نتایج جستجو برای: petrographical characteristics
تعداد نتایج: 660499 فیلتر نتایج به سال:
In this research, different experimental techniques have been used to determine the strength of four types of travertines, selected from Hamedan and Markazi Provinces, west and central parts of Iran respectively. For this purpose, after sample preparation and assessment of mineral properties, the selected samples were subjected to physical and mechanical tests with special reference to two majo...
The present study was carried out on commercial types of Aswan granite used as building and decorative materials. Nearly 29 granitic rocks samples from 11 classes (black Aswan, red dark Rosa, light yellow Verdi, grey Shirka, Gandolla, Forsan, Nefertiti, Royal, white Halayeb) were collected three stations near city for petrographical description assessment natural radioactivity. granites conduct...
In this study, Hallaçlar Volcanites located in Bayramiç-Çanakkale region were evaluated terms of strategic element contents. Mineralogical-petrographical and geochemical investigations carried out on the samples which taken from outcrops with intense hydrothermal alteration. The stratigraphy study area consists Sütüven Formation (Kazdağı Metamorfites), Çetmi Ophiolitic Melange, Evciler Pluton V...
An important problem of marble-quarry management is assessing the quality and the homogeneity of quarry blocks before excavation. In this study, we decided to image the limestone, which we studied in a marble quarry, in terms of layer thickness, discontinuities and cavities using the ground-penetrating-radar (GPR) method. The method was successfully applied to detect and map the fractures with ...
Kepsut-Dursunbey volcanic field (KDVF) is located in NW Turkey and contains various products of the post-collisional Neogene magmatic activity. Two distinct volcanic suites have been recognized; the Kepsut volcanic suite (KVS) and the Dursunbey volcanic suite (DVS). The KVS includes basaltic trachyandesitebasaltic andesite-andesite lavas and associated pyroclastic rocks. The DVS consists of dac...
Diamictites, especially those deposited before the break-up of Gondwana in the Late Carboniferous and Permian, have recently been suggested to represent ejecta deposits from large comet or meteorite impact events. This is in contrast to the commonly held interpretation that these rocks represent glaciomarine sedimentary deposits. To test this controversial hypothesis, we carried out a detailed ...
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