A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Avadich, P. C.
- Synthesis of Geological and Airborne Geophysical Data for Prognosticating New Area for the Exploration of Lead and Zinc in Sindesar Khurd Area, Rajpura-Dariba Belt, Rajsamand District, Rajasthan
Authors
1 Department of Geology, MLS University, Udaipur - 313 001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 75, No 5 (2010), Pagination: 731-738Abstract
In the Rajpura-Dariba belt zinc and lead mineralization was established on the basis of gossan and opinions were given that the deposits are stratiform and syngenetic. During last two decades metamorphism and volcanic processes have been attributed for the generation of exhalative and remobilized lead-zinc ore bodies. Subsequent exploration was based on the concept of successive borehole planning around positive intersections. Areas having surface indications of base metal mineralization and their extensions have been already explored. Recent deep drilling by Hindustan Zinc Limited (HZL) in this area has intersected rich ore lodes, thereby confirming depth ward continuity of ore zones at some places. It indicates possibility of searching hidden deposits by innovative techniques. Therefore, today, there is a challenge before geoscientists to discover new deposits in this area by an exploration technique which should have low risk, consume less time and it should be cost effective.
In view of the above objective for Rajpura-Dariba belt, an integrated method of exploration has been discussed. The exploration strategy is based on synthesis of all the available data and its reinterpretation to prognosticate favourable sites of exploration and also to suggest new scheme of exploration. Based on previous data and present studies structural and lithological controls of base metal mineralization have been recorded and guides for searching new areas and exploration strategy has been suggested.
Based on these data six new areas have been identified for future exploration. The data includes lithological configuration, structural setup and controls of lead-zinc mineralization collected from previous data and present studies. It is suggested that for further exploration in these six areas ground magnetic survey should be carried out to understand magnetic lows and highs to decipher structural discontinuity and faults which could be favourable sites of mineralization. Combination of SP, IP, EM and gravity shall help in distinguishing between base metals from graphite mica schist.
Keywords
Lead, Zinc, Exploration, Geophysics, Rajpura-Dariba, Rajasthan.
- Tectonostratigraphic Status of the Proterozoic Babarmal Pink Marble from the Aravalli Supergroup
Authors
1 Department of Geology, Government College, Sirohi - 307 001, IN
2 Department of Geology, M.L. Sukhadia, University, Udaipur - 313 00, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 79, No 2 (2012), Pagination: 135-150Abstract
Present study reviews the tectono-stratigraphic status of Babarmal pink marble from the Aravalli Supergroup through mapping and petrographic study of marble as well as associated lithologies. The pink marble is predominantly calcitic and characteristically different from dolomitic carbonate rocks of the Jhamarkotra Formation, the Lower Aravalli Group. The marble is devoid of organic matter and phosphate content unlike the Jhamarkotra dolomite. The pink marble is underlain by quartz-pebble rich conglomerate. This assemblage represents a rare lithological association which has not been reported so far from the Aravalli Supergroup.Besides the above differences between the Babarmal pink marble and the Jhamarkotra dolomite we also noted significant similarities between the two with respect to greenschist facies metamorphism and three phases of deformational history. Similarities in both these aspects imply that the pink marble like the Jhamarkotra dolomite can be corroborated with the Aravalli orogenic cycle. While on the basis of distinguishing lithological and petrographic features the pink marble-pebbly conglomerate, the lithoassemblage is suggested to be designated as "Babarmal Formation" as a modification to the Babarmal Formation of Gupta et al. (1997) which constituted of pink marble.
The outcrop patterns on the high resolution map shows that the Babarmal litho-assemblages are sandwiched between the Barytes bearing meta-volcanics (that represent the underlying Delwara Formation) and the dolomite-quartzite-phyllite (that represent the overlying Jhamarkotra Formation) of the Lower Aravalli Group (Roy and Jakhar, 2002). Hence we suggest to place the Babarmal Formation as the middle stratigraphic unit of the Lower Aravalli Group of the Aravalli Supergroup.
Keywords
Tectonics, Stratigraphy, Proterozoic, Pink Marble, Pebbly Conglomerate, Babarmal, Aravalli Supergroup.References
- AHMAD, T., DRAGUSANU, C. and TANAKA, T. (2008) Provenance of Proterozoic Basal Aravalli mafic volcanic rocks from Rajasthan, Northwestern India: Nd isotopes evidence for enriched mantle reservoirs. Precambrian Res., v.162, pp.150-159.
- AVADHICH, P.C., PUROHIT, R., MEHTA P. and BHU, H. (2006) Sulphur isotopic compositions of two proximal Precambrian barite mineralizing terrains from Udaipur district, Rajasthan: implications to genesis and source. Indian Jour. Geochemistry, v.21(2) pp.369-373.
- BANERJEE, D.M. (1971a) Aravallian stromatolites from Udaipur, Rajasthan, India; Jour. Geol. Soc. India, v.12, pp.349-355.
- BANERJEE, D.M. (1971b) Precambrian stromatolitic phosphorites of Udaipur, Rajasthan, India. Geol. Soc. Amer. Bull., v. 82, pp. 2319-2330.
- BIJU-SEKHAR, S., YOKOYAMA, K., PANDIT, M.K., OKUDAIRA, T., YOSHIDA, M. and SANTOSH, M. (2003) Late Paleoproterozoic magmatism in the Delhi Fold Belt, NW India and its implication: evidence from EPMA chemical ages of zircons. Jour. Asian Earth Sci., v.22, pp.189-207.
- CHOUDHARY, A.K., GOPALAN, K. and SASTRY, C.A. (1984) Present status of the Geochronology of the Precambrian rocks of Rajasthan. Tectonophysics, v.105, pp.131-140.
- CHAUHAN, D.S. (1979) Phosphate-bearing stromatolites of the Precambrian phosphorites deposits of Udaipur region, their environmental significance and genesis of phosphorites. Precambrian Res., v.8, pp.95-126.
- CHOUDHURI, R. AND Roy, A.B. (1986) Proterozoic and Cambrian Phosphorites-deposits: Jhamarkotra, Rajasthan, India. In: P.J. Cook and J.H. Shergold (Eds.), Proterozoic and Cambrian Phosphorites. Cambridge University Press, pp.202-219
- DEB, M. and THORPE, R.A. (2004) Geochronological constraints in the Precambrian geology of Rajasthan and their metallogenic implications. In: M. Deb and W.D. Goodfellow (Eds.), Sediment-Hosted Lead-Zinc Sulphide Deposits. Narosa Publishing House, New Delhi, pp.246- 263.
- 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. Geol. Surv. India, Hyderabad.
- 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 Northeast Gujarat. Mem. Geol. Surv. India, v.123, pp.226.
- HERON, A.M. (1953) The Geology of Central Rajputana. Mem. Geol. Surv. India, v.79, pp.389.
- KAUFMAN, A.J. (1997) An Ice age in the tropics. Nature, v.386, pp.227-228.
- MAHESHWARI, A., SIAL, A.N., CHITTORA, V.K. and BHU, H. (2002) A positive δ13C carb anomaly in Palaeoproterozoic carbonates of the Aravalli Craton, Western India: Support for a global isotopic excursion. Jour. Asian Earth Sci., v.21, pp.59-67.
- MEHTA, P. (2009) Lithostratigraphic and tectonic studies with emphasis on barytes mineralization in Babarmal region, district Udaipur, Rajasthan. Unpubd. Ph.D. thesis, M.L. Sukhadia, Univ. Udaipur.
- PUROHIT, R., MEHTA, P., BHU, H. and AVADICH, P.C. (2007) Protracted Carbonate Sedimentation. In: V.K. Singh and Ram Chandra (Eds.), Aravalli Eperic Sea. 2nd International Conference (Feb.24-28, PCGT 2009). Precambrian Continental Growth & Tectonism, IIT, Jhansi.
- PUROHIT, R. and RENGARAJAN, R. (2007) Syn- and Post Depositional Geochemical Alterations. In: Palaeoproterozoic Jhamarkotra Carbonates From Aravalli Supergroup: Implications to Palaeoenvironment. Jour. Appld. Geochemistry v.9(2), pp.256-270
- MOSHER, S. (1981) Pressure solution deformation mechanism in Pennsylvanian conglomerates from Rhode Island: Jour. Geol., v.89, pp.37-55.
- ROY, A.B. and JAKHAR, S.R. (2002) Geology of Rajasthan (Northwest India) Precambrian to Recent. Scientific Publishers (India), Jodhpur, pp.25.
- ROY, A.B. and KRONER, A. (1996) Single zircon evaporation ages constraining the growth of the Archaean Aravalli craton, northwestern Indian Shield. Geol. Magz., v.133(3), pp.333-342.
- ROY, A.B. and PALIWAL, B.S. (1981) Evolution of Lower Proterozoic epicontinental deposits: Stromatolite bearing Aravalli rock of Udaipur, Rajasthan, India. Precambrian. Res., v.14, pp.49-74.
- ROY, A. B. PALIWAL, B.S., SHEKHAWAT, S.S., NAGORI, D.K., GOLANI, P.R. and BEJARNIYA, B.R. (1988) Stratigraphic and tectonic framework of the Aravalli Mountain Range. In: A.B. Roy (Ed.), Precambrian of the Aravalli Mountain, Rajasthan, India. Mem. Geol. Soc. India, v.7, pp.3-31.
- ROY, A.B. (2000) Geology of the Palaeoproterozoic Aravalli Supergroup of Rajasthan and northern Gujarat. In: M. Deb (Ed.), Crustal evolution and metallogeny in the northwestern Indian shield, (A festschrift for A. Mookherjee). Narosa Publishing House, New Delhi, pp. 87-114.
- ROY, A.B., SHARMA, B.L., PALIWAL, B.S., CHAUHAN, N.K., NAGORI, D.K., GOLANI, P.R., BEJARNIYA, B.R., BHU, H. and SABAH, M. ALI (1993) Lithostratigraphy and tectonic evolution of the Aravalli Supergroup - A protogeosynclinal sequence. In: S.M. Kassyap (Ed.), Rift basins and aulacogens, Gyanodaya Prakashan, Nainital. pp.73-90.
- SARANGI, S., GOPALAN, K., ROY, A. B., SREENIVAS, B. and DAS SHARMA, S. (2006) Pb-Pb age of carbonates of Jhamarkotra Formation: constraints on the age of Aravalli Supergroup, Rajasthan. Jour. Geol. Soc. India, v.67, pp.442-446.
- WIEDENBECK, M., GOSWAMI, J.N. and ROY, A.B. (1996) Stabilization of the Aravalli craton of the north-western India at 2.5 Ga: An ion-microprobe zircon study. Chemical Geol., v.129, pp.325-340.