Fluid inclusion and mineralogical study of vein-type apatite ores in shear zones from the Singhbhum metallogenetic province, West Bengal, India
Yevgeny Vapnik, Sergey Bushmin, Aparup Chattopadhyay, Dmitry Dolivo-Dobrovolsky
Apatite ores were sampled from the Beldih-Kutni and Jhalda shear zones of the Purulia District, in the northern part of the Singhbhum copper-uranium belt, India. These apatite-magnetite ores of Kiruna-type sensu lato are of hydrothermal origin as evidenced by their mode of occurrences and mineral composition. The apatite ores contain both sulfide and niobite-tantalite mineralization. Geological and mineralogical data indicate that the process of apatite ore formation can be divided into several stages. The earliest stage is sodium metasomatism of the host rock, which is reflected in the appearance of albite, alkali amphibole and alkali pyroxene. The second stage is carbonatization with the development of calcite, dolomite, and apatite. During progressive carbonatization, the apatite content increases and apatite-rich ores are formed in the central part of hydrothermal flow. Initially, this is a grey apatite ore, but as the process of silicification and ferrugination proceeds, the apatite-quartz and then magnetite-quartz-apatite ores containing rare-metal mineralization were formed. The process was completed with the injection of quartz veins. Fluid inclusion data indicate that the two major components of the fluid during ore precipitation were an aqueous fluid with salinity between 40 and 25 wt.% NaCl equiv., and a CO2 ± CH4 fluid with a mole fraction of CH4 up to 0.2. The two fluid systems are contemporaneous and likely formed as a result of the fluid immiscibility. The conditions of the succession of apatite ore formation determined on the basis of fluid inclusion densities are 150 < T < 350 °C, 0.1 < P < 3.0 kbar.
Ore Geology Reviews
https://doi.org/10.1016/j.oregeorev.2006.11.002
Apatite-magnetite ore
Fluid inclusions
Shear zones
Singhbhum
10.1016/j.oregeorev.2006.11.002
Dive into the research topics of 'Fluid inclusion and mineralogical study of vein-type apatite ores in shear zones from the Singhbhum metallogenetic province, West Bengal, India'. Together they form a unique fingerprint.
Apatite Chemical Compounds 100%
fluid inclusion Earth & Environmental Sciences 94%
shear zone Earth & Environmental Sciences 90%
apatite Earth & Environmental Sciences 90%
Shear Chemical Compounds 86%
ore Earth & Environmental Sciences 69%
province Earth & Environmental Sciences 59%
fluid Earth & Environmental Sciences 24%
Vapnik, Y., Bushmin, S., Chattopadhyay, A., & Dolivo-Dobrovolsky, D. (2007). Fluid inclusion and mineralogical study of vein-type apatite ores in shear zones from the Singhbhum metallogenetic province, West Bengal, India. Ore Geology Reviews, 32(1-2), 412-430. https://doi.org/10.1016/j.oregeorev.2006.11.002
Vapnik, Yevgeny ; Bushmin, Sergey ; Chattopadhyay, Aparup ; Dolivo-Dobrovolsky, Dmitry. / Fluid inclusion and mineralogical study of vein-type apatite ores in shear zones from the Singhbhum metallogenetic province, West Bengal, India. In: Ore Geology Reviews. 2007 ; Vol. 32, No. 1-2. pp. 412-430.
@article{ecfcd62db61a4902a4ab4da39b83ea2a,
title = "Fluid inclusion and mineralogical study of vein-type apatite ores in shear zones from the Singhbhum metallogenetic province, West Bengal, India",
abstract = "Apatite ores were sampled from the Beldih-Kutni and Jhalda shear zones of the Purulia District, in the northern part of the Singhbhum copper-uranium belt, India. These apatite-magnetite ores of Kiruna-type sensu lato are of hydrothermal origin as evidenced by their mode of occurrences and mineral composition. The apatite ores contain both sulfide and niobite-tantalite mineralization. Geological and mineralogical data indicate that the process of apatite ore formation can be divided into several stages. The earliest stage is sodium metasomatism of the host rock, which is reflected in the appearance of albite, alkali amphibole and alkali pyroxene. The second stage is carbonatization with the development of calcite, dolomite, and apatite. During progressive carbonatization, the apatite content increases and apatite-rich ores are formed in the central part of hydrothermal flow. Initially, this is a grey apatite ore, but as the process of silicification and ferrugination proceeds, the apatite-quartz and then magnetite-quartz-apatite ores containing rare-metal mineralization were formed. The process was completed with the injection of quartz veins. Fluid inclusion data indicate that the two major components of the fluid during ore precipitation were an aqueous fluid with salinity between 40 and 25 wt.% NaCl equiv., and a CO2 ± CH4 fluid with a mole fraction of CH4 up to 0.2. The two fluid systems are contemporaneous and likely formed as a result of the fluid immiscibility. The conditions of the succession of apatite ore formation determined on the basis of fluid inclusion densities are 150 < T < 350 °C, 0.1 < P < 3.0 kbar.",
keywords = "Apatite-magnetite ore, Fluid inclusions, India, Mineralogy, Shear zones, Singhbhum",
author = "Yevgeny Vapnik and Sergey Bushmin and Aparup Chattopadhyay and Dmitry Dolivo-Dobrovolsky",
doi = "10.1016/j.oregeorev.2006.11.002",
journal = "Ore Geology Reviews",
Vapnik, Y, Bushmin, S, Chattopadhyay, A & Dolivo-Dobrovolsky, D 2007, 'Fluid inclusion and mineralogical study of vein-type apatite ores in shear zones from the Singhbhum metallogenetic province, West Bengal, India', Ore Geology Reviews, vol. 32, no. 1-2, pp. 412-430. https://doi.org/10.1016/j.oregeorev.2006.11.002
Fluid inclusion and mineralogical study of vein-type apatite ores in shear zones from the Singhbhum metallogenetic province, West Bengal, India. / Vapnik, Yevgeny; Bushmin, Sergey; Chattopadhyay, Aparup; Dolivo-Dobrovolsky, Dmitry.
In: Ore Geology Reviews, Vol. 32, No. 1-2, 01.09.2007, p. 412-430.
T1 - Fluid inclusion and mineralogical study of vein-type apatite ores in shear zones from the Singhbhum metallogenetic province, West Bengal, India
AU - Vapnik, Yevgeny
AU - Bushmin, Sergey
AU - Chattopadhyay, Aparup
AU - Dolivo-Dobrovolsky, Dmitry
N2 - Apatite ores were sampled from the Beldih-Kutni and Jhalda shear zones of the Purulia District, in the northern part of the Singhbhum copper-uranium belt, India. These apatite-magnetite ores of Kiruna-type sensu lato are of hydrothermal origin as evidenced by their mode of occurrences and mineral composition. The apatite ores contain both sulfide and niobite-tantalite mineralization. Geological and mineralogical data indicate that the process of apatite ore formation can be divided into several stages. The earliest stage is sodium metasomatism of the host rock, which is reflected in the appearance of albite, alkali amphibole and alkali pyroxene. The second stage is carbonatization with the development of calcite, dolomite, and apatite. During progressive carbonatization, the apatite content increases and apatite-rich ores are formed in the central part of hydrothermal flow. Initially, this is a grey apatite ore, but as the process of silicification and ferrugination proceeds, the apatite-quartz and then magnetite-quartz-apatite ores containing rare-metal mineralization were formed. The process was completed with the injection of quartz veins. Fluid inclusion data indicate that the two major components of the fluid during ore precipitation were an aqueous fluid with salinity between 40 and 25 wt.% NaCl equiv., and a CO2 ± CH4 fluid with a mole fraction of CH4 up to 0.2. The two fluid systems are contemporaneous and likely formed as a result of the fluid immiscibility. The conditions of the succession of apatite ore formation determined on the basis of fluid inclusion densities are 150 < T < 350 °C, 0.1 < P < 3.0 kbar.
AB - Apatite ores were sampled from the Beldih-Kutni and Jhalda shear zones of the Purulia District, in the northern part of the Singhbhum copper-uranium belt, India. These apatite-magnetite ores of Kiruna-type sensu lato are of hydrothermal origin as evidenced by their mode of occurrences and mineral composition. The apatite ores contain both sulfide and niobite-tantalite mineralization. Geological and mineralogical data indicate that the process of apatite ore formation can be divided into several stages. The earliest stage is sodium metasomatism of the host rock, which is reflected in the appearance of albite, alkali amphibole and alkali pyroxene. The second stage is carbonatization with the development of calcite, dolomite, and apatite. During progressive carbonatization, the apatite content increases and apatite-rich ores are formed in the central part of hydrothermal flow. Initially, this is a grey apatite ore, but as the process of silicification and ferrugination proceeds, the apatite-quartz and then magnetite-quartz-apatite ores containing rare-metal mineralization were formed. The process was completed with the injection of quartz veins. Fluid inclusion data indicate that the two major components of the fluid during ore precipitation were an aqueous fluid with salinity between 40 and 25 wt.% NaCl equiv., and a CO2 ± CH4 fluid with a mole fraction of CH4 up to 0.2. The two fluid systems are contemporaneous and likely formed as a result of the fluid immiscibility. The conditions of the succession of apatite ore formation determined on the basis of fluid inclusion densities are 150 < T < 350 °C, 0.1 < P < 3.0 kbar.
KW - Apatite-magnetite ore
KW - Fluid inclusions
KW - India
KW - Mineralogy
KW - Shear zones
KW - Singhbhum
U2 - 10.1016/j.oregeorev.2006.11.002
DO - 10.1016/j.oregeorev.2006.11.002
JO - Ore Geology Reviews
JF - Ore Geology Reviews
Vapnik Y, Bushmin S, Chattopadhyay A, Dolivo-Dobrovolsky D. Fluid inclusion and mineralogical study of vein-type apatite ores in shear zones from the Singhbhum metallogenetic province, West Bengal, India. Ore Geology Reviews. 2007 Sep 1;32(1-2):412-430. https://doi.org/10.1016/j.oregeorev.2006.11.002