摘要
应用地球化学资料识别层序地层单元的方法包括:碳氧同位素法、黏土矿物法、胶结物含量法、微量元素法、稀土元素法、TOC识别法、镜质体反射率法等。上述方法识别层序地层单元具有识别准确和分辨率高等优点,缺点是容易受到样品采样不连续的限制和受成岩作用、岩浆作用、构造作用等其他因素的影响。因此,在多地球化学指标结合识别层序地层单元的基础上,还应结合测井、地震、古生物等资料开展层序地层单元综合识别。
The methods of using geochemistry data identifying sequence stratigraphic units include carbon-oxygen isotope, clay mineral, cement content, trace elements, rare-earth elements, TOC and Ro, and so on. These methods have the characteristics with high accuracy and resolution, and with some disadvanta-ges, such as easily affected by the restriction of discontinuous sampling, diagenesis, magmatism, tecton-ism and some other geological factors. Therefore, we should integrate multi-geochemical indicators with well-logging, seismic and paleobiologic to identify the sequence stratigraphic units.
出处
《地质科技情报》
CAS
CSCD
北大核心
2012年第6期67-73,共7页
Geological Science and Technology Information
基金
国家科技重大专项课题(2011ZX05030-002-002)
国家自然科学基金项目(40702024)
霍英东教育基金项目(132020)
中央高校基本科研业务费专项资金资助项目(CUGL100412)
教育部留学回国人员科研启动基金项目(2009022014)
