stanje i perspektive u rudarstvu i odrţivi razvoj mining present state ...

Rudarstvo 2011 / Mining 2011represent a very significant mineral resource potential of open pit exploitation of KCM in a nearest future. Thebase economic resource is a lignite with >330M t of exploitation reserves. Also, quartz sands and gravelsrepresent a complementary mineral resources suite in the deposit. Results of previous geological explorations oncoal provides conditiones for feassibillity designing. Significiant masses of intrabeded quartz sands (aprox.145M m 3 ) and gravels (aprox. 90M m 3 ) according to it‘s poor previous geological explorations could be seatedonly in a non-metalic resources. On ‘‘Veliki Crljeni‘‘ open pit the actuall excavation had to produce 30M t oflignite with additional 10M m 3 of roof gravels; on ‘‘G‘‘ deposit feasibillity study designed digging 5M m 3 ofroof gravels with 36,5M t of coal etc... In any circumstanceses, previously metntioned gravels and Q sands hadto be digged before the lignite beds because they are abowe them. Except mentioned roof NMR, locally below ofa floor coal bed levels there are again additional Q sand suite with few tens 10 6 m 3 . On open pit ‘‘D‘‘ they areunder economic exploitation and valorisation. Finnacial and other type of benefits in that ‘‘all-together‘‘resources exploitation are obvious and significant.KEY WORDS : lignite, Q sand, gravel,non-metalic resousrces1. GEOGRAFSKI POLOŢAJKolubarski ugljonosni basen nalazi se u zapadnoj Srbiji na oko 50 km jugozapadno od Beograda,površine je 600 km 2 (slika 1). Rekom Kolubarom podeljen je na istoĉni i zapadni deo. U njegovomistoĉnom delu nalaze se aktivni površinski kopovi uglja polje ‘‘B‘‘ i polje ‘‘D‘‘, zatvoreni površinskikop polje ‘‘A‘‘ i istraţna polja ‘‘C‘‘, ‘‘E‘‘, ‘‘F‘‘, ‘‘G‘‘, Šopić-Lazarevac‘‘ i ‘‘Veliki Crljeni‘‘. Uzapadnom delu basena nalaze se površinski kopovi uglja u radu ‘‘Tamnava Istoĉno i Zapadno polje,kao i istraţno polje ‘‘Radljevo‘‘.Slika 1. Poloţaj kolubarskog ugljonosnog basena, unutar crvene linije2. GEOLOŠKA GRAĐA UGLJONOSNOG BASENAKolubarski basen izgraĊen je od stena paleozojske, mezozojske i kenozojske starosti (slike 2 i 3).Podlogu (fundament) podruĉja izgraĊuju paleozojske škriljave stene. Lokalno se u obodnim delovimabasena mogu registrovati sedimentne i magmatske stene mezozojske starosti. Transgresivno preko njihtaloţena je kenozojska miocen/pliocenska serija sedimentnih stena koja je produktivna u pogleduuglja. Osim uglja, u okviru ove sedimentne serije stena nalaza se i znaĉajne mase pratećih korisnih541