A Study on PLC in Material of Automatic Sorting System
Sun Yong-e · Coal Technology · 2011
With the application of the principles of sequence stratigraphy,the strata of naleogene-neogene in mahai swell are divided into two 2nd order sequences and seven 3rd order sequences,by the identification marks of sequence boundary including seismic section,well logging curves,litho-combination and so on.There are two large-scale lake transgressions,identifying proluvial fan-fluvial facies,lake-delta and proluvial-fluvial-lake facies.In different tectonic stages,subsidence background and sediment supply control the sedimentary system types and the development rule of sediment system.