In this paper, we described the petrographical characters of the Mn-bearing
rock types outcropping in the Kalakhuta, Ghatia, Gararia, Itala, Wagaicha,
Tambesara and Talwara villages of Banswara district. The Mn associated rocks
in the study area are phyllite, schist, quartzite and limestone. The mineral assemblage
in phyllite formed under greenschist facies metamorphism. Petrographic
studies of various phyllite samples also reveal that porphyroblasts of
biotite sat in the fine-grained micaceous matrix (Biotite, muscovite, chlorite)
along with quartz, opaque and ore minerals. Petrographic studies of schist reveal
its formation under prograde metamorphism. Mineral assemblages observed
in schist are typical of greenschist to lower amphibolite facies. The
various schist samples at places show clusters made up of perfect rhombshaped
garnets which suggest the increase in the grade of metamorphism. The
quartzites are disposed conformably with the phyllites, and are at times brecciated
and re-cemented by secondary chert and manganese. These Mn-bearing
quartzites are with sutured/serrated and straight grain boundaries. The
quartzite samples are fully composed of quartz showing undulose extinction
with subordinate feldspar, micas and carbonatic materials. The petrographic
characteristics explain that mostly limestones are the dolomitic composition
but some ferruginous varieties are also noticed at places. The purer variety of
limestone consists of calcite, dolomite and some magnetite but tremolite,
quartz and some minute flakes of biotite also occur in impure variety.
References
[1]
Crookshank, H. (1946) Report on Recent Tour to Rajputana. (G.S.I Unpublished Progress Report for the Field Season 1946-47) http://www.portal.gsi.gov.in/gsiDoc/fspReports/WRO/Pre-1950/WRO_13678_1945_1946_REPORT_1.pdf
[2]
Sinha, A.P. (1980) A Report on Manganese Investigation (Garariya-Ratimauri Manganese Belt), Banswara District, Rajasthan. (G.S.I Unpublished Progress Report for the Field Season 1980-81) http://www.portal.gsi.gov.in/gsiDoc/fspReports/WRO/1980-1985/WRO_12750_1980_1981_REPORT_1.pdf
[3]
Babel, G.L. (1985) Report on Investigation Carried Out for Assessment of Manganese Deposits in Tambesra-Tima Mahuri Area, Tehsil Kushalgarh, District Banswara. Rp No. 1547, Year 1985-86, Department of Mines & Geology, Rajasthan. http://www.dmgoms.mines.rajasthan.gov.in/DMG/Geo_Report_PRfirstSite.jsp
[4]
Heron, A.M. (1953) Geology of Central Rajasthan. Mem. 79, Geological Survey of India, 339.
[5]
Gupta, B.C. (1934) The Geology of Central Mewar. Memoir of Geological Society of India, 65, 107-168.
[6]
Joshi, S.V. and Jangid, O.P. (2008) Review for Manganese, Calcite and High Grade Limestone near Villages Tambesara, Chikli, Lasodla and Kala Khunta Tehsil Khushalgarh District Banswara. Rp. No. 2236, Year 2008-09, Department of Mines & Geology, Rajasthan. http://www.dmgoms.mines.rajasthan.gov.in/DMG/Geo_Report_PRfirstSite.jsp
[7]
Joshi, S.V. and Jangid, O.P. (2009) Regional Mineral Survey for Manganese, Limestone, Iron Ore near Village Jalampura, Maska, Mahuri, Kasarwari and Pandawal Chotta Tehsil Kushalgarh District Banawara . Rp. No 2237, Year 2009-10, Department of Mines & Geology, Rajasthan. http://www.dmgoms.mines.rajasthan.gov.in/DMG/Geo_Report_PRfirstSite.jsp
[8]
Sukhwal, K.L. and Dixit, R.K. (2000) Regional Mineral Survey for Limestone and Industrial Minerals like Manganese N/V Moian, Jaspura, Rangi, Agoria etc., Tehsil Kushalgarh, District Banswara. Rp. No. 1657, Year 2001-02, Department of Mines & Geology, Rajasthan. http://www.dmgoms.mines.rajasthan.gov.in/DMG/Geo_Report_PRfirstSite.jsp
[9]
Khan, K.F. and Samsuddin, K. (2016) Petro-Mineralogical Studies of Phosphorite Deposit of Sallopat Block of Banswara District, Rajasthan, India. World Academy of Science, Engineering and Technology. International Journal of Environmental, Chemical, Ecological, Geological and Geophysical Engineering, 10, 666-673.
[10]
Roy, A.B. and Purohit, R. (2015) Lithostratigraphic, Geochronological and Depositional Framework of the Precambrian Basins of the Aravalli Mountain and Adjoining Areas, Rajasthan, India. Geological Society London, Memoirs, 43, 55-65.
[11]
Schleicher, H., Tod, W., Viladkar, S.G. and Schimdt, F. (1997) Pb-Pb Age Determination of Newania and Savattur Carbonatites of India Evidence of Multiple Stage Histories. Chemical Geology, 140, 261-270. https://doi.org/10.1016/S0009-2541(97)00022-3
[12]
Deb, M. and Thorpe, R.I. (2004) Geochronological Constraints in the Precambrian Geology of Rajasthan and Their Metallogenic Implications. In: Deb, M. and Goodfellow, W.D. (Eds.), Sediment-hosted Lead-Zinc Sulphide Deposits, Narosa, New Delhi, 246-263.
[13]
Gupta, S.N., Arora, Y.K., Mathur, R.K., Iqballuddin, Prasad, B., Sahai, T.N. and Sharma, S.B. (1980) Lithostratigraphic Map of Aravalli Region Southern Rajasthan and Northern Gujrat. Published Geological Survey of India, Hyderabad.
[14]
Gupta, S.N., Mathur, R.K. and Arora, Y.K. (1992) Lithostratigraphy of Proterozoic rocks of Rajasthan and Gujarat—A Review Record. Geological Survey of India, 115, 63-85.
[15]
Gupta, S.N., Arora, Y.K., Mathur, R.K., Iqbaluddin, Prasad, B., Sahai, T.N. and Sharma, S.B. (1995) Geological Map of the Precambrians of the Aravalli Region, Southern Rajasthan and Northeastern Gujarat, India. Geological Survey of India Publication.
[16]
Gupta, S.N., Arora, Y.K., Mathur, R.K., Iqballuddin, Prasad, B., Sahai, T.N. and Sharma, S.B. (1997) The Precambrian Geology of the Aravalli Region, Southern Rajasthan and North-Eastern Gujarat. Memoir Geological Survey of India, 123, 59-61.
[17]
Gupta, B.C. and Mukherjee, P.N. (1934) The Geology of Gujarat and Southern Rajputana. Record Geological Survey of India, 73, pt-2.
[18]
Roy, A.B. and Jakhar, S.R. (2002) Geology of Rajasthan (Northwest India): Precambrian to Recent. Scientific Publishers, India, 75-154.
[19]
Mamtani, M.A. (1998) Deformational Mechanisms of the Lunavada Pre Cambrian Rocks Panchmahal District Gujarat. Department of Geology, Maharaja Sayajirao University of Baroda. http://hdl.handle.net/10603/58797
[20]
Gadhadharan, A. (1978) Report on the Systematic Mapping in Parts of Banswara, Udaipur and Chittorgarh Districts, Rajasthan. Geological Survey of India, Unpublished Progress Report for the Field Season 1977-78. http://www.portal.gsi.gov.in/gsiDoc/fspReports/WRO/1975-1980/WRO_11200_1977_1978_REPORT_1.pdf
[21]
Mukherjee, K.K. and Kapoor, S.C. (1960) Report on Detailed Geological Mapping of the Banswara Manganese Ore Belt, Banswara District, Rajasthan. Geological Survey of India, Unpublished Progress Report for the Field Season 1959-60. http://www.portal.gsi.gov.in/gsiDoc/fspReports/WRO/1955-1960/WRO_2134_1959_1960_REPORT_1.pdf
[22]
Iqballuddin and Negi, R.S. (1971) Systematic Geological Mapping in Parts of Banswara & Udaipur Districts, Rajasthan. Geological Survey of India, Unpublished Progress Report for the Field Season 1971-72. http://www.portal.gsi.gov.in/gsiDoc/fspReports/WRO/1970-1975/WRO_11307_1971_1972_REPORT_1.pdf
[23]
Mamtani, M.A., Merh, S.S., Karanth, R.V. and Greiling, R.O. (2000) Time Relationship between Metamorphism and Deformation in the Proterozoic Rocks of Lunavada Region, Southern Aravalli Mountain Belt (India). Journal of Asian Earth Sciences, 19, 195-205.
[24]
Ro, P.K. (1985) Report on the Systematic Mapping in Parts of Banswara Districts, Rajasthan. Geological Survey of India, Unpublished Progress Report for the Field Season 1983-84. http://www.portal.gsi.gov.in/gsiDoc/fspReports/WRO/1980-1985/WRO_23740_1983_1984_REPORT_1.pdf
[25]
Rasul, S.H. and Khan, M.A. (1963) The Geology of the Manganese Ore Deposits of Talwara, District Banswara, Rajasthan. Proceedings of the Indian Academy of Sciences, 57, 190-198.
[26]
Roy, B.C. (1957) The Manganese Ore Deposits in Udaipur and Banswara Districts, Rajasthan. Bulletin Geological Survey of India, Series A-Economic Geology 14, 1-31.
[27]
Harker, A. (1939) Metamorphism. Methuen and Co., 166.
[28]
Siddiquie, F.N. (2010) Petrographical Characters of Some Important Host Rocks in Vizianagarm Manganese Ores Belt (A.P.) India. University of Mauritious Research Journal, 16. https://www.ajol.info/index.php/umrj/article/download/130802/120375
[29]
Garg, R.L. (1973) Report on Systematic Geological Mapping around Banswara District, Rajasthan. Geological Survey of India, Unpublished Progress Report for the Field Season 1973-74. http://www.portal.gsi.gov.in/gsiDoc/fspReports/WRO/1970-1975/WRO_4447_1973_1974_REPORT_1.pdf
[30]
Urai, J., Means, W.D. and Lister, G.S. (1986) Dynamic Recrystallization of Minerals. American Geophysical Union Monograph, 36, 161-200.
[31]
Passchier, C.W. and Trouw, R.A.J. (1996) Microtectonics. Springer-Verlag, Heidelberg. In: Mamtani, M.A., Merh, S.S., Karanth, R. V. and Greiling, R.O., Eds. (2000), Time Relationship between Metamorphism and Deformation in the Proterozoic Rocks of Lunavada Region, Southern Aravalli Mountain Belt (India), Journal of Asian Earth Sciences, 195-205.
