Structural Controls on Gold Mineralisation in Nagavi Area, Gadag Schist Belt, Karnataka, India

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Authors

  • Chandrashekharappa Agasnalli
     Department of Civil Engineering, BMS Institute of Technology and Management, Yelahanka, Bangalore - 560064, Karnataka ,IN
  • Jayanthi Ramalingam
     Civil Engineering, College of Engineering and Technology, Wollega University ,ET
  • T. K. Lakkundi
     Department of Geology, School of Earth Sciences, Central University of Karnataka, Kalaburagi - 585367 Karnataka ,IN
  • M. S. Deepak
     Department of Civil Engineering, BMS Institute of Technology and Management, Yelahanka, Bangalore - 560064, Karnataka ,IN

DOI:

https://doi.org/10.18311/jmmf/2022/31427

Keywords:

Auriferous Shear Zones, Faults, Folds, Geological Structures, Gold Mineralisation

Abstract

Minerals and metals play a very important role in the country’s economic growth and as well as construction industries. Minerals also support automobile industries as they are required to manufacture steel and other products using various minerals. So, minerals and mining industries are the backbones of any country’s Gross Domestic Product (GDP). In the study area, Banded Iron Formation (BIF) hosted auriferous sheared zones which are indicating very good gold and associated mineralisation. In the study area, different litho units occur like metabasalt, schist, shale and pyritiferous metabasalt. Banded Iron Formations (BIFs) are dominating in the study area along with quartz vein, Banded Fe-Mn Chert and BIFs float. Different rock chip samples show encouraging gold mineralisation zones. Auriferous shear zones on top of the hilltop in the reef. In the study area, Petrography and mineralogy have played a vital role in gold and associated mineralisation in the Nagavi area. Gold is closely associated with sulphides, mainly pyrite and pyrrhotite, and to a lesser extent, with bismuth tellurides and carbonate minerals. The gold content range in BIF’s of the Nagavi area is from < 20 to <27 ppb. In the study area, geological structures like dips, strike, faults, folds, joints and unconformities support gold mineralisation. Majorly these structures control the gold and associated minerals.

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Published

2023-04-04

How to Cite

Agasnalli, C., Ramalingam, J., T. K. Lakkundi, & M. S. Deepak. (2023). Structural Controls on Gold Mineralisation in Nagavi Area, Gadag Schist Belt, Karnataka, India. Journal of Mines, Metals and Fuels, 70(11), 590–601. https://doi.org/10.18311/jmmf/2022/31427

Issue

Volume 70, Issue 11, November 2022

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Articles

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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Received 2022-10-11
Accepted 2023-04-04
Published 2023-04-04

 

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