Neutron activation analysis(NAA)was adopted to determine rare earth elements(REE)content in Jurassic Yanan Formation coals in Dongsheng coalfield,then drawing REE distribution pattern curves and calculating multiple chemical parameters.

The Yanan Formation coal-bearing strata in Ulan Xil district,Dongsheng coalfield possess many coal seams,thickness and intervals between coal seams varying largely,coal seam splitting and merging frequently,thus hard to correlate coal seams and strata.

Scouring experiment of on-sites on undisturbed lands of Shenfu-Dongsheng coalfield;

Study on the simulation of runoff and sediment yield on the disturbed lands during the Shenfu-Dongsheng coalfield exploitation;

Environmental disaster issues induced by coal exploitation in Shenfu-Dongsheng coal field;

Shenfu-Dongsheng coal field is an important base of energy resources and heavy chemical industry of our country ,since the large scale development in 1987, mud rock flows occurred frequently.

Development characteristic of soil erosion in Shenfu-Dongsheng coal field and the countermeasure of control;

Distribution and geological feature of the Coal-Ge deposit of Shengli coalfield in Inner Mongolia of China;

Research on grade variation regularity of paragenetic germanium deposit along uprightness in Shengli Coalfield,Inner Mongolia;

Research on elemental geochemical characteristics of coal-Ge deposit in Shengli coalfield,Inner Mongolia,China;