic mélange and continental margin accretionary complexes,which can be reconstructed by micropaleontology and isotope chronology. The reconstructed stratigraphy from the mélange and accretion complex is here referred to as “Ocean Plate Stratigraphy”. The basic composition of OPS reconstructed from the mélange and accretive complexes of orogenic belts is similar,but the composition and types of OPS are different due to the different magma background of oceanic lithosphere. The paper introduces how to re-establish OPS from the accretive orogenic belt undergoing subduction and collision based on different types of oceanic plate strata. The purpose of introducing the concept of OPS is to re-establish the stratigraphic units of the vanished ocean basin and marginal sea basin. It will play a positive role in promoting the stratigraphic analysis of orogenic belt,in restoring the orogenic belt tectonic paleogeography,and in studying the paleogeography during major tectonic changes and plate reconstruction.

Key words: ocean plate, Ocean Plate Stratigraphy, orogenic m$\acute{a}$lange, continental accretionary complex

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