Volume 20, Issue 2 (6-2012)                   www.ijcm.ir 2012, 20(2): 201-214 | Back to browse issues page

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Mineralogy and geochemistry of the Tang-e-hana skarns – Neyriz, Fars Province. www.ijcm.ir 2012; 20 (2) :201-214
URL: http://ijcm.ir/article-1-374-en.html
Abstract:   (3221 Views)

Tang-e-Hana skarn is located at part of the Zagros ophiolitic sequence, and then it is considered as a part of the Zagros structural province. According to the current study, this skarn is classified in 4 main groups: 1- Wollastonite skarn 2- Augite wollastonite skarn 3- Grossular wollastonite skarn 4- Andradite titanite augite wollastonite skarn. Geochemical characteristics indicate that Tang-e-hana skarn is lies in the calcic skarn domain. In addition, percentage of TiO2 in the fourth type of these skarns (bearing titanite) reaches 4%. This fact is important for concentration of REE and other trace elements in titanite. The field and mineralogical evidence illustrated that the studied skarns are endoskarns. These evidences include a high percentage of calc-silicate and non-metallic minerals and in contrast a low percentage of metallic minerals. Therefor, Tang-e-hana skarn is important for its non-metallic minerals such as wollastonite and garnet. The study of mineral paragenetic sequence and the variation diagrams of %TiO2 and %Al2O3 per %CaO suggested that wollastonite skarn is formed at the early stage and andradite – titanite – augite - wollastonite skarn at the late stage of skarnification.

Keywords: Skarn, Tang-e-hana, Neyriz, Fars
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Type of Study: Research | Subject: Special

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