نتایج جستجو برای: petrographical characteristics
تعداد نتایج: 660499 فیلتر نتایج به سال:
this research is focused on facies distribution, palaeoecology and palaeoenvironment of the gurimember of the mishan formation in kuh-e shur and kuh-e kurdeh sections at the lar area, fars province.the guri member is composed of limestone, marly limestone and marl and the thickness at kuh-e shur andkuh-e kurdeh is about 72 and 110 meters, respectively. based on petrographical studies of 120 thi...
Petrographical study of detrital and authigenic minerals from the Ajali Formation in Benin flank Anambra Basin was carried out with aim interpreting textural characteristics alteration patterns. Samples were collected Ayowgiri sand quarry site along Fugar-Agenebode road where good exposures Sandstone occurred. Heavy concentrated using bromoform according to standard procedures. The heavy minera...
The study area is located in Upper Egypt as a part of the Sohag Governorate. In this study, engineering geological properties for soil deposits three new urban areas southwestern Governorate are discussed and evaluated based on field survey boring, geotechnical experiment petrographical examination. studied covered by Quaternary Pliocene composed mainly gravely sand, silty clay, clayey silt roc...
a novel acrylic acid-functionalized fe3o4 magnetic nanoparticle with a core-shell structure was developed for utilization as a heterogeneous organosuperacid in chemical transformations. the structural, surface, and magnetic characteristics of the nanosized catalyst were investigated by various techniques such as transmission electron microscopy (tem), thermogravimetric analysis (tga), and ft-ir...
The Paleogene volcanic rocks of Damash have a considerable outcrops in Alborz structural zone in Guilan Province. These volcanic rocks show a compositional range from olivine basalt, basaltic andesite, pyroxene andesite to andesite. The petrographical and geochemical studies indicate that the fractional crystallization of clinopyroxene and olivine play an important role in lithological varietie...
Fire clay of the Kabutarkuh deposit, located about 50 km southeast of Gonabad (Khorasan Province), was analyzed for its mineralogical and chemical compositions. Kaolinite, pyrophilite, quartz, dickite, gypsum, illite and alunite are the dominant minerals, and a minor phase of hematite is also present. Geochemical data show that the whole rock sample is mainly composed of SiO2, Al2O3 and K2O. Ch...
Gunung Kidul Regency is a highland consisting of carbonate rocks dominantly. Bedoyo village in Ponjong sub district has lot dolines, but the summer season, dolines become dry and could not be water storage. Geological mapping included geomorphological, rock observation, structural also petrographical analysis laboratory. A Geophysics survey to observe subsurface distribution laterally verticall...
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