Morteza Khalatbari Articles List

List of Articles Morteza Khalatbari

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1 - Morphometric age of Khatoon-Bagh cinder cone, NE of Mahabad, West Azerbaijan province
Morteza Khalatbari Nafiseh Salehi Marzieh Faridi Masouleh

Scoria cone near Khatoon-Bagh, NE of Mahabad in West Azerbaijan province consists of 3 Parts: Lower part containlayer of scoria, ash and tephra, middle part consist of volcanic bomb-bearing scoria and finally (Cupper part) a layer full of bomb. Their composition is main More

Scoria cone near Khatoon-Bagh, NE of Mahabad in West Azerbaijan province consists of 3 Parts: Lower part containlayer of scoria, ash and tephra, middle part consist of volcanic bomb-bearing scoria and finally (Cupper part) a layer full of bomb. Their composition is mainly olivine basalt. The morphometric data used for morphologic age were either derived by manual measurement on topographic maps and by Digital Elevation Model-based (DEM) calculations. The main parameters of cone such as height, basal and crater diameter have been measured for calculation of Hco/Wco ratio and average slope angle. The main parameters show that the basal shape of this cinder cone is elliptical and at the crater is super elliptical, therefore can categorize it as horseshoe-shaped cone. The comparison of main parameters from a number of previous studied cinder cones from around the world suggest that dimensions of Khatoon-Bagh cone is similar to global average. Since with the increase in age and degradation of cone, the height, height to diameter and slope angle of cone will decrease, so Hco/Wco could be used for morphometric ages. According to Wood (1980b) and Sucipta et al. (2006) aging data and Porker (1972)’s relations, the relative age of Khatoon-Bagh cinder cone estimate 0.7-2 Ma which is in agreement with stratigraphic age in geological maps Manuscript profile
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2 - Petrology of Oigocene volcanic rocks in the Deh Tah area, south of Dehuk, Lut Block
Morteza Khalatbari نرمین بانه ای Mohammad فریدی
20.1001.1.17357128.1399.14.56.6.9

The study area in the south of Deh Tah, Lut Block comprise Oligocene volcanic rocks which are composed of andesite, trachyandesite, dacite and rhyolite. These lavas have porphyric to porphyritic textures with abundant amphibole phenocrysts. Most of the Oligocene lavas d More

The study area in the south of Deh Tah, Lut Block comprise Oligocene volcanic rocks which are composed of andesite, trachyandesite, dacite and rhyolite. These lavas have porphyric to porphyritic textures with abundant amphibole phenocrysts. Most of the Oligocene lavas display calck alkaline to high-K calck alkaline magmatic affinities. In the binary diagrams, the andesitic to trachyandesitic samples cluster far away from the trachydacitic, dacitic and rhyolitic samples suggesting that they were not afftected only by magmatic differentiation. The REE patterns and spider diagrams show enrichement in light ion litophile element (LILE) and hight field strength element (HFSE) depletion. The normalized patterns of the andesite to trachyandsite have a reliable overlap with oceanic island basalt (OIB). The patterns of the acidic lavas are correlated with the patterns of continental crust. These geochemical evidence indicate that the andesitic to trachyandesitic lavas are generated from partial melting of lithospheric mantle which previously metasomatized by subduction components (melt-fluids). Partial melting of the continental crust has an important role in generation of the acidic lavas. Based on geological setting and geochemical data, it seems that the Oligocene volcanic rocks formed in a post-collision zone, due to thinning of the continental lithosphere in Lut Block. This process is probably related to lithospheric delamination which occurs in a post-collisional zone in Lut Block, as a part of the Alpine-Hymalaya orogenic belt. Manuscript profile

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List of Articles Morteza Khalatbari