We suggest a new explanation for the presence of crustally derived zircons in the upper-mantle rocks of ophiolitic complexes, as an alternative to subduction-related models. Integrated isotopic (U-Pb, Hf, and O isotopes) and trace-element data for zircons from the Tumut ophiolitic complex (southeast Australia) indicate that these grains are related to granitic magmatism and were introduced into...

The NNW-trending Dena Fault, with 140 km length, cuts the major structures of Zagros Fold-Thrust Belt in Borujen region. The fault has divided the region in two zones, in which different structural, andmorphological features as well assedimentation and seismtectonic characteristics have developed. This study presents a new interpretation for the kinematics of Dena Fault based on field evidence....

This research focuses on fracture networks in sedimentary rocks within the Umbria-Marche fold-and-thrust belt in the Northern Apennines, Italy. The aim of this research is twofold, namely to correlate the geometry of fracture networks with tectonic position and lithology and to correlate the orientation of fracture networks with the origination of a fold-and-thrust structure. The fold-and-thrus...

The most enigmatic problems with the nearly 200 salt domes pierced in the Persian Gulf and in the Zagros Mountain Ranges (ZMR) in southern Iran, a unique morphology in the world, have been the matter of this study, which is based on a combination of field work, enhancement of satellite and aerial photographs etc. In the ZMR, structural anomalies are frequently associated with similar facies dis...

abstract in this presentation, a case of bilateral choroidal folds in patient with diabetic retinopathy was reported. by our knowledge, this case presentation is the first report of choroidal folds in diabetic retinopathy, which bilateral symmetric and horizontal folds arranged in macula. the thick choroid that is developed in diabetics may be a cause of these folds but the source of difference...

The Paramirim Aulacogen was filled by the Espinhaço and São Francisco supergroups in period from 1.75 to 0.69 Ga, suffered partial inversion during Ediacaran. In northern sector of intracontinental domain Araçuaí-WestCongo Orogen, six compressive deformational phases were interpreted associated with frontal Aulacogen. Three structural domains identified: Jacaraci Fold-Thrust Belt, Caetité Nappe...