Volume 28, Issue 3 (10-2020)                   www.ijcm.ir 2020, 28(3): 711-722 | Back to browse issues page


XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Mohammadi Pour, Malekzadeh Shafaroudi, Javidi Moghaddam. Evidence of hydrothermal barite in Mashkan area, northeastern Sabzevar: mineralogy, geochemistry, and fluid inclusion. www.ijcm.ir 2020; 28 (3) :711-722
URL: http://ijcm.ir/article-1-1524-en.html
Abstract:   (1596 Views)
Mashkan barite prospect area is located in the northeastern Sabzevar, Khorasan Razavi Province. Geology of the area includes sedimentary rocks of conglomerate, sandstone, limestone with interbeds of shale and shale with interbeds of sandstone and Eocene volcanic units of andesite and trachyandesite. Barite with open space filling, massive, radial, and planar textures occurs as vein-type with mostly northwest-southeast trend. Mineralogy of deposit includes barite, quartz, and calcite and secondary minerals are malachite, azurite, goethite and hematite. The vein mineralization was formed in two stages, including: 1. main stage (barite+quartz) and 2. late stage (calcite). Fluid inclusions in the quartz and barite samples are anhedral to subhedral forms (conical and rod) with a size of about 4 to 12 microns. Maximum  geochemical anomalies in veins are 394 ppm Zn, 52 ppm Sb, and 90 Pb ppm. Based on fluid inclusion studies of quartz and barite samples of the main stage, minimum formation temperature of mineralization is about 181 to 370ºC and with salinity of 6.5 to 13.6 NaCl wt. % equivalent. Based on evidence such as structural control (fault) of mineralization, geology, mineralogy, geochemistry, and fluid inclusion, veins are hydrothermal type. Temperature decreasing and mixing with high salinity fluid during the evolution of hydrothermal fluids are effective during the formation of vein.
Full-Text [PDF 5442 kb]   (442 Downloads)    
Type of Study: Research | Subject: Special

References
1. [1] Ghorbani M., "The economic geology of Iran: mineral deposits and natural resources", Springer, New York (2013). [DOI:10.1007/978-94-007-5625-0]
2. [2] USGS., "Barite (Advance Release)", US Geol Surv Miner Yearb-2009 (2011).
3. [3] Alavi M., "Sedimentary and structural characteristics of the Paleo-Tethys remnants in northeastern Iran", Geological Society of American Bullitan 103 (1991) 983-992. https://doi.org/10.1130/0016-7606(1991)103<0983:SASCOT>2.3.CO;2 [DOI:10.1130/0016-7606(1991)1032.3.CO;2]
4. [4] Karimpur M.H., Malekzadeh Shafaroudi A., Esfandiarpour A., Mohammadnejad H., "Nyshabour Turquoise mine: The first Cu-Au-ULREE IOCG type in Iran (in Persian)", Iranian Journal of Economic Geology 3 (2012) 193-216.
5. [5] Gholami S., "Geology, mineralization, geochemistry, and magnetometry of Shotor Sang iron deposit, NE Sabzevar", Ms.C thesis, Ferdowsi University of Mashhad, Mashhad (2009) 240p.
6. [6] Panahi M., "Geology, petrography, alteration and geochemistry in eastern part of Hamdi kaolin of Halak Abad (southwestern Sabzevar) with view of copper porphyry exploration, and study of mineralization, geochemistry and magnetometry in eastern of Abozar iron mine, Neyshabour (northeastern of Sabzevar)", Ms.C thesis, Ferdowsi University of Mashhad, Mashhad (2009) 411p.
7. [7] Fatehi H., "Geology, mineralization, and geochemistry of Jalambadan prospect area, NW Sabzevar", Ms.C thesis, Ferdowsi University of Mashhad, Mashhad (2013) 240p.
8. [8] Zaree A., Malekzadeh Shafaroudi A., Karimpour M.H., "Khanlogh magnetite-apetite deposit, NW Neyshabour: Mineralogy, structure and texture, alteration, and determination of model (in Persian)", Iranaian Journal of Crystallography and Mineralogy 1 (24) (2016) 131-144.
9. [9] Amini B., "Geological map of Mashkan", Scale 1:100,000. Geological Survey of Iran, (2006).
10. [10] Yazarlo M.A., "Report of the end of Operation Barite Meshkan", (2014) 111p.
11. [11] Steele-MacInnis M., Lecumberri-Sanchez P., Bodnar R.J., "HOKIEFLINCS-H2O-NACL: A Microsoft Excel spreadsheet for interpreting microthermometric data from fluid inclusions based on the PVTX properties of H2O-NaCl", Computer in Geosciences 49 (2012) 334-337. [DOI:10.1016/j.cageo.2012.01.022]
12. [12] Rutherford M. J., Devine, A. D., "Magmatic conditions and magma ascent as indicated by Hornblende phase equilibria and reaction in the 1995-2002, Soufriere Hills Magma", Petrology 44 (2003) 1433-1484. [DOI:10.1093/petrology/44.8.1433]
13. [13] Pearce T. H., Russell J. K., Wolfson I.,"Laser-interference and normarski interference imaging of zoning profiles in plagioclase phenocrysts from the May 18, 1980, eruption of Mount St. Helens, Washington", American Mineralogist 72 (1987) 1131-1143.
14. [14] Whitney D.L., Evans B.W., "Abbreviations for names of rock-forming minerals", American Mineralogist 95 (2010) 185-187. [DOI:10.2138/am.2010.3371]
15. [15] Seward T.M., Barnes H.L., "Metal transport by hydrothermal ore fluids", Geochemistry of hydrothermal ore deposits 3 (1997) 435-486.
16. [16] Barnes H. L., "Geochemistry of hydrothermal ore deposits", Third edition, New York, John Wiley and Sons, (1997) 797pp.
17. [17] Lottermoser B.G., Ashley P.M., "Geochemistry and exploration significance of ironstones and bar‌ite-rich rocks in the Proterozoic Willyama Super‌group, Olary Block, South Australia", Journal of Geo‌chemical Exploration 57 (1996) 57-73. [DOI:10.1016/S0375-6742(96)00016-7]
18. [18] Roedder E., "Fluid Inclusions", In: Ribbe PE (ed) Reviews in Mineralogy, 12, Mineral Soci Am, Washington DC, (1984) 1-644. [DOI:10.1515/9781501508271]
19. [19] Shephered T. J., Rankin A. H., Alderton D. H. M., "A practical guide to fluid inclusion studies", Blackie, London (1985).
20. [20] Lecumberri-Sanchez P., Steel-MacInnis, M., Bodnar, R.J., "A numerical model to estimate trapping conditions of fluid inclusions that homogenize by halite disappearance", Geochimica et Cosmochimica Acta 92 (2012) 14-22. [DOI:10.1016/j.gca.2012.05.044]
21. [21] Herzig P.M., Hannington M.D., Fouquet Y., von Stackelberg U., Petersen S., "Goldrich polymetallic sulfides from the Lau back arc and implications for the geochemistry of gold in sea-floor hydrothermal systems of the Southwest Pacific", Econ Geol 88 (1993), 2182-2209. [DOI:10.2113/gsecongeo.88.8.2182]
22. [22] de Ronde C.E.J., Faure K., Bray C.J., Chappell D.A., Wright I.C., "Hydrothermal fluids associated with seafloor mineralization at two southern Kermadec arc volcanoes, offshore New Zealand", Miner Deposita 38 (2003), 217-233. [DOI:10.1007/s00126-002-0305-4]
23. [23] Petersen, S., Herzig, P.M., Schwarz-Schampera, U., Hannington, M.D., Jonasson, I.R., Hydrothermal precipitates associated with bimodal volcanism in the Central Bransfield Strait, Antarctica", Miner Deposita 39 (2004), 358-379. [DOI:10.1007/s00126-004-0414-3]
24. [24] Bischoff, J.L., Rosenbauer, R.J., "The critical point and two-phase boundary of seawater, 200-500 °C", Earth Planet Sci Lett 68 (1984), 172-180. [DOI:10.1016/0012-821X(84)90149-3]
25. [25] Bean, R.E., "The magmatic-meteoric transition", Geothermal Resources Council, Special Report 13 (1983), 245-225.

Add your comments about this article : Your username or Email:
CAPTCHA

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

© 2024 CC BY-NC 4.0 | Iranian Journal of Crystallography and Mineralogy

Designed & Developed by : Yektaweb