Advantages of Using Modern Thermodynamic Software in Geothermobarometry Modeling of Geological Processes Compared to the Conventional Methods, Thermocalc as example. Application on Geothermobarometry Modeling for Southern Syria Volcanism (Tal Al-Ashaer).

Authors

  • Bashar Baghdadi

Abstract

 

 

This paper discusses a geothermobarometry modeling computer software called Thermocalc through an applied example from the southern Syria volcanism, specifically from Tal Al-Ashaer volcano, is given. A graphical P-T diagram for a given chemical bulk composition of some spinel-bearing peridotite rocks (from Tal Al-Ashaer) is created. The results and their interpretation, in addition to limitations and constraints are discussed. Based on the mineralogical analysis linked to the studied mineral assemblage modes, the bulk-rock chemical composition is calculated and a geothermobarometry model using Thermocalc is made. The created model shows that the general conditions at which the rock-forming minerals (coexisting in equilibrium) define a field of stability with a range of temperature goes from 700 to 1100 C° corresponding a range of pressure between 8 and 15 Kbar. Using one of Thermocalc tools (composition isopleths) the most precise P-T conditions at which the rock was formed are estimated; T = 892 C° and P = 10.5 Kbar. The corresponding depth at which the studied samples were formed is about 36 Km. Accordingly, the crust-upper mantle boundary in the studied region is placed at that depth.

 

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Published

2018-11-14

How to Cite

1.
Baghdadi B. Advantages of Using Modern Thermodynamic Software in Geothermobarometry Modeling of Geological Processes Compared to the Conventional Methods, Thermocalc as example. Application on Geothermobarometry Modeling for Southern Syria Volcanism (Tal Al-Ashaer). TUJ-BA [Internet]. 2018Nov.14 [cited 2024Nov.24];40(5). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/4633

Issue

Vol. 40 No. 5 (2018): العلوم الأساسية

Section

Articles

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