The Marivan granitoid body of the northern Sanandaj–Sirjan Zone (N-SaSZ) northwest Iran was emplaced into Cretaceous sediments, and is associated with minor amounts iron skarn-type mineralization along contact between intrusion surrounding country rocks. granitoids within include (hornblende-rich) diorite, granodiorite, granite phases, zircon U–Pb dating four samples from this indicate they wer...

At present, rockburst disasters cannot be predicted accurately, and the prevention control of deep underground engineering are significantly challenging. To explore evolution law precursory information instability, test diorite was conducted with high confining pressure different unloading rates (0.1 MPa/s, 0.3 0.5 0.7 0.9 MPa/s). Multidimensional analysis is carried out by evaluating deformati...

study area is located in district of bajestan and ferdows cities, ne of iran. structurally, this area is part of lut block. the oldest exposed rocks, to the north of intrusive rocks and in eastern bajestan, are meta-chert, slate, quartzite, thin-bedded crystalline limestone and meta-argillite. the sedimentary units are: sardar formation (carboniferous), jamal formation (permian), sorkh shale an...

The Northern Dabie Complex in east central China lies between the Sino–Korean plate to the north and the Yangtze plate to the south. The Northern Dabie Complex has been variously proposed to represent a Paleozoic magmatic arc on the Sino–Korean plate, an exhumed piece of subducted Yangtze plate crust, or crust produced almost entirely by Cretaceous extension-related magmatism. Trace element com...

the halak abad prospect occurs in the northeastern part of central iran zone (sabzevar structural zone). in this investigation, geochemical evolution, age and source of part of northeastern iran magmatic arc (intrusive bodies) in halak abad area in the khorasan razavi province has been studied. the exposed rocks consist of volcanic rocks with andesite and dacite nature, limestone, plutonic rock...

West Junggar is a key area for understanding intra-oceanic plate subduction and the final closure of Ocean. Knowledge Carboniferous tectonic evolution Ocean region required framework accretionary processes in Junggar, Central Asian Orogenic Belt. A series Early volcanic intrusive rocks, namely, basaltic andesite, dacite, diorite, occur Mayile southern northwestern China. Our new LA-ICPMS zircon...