THE STORM ALLOCHTHONY COAL OF LATE CARBONIFEROUS COAL-BEARING FORMATION IN HENAN PROVINCE

There have been found storm allochthony coals in Upper Carboniferous in Henan Province, which redeposited in neritic environment when storm scoured strongly swamp in coastal plain and transported these materials into neritic environment. The direct bottom and top beds of this coal are both carbonatite with the chracteristics of storm deposits. Coal grade is silty-muddy and there are any primary structures in coal thin section. The sequence of coalbed is similiar to that of carbonate storm deposits in its bottom and top beds, which consists of lag bed with plentiful of marine fossils at the bottom, wavy laminated bed with hummocky cross bedding at the middle, and horizontal laminated bed at the top. This paper dealts with the chracteristics of coal quality, coal petrographics, the types of sequences, depositional setting and forming regimes of storm allochthony coal. These studies not only find a new type of coal-forming pattern and develop the research scope of coal geology, but also are helpful to study paleoclimate, paleoenvironment and coal correlation.