Degana (Rajasthan, India) and Tigrinoe (Primorye, Russia) tungsten and tin-tungsten deposits: Composition of mineral-forming fluids and conditions of wolframite deposition

Krylova, T. L.; Pandian, M. S.; Бортников, Н. С.; S, Vijay Anand; Gorelikova, N. V.; Гоневчук, В. Г.; Korostelev, P. G.

doi:10.1134/s1075701512040046

Cited by 13 publications

(2 citation statements)

References 24 publications

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“…The close association of CO 2 -rich inclusions and H 2 O-rich inclusions in groups and along the same trail also suggests fluid immiscibility. It is interpreted that fluids of type I and type II inclusions co-existed during mineralization and type III inclusions indicate increasing salinity of hydrothermal fluid as a result of fluidrock interaction leading to greisenisation (Vijay Anand et al 2010;Krylova et al 2012), which also contributed to ore mineralization. According to Pearson's hard soft acid base (HSAB) principle, tungsten which occurs as WO 2− Figure 11.…”

Section: Hydrothermal Process Of Mineralizationmentioning

confidence: 99%

Fluid inclusion, geochemical, Rb–Sr and Sm–Nd isotope studies on tungsten mineralized Degana and Balda granites of the Aravalli craton, NW India

et al. 2018

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Granitic plutons occurring within and to the west of the Delhi Fold Belt in the Aravalli craton, northwestern India are the result of widespread felsic magmatism during Neoproterozoic, some of which are associated with greisen and skarn tungsten deposits. In this paper, we present the result of our study on fluid inclusions, geochemistry and geochronology of two such tungsten mineralized granite plutons at Degana and Balda, and interpret the nature of ore fluid, and petrogenesis and age of these mineralized granites. Fluid inclusion study reveals coexistence of moderate and hyper-saline aqueous fluid inclusions along with aqueous-carbonic inclusions, suggesting their origin due to liquid immiscibility during fluid-rock interaction. Geochemically, the granites are peraluminous, Rb enriched, Sr and Ba depleted and highly differentiated. The Rb-Sr isotopic systematics yielded 795 ± 11 Ma for Balda granite and 827 ± 8 Ma for Degana granite. We show that major phase of widespread granitoid magmatism and mineralization during the Neoproterozoic (840-790 Ma) in NW India is coeval with breakup of the Rodinia supercontinent and infer a causal relationship between them.

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Section: Hydrothermal Process Of Mineralizationmentioning

confidence: 99%

Fluid inclusion, geochemical, Rb–Sr and Sm–Nd isotope studies on tungsten mineralized Degana and Balda granites of the Aravalli craton, NW India

et al. 2018

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“…Based on the analysis of single-fluid inclusions in both wolframite and coexisting quartz, Korges et al (2018) [15] proposed that fluid boiling triggered by decompression plays a key role in the precipitation of wolframite. Thermodynamic simulation studies show that the escape of acid gaseous components caused by fluid boiling/immiscibility will lead to the increasing of fluid pH, thus reducing the solubility of wolframite and causing wolframite precipitation [10,107,144,151]. Recently, Pan et al (2019) [17] dissected the multi-stage fluid evolution process of the Yaogangxian W deposit in the Nanling region, and found that the ore-forming fluid of later-stage wolframite is mainly characterized by the significant loss of CO 2 , CH 4 , B, As and S. It is therefore proposed that the loss of acidic gases caused by fluid immiscibility is accompanied by a certain stage of wolframite precipitation in the Yaogangxian tungsten deposit.…”

Section: Wolframite Precipitation Mechanismmentioning

confidence: 99%

Fluid Processes of Wolframite-Quartz Vein Systems: Progresses and Challenges

Pan

et al. 2022

Minerals

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Wolframite-quartz vein-type tungsten deposits constitute the world’s major tungsten resources and are integral to tungsten production. A major share of this mineralization product is found in Southeast China, with other significant resources in the Central Andean belt, the East Australian belt, the Karagwe-Ankole belt and the European Variscan belt. In the past few decades, extensive studies on wolframite-quartz vein-type tungsten deposits have been conducted, but many key questions concerning their ore-forming fluid and metallogenic mechanism remain unclear. Additionally, a summary work on the global distribution and fluid characteristics of these wolframite-quartz vein-type tungsten deposits is still lacking. In this contribution, recent progress regarding several major issues related to the fluid processes involved in the forming of these veins are overviewed, and challenges in terms of future research are proposed. These issues include the nature of ore-forming fluids, their sources, and their transportation and wolframite deposition mechanisms. In particular, the affinity between veins and the exposed granitic intrusion from the Zhangtiantang-Xihuashan ore district, where an as-yet undiscovered deep intrusion, rather than the exposed granitic intrusion, was probably responsible for the formation of the wolframite-quartz veins, is reevaluated. This study also reviews the existing fluid and melt inclusion data from several tungsten deposits to address whether the mineralization potential of the magmatic-hydrothermal systems was directly correlated with the metal contents in the granitic melts and the exsolving fluids.

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

Kumar

Chander

2021

J Earth Syst Sci

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Degana (Rajasthan, India) and Tigrinoe (Primorye, Russia) tungsten and tin-tungsten deposits: Composition of mineral-forming fluids and conditions of wolframite deposition

Cited by 13 publications

References 24 publications

Fluid inclusion, geochemical, Rb–Sr and Sm–Nd isotope studies on tungsten mineralized Degana and Balda granites of the Aravalli craton, NW India

Fluid inclusion, geochemical, Rb–Sr and Sm–Nd isotope studies on tungsten mineralized Degana and Balda granites of the Aravalli craton, NW India

Fluid Processes of Wolframite-Quartz Vein Systems: Progresses and Challenges

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

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