II1 coal seam in the mining area,analyzed CBM hosting features of the coal seam.

1 coalmine,expounded geothermal resources hosting features and estimated potential geothermal resources,discussed geothermal resources development and utilization prospect.

This paper investigate occurrence characteristics of copper,lead,zinc,aurum,silver,molybdenum in the ore from the Yuejingou copper polymetallic deposit,based on microprobe observation and electron microprobe analysis.

This paper describes the occurrence characteristic of macroelements in the region and discloses the relationship between partial macroelements and sedimentary environment in the coal.

Through testing crustal stress,surronding rock intensity,observation joint fissure and combined tectogenetic movement times without number,We make clear the ingredient occurrence characteristic and rule,which has establish solid basis for shaft drift s arrangement,suppo.

According to physical conditions of natural coke and combine with mining practice of Fuxin coal mine,the paper has reviewed preservative features of coalbed gas in natural coke,and indicated some problems ought to pay attention on exploitation and application of coalbed gas.

A study of formation cause, existing characteristics of the shallow gas and its danger to engineering;

By researching into the existing characteristics of coal seam methane in Shaqu mine.

Primary analysis on the feature of nitrogen and phosphorous nutrients in freshwater culture shrimp ponds in Hangzhouwan Bay;