نتایج جستجو برای: granodiorite
تعداد نتایج: 508 فیلتر نتایج به سال:
The mechanical properties of rocks, such as uniaxial compressive strength and elastic modulus intact rock, must be determined before any engineering project by employing lab or in situ tests. However, there are some circumstances where it is impossible to prepare the necessary specimens after exposure high temperatures. Therefore, propensity estimate destructive parameters thermally heated rock...
Regional geology and tectonic framework of the Southern Indian domain, Trans-Hudson orogen, Manitoba
The collaborative federal–provincial Southern Indian Lake project in north-central Manitoba covered an area of more than 3500 km 2 the Trans-Hudson orogen. Regional-scale geological mapping, sampling, and lithogeochemical, isotopic, geochronological studies resulted identification distinct assemblages supracrustal rocks varied episodes plutonism. A granodiorite gneiss dated at ca. 2520 Ma is in...
The Lakhshak intrusive assemblage consisting of a granodiorite pluton and monzodiorite and dacite dykes are parts of Zahedan-Saravan granitoid belt which cover about 90.5 km2.. Dykes are parallel with NE-SW trends and comprise about 20-30 percent of the pluton. The granodiorite plutonis granular in texture and comprises mainly consists of plagioclase, K-feldspar, quartz, green hornblende, and...
Aligoodarz granitoidic plutons (Gole -zard and Darreh -bagh) with Middle Jurassic ages are intruded into low grade regional metamorphic rocks (slate and phyllite) and caused aureole of low to medium grade metamorphic rocks (albite-epidote hornfelse facies). Based on precise field, petrographic and geochemistry investigations, the granites belong to the S- type and their composition range from g...
The Goushe granitoid Pluton is located southeast of Boroujerd. The study area is composed of granite, granodiorite and the microgranular enclaves located in it with the granodiorite to quartzmonzodiorite combination. The microgranular enclaves presence along with evidence of the presence of the non-equilibrium textures such as dissolved margin and plagioclase zoning, sieve textures, mafic clots...
Wave propagation is used as an advanced tool of determining elastic properties of rocks. In spite of being cheap and non destructive tests of rock mechanics, due to its modernity method is not yet replacing the traditional dear and destructive tests. In order to pave ways of replacing this test and making best use of it all effective factors of such method are to be assessed. One fundamental fa...
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