Based on Nantun coalmine geological structure study,by the use of fuzzy comprehensive assessment carried out minefield structural complexity quantitative analysis,the result is basically in accord with practical situation.

Characteristics of microelements in Ordovician in the Datun coal field and their significance in the study of karst development and water-bearing capacity;

By studying the past geological works and obtained geological data in Baitun coal mining area in Datian county,Fujian province,a analysis is made on the prospects for the general prospecting for coal in this area.