نتایج جستجو برای: geochemical zonality index

تعداد نتایج: 407770  

Journal: :international journal of environmental research 0

a total of 148 groundwater samples were collected from bore wells from thirumanimuttar sub-basin for two seasons to identify major geochemical process activated to alter groundwater chemistry. the study revealed relationships with the lithology and anthropogenic process. groundwater in the region was dominated by na – ca – mg and cl and hco3 types. the (ca +mg) versus tz+ plot for both seas...

Journal: Geopersia 2018

The purpose of this study is to determine geochemical anomalies on lithogeochemical data from Ardestan area, Central Iran, using concentration-number (C-N) fractal modeling and staged factor analysis. Staged factor analysis is used to the recognition of genetic correlation and elimination of non-indicator elements in three steps. Factor scores of elements were calculated and geochemical data cl...

Journal: Geopersia 2012
Ebrahim Ghasemi-Nejad, Maryam Mirzaloo

The Kazhdumi Formation of the Bangestan Group is a well-known and important source rock in most oil-fields in the Zagros Basin. In order to examine productivity of this formation in southwestern Iran, and to correlate petrographical and palynological data with geochemical properties, one of the best outcrops of this formation, located in Tange-Maghar 45 km northwest of Behbahan city, was sampl...

محمدی, سید سعید ,

The oxidation of sulfide minerals in coal and mine's waste materials produce acid mine drainage. The evaporation, oxidation, dilution and neutralization of this acid drainage lead to formation of secondary minerals. Due to having broad surface spreading these minerals have the potential of maintaining sulfates and many of the metallic elements. In order to carry out mineralogical and geochemica...

آقائی کریق, مسلم, رقیمی, مصطفی, شمعانیان, غلامحسین, قلی پور, محسن ,

The oxidation of sulfide minerals in coal and mine's waste materials produce acid mine drainage. The evaporation, oxidation, dilution and neutralization of this acid drainage lead to formation of secondary minerals. Due to having broad surface spreading these minerals have the potential of maintaining sulfates and many of the metallic elements. In order to carry out mineralogical and geochemica...

Journal: :زمین شناسی اقتصادی 0
مهدی بمانی سید حسین مجتهدزاده امیر حسین کوهساری

introduction mohammad-abad oryan is the only potential source of borate in the north-east of iran located in 50 km south of sabzevar. the area is located in tuff marl, tuffaceous marl, volcanic braccia and tuff braccia structures. remote sensing techniques, geological studies and integration of this data in gis were applied in an area of about 600 square kilometers to locate the promising areas...

Journal: :Transactions of the Royal Society of Tropical Medicine and Hygiene 2007
Gail Davey Fasil Tekola Melanie J Newport

This article reviews peer-reviewed publications and book chapters on the history, epidemiology, genetics, ecology, pathogenesis, pathology and management of podoconiosis (endemic non-filarial elephantiasis). Podoconiosis is a non-infectious geochemical elephantiasis caused by exposure of bare feet to irritant alkalic clay soils. It is found in at least 10 countries in tropical Africa, Central A...

2007
D. K. Nordstrom

A model takes on the quality of theory when it abstracts from raw data the facts that its inventor perceives to be fundamental and controlling, and puts these into relation to each other in ways that were not understood before—thereby generating predictions of surprising new facts. Geochemical modeling has become a popular and useful tool for a wide number of applications from research on the f...

Journal: :geopersia 2012
maryam mirzaloo ebrahim ghasemi-nejad

the kazhdumi formation of the bangestan group is a well-known and important source rock in most oil-fields in the zagros basin. in order to examine productivity of this formation in southwestern iran, and to correlate petrographical and palynological data with geochemical properties, one of the best outcrops of this formation, located in tange-maghar 45 km northwest of behbahan city, was sample...

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