Strength of Damavand Volcanic Cone Quaternary Rocks against Destruction and Erosion based on Mineralogy Composition by Using TAS & KUNO Diagrams
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2014, Vol 8, Issue 7
Abstract
This paper intends to study strength of external igneous rocks by using Kuno diagram and reclassification of TAS diagram with respect to mineralogy composition regarding amount of Sio2 effect on rate of rocks toughness and looseness against destruction and erosion in geomorphological point of view. TAS diagram has been used in recommended classification by International Union Ground Sciences (IUGS) for chemical classification of small stone particles. Two factors are significant in said diagram to classify rocks: sum total of Na2o + K2O weight percent has been used in comparison with Sio2 weight percent. For this purpose, rocks have been classified by Sio2 changes rate to six groups with different percent of weight, by which diagram was divided to five limits which are ranged from one to five as values equal to very sensitive state until very resistant state. Results show that Damavand rocks are ranged between sensitive to resistant and they are among alkaline limit until intermediate limit. Kuno diagram was used for better understanding of chemical range classification of Damavand rocks and the result is all the Damavand rocks are ranged in alkaline series.
Authors and Affiliations
Amirhoushang Shirazi| Department of Geography, Science and Research Branch, Islamic Azad University, Tehran, Iran Kashani alley, Kamaly St., Ebnbaboeah, Sharrey, Tehran, Iran, email: Amirhoushangshirazi@yahoo.com, Manuchehr Farajzadeh| Member of the Faculty, University of Tarbiat Modares, Iran, Mohammad Reza Servati| Member of the Faculty of Earth Sciences, Shahid Beheshti University
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