Banded Iron Formation of Bonai-Keonjhar Essay Example | Topics and Well Written Essays - 250 words

bind Iron Formation of Bonai-Keonjhar - Essay ExampleBK is the youngest adjure ore in the horseshoe belt. The focus is on Banspani-JillingJajang bit of the urge ore. BIF of Banspani-JillingJajang section of BK belt covers a section of the Precambrian super crustal north Odisha iron ore super group.Geology the BIF hosts tabular strata-bound bodies mainly formed of high-grade hematite ores. Banspan-JillingJajang covers about 40 sq. km. above the BIF craft the high-grade hematite ores which cover three stratigraphic positions. The southern range has massive and hard laminated cores. These ore bodies form the flock of the resource. They are tubular in shape, irregular in size and stupefy a thickness ranging from 2 and 50m. Langalata forms the bulk of the ore deposit, taking about 73% of it. Banspani-JillingJajang deposits have a total reserve of about 61.7 cardinal tons. Petrography the rock types in the study area include banded hematite Jasper (BHJ), banded manganese organisati on (BMnF), banded hematite shale (BHS), banded shale, banded hematite quartzite (BHZ) and iron ore bodies. BHJ and BHZ are dominant rock types. They have alternating bands of silica and iron mineral. Some of the iron minerals in the BIF include goethite, martite, partitioned magnetite, hematite, and specularity. Hematite is the dominant iron mineral in the area. The varieties of silica forming alternate bands with the mentioned iron minerals include jasper, quartz, and chert. The iron minerals are formed by three distinct processes thematization, marketization, and graphitization.