نتایج جستجو برای: Sistan Suture Zone
تعداد نتایج: 124105 فیلتر نتایج به سال:
In this paper, faults, one of the most important causes geohazards, were investigated from a kinematic and geometric viewpoint in northern part Sistan suture zone (SSZ), which serves as boundary between Afghan Lut blocks. Furthermore, field evidence was analyzed order to assess structural type deformation mechanism research area. Birjand mountain range, several ~E–W striking faults cut through ...
The study area is located in northwest of Birjand, northern part of the Sistan suture zone in eastern Iran. There is well preserved outcrops of an ophiolite mélange in this area. This complex is composed of harzburgite, layered gabbro and spilitic basalt with flysch type rocks. Microprobe analyses of olivine, clinopyroxene, orthopyroxene and spinel in harzburgites show that olivine is forsterit...
Nosrat-Abad ophiolitic extrusive sequence, located in the Sistan Suture Zone, in south eastern Iran. The extrusive sequence, contains pillow lava, sheet flow and related volcanic-clastic breccias which have undergone low-grade metamorphism. This association shows calc alkaline to tholeiitic affinities. Interpretation of the geochemical data and behavior of the elements in different diagrams rev...
The Bandan chromite mine is the main chromite deposit in Sistan suture zone, eastrn Iran. The chromite deposits are structurally tabular to lens-shaped bodies hosted by dunitic to harzburgitic mantle peridotites. Similar to Alpine type podiform chromites, chromitite pods are enclosed within dunitic envelops. The chromites show mainly massive to disseminated and also brecciated textures. Chemica...
Kamar Tallar mineralization zone in Gazik area is engulfed within ophiolitic melange in Sistan suture zone in east of Iran .The Mn- bearing ore bodies of Kamar Tallar are occurred as discontinuous patches intimately associated with cherts and meta – spilites. Field evidences and study of trenches show that the Mn- bearing patches are principally superficial and laterally limited. Braunite, Bix...
This research assessed stress regimes and fields in eastern Iran using fault-slip data the tectonic events associated with these changes. Our analysis of brittle structures Shekarab Mountains revealed significant changes from late Cretaceous to Quaternary. Reconstructing age sense fault movements showed that during Cretaceous, direction maximum horizontal axes (?1) under a compressional regime ...
deformation pattern of the northeastern part of the iranian-arabian collision zone (i.e., mainly sanandaj-sirjan belt or zone) is the main concern of this paper. here, we investigate the stress distribution and displacement pattern of eghlid-deh bid area as affected by the position of zagros suture using a three dimensional mechanical model. the modeled area is located between the zagros thrust...
Hesaruiyeh granitoid is located about 85 Km east of Zahedan city, in the Sistan suture zone. This granitoid occurs as small stocks in Cretaceous ophiolite melange and Eocene Flysch. This granitoid is composed of granite, granodiorite and diorite. Granite and granodiorite consist mainly of quartz, plagioclase, orthoclase, biotite and hornblende and diorite is composed of plagioclase and hornblen...
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