The North ore-controlling ductile-brittle shear zone, which is the production of the evolution of the regional ductile zone, is located at the bottom of Tiejiashu-Miaowan thick-bedded limestone.
This paper introduces the results of sublevel open-stoping method and improving measures in Piaotang Tungsten Mine and makes a discussion about the mining method to the string thick-bedded ore body.
介绍了分段空场采矿法在漂塘钨矿的应用效果与改进措施，并对细脉带厚矿体采矿方法作了探讨。
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Gravity flow deposits are consisted of thick dark-gray and gray slump deposits, debris-flow deposits and thin-medium bedded turbidite deposits.