The Structural Set up of Apart of the Malangtoli Iron Ore Deposit, Orissa

The paper describes the localisation of iron ore bodies in the Malangtoli group forming the southeastern end of the Bonai Synclinorium comprising Singhbhum-Keonjhar-Sundergarh group of iron formations. Three fold systems affect the area. Barring a few instances which are due to facies changes, the overall pattern of Occurrence of iron ore bodies is fairly conformable with the tectonic set up and the behaviour of such ore bodies are continuous with the structural pattern. The distribution of iron ore body/bodies in space is/are controlled by the superposed fold systems, the ore body reaching maximum depths in structural basins and/or canoes and minimum depths (occasionally base rock outcropping) in structural highs, i.e., domes and inverted canoes. Certain conclusions arising out of this are analysed.