salafchegan-khorhe volcanic rocks are exposed within urumieh-dokhtar magmatic belt. different kinds of volcanic and subvolcanic rocks of calc-alkaline to alkaline character have been reported throughout this magmatic belt. since, isotopic investigations are very useful for detection of magma petrogenesis and because no isotopic studies have been done in this area, so a geochemical and isotopic ...

Subduction of oceanic lithosphere can cause crustal growth and destruction, but whether this balancing act is common in a single fossil convergent system has been unclear. Here we report geochronologic-geochemical-isotopic data on Mesozoic igneous rocks the central-eastern Gangdese arc. Our results reveal: (a) A coupling magmatic arc migration toward continent interior with marked incompatible ...

Abstract The Longshou Shan of western China is the northern backstop Cenozoic Himalayan-Tibetan orogen and occupies a key linkage between Tarim continent North craton which separate pre-Cenozoic Tethyan orogenic system Central Asian system. Therefore, Paleoproterozoic–Paleozoic evolution this region critical to understanding extent overprinting deformation, construction Eurasian continent, rela...

Since late 2019 many people all over the world have become infected and died due to coronavirus. There been general studies about spread of virus. In this study, new accumulated confirmed cases (NCC ACC), recovered (NRC ARC), deaths (ND AD) were evaluated by geographical properties, meteorological parameters air particulate matters between 3 April 2020 11 June within 15 provinces in Iran. Meteo...

Part 1 of this paper is concerned with various types of deformation of volcanic cones as listed in Table 1. In regard to the crustal displacements before and after eruptions, the local upheaval and fracturing near crater remain as a permanent deformed topography, but the areal upheaval and subsidence before and after eruption are believed to be a reiterative movement caused by increase and decr...

1 Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. 2 Industrial Engineering Department, College of Engineering, Shahid Bahonar University, Kerman, Iran. 3 Institute of Advanced Technology, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia. 4 Department of Industrial Engineering, Islamic Azad University of Kerma...