Volume 25, Issue 4 (1-2018)                   www.ijcm.ir 2018, 25(4): 727-738 | Back to browse issues page

DOI: 10.29252/ijcm.25.4.727

XML Persian Abstract Print

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

Fatahi S, Calagari A, Abedini A, tabatabaii S H. Mineralogy and geochemistry of ignimbrite-related bentonitic clay in Tashtab, southwest of Khur and Biabanak, Isfehan Province . www.ijcm.ir. 2018; 25 (4) :727-738
URL: http://ijcm.ir/article-1-991-en.html

University of Tabriz
Abstract:   (152 Views)
The Tashtab bentonitic clay deposit is located about 25 km southwest of Khur and Biabanak, Isfehan Province. This deposit is a product of alteration of ignimbrites with the age of early Eocene. Mineralogical examinations demonstrated that montmorillonite, saponite, quartz, nontronite, beidellite, microcline, anorthite, illite, albite, and calcite are the major mineral phases which are accompanied by lesser amounts of minerals such as vermiculite, sanidine, chlorite, orthoclase, actinolite, and dolomite in this deposit. Further investigations revealed that the studied samples are classified as dioctahedral smectites group and their mineralogical composition lies within the range of beidellite-montmorillonite-nontronite. Based upon geochemical studies, the processes of conversion of ignimbrite into bentonitic clays have been accompanied by enrichment of Mg; leaching-fixation of Si, Ca, Mn, Cr, Ba, Co, Cs, Rb, Ta, U, Zn, Cu, and Ni; and depletion of Al, Fe, K, Ti, P, Na, Hf, Nb, Sr, Th, V, Zr, Y, and RREs. Considering the obtained results, it seems that the development of the bentonitic clay deposit at Tashtab was controlled by structural processes. Discrepancy in the rate of alteration intensity of the source materials, chemistry of altering solutions, adsorption, incorporation in crystal lattice, to complex-forming ligands, and difference in the stability scale of primary minerals against alteration are the six key factors controlling the mobilization, distribution, and concentration of elements in the bentonitic clay deposit of the Tashtab area.
Full-Text [PDF 134 kb]   (44 Downloads)    
Type of Study: Research | Subject: Special
Received: 2017/11/25 | Accepted: 2017/11/25 | Published: 2017/11/25

1. [1] Calagari A. A., Abedini A., Fatahi S., "Mineralogical and geochemical of the Sangab bentonite deposit, Isfahan province, Iran", Neues Jahrbuch für Geologie und Paläontologie, Abhandlugen 277 (2015) 125-139. [DOI:10.1127/njgpa/2015/0504]
2. [2] ملک محمودی ف.، خلیلی م.، مکی زاده م.، "مطالعات کانی شناسی و ژئوشیمیایی دگرسانی گرمابی و کانی‌زایی در کوه تشتاب خور (شمال شرق استان اصفهان)"، پایان نامه کارشناسی ارشد، دانشگاه اصفهان، (1389) 108ص.
3. [3] نظری م.، "کانی‌شناسی و ژنز آگات‌‌ها و ژئودهای شرق خور و رابطه آنها با تشکیل بنتونیت‌ها"، دومین همایش انجمن زمین شناسی ایران، (1374) ص 487-485.
4. [4] نوروزی ج.، اسدی ه. و طباطبایی م.، "بررسی آلتراسیون های سنگ های آذرین منطقه خور و بیابانک در ارتباط با پتانسیل یابی معدن بنتونیت با استفاده از داده های ماهواره ای ETM+ و پی جویی صحرایی"، پایان نامه کارشناسی، (1386) 63 ص.
5. [5] Hints R., Kirsimäe K., Somelar P., Kallaste T., Kiipli T., "Multiphase Silurian bentonites in the Baltic Palaeobasin", Sedimentary Geology 209 (2008) 69-79. [DOI:10.1016/j.sedgeo.2008.06.009]
6. [6] Savage D., Walker C., Arthur R., Rochelled C., Odae C., Takase H., "Alteration of bentonite by hyperalkaline: A review of the role of secondary minerals", Physics and Chemistry of the Earth 32 (2007) 287-297. [DOI:10.1016/j.pce.2005.08.048]
7. [7] مهروری ر.، نقره ئیان م.، مکی زاده م.، پورنقشبند ع.، "بررسی کانی‌شناسی و ژئوشیمیایی کانسار بنتونیت مهرآباد (شرق اصفهان)"، مجله بلورشناسی و کانی شناسی ایران، سال نوزدهم، شماره 1 (1390) ص 3-14.
8. [8] فتاحی ش.، کلاگری ع ا.، عابدینی ع.، باقری ه.، "کانی شناسی و زمین شیمی ذخیره بنتونیت تمینان، جنوب باختر نایین، استان اصفهان"، مجله بلورشناسی و کانی شناسی ایران، سال بیست و سوم، شماره 3 (1394) ص 391-402.
9. [9] Ghasemi A., Talbot C. J., "A new tectonic scenario for the Sanandaj- Sirjan zone (Iran)", Journal of Asian Earth Sciences 26 (2006) 683-693. [DOI:10.1016/j.jseaes.2005.01.003]
10. [10] Technoexport Company., "Geology of the Khur. Geological Survey of Iran", 1:100000 Series (1984) Sheet 70058.
11. [11] Kretz R., "Symbols for rock-forming minerals", American Mineralogists 68 (1983) 277-279.
12. [12] Christidis G.E., " Validity of the structural formula method for layer charge determination of smectite: Are-evalution of published data", Applied Clay Science 42 (2008) 1-7. [DOI:10.1016/j.clay.2008.02.002]
13. [13] Weaver C. E., Pollard L. D., "The Chemistry of Clay Minerals. Elsevier", Amsterdam, (1973) 213p.
14. [14] Guven N., " Smectite in hydrous Phyllosilicates: Reviews in mineralogy", Mineralogical Society of America 19 (1988) 497-559.
15. [15] Spears D.A., Kanaris-Sotirios R., Riley N., Krause P., "Namurian bentonites in the Pennine basin, UK-origin and magmatic affinities", Sedimentology 46 (1999) 385-401. [DOI:10.1046/j.1365-3091.1999.00220.x]
16. [16] Winchester J. A., Floyd P. A., "Geochemical discrimination of different magma series and their differentiation products using immobile elements", Chemical Geology 20 (1977) 325-343. [DOI:10.1016/0009-2541(77)90057-2]
17. [17] Muchangos A. C., "The mobility of rare-earth and other elements in process of alteration of rhyolitic rocks to bentonite (Lebombo Volcanic Mountainous Chain, Mozambigue)", Journal of Geochemical Exploration 88 (2006) 300-303. [DOI:10.1016/j.gexplo.2005.08.061]
18. [18] Jiang N., Sun S., Chu X., Mizuta T., Ishiyama D., "Mobilization and enrichment of high-field strength elements during late- and post-magmatic processes in the Shuiquangou syenitic complex, Northern China", Chemical Geology 200 (2003) 117-128. [DOI:10.1016/S0009-2541(03)00162-1]
19. [19] Fulignati P., Gioncada A., Sbrana A., "Rare-earth element (REE) behaviour in the alteration facies of the active magmatic-hydrothermal system of Volcano (Aeolian Islands, Italy)", Journal of Volcanology and Geothermal Research 88 (1999) 325-342. [DOI:10.1016/S0377-0273(98)00117-6]
20. [20] Kadir S., Akbulut A., "Mineralogy, geochemistry and genesis of the Taşoluk kaolinite deposits in pre-Early Cambrian metamorphites and Neogene volcanites of Afyonkarahisar, Turkey", Clay Minerals 44 (2011) 89-112. [DOI:10.1180/claymin.2009.044.1.89]
21. [21] Salvi, S., Williams-Jones, A. E., "The role of hydrothermal processes in concentrating high-field strength elements in the strange Lake peralkaline complex, northeastern Canada", Geochimica et Cosmochimica Acta 60 (1996) 1917-1932. [DOI:10.1016/0016-7037(96)00071-3]
22. [22] Zeilinski R. A., "The mobility of uranium and other elements during alteration of rhyolite ash to montmorillonite: a case study in the Troublesome formation, Colorado, U.S.A", Chemical Geology 35 (1982) 185-204. [DOI:10.1016/0009-2541(82)90001-8]
23. [23] Patino L. C., Velbel M. A., Price J. R., Wade, J. A., "Trace element mobility during spheroidal weathering of basalts and andesites in Hawaii and Guatemala", Chemical Geology 202 (2003) 343-364. [DOI:10.1016/j.chemgeo.2003.01.002]
24. [24] Christidis G. E., "Comparative study of the mobility of major and trace elements during alteration of an andesite and a rhyolite to bentonite in the islands of Milos and Kimolos, Aegean, Greece", Clays and Clay Minerals 46 (1988) 379-399. [DOI:10.1346/CCMN.1998.0460403]
25. [25] Arslan M., Kadir S., Abdioglu E., Kolayli H., "Origin and formation of kaolin minerals in saprolite of Tertiary alkaline volcanic rocks, Eastern Pontides, NE Turkey", Clay Minerals 41 (2006) 597-617. [DOI:10.1180/0009855064120208]
26. [26] Vogt K., Kostner H.M., "Zur Mineralogie, Kristallchemie und Geochemie einiger Montmorillonite aus Bentoniten", Clay Minerals 13 (1978) 25-43. [DOI:10.1180/claymin.1978.013.1.03]

Add your comments about this article : Your username or Email:
Write the security code in the box

© 2015 All Rights Reserved | Iranian Journal of Crystallography and Mineralogy

Designed & Developed by : Yektaweb