نتایج جستجو برای: ophiolitic complex
تعداد نتایج: 784080 فیلتر نتایج به سال:
Hurricane Matthew affected the eastern region of Cuba from October 4th to 5th causing large damages and numerous landslides. This research presents an inventory landslides triggered by hurricane. Visual interpretation satellite images moderate resolution Sentinel 2A instrument localized higher provided PlanetScope, as well field were main sources information. The resulting landslide was compare...
Chaldoran area in NW of Iran has Mesozoic oceanic crust basement. The studied rocks of this region can be divided into three groups: ophiolitic gabbros and pillow lavas, ophiolitic volcanoclastics and Eocene lava flows. Ophiolitic mafic rocks show continental volcanic arc natures and Eocene lava flow shows OIB-like nature. During the Mesozoic,the Chaldoran region was situated in the active cont...
The Baft ophiolitic mélange, covering an area approximately 150 Km2, is located in the Esfandaghe-Khamrood melange belt. The main part of intrusive rocks in the Baft ophiolitic mélange consists of gabbros, mostly isotropic and occasionally as pegmatitic rocks. Plagiogranites, as veins and small outcrops, are common along with gabbros and doleritic dikes through the area. Plagiogranites consist ...
Abstract Metabasic rocks of the ophiolitic sequences Glockner Nappe and Eclogite Zone in south-central Tauern Window, Austria, reveal important insights into rifting spreading Alpine Tethys. U–Pb dating magmatic zircons yields a concordant 157 ± 2 Ma crystallization age for precursor coarse-grained metagabbro from Nappe. The Late Jurassic intrusion is coeval with mafic plutonic activity Western...
heavy metal concentration in the soils and sediments has increased worldwide during the last century due to the mining, smelting, and industrial activities. the forumad chromite deposit is located in the sabzevar ophiolitic complex (soc), with a long history of mining activities, yet very little is known about the heavy metal contamination in its surrounding environment. in this research work, ...
The mafic and ultramafic igneous rocks of the ophiolitic complex in eastern Birjand) between Sulabest in southern part to north of Gazik in northern part) Have been studied. According to plot of data on diagrams and the result of mineralogy and geochemistry, gabbros and some peridotites belong to cummulate series of spreading sea floor magma (MORB) where some peridotites are of metamorphic (tec...
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