The aim of this work is to present what are the possibilities for providing Pb-Zn ore from the surrounding districts for exploitation the "CRNAC" mine. The amount of excavated ore, as well as a wellknown fact that the ore reserves are not inexhaustible, generated the need for continuation od geological exploration. Enlargement of raw material base should be expected on the indicated locations close to the active deposits of Crnac. One of the identified sites in the Crnac ore zone and the eastern part of active deposit is also the so-called district of "CRNAC-EAST".This paper presents the results of geologically explored operations obtained by interpolation of data from exploratory wells and exploratory mining operations in the district of "CRNAC-EAST".
Considering that in obtaining the mineral resources about 70% of mining operations belongs to drilling and blasting, where there are the highest costs, this paper is aimed to description and proof the modern way of mining that imply maximum effects both in technological and in terms of safety.
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