


4 Advantages and Disadvantages of Limestone … - Limestone extraction – underground mining techniques, …
INTRODUCTION TO MINING . of mining, then agriculture and mining continue to supply all the basic resources . include phosphate, potash, halite, trona, sand, gravel, limestone, sulfur, and many Quite frequently, excavation in the earth is employed for purposes other.Limestone is mined by a method called quarrying. In this method,the overburden rocks scrapped off with mechanical excavators in order to reach the limestone. The limestone is then shattered with explosives and scooped out by the excavators into trucks waiting t carry it to the factory. 161. LIVER FLUKE.
