Journal Press India®
Geological Set Up and Mode of Occurrence of Stromatolitic Phosphorites of Gandhra, Panchmahals, Gujarat, India
Vol 2 , Issue 3 , July - September 2014 | Pages: 33-36 | Research Paper
Received: July 20, 2014 | Revised: July 30, 2014 | Accepted: August 20, 2014 | Published Online: September 15, 2014
Author Details
( * ) denotes Corresponding author
Phosphorite bearing stromatolites of the Champaner Group of Aravalli Super Group have been reported from Panchmahals district, Gujarat. The phosphatic horizon is confined to the Khandia Formation. The stromatolitic phosphorite is traceable over a distance of 2.7 km within crystalline dolomitic limestone around Ranjitpura i.e north of Gandhra and Chalvad villages with their horizontal width of 10 to 30 meters. The Precambrian phosphorite deposits of Panchmahals district, Gujarat show a great variation in their mode of occurrences. They occur as discontinuous lenses and bands, found associated with the dolomitic limestone of the area. On the basis of physico-morphological features, the phosphorite deposits of Panchmahals have been classified into the following varieties, viz., Columnar stromatolitic phosphorite, Laminated stromatolitic phosphorite, Pelletal phosphorite, Nodular phosphorite and Bedded phosphorite.
Keywords
Phosphorite; Variation; Occurrences; Stromatolites; Limestone; Deposits.
- K. Gopinath, K. Krishnamurti, Search for basemetals and phosphatic deposits in parts of Baroda and Panchmahals districts, Gujarat. Unpubl. Rep. Geological. Survey of India, 1968
- Muktinath, V. N. Sant, S. P. Saxena, N. Das, D. K. Chakravarty, B. Charkraborty, G. B. Singh. Precambrian phosphorite near Udaipur, Rajasthan, jour, Mines Metals and Fuels, 17, 335-9
- D. M. Banerjee, Precambrian stromatolitic phosphorites of Udaipur, Rajasthan, India, Geol. Soc. Amer. Bull., 82, 1971, 2319-30
- D. M. Banerjee, Environment of formation of some older and younger phosphorites of India, Intern. Sed. Cong. 9th Proc. Theme 9, 1975, 1-8
- D. M. Banerjee, Chemical rhythemicity in the Precambrian Laminated phosphatic stromatolites and its bearing on the origin of algal phosphorites. Ind. Jour. Earth Sc., 5, 1978, 102-10
- L. A. K. Rao, Origin of Phosphorite deposits around Matoon and Dakankotra Udaipur district, Rajasthan, Unpubl. Ph.D. Thesis, A.M.U., Aligarh, 1982
- R. Chaudhuri, A. K. Chakraborty, S. K. Ghosh, K. C. Banerjee, Studies on Indian phosphates, Part I, Technology, 5, 1968, 285-93
- N. K. Rao, G. V. V. Rao, Petrographic study of some Indian phosphorites. Jour. Geol. Soc Ind, 12, 1971, 356-67
- B. Mukharjee, P. K. Chatterjee, Mineralogy of phosphorites from Udaipur, Rajasthan. Ind. Min., 44, 1972, 335-9
- D. M. Banerjee, P. C. Basu, N. Srivastava, Petrology, mineralogy, geochemistry and origin of the Precambrian Aravallian phosphorite deposits of Udaipur and Jhabua, India. Eco. Goel., 75, 99, 1980, 1181-99
- G. N. Dwivedi, Phosphorite in Precambrian Champaner Group near Gandhra, Panchmahals district, Gujarat, IV Inter field Workshop and Seminar on Phosphorite IGCP, Project- 156. Nov. 25-27 Udaipur Rajasthan GSI, Sp Publ., 19, 1981, 193-49
- S. Rehan Ali, Origin of the Precambrian Phosphorite deposits of Panchmahals district, Gujarat, unpbl. PhD. Thesis, A.M.U Aligrah, India, 135, 1996
- S. Rehan Ali, L. A. K. Rao, Petromineralogy, geochemistry and depositional environment of Precambrian Stromatolitic Phosphorites of Gandhra, Panchmahals district, (Gujarat), Bull. Ind. Geol. Ass. 36 (1 & 2), 2003, 11-22
- S. Rehan Ali, L. A. K. Rao, Trace Elements Geochemistry of Precambrian Stromatolitic phosphorites around Gandhra, Panchmahals District, Jour. Applied Geochemistry, 7(1), 2005, 36-42
Abstract Views: 5
PDF Views: 111