Rudarski radovi br 4 2011 - Institut za rudarstvo i metalurgiju Bor

MINING AND METALLURGY INSTITUTE BOR YU ISSN: 1451-0162<br />
COMMITTEE OF UNDERGROUND EXPLOITATION OF THE MINERAL DEPOSITS UDK: 622<br />
UDK:621.361(045)=20<br />
Slađana Krstić * , Boban Lapadatović * , Milenko Ljubojev *<br />
CLAY QUALITY IN THE DEPOSIT DUŠANOVAC (NEAR NEGOTIN) **<br />
Abstract<br />
The clay deposit [3,5] Dušanovac is located in the northeastern part of Serbia, in the area of<br />
the village Dušanovac, about 9 km northwest of Negotin. The main goal of two-year geological<br />
investigation was lead the formation of clay in the area of "Dušanovac" near Negotin to a phase of<br />
deposit contouring, which will get all data for verification the reserves as clay minerals. Geological<br />
investigations, carried out during 2008/10 [3,5] have defined the geological characteristics of<br />
the deposit, quality of clay [4,3,6,7], evaluation the potentiality of prospecting area [3] as well as<br />
calculation the geological reserves of mineral resource deposit [3].<br />
During this period, 4 prospecting trenches were done and 12 prospecting drill holes were<br />
drilles. Shallow geological vertical drill holes drilled the total of 717.00 meters [3].<br />
This work has resulted from the Project 33021, which is funded by the Ministry of Education<br />
and Science of the Republic of Serbia (the quality of the clay deposit Dušanovac, the results of<br />
technological tests and the possibility of preparing these materials and what is important for the<br />
very possibility of application are shown). According to the color of clay in the deposit<br />
Dušanovac, the clay is divided into four types: brown clay [3,4,6,7]; yellow clay (it appears in all<br />
deposit, lying below the brown clay, average thickness is about 13.0 m, it is greasy, very plastic<br />
and slightly sandy), brown-gray clay and gray clay.<br />
The use of these clays [3,5] (yellow clay) in the recultivation the flotation tailing dump Veliki<br />
Krivelj [8] (and other tailing dumps, formed by operation of RTB) would contribute to the final<br />
solution of environmental disaster of this tailing dump.<br />
Key words: clay quality, possibility of use, deposit, mineral raw material<br />
INTRODUCTION<br />
The clay deposit Dušanovac is situated<br />
about 9 km from Negotin [3,5], in the area of<br />
the village Dušanovac (Figure 1). In the<br />
morphological sense, the area belongs to a<br />
depression which lies between the Dupljanska<br />
River (left tributary of the Jasenička<br />
River) and Danube. Deposit is located at<br />
altitude of about 90 m (while the town Negotin<br />
is at altitude of about 45 m). Water<br />
flows belong to the Danube River Basin (the<br />
Iron Gate Hydropower is situated near deposit),<br />
i.e the Black Sea basin. Hydrographic<br />
network is dense and well developed.<br />
* Mining and Metallurgy Institute Bor<br />
** This paper is produced from the project no. 33021 “Researching and monitoring changes in<br />
stress-deformation condition of rock massif “in-situ” around undergraund facilities with development<br />
of model with special emphasis on Krivelj river tunnel and Bor pit”, which is funded by<br />
means of the Ministry of Education and Science of the Republic of Serbia<br />
No 4,2011. 19<br />
MINING ENGINEERING