Abstract
The pelitic schists of the area around Kandra, Singhbhum district, Jharkhand belong to the Chaibasa Formation of the Singhbhum Group, which constitute a part of the youngest Precambrian orogenic cycle of the Singhbhum region. Structurally, the area represents the Singhbhum anticlinorium and is overlain by Dalma traps which form the synclinorium towards the north of the area around Kandra. This area mainly consists of medium to high grade rocks belonging to greenschist and amphibolite facies. These rocks are folded in the E-W trending doubly plunging folds (F1) overturned towards the south with low plunges and superposed by cross-folds (F2). The spatial distribution of the index minerals in the pelitic schists of the area shows Barrovian type of metamorphism. Four isograds, viz. biotite, garnet, staurolite and sillimanite have been delineated by the first appearance of the index minerals and also by isograd reactions. The textural relation suggests that sillimanite is formed from staurolite consumption reaction instead of kyanite consumption.
Similar content being viewed by others
References
Carmichael, D.M. (1969) On the mechanism of prograde metamorphic reactions in quartz-bearing pelitic rocks. Contr. Mineral. Petrol., v.20, pp.244–67.
Carmichael, D.M. (1970) Intersecting isograds in the Whetstone Lake area, Ontario. Jour. Petrol., v.11, pp.147–81.
Chakraborty, K.R. and Sen, S.K. (1967) Regional metamorphism of pelitic rocks around Kandra, Singhbhum, Bihar. Contrib. Mineral. Petrol., v.16, pp.210–32.
Chinner, G.A. (1961) The origin of sillimanite in Glen Clova, Angus. Jour. Petrol., v.2, pp.312–323.
Chinner, G.A. (1965) The kyanite isograd in Glen Clova, Angus, Scotland. Mineral. Mag., Tilley volume, v.34, pp.132–43.
Dunn, J.A. (1929) The geology of north Singhbhum including parts of Ranchi and Manbhum districts. Mem. Geol. Surv. India, no.54, pp.1–166.
Dunn, J.A. (1942) Granite and magmatism and metamorphism. Econ. Geol., v.33, pp.231–238.
Dunn, J.A. and Dey, A.K. (1942) Geology and petrology of eastern Singhbhum and surrounding areas. Mem. Geol. Surv. India, v.69, pt.2, pp.281–456.
Dwivedi and Lal (1992) Prograde Barrovian type of metamorphism of pelitic rocks around Kandra, district Singhbhum, Bihar. Proc. Indian Nat. Sci. Acad., v.58A, no.3, pp.195–206.
Dwivedi, S.B., Singh, T.N. and Prakash, D. (1993) Precambrian metamorphites of the area around Kandra, district Singhbhum, Bihar. Indian Jour. Engineers, v.23(1 & 2), pp.195–206.
Evans, B.W. (1965a) Application of a reaction rate method to the breakdown equilibria of muscovite and muscovite plus quartz. Am. Jour. Sci., v.263, pp.647–67.
Francis, G.H. (1956) Facies boundaries in pelites at the middle grades of regional metamorphism. Geol. Mag., v.93, pp.353–368.
Guidotti, C.V. (1970) The mineralogy and petrology of the transition from the lower to upper sillimanite zone in the Oquossoc area, Maine. Jour. Petrol., v.11, pt.2, pp.277–336.
Hollister, L.S. (1969a) Contact metamorphism in the Kwoiek area of British Columbia: An end member of the metamorphic process. Geol. Soc. Amer. Bull., v.80, pp.2465–2494.
Hoschek, G. (1969): The stability of staurolite and Chloritoid and their significance in metamorphism of pelitic rocks. Contr. Mineral, Carlton University, Geochem. pp., 66-1.
Lal, R.K., & Singh, J.B. (1978): Prograde polyphase regional metamorphism and metamorphic reactions in pelitic schists at Sini, district Singhbhum, India. Neues Jahrb. Miner. Abh, v.131, pp.304–33.
Lal, R.K., Ackermand, D. and Singh, J.B. (1987) Geothermobarometry in Barrovian type of metamorphism of politic schists, Sini, district Singhbhum. Geological Evolution of Peninsular India—Petrological and Structural Aspect (Professor Saurindranath Sen, Commemoration Volume), Recent Res. Geol., v.13, pp.125–142.
Mitra, R. (1954): Pelitic metamorphites around Kandra, Singhbhum. Quart. Jour. Geol. Min. Met. Soc. India, v.26, no.3-4, pp.149–168.
Ramakrishnan & Vaidyanadhan, (2010) Geology of India, Vol. 1, Geological Society of India, Bangalore, 556p.
Saha, A.K. (1970) The present status of the Precambrian geology of the Singhbhum region. Proc. 2ndSymp. Upper Mantle Project, Hyderabad, pp.259–78.
Sarkar, S.N. and Saha, A.K. (1962) A revision of the Precambrian stratigraphy and tectonics of Singhbhum and adjacent regions. Quart. Jour. Geol. Min. Met. Soc. India, v.34, pp.97–136.
Sengupta, N., Mukhopadhyay, D., Sengupta, P., and Hoffbauer R. (2005) Tourmaline-bearing rocks in the Singhbhum shear zone, eastern India: Evidence of boron infiltration during regional metamorphism, Amer. Miner., v.90, pp.1241–1255.
Thompson, J.B. Jr. and Norton, S.A. (1968) Paleozoic regional metamorphism in New England and adjacent area, in “Studies of Appalachian Geology: Northern and Maritime. In: “E-an Zen, W.S. White, J.B. Hadley, and J.B. Thompson, Jr., (Eds.), Interscience, a division of Wiley, New York, Chapter 24, pp. 319–27.
Tozer, C.F. (1955) The mode of occurrence of sillimanite in the Glen Dist. Cy. Donegal. Geol. Mag., v.92, pp. 319–20.
Turner, F.J., and J. Verhoogen (1960) Igneous and metamorphic petrology. New York: McGraw Hill Book Co.
Watson, J. (1948) Late sillimanite in the migmatites of Sutherland. Geol. Mag. London, v.85, pp. 149–62.
Winkler (2013) Petrogenesis of Metamorphic Rocks, Springer Science & Business Media, 4th Edition.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Prakash, D., Patel, D.K., Tewari, S. et al. Metamorphic zonal sequences of pelitic schists and gneisses from the area around Kandra (Jharkhand): Constraints from field and textural relationship. J Geol Soc India 89, 139–144 (2017). https://doi.org/10.1007/s12594-017-0577-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12594-017-0577-z