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.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.
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 paleoocean 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.
作者
许红
闫琢玉
付和平
王修齐
苏大鹏
Xu Hong;Yan Zhuoyu;Fu Heping;Wang Xiuqi;Su Dapeng(School of Geosciences,Yangtze University,Wuhan 434100,China;Qingdao Institute of Marine Geology,Ministry of Land and Resources,Shandong 266237,China;First Institute of Oceanography,Ministry of Natural Resources,Shandong 266061,China;Engineering Technology Branch,CNOOC Energy Development Co.,LTD.,Tianjin 300450,China;School of Geosciences,China University of Geosciences,Wuhan 430074,China;State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China;PetroChina Changqing Oilfield Company,Xi'an 710016,China)
出处
《地球科学》
北大核心
2025年第8期3225-3240,共16页
Earth Science
基金
国家自然科学基金项目(No.41106064)
国家重点研发计划项目(No.2017FY201407)
国家重点基础研究发展计划项目(2012CB956004)
国家油气重大专项(No.2011ZX05025-002-04)。
关键词
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
石油地质
Magnesium isotope characteristics
Dolomite magnesium isotope fractionation
Mg isotope in geological reservoir
Magnesium isotope in dolomite of Xisha Islands
Magnesium isotope of dolomite in sedimentary basin
petroleum geology
