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Tungsten mineralized Neoproterozoic Degana Peraluminous Granite around Rewat Hill, Rajasthan, NW India: Implications from sub-surface data and geochemistry

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Abstract

The present study emphasises occurrence, mineral assemblages and mineral chemistry of the Neoproterozoic Degana Peraluminous Granite (DPG) around Rewat Hill and its fertility. Based on field evidences and nature of occurrences of wolframite, the tungsten mineralization of the Rewat Hill has been classified into five types; Type-I: quartz–wolframite vein, Type-II: quartz–muscovite–wolframite–polymetallic sulphide vein, Type-III: DPG hosted wolframite, Type-IV: stock-works hosted wolframite in phyllite and Type-V: gravel bed hosted wolframite. Tungsten mineralization in DPG was established in the exposed part by various workers but extension of fertile DPG and its potentiality for tungsten and associated mineralization in the soil-covered area around Rewat Hill remained unexplored. In this study, sub-surface exploration through vertical and inclined boreholes studies has been established which suggest a possible extension of fertile DPG, i.e., Type-I and Type-III tungsten mineralization in soil cover. Tungsten concentration in fertile DPG under soil cover ranges between 402.98 and 5025.45 ppm with higher LREE (58.36–288.67 ppm) and relatively lower HREE (14.64–92.48 ppm). Sub-surface data and geochemistry reveal that soil covered northern and northwestern parts around Rewat Hill of the Degana area is the future potential for tungsten mineralization.

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Acknowledgements

The authors are grateful to the Addl. Director General and HoD, GSI, WR for all logistics support and Dy. Director General and RMH-II for all the technical supports in carrying out this work. We convey our thanks to the anonymous reviewer of GSI for suggestions for the improvement of manuscript. The anonymous journal reviewers are sincerely thanked for their insightful suggestions.

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  1. Geological Survey of India, Western Region, Jaipur, India

    Suresh Kumar & Suresh Chander

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  1. Suresh Kumar
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  2. Suresh Chander
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Suresh Kumar: Writing original draft, conceptualization, methodology, investigation, writing-review and editing. Suresh Chander: Supervision.

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Correspondence to Suresh Kumar.

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Communicated by Rajneesh Bhutani

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Kumar, S., Chander, S. Tungsten mineralized Neoproterozoic Degana Peraluminous Granite around Rewat Hill, Rajasthan, NW India: Implications from sub-surface data and geochemistry. J Earth Syst Sci 130, 131 (2021). https://doi.org/10.1007/s12040-021-01605-2

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  • DOI: https://doi.org/10.1007/s12040-021-01605-2

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