Journal of Geosciences and Geomatics
ISSN (Print): 2373-6690 ISSN (Online): 2373-6704 Website: http://www.sciepub.com/journal/jgg Editor-in-chief: Maria TSAKIRI
Open Access
Journal Browser
Go
Journal of Geosciences and Geomatics. 2014, 2(5A), 1-6
DOI: 10.12691/jgg-2-5A-1
Open AccessResearch Article

Geometry of Fold Structures and Their Interference Patterns in Banded Iron Formation of Eastern Limb of Bonai-Keonjhar Belt, Odisha, India

D. Beura1, and B. Satpathy2

1P.G. Department of Geology, Utkal University, Bhubaneswar

2TISCO, Joda

Pub. Date: November 20, 2014
(This article belongs to the Special Issue Recent Trends in Geological Researches)

Cite this paper:
D. Beura and B. Satpathy. Geometry of Fold Structures and Their Interference Patterns in Banded Iron Formation of Eastern Limb of Bonai-Keonjhar Belt, Odisha, India. Journal of Geosciences and Geomatics. 2014; 2(5A):1-6. doi: 10.12691/jgg-2-5A-1

Abstract

The Bonai-Keonjhar belt of Odisha is famous for its potential iron formation that lies in the western flank of the North Odisha Iron Ore Craton (NOIOC). This horse shoe shaped belt having two limbs form a distinct ‘U’-shaped pattern, which is considered as the youngest Iron Ore Group. Banded Iron Formation (BIF) of the Precambrian age occurs in huge amount in the belt comprising of alternate layers of iron bearing minerals and silica along with iron ores and associated rocks. The abundant lithomembers of the study area that comprise of banded hematite jasper, banded hematite quartzite, banded hematite chert, banded shale and ferruginous shale are un-metamorphosed and lack of any intrusive. The general structural disposition of the rocks of the belt is a synclinorium trending NNE-SSE direction having low plunge towards NNE. The rocks of the area are experienced with prolonged deformations correlated with iron ore orogeny and impact has been manifested in form wide range fold geometry. The structural disposition and pattern of the study area consist of three distinct types of folds, which represent deformation history of the area and individual geometric dissimilarity. One set of folds is found to be open upright folds of symmetric or asymmetric nature. The second set consists of tight isoclinal folds, which are horizontal or overturned. The third set comprises of more open folds with broad warps. Such folds of three generations have been superimposed to produce different types of interference patterns.

Keywords:
Banded Iron Formation fold geometry BK belt Odisha

Creative CommonsThis work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

Figures

Figure of 8

References:

[1]  Acharya, S. (1984). Stratigraphic and structural evolution of the rocks of Iron ore basin In Singhbhum-Orissa iron ore province. Crustal evolution of the Indian shield and its bearing on metallogeny. Ind. Jour. Earth Sci, pp. 19-28.
 
[2]  Acharya, S. (2000). Some observation on parts of the Banded Iron Formations of Eastern India. Presidential Address: 87th session Indian Science Congress: section of Earth System Sciences, pp.1-34.
 
[3]  Acharya, S., (2005) Genetic modeling of iron and manganese ore deposits of the Joda-Koira Iron Ore basin (F1-F3), India-Its application to explorations, Proc. Vol. Int. Sem., Vision Mineral development 2020 organised by SGAT, pp 44-67.
 
[4]  Beura, D. (2002) Iron formation, Iron ores and associated rocks around Badampahar region, Mayurbhanj district, Orissa-their structures, stratigraphy and chemistry. Unpubl. Thesis, Utkal Univ., pp 200.
 
[5]  Beura, D. and Singh, P. (2005) Geological setting and mineral deposits of Archaean schist belt-A case study around Badampahar belt, north Orissa, India, Int. Sem.Khon Ken Uni. Thailand, pp. 326-329.
 
[6]  Beura, D., Singh, P. and Acharya, S. (2007) BIF and iron ore: an academic perspective and commercial vision. Vistas in Geol. Res, Spl. Pub. No. 6, pp. 71-73.
 
[7]  Beura, D. (2014) Tectono-Structural Overviews of Iron Formation of North Odisha, India.” Journal of Geosciences and Geomatics, vol. 2, no., pp. 57-61.
 
[8]  Chatterjee, A.K. and Mukherji, P. (1981). The structural set up of a part of the Malangtoli iron ore deposit, Orissa. J. Geol. Soc. India, v. 22, pp. 121-130.
 
[9]  Ghosh G and Mukhopadhyay J (2007) Reappraisal of the structure of the Western Iron Ore Group, Singhbhum craton, eastern India: Implications for the exploration of BIF-hosted iron ore deposits; Gondwana Res. 12 pp. 525-532.
 
[10]  Iyengar, S. V. P and Murthy, Y. G. K. (1982) The evolution of the Archean proterozoic crust in parts of Bihar and Orissa eastern India. Rec. Geol. Surv. India, v. 112, pp. 1-6.
 
[11]  Jones, H. C. (1934) The iron ores deposits of Bihar and Orissa. Geol. Surv. India Memoir, v. 63, pp. 375.
 
[12]  Mukhopadhaya D. The Archaean nucleus of Singhbhum: the present state of knowledge. Gondwana Res 2001; 4: 307-18.
 
[13]  Mukhopadhyay, D. and Sengupta, S., (1979) ‘Eyed folds’ in Precambrian marbles from southeastern Rajasthan, India. Bull. Geol. Soc. Am. 90, pp. 397-404.
 
[14]  Murthy V N and Acharya S (1975) Lithostratigraphy of the Precambrian rocks around Koira, Sundargarh Dt. Orissa; J. Geol. Soc. India 16 55-68.
 
[15]  Ramsay, J.G., (1967) Folding and Fracturing of Rocks. McGraw-Hill, New York, pp. 568.
 
[16]  Saha, A.K (1994) Crustal evolution of Singbhum, North Orissa, Eastern India. Mem. 27, Geol. Soc. India, 341p.
 
[17]  Sarkar, S. N. and Saha, A. K. (1962). A revision of the Precambrian stratigraphy and tectonics of Singhbhum and adjacent regions Quart. Jeol. Min. Met. Soc. Ind. v. 34, pp. 97-136.
 
[18]  Sarkar, S.N. and Saha, A.K. (1977). The present status of the Precambrian stratigraphy, tectonics and geochronology of Singhbhum-Keonjhar-Mayurbhanj region, Eastern India, Indian J. Earth Sciences, S. Ray volume, pp. 37-66.
 
[19]  Sarangi, S.K. and Acharya, S. (1975). Stratigraphy of the Iron ore Group around Khandadhar, Sundergarh distrit, Orissa. Ind. Jour. Earth Sci. v. 2, pp. 182-189.
 
[20]  Satpathy, B. and Beura, D. (2011) Lithological Discourse on BIF of Eastern limb of Bonai-Keonjhar belt with special reference to Bansapani-Jilling-Jajang area of Keonjhar district of Orissa. Vistas In Geological Research. U.U. Spl. Publ. in Geology (10) pp. 144-154.
 
[21]  Sengupta S, Acharya SK, de Smith JB. (1997) Geochemistry of Archaean volcanic rocks from Iron Ore Supergroup, Singhbhum, Eastern India. Proc Indian Acad Sci, Earth Planet Sci 106, pp. 327-342.