Jeoloji Münendisliği Dergisi

Fosailiferous plaser occurrences and reïictê of ultrabasic rocks of Precambrian age near Taşbaşî; Çukurca-HakkarL

ABSTRACT: Syngenetically fomıed Çukurca-Ta^bafi fossiüferous plaser deposit occura in Cambriaıı quartzites, Microscopic investigations on samples taken from the deposit revealed various heavy minerals (haematite with rutüe, haematite, rutile, chromite, ilmenite, magnetite, limonite, psüomelane, pyırhotite, ehaJcopyrite, zircon and tourmaline), quartz, feldspar (microline, orthoclase and plagioclase), rock fragments, sericite, chlorite and muscovite. Chemical analyses of the samples shewed high concentrations of F^O3, mo2 and ZrOi, H future feasibility studio in the area give positive results the Çukurca-Ta§bap fossiMferous plaser deposit can be economical for Ti, Fe and Zr production. Additionally, the presence of chromite suggests that this mineral originated from ultrabasic rocks of Vre- Cambrian age.