Imbricate structures in the deposits and three original types in Mesozoic coal measures in the South of China;

Comprehensive comparison among coal measures in Ping-Yu-Ru Mining Areas of Henan Province;

In recent years sequence stratigraphic techniques have been successively applied in hydrocarbon exploration and it has also promoted the study of coal measures sedimentology.

Coal-bearing strata have been divided into three sections by interpreting large amounts of drill information and by evaluating the properties of the coal-bearing strata.

The paper introduces how to use composed patterns of logging curve to research into the vertical changing characteristics of coal strata,which has provided the basis for the sequence division of coal-bearing strata.

Integrated some literatures both home and abroad,we have discussed abundance,hosting state,geologic genesis and possibility of utilization of useful metals such as niobium,gallium,rhenium and scandium in coal and coal-bearing strata.

The coal-bearing rock series-Yanan Formation,250～350m in thickness,contains more than 20 coal seams.

The stratigraphic age of Dunri coal-bearing rock series was formerly belongedto Late-Triassic Epoch, but its many features such as lithology, lithofaces,coal quality andsporopollen assemblage etc.

The coal-bearing rock series rock mass structure is the basic factor to control coal and rock deformation,based on this presupposition,guided under fundamental theories of rock mechanics and fractal geometry,put forward two parameters of rock mass strength factor conditional on rock Young s modulus and Poisson s ratio and fractal dimension conditional on strata thickness.

Study on the Sporopollen Assemblages and their Geological Era in the Coal-bearing Formation of the Late Palaeozoic Era in Tangyang Mine Field of Jining;

Upper Permian coal-bearing formation in Xinhua coal-mine is a set of coal-bearing formation of marine carbonate rock and clastic rock in Liuzhi,Guizhou.

Based on the rock type of coal-bearing formation ，the key factors to control rock mechanics properties ，such as lithological characters ，in-situ stresses, and moisture, are systematically analyzed.

Using systematically historical and modern comparative methods,it has been discussed that oil source rock maturity,lithological properties and oilfield conditions of worldwide oilfield generated from coal and coal bearing formations.

Advances in sedimentology and sequence stratigraphy of paralic coal measures;