地质论评2012，Vol.58Issue(2)：285-296,12.
流体性质转换机制在重力流沉积体系分析中应用初探
Preliminary Study on Gravity Flow Depositional System Based on Fluid Properties Conversion Theory
摘要
Abstract
Until the publication of Turbidity Currents as a Cause of Graded Bedding written by Kuenen in 1950, the gravity flow theory has made a great development. However, nowadays some geologists not only argue about the turbidity theory, but also have some problems in using concept and terminology of turbidity current. According to sedimentary process of gravity flow and fluid properties, this paper raises an analytical method of gravity flow depositional system based on fluid properties conversion theory. There are several fluid processes of the formation, development and extinction of gravity flow, including multiple conversions between different fluid properties. The final conversion results determine the morphology and category of gravity flow depositional system. At the same time, the complicated fluid conversion results the sedimentary characteristics that turbidities caused by turbidity current coexist the other lithofacies caused by other currents. According to this theory, we analyze the origin and sedimentary characteristics of fan delta caused by tractive-debris flow, Nearshore subaqueous fan caused by turbidity current and slope apron caused by debris flow, and discuss the role of Fluid properties conversion theory in the identification of sedimentary systems.关键词
重力流/碎屑流/浊流/流体性质转换/沉积模式Key words
gravity flow/ debris flow/ turbidity current/ fluid properties conversion/ sedimentary model引用本文复制引用
李存磊,任伟伟,唐明明..流体性质转换机制在重力流沉积体系分析中应用初探[J].地质论评,2012,58(2):285-296,12.基金项目
本文为“十一五”国家科技项目“国际重大资源态势评价与预测技术开发”(编号2006BAC18B05)、高等学校博士学科点专项科研基金资助项目(编号20110003110014)的成果. （编号2006BAC18B05）
