2024 : 5 : 3
Hossein Azizi

Hossein Azizi

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId: 56186773800
Faculty: Faculty of Engineering
Address:
Phone: 0871-6660073

Research

Title
Reply to comment on “Jurassic igneous rocks of the central Sanandaj–Sirjan zone (Iran) mark a propagating continental rift, not a magmatic arc (Azizi and Stern, Terra Nova, 31(5), 415–423, 2019)”
Type
JournalPaper
Keywords
,Jurassic magmatism ,Continental rift ,Sanandaj Sirjan zone
Year
2020
Journal TERRA NOVA
DOI
Researchers Hossein Azizi ، Robert J. Stern

Abstract

We thank Elahi-Janatmakan, Maghdour-Mashhour, and Shabani (in press) for their interest in our (Azizi & Stern, 2019) reinterpretation of Jurassic igneous rocks of the central Sanandaj–Sirjan zone (SaSZ) of Iran. In a nutshell, Elahi-Janatmakan et al. (in press) embrace the orthodox interpretation that these rocks represent a continental arc and reject our new interpretation that these formed in a rift. Their criticism provides a good opportunity for us to further explain our arguments and to address the problem that lies at the root of their concern: the misinterpretation of trace element data as being reli- able indicators of the tectonic setting in which melts are generated. We completely agree with their closing comments: “This study may also be regarded as a wake-up call for our research community. We should be aware that extreme caution should be exercised in the interpretations of the geochemical diagrams for distinguishing be- tween subduction-contamination basalts and plume-derived basalts that are contaminated with continental crust or subcontinental lith- osphere.” We agree whole-heartedly that any interpretations should also be based on lines of evidence beyond plotting a few trace el- ements on diagrams. Our study is built on such a firm foundation; their criticism and embrace of the orthodox interpretation of SaSZ as a continental arc is based entirely on trace element and isotopic data. In rebuttal to the criticism of Elahi-Janatmakan et al. (in press), we make the following five points which support our model and re- fute the continental arc model.