This result lays a solid foundation for the research . 2 . based on the study of petrology facies , facies association and sedimentary sequences , the sedimentary processes and systems are established . they consist of debris and hyper concentration flow deposits , channel deposit of braided and meandering streams , and alluvial fans , floodplains , fan - deltas and lacustrine turbidities 根据岩相、相组合以及沉积层序的研究，确立了研究区的沉积作用类型和沉积体系，它们包括碎屑流和超浓缩洪流沉积、辫状河河道沉积，以及冲积扇沉积、洪泛平原沉积、扇三角洲沉积和湖相浊流沉积。
6 . on the base of the two - phase flow theory , the paper studies the velocity distributing of solid - liquid two - phase flow , acquires the distributing function of velocity and consistence , on the other hand , studies the loosing during flow , and gets the movement equation of solid - liquid two - phase flow . finally , the paper analyzes the flow characters of solid - gas two - phase flow , put forwards the boltzmann equation , gets the critical condition of slope angle tg a > tg ( p1 , and brings forwards the relevant m （ 6 ）分别应用二相流理论研究了固液型碎屑流流速分布，得出了流速分布及浓度分布的方程式，并进一步研究了固液型碎屑流流动过程的弛豫现象，得出了固液型碎屑流的运动方程；同时，分析了固气型碎屑流（即干碎屑流）的运动特点，给出了固气型碎屑流的boltzmann方程，得出了干碎屑流的临界坡角条件哈a2igs ’ ，并给出了满足此条件下干碎屑流的运动方程。
