Study Of Sdimentation And High-Resolution Sequence On Carboniferious-Permain In Huanghebei Coalfield

By means of the principle and method of the high-resolution sequence stratigraphy, and on the base of detailed analysis on core and well curves, this paper comprehensively and systemmaticaly analysis the Carboniferous-Permian's coal-accumulating stratum of depositional system and basin-filling succession in Huanghebei coalfeild , and four main deposional system in the study area. They are tidal flat depositional system, barrier-lagoon depositional system, fluvial-dominated shallow water deltaic system and fluvial-lacustrine depositional system , especially recognise and contrast the high-resolution sequence interface and the cycle of base level. And the base level can recognize three types, that is short term base level, medium-term base level and long term base level. A detailed analysis on sequence and its internal architecture is carried out,and mark off four third-order sequences , the sequence I have four parasequences, the sequence II have seven parasequences, the sequence III have eight parasequences ,and the sequence IVis a terresitrial sequence, and it is not a full sequence ,because of the upside has eroded.