Geysour area, east of Gonabad, is a part of the northern Lut block. The rocks in this area include granitoid and a series of metamorphic rocks. In metapelitic rocks, the presence of S1 schistosity and the mineral chloritoid are indicative of regional metamorphism. The presence of random textural evidence in minerals such as andalusite, staurolite, muscovite and post-tectonic garnet and silimani...

Garnet is the most abundant calc-silicate mineral in the Darreh Zereshk skarns, and occurs as grained euhedral, to massive anhedral, isotropic to anisotropic crystals and display concentric and sector zoning or no zoning. Based on mineralogical investigations and paragenetic relations, garnet formed during progrademetasomatic stage of skarn formation. Geochemically they display two different pa...

رOpticully sector· twinned ga rn et was found in a piemontite quartz sch ist in Ihe Asemi.gawa area from the Sanbagnwa metamorphic helt. The Sanbagawa metamorphic hell wa.~ formed during a regional Cretaceous intermediate high pressure type of metamorphism which is present through Southwest Japan. The garnet contains abundant inclusions of piemontite, quartz, hematite, braunite, talc and s...

The Middle Jurassic granitoids from Molataleb village lie in the Sanandaj-Sirjan zone. This body located, NW of Isfahan, and is predominately composed of tonalites and two-mica peraluminous granodiorites cross cut Jurassi (Liass-Dogger) shales and slates. Tourmaline and garnet are among significant minor minerals of the granodiorites. Subhedral to anhedral tourmaline with pleochroic brown-green...

The Geysour area is located east of Gonabad and is a part of the northern Lut block. The rocks in this area include granitoid and metamorphic rocks. Based on field and mineralogical evidence, the protolith of amphibolite rocks are calc-silicate. The metamorphic rocks of this region are divided into metapelites and amphibolites. Textures, such as post-tectonic garnet and random amphiboles, are i...