白云岩Mg同位素特征及其在岛屿-盆地研究中的进展

doi:10.3799/dqkx.2025.047

白云岩Mg同位素特征及其在岛屿-盆地研究中的进展

doi: 10.3799/dqkx.2025.047

许红^1,2,3,
闫琢玉^4,5,6,
付和平⁷,
王修齐^2,5,
苏大鹏²

1. 长江大学, 湖北武汉 434100;
2. 国土资源部青岛海洋地质研究所, 山东青岛 266237;
3. 自然资源部第一海洋研究所, 山东青岛 266061;
4. 中海油能源发展股份有限公司工程技术分公司, 天津 300450;
5. 中国地质大学(武汉)地球科学学院, 湖北武汉 430074;
6. 中国地质大学(武汉)地质过程与矿产资源国家重点实验室, 湖北武汉 430074;
7. 中国石油长庆油田分公司, 陕西西安 710016

详细信息

作者简介:
许红（1957-），男，博士，研究员，主要从事油气地质调查与资源勘探评价及海洋生物礁成因研究工作。E-mail： qdxhong@163.com。;闫琢玉（1991-），男，在读硕士，高级工程师，主要从事油气田储层微观评价及勘探开发综合研究。E-mail：yanzhy3@cnooc.com.cn，0009-0003-0362-1857。

中图分类号: P597
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出版历程
- 收稿日期: 2024-10-12

Characterization of Mg isotopes in dolomites and advances in island-basin studies

Xu Hong^1,2,3,
YAN Zhuoyu^4,5,6,
FU Heping⁷,
WANG Xiuqi^2,5,
SU Dapeng²

1. Yangtze University, Hubei Wuhan 434100, China;
2. Qingdao Institute of Marine Geology, Ministry of Land and Resources, Qingdao Shandong 266237, China;
3. First Institute of Oceanography, Ministry of Natural Resources, Qingdao Shandong 266061, China;
4. Engineering Technology Branch, CNOOC Energy Development Co., LTD., Tianjin 300450, China;
5. China University of Geosciences (Wuhan), Hubei Wuhan 430074, China;
6. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Hubei Wuhan 430074, China;
7. Petrochina Changqing Oilfield Company, Xi 'an 710016, China

摘要

摘要: 白云岩发现233年至今，仍然还是基础研究前沿。Mg同位素作为白云岩形成的关键同位素，已在白云岩问题研究中异军突起，发展成新的热点。本文简介了地质储库中镁和Mg同位素特征，分馏、镁循环和生物成因Mg同位素特征研究的进展。采集西沙群岛新近纪成礁以来白云岩岩心开展Mg同位素测试，探讨白云岩Mg同位素与流体方向、地层层序的特征，以中国西部沉积盆地油气勘探深层-超深层白云岩Mg同位素储层研究为例，简介了针对深层Mg同位素特征开展储层评价的结论，Mg同位素研究在古海洋重建、全球大陆、海洋和地球内部镁储库及镁循环等领域的相关进展，推进了白云岩前沿问题讨论的进程，强化了对于白云岩形成和机制研究的理解。
- Mg同位素特征 /
- 白云岩Mg同位素分馏 /
- 地质储库Mg同位素 /
- 西沙群岛白云岩Mg同位素 /
- 沉积盆地白云岩Mg同位素
Abstract: Since the discovery of dolomite 233 years ago, it is still the forefront of basic research. Mg isotope, as a key isotope in the formation of dolomite, has become a new hotspot in the study of dolomite. The research progress on the characteristics of magnesium and magnesium isotopes in geological storage, fractionation, magnesium cycling and biogenic magnesium isotopes are briefly reviewed. The characteristics of Mg isotope, fluid direction and stratigraphic sequence in dolomite cores collected from Xisha Islands since Neogene reef were studied. Taking the study of deep-deep and ultra-deep dolomite magnesium isotope reservoirs for oil and gas exploration in sedimentary basins in western China as an example, this paper briefly introduces the evaluation results of magnesium isotope study. Progress has been made in the study of magnesium isotopes in the fields of paleo-ocean reconstruction, global continents, ocean and earth interior magnesium storage and magnesium cycling, which has promoted the discussion of frontier issues of dolomite, and strengthened the understanding of dolomite formation and mechanism.