Geophysical Exploration of Dolomite and Baryte Deposits in the Gunjeda Formation, Pakhal Supergroup, Telangana

Dr. G. Udaya Laxmi , Dr. Linga Swamy Jogu , Dr. D. Vidyasagarachary

Pakhal Supergroup, Dolomite Mineralization, Baryte Deposits, Magnetic Anomaly, and Geophysical Exploration

This study presents an integrated geological and geophysical investigation for dolomite and baryte mineralization in Pocharam area, Garla mandal, Mahabubabad District, Telangana, located within the Proterozoic Pakhal Supergroup. The region comprises predominantly dolomite, quartzite, and shale formations of the Gunjeda Formation within the Mallampalli Subgroup. Field observations confirm the presence of stratabound baryte occurring as lenses and pockets interbedded within cherty dolomite, with widths ranging from 0.5 to 2.0 meters and trending NW–SE to N–S. Ground magnetic surveys using a Precision Proton Magnetometer (PPM) were conducted over seven profiles, and Total Magnetic Intensity (TMI) maps revealed strong magnetic highs in the northern area, attributed to quartzite and iron-rich shales, and magnetic lows in the southern and southwestern areas, correlating with dolomite and baryte-rich lithologies. Depth estimation through Radially Averaged Power Spectrum (RAPS) analysis indicated that the target mineralized zones occur within the upper 50 meters, while deeper anomalies likely represent the Archaean basement. Borehole data confirmed the continuity of dolomite, though baryte was found to be spatially localized. The results validate that magnetic geophysical methods effectively delineate lithological boundaries and support the identification of low-magnetic, mineral-rich zones. This study highlights the utility of integrating geological mapping with magnetic anomaly analysis for efficient targeting of non-metallic mineral deposits in Proterozoic terrains like the Pakhal basin.

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"Geophysical Exploration of Dolomite and Baryte Deposits in the Gunjeda Formation, Pakhal Supergroup, Telangana", IJSDR - International Journal of Scientific Development and Research (www.IJSDR.org), ISSN:2455-2631, Vol.10, Issue 7, page no.b255-b266, July-2025, Available :https://ijsdr.org/papers/IJSDR2507131.pdf

Volume 10 Issue 7, July-2025

Pages : b255-b266

Paper Reg. ID: IJSDR_304185

Published Paper Id: IJSDR2507131

Downloads: 000451

Research Area: Science All

Country: Hyderabad, Telangana, India

Published Paper PDF: https://ijsdr.org/papers/IJSDR2507131

Published Paper URL: https://ijsdr.org/viewpaperforall?paper=IJSDR2507131

DOI: https://doi.org/10.56975/ijsdr.v10i7.304185

ISSN: 2455-2631 | IMPACT FACTOR: 9.15 Calculated By Google Scholar | ESTD YEAR: 2016

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 9.15 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Publisher: IJSDR(IJ Publication) Janvi Wave

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