Geology and Petrography of Metamorphic Rocks in Mauji and Reshian Area, District Muzaffarabad Azad Kashmir, Pakistan
Abstract
Geological mapping was conducted in 13 km2 area in Mauji and Reshian, District Muzaffarabad, Azad Kashmir. The work has involved detailed petrographic studies. Metasedimentary rocks in the Mauji-Reshian area consist of graphite, pelite and arenaceous schists with minor gypsum and calcareous bands belonging to the Salkhalas. These rocks are intruded by biotite granite gneiss and numerous dolerite dykes. The metasediments have been metamorphosed under the green schist facies conditions. An almandine garnet schist has developed probably in the aureole around the biotite granite gneiss. The mineralogical assemblage of the schist together with the presence of gypsum and calcareous bands in the area is indicative of flysch type deposits as a result of sedimentation under shallow water marine conditions. The graphite schist is characterized by extremely fine grained quartz averaging 50 um in size, abundant carbonaceous material and ubiquitous presence of pyrite suggesting a black shale origin for these rocks.
References
Calkins, J.A. and Matin, A.S.A., 1967. The geology and mineral resources the Garhi Habibullah quadrangle and the Kakul area, Hazara District, West Pakistan. U.S. Geol. Survey open file map, 55 pp.
Deer, W.A., Howie, R.A. and Zussman, J. ,1962. Rock Forming Minerals (Volume 1). Longmans, Green and Co., London.
Gansser, A., 1964. Geology of the Himalayas. Interscience Publishers, London.
Gardezi, AH., 1970. Notes on the geology of the area around Nathiagali, District Hazara, West Pakistan. Geol. Bull. Punjab Univ. 7, 71-78.
Harker, Alfred., 1939. Metamorphism. Methuem and Co., Ltd., London.
Middlemiss, C.S., 1910. A revision of the Silurian Trias sequence in Kashmir. Rec. Geol. Survey India. 40 (3), 206-260.
Middlemiss, C.S., and Bion, H.S., 1913. Kashmir Rec. Geol. Survey India. 43, 37-38.
Rahman, M.A., 1979. Geology, mineralogy and genesis of uranium mineralization in Mauji-Reshian area, Azad Kashmir, Pakistan. M.Sc. Thesis, University of Aberdeen.
Spry, Alan., 1969. Metamorphic Textures. Pergnmon Press, Oxford.
Turner, F.J. and Verhoogen, J., 1960. Igneous and Metamorphic Petrology. McGraw-Hill, New York.
Wadia, D.N., 1931. The Syntaxis of the northwest Himalayas: Its rocks, tectonics and orogeny. Rec. Geol. Survey India, 65, 189-220.
Wadia, D.N., 1961. Geology of India. Macmillan and Co. New York.
Williams, H., Turner, F.J. and Gilbert, C.M., 1954. Petrography. W.H. Freeman and Co., San Francisco.
Winkler, H.G.F., 1965. Petrogenesis of Metamorphic Rocks. Springer-Verlag, Berlin.
