论文部分内容阅读
中国地质学会和中国煤炭学会的煤田地质专业委员会于1982年4月上旬在西安召开了“陆源沉积岩分类学术讨论会”。代表们认为,沉积岩按物质来源划分为火山物源沉积岩,陆源沉积岩、内源沉积岩和生物源沉积岩四大类是可取的。由于陆源沉积岩主要是由陆源碎屑物质组成的,而这些物源碎屑物质在其搬远和沉积过程中主要遵循机械沉积分异作用,而其中又以碎屑的粒径大小来作为判断搬运、沉积介质性质和沉积盆地能量的主要标志。因此,陆源沉积岩的分类首先应是粒度分类。
China Geological Society and China Coal Institute of Coal Geology Professional Committee held in early April 1982 in Xi’an, “terrigenous sedimentary rock classification Symposium.” The deputies believed that it is advisable to divide sedimentary rocks into four major categories of volcanic source sedimentary rocks, terrigenous sedimentary rocks, endogenous sedimentary rocks and biogenic sedimentary rocks. Because the terrigenous sedimentary rocks are mainly composed of terrigenous detrital materials, which mainly follow the mechanical sedimentation differentiation during the process of their removal and deposition, the sediment of these terrigenous sediments is judged by the size of the detritus , The nature of sedimentary media and the major indicator of sedimentary basin energy. Therefore, the classification of terrigenous sedimentary rocks should first be classified by size.