搜索结果: 1-14 共查到“地质学 Iran”相关记录14条 . 查询时间(0.162 秒)
Geology and Mineral Chemistry of Gold Mineralization in Mirge-Naqshineh Occurrence (Saqez, NW Iran): Implications for Transportation and Precipitation of Gold
gold quartz veins mineral chemistry EPMA Mirge-Naqshineh Iran
2018/4/10
The Mirge-Naqshineh gold district is situated at northwest of Iran with a NW-trending brittle-ductile shear zone. It is hosted by Precambrian meta-sedimentary and meta-volcanic units traversed by mine...
Platinum-Group Elements Geochemistry and Chromian Spinel Composition in Podiform Chromitites and Associated Peridotites from the Cheshmeh-Bid Deposit, Neyriz, Southern Iran: Implications for Geotectonic Setting
Cheshmeh-Bid Chromitite trace elements platinum-group elements boninitic magma supra-subduction zone
2018/4/10
Dunite and serpentinized harzburgite in the Cheshmeh-Bid area, northwest of the Neyriz ophiolite in Iran, host podiform chromitite that occur as schlieren-type, tabular and aligned massive lenses of v...
Morphological, Physico-Chemical and Clay Mineralogy Investigation on Gypsiferous Soils in Southern of Tehran, Iran
Morphology Clay mineralogy Smectite Palygorskite Gypsum Arid soils
2011/11/7
In this study, based on topographic maps, satellite images and conducted several field visits, ten pedons studied in the area and for further study four representative pedons selected which occurring ...
Physico-chemical characteristics and clay mineralogy composition of selected soils in arid and semiarid regions of Iran
Physico-chemical characteristics clay mineralogy composition Iran
2011/11/10
Knowledge of soil types and their properties is highly important in determining constraints and potential as well as better utilization of soils. Clay minerals are important fractions of the soil soli...
Relationship Between Soil Potassium Forms and Mineralogy in Highly Calcareous Soils of Southern Iran
Arid Illite Calcium carbonate Exchangeable K HNO -extractable K
2011/11/11
Thirty seven soil samples collected from arid and semiarid regions of southern Iran were studied to determine the different forms of potassium and their relation with clay mineralogy and other soil pr...
Early Frasnian sharks from central Iran
Chondrichthyes Teeth Scales Omalodontiformes Phoebodontiformes
2009/10/20
Two limestone bone-beds in the early Frasnian of the Chahriseh section, central Iran, yielded numerous chondrichthyan teeth and scales. The fauna includes, most probably, only two taxa: a hitherto unk...
The comparison of alteration zones in the Sungun porphyry copper deposit,Iran (based on fluid inclusion studies)
Fluid inclusion Porphyry copper deposit Potassic alteration Phyllic alteration
2009/10/20
The Sungun porphyry copper deposit (PCD) is located in EastAzarbaijan, in northwestern Iran. The felsic rocks occur as stocks and dykes ranging in composition fromquartzmonzodiorite through quartzmonz...
Famennian chondrichthyan remains from the Chahriseh section,central Iran
Chondrichthyes teeth scales palaeoecology devonian Famennian Iran
2009/10/20
Hairapetian, V. and Ginter, M. 2009. Famennian chondrichthyan remains from the Chahriseh section, central Iran.Acta Geologica Polonica, 59 (2), 173–200. Warszawa.a diverse shallow water assemblage of ...
Distribution, lithology and provenance of peridesert loess deposits in northeastern Iran
Silty deposits Loess Quartz microtexture Loess provenance Iran
2011/11/11
Silty deposits cover different landforms bordering the city of Mashhad in NE-Iran. Despite the potential of these deposits to provide important information regarding landscape evolution as well as lan...
Genesis and Clay Mineralogical Investigation of Highly Calcareous Soils in Semi-Arid Regions of Southern Iran
Calcium carbonate accumulation clay eluviation-illuviation neoformation semi-arid region
2011/11/7
Genesis and Clay Mineralogical Investigation of Highly Calcareous Soils in Semi-Arid Regions of Southern Iran.
Pedogenesis and clay mineralogical investigation of soils formed on gypsiferous and calcareous materials, on a transect, southwestern Iran
Clay minerals Palygorskite Gypsum crystals Calcareous soils Semi-arid SEM
2011/11/8
This study examined pedogenesis, as well as the clay mineralogy of soil and rock samples obtained from a transect of gypsiferous and calcareous materials. The main objectives of this research were to ...
Genesis of selected gypsiferous soils in southeastern Iran
gypsiferous soils southeastern Iran Genesis
2011/11/10
The main objective of this research was to investigate the mode of gypsum deposition and the source of clay minerals in selected gypsiferous soils in Rafsanjan area,southeastern Iran.
Correlation of the clay mineral distributions in the sedimentary rocks of south and western Zagros, Iran
chlorite palygorskite kaolinite clay mineral distributions
2011/11/8
Clay minerals of calcareous sedimentary rocks of south (Fars and Kuhgiluyeh Boyerahmad Provinces) and western Iran (Kurdestan Province) as a part of the old Tethys area were investigated in order to c...
Quantitative Estimation of Palygorskite using thermogravimetric Analysis in Paleosols from Sepahanshahr, Isfahan, Iran
Quantitative Estimation Palygorskite thermogravimetric Analysis
2011/11/4
Palygorskite accounts for a major portion of the minerals present in paleosols in the central Iranian plateau. The identification and quantitative determination of this clay mineral is of great import...