陆源碎屑与碳酸盐混合沉积研究中的几点思考

在前人研究的基础上，结合一些具体研究实例，对混合沉积的定义进行了修正和补充；对混积岩和混积层系重新进行分类和命名；根据混合沉积的定义、成因、成分、结构、沉积构造及接触关系等因素，按照“沉积事件+剖面结构”的原则，提出了渐变式、突变式和复合式3种成因类型，对前人的研究成果进行了概括和归纳；对混合沉积的控制因素进行了深入讨论；在以碳酸盐沉积为主和以陆源碎屑沉积为主的2类沉积背景下详细论述了层序格架中混合沉积的发育情况；结合混合沉积本身的特点讨论了混合沉积与油气的关系。最后针对混合沉积研究现状，指出了该领域研究中存在的问题，并对未来的研究方向进行了展望。

Some Problems on the Study of the Mixed Siliciclastic- Carbonate Sediments

The study of Mixing deposit has theoretical significance and practical value.On the basis of the previous studies and combination with some concrete examples,the definition of Mixing deposit is revised and supplied,the Hunji Rock and the Hunji stratum of two ends are classified and named.Based on the factors such as definition,cause of formation,component,structure,deposition structure and contacting relation,and according to the sediment event+section structure of Mixing deposit,mixed sedimentary type can be divided into three categories: the blended mixing deposit,the salutatory mixing deposit.and the complex mixing deposit and Carried out summarization and induction to the prehominid studies;discussing the governing factor of mixing deposit;Commenting the relation between deposition sequence stratigraphy and the mixing deposit under two kinds of advantage sedimentary background of the mixed siliciclastic-carbonate;discussing the relation between the mixing deposit and Oil gas,according to itself characteristic and aiming at the research current situation of the mixing deposit,pointing out some problems and the future research direction in the last.