#TITLE_ALTERNATIVE#

• Main Author: DEVI MIRNAWATI (NIM:12114078), UCIK
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/31396
• Institution: Institut Teknologi Bandung

Technological developments in the automotive sector encourage world iron ore <br /> <br /> consumption which also encourage iron ore exploration activities in Indonesia. One of <br /> <br /> the ore deposits in Indonesia is Fe Skarn deposits at Simpang Dua, Tapaktuan Aceh <br /> <br /> Selatan. For easier exploration activities in the area, it will be done research on <br /> <br /> mineralogical characteristics, mineral texture, genesis and paragenesis studies. <br /> <br /> Iron ore samples were taken by channel sampling method at CS1 and CS2 locations in <br /> <br /> Simpang Dua, Tapaktuan, Aceh Selatan. Rock samples were analyzed by megaskopis <br /> <br /> observation method, mineragraphy analysis and petrographic analysis. <br /> <br /> Based on the result of the research, iron ore samples at CS1 and CS2 sampling channel <br /> <br /> location, Simpang Dua, Tapaktuan, Aceh Selatan are massive iron ores dominated by <br /> <br /> iron ore oxide / hydroxide minerals such as magnetite, hematite, maghemit and goethtite, <br /> <br /> sulphides such as pyrite, chalcopyrite and covellite, while the rock-forming mineral <br /> <br /> observed only quartz minerals. Based on literature study, mineralogical analysis, and <br /> <br /> texture analysis, the sequence of mineral formation in iron ore samples at the research <br /> <br /> site is the isochemical stage as evidenced by the presence of quartzite in the sample, the <br /> <br /> prograde stage of metasomatic alteration is evidenced by the presence of magnetite <br /> <br /> massive, quartz, and sulphide minerals. The retrograde alteration stage is evidenced by <br /> <br /> the magnetite and hematie specularite. But, there is no alteration minerals of wallrocks <br /> <br /> such as: epidote, actinolite and chlorite, because the samples researched is only iron ore. <br /> <br /> The sample has undergone weathering which is characterized by the presence of goethite <br /> <br /> minerals and some cavities in the samples.