Scholarly record

ORGANIZATION OF THE ACCESS DATABASE FOR THE LOJANE Sb-As MINE WASTE DUMP, REPUBLIC OF NORTH MACEDONIA

Goran Tasev

Abstract

Organization of the Access database of the Lojane As-Sb deposit Northern Macedonia represents the first attempt of this paper authors to synthesize geological exploration data of this ore bearing locality in one professional database available for the interested parties. Since we are relatively experienced in compiling similar databases for numerous deposits (Bucim, Borov Dol, Kadiica, Sasa etc.), we had a critical knowledge needed to to organize representative Access database for the Lojane deposit. The Lojane deposit, which as As, Sb and Cr mine was exploited in the period 1923-1979, is located close to the northern state border of the Republic of North Macedonia, close to the border with Kosovo and in the immediate vicinity of the Lojane and Vaksince villages. During the processing period flotation was used for concentration of antimony and arsenic minerals, which resulted in significant amount of tailings. Tailings pile disposed close to the processing plant reached up to 450 000 tons of waste material and covers an impressive area of 17 500 m2. Also, within concentrate storage pond build near the plant (approx. 5 000 m3 in volume) had been disposed 15 000 tons of arsenic concentrate with min. 50% As as well as 3 000 000 t of tailings remaining at the concentration facility. High concentration of arsenic sulfides, in uncovered tailing dam, is indicated by its intensive orange color as well as intensive odor.. Within ours paper we focused to a compilation of an anthropogenic data of the Lojane deposit in a representative Microsoft Access database. Using well known database software package ?Microsoft Access? we started compilation of ours work with filling fields with general information, wastes and products, iconography and bibliography. We must to stress that ours particular Lojane anthropogenic database provides simple and user-friendly querying of certain features and creation of editable reports as well as geographic display that information. Distinctive data representative for this particular anthropogenic database accented several inevitable facts: the production facility is inactive, the location is waste dump of former facility, significant quantities of arsenic (900 t), antimony (803 t), nickel (315 t), molybdenum (3.6 t) and thallium (2.7 t) accented the economic parameters of the location.

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DOI resolver: doi.org/10.5593/sgem2019/2.1/s08.130

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