نتایج جستجو برای: geochemical analysis

تعداد نتایج: 2833922  

Journal: :Applied sciences 2021

Assessing the suitability of urban and agricultural land is essential for planning sustainable systems. The main objective this study to evaluate in Ioannina plain (western Greece) concerning soil contents two potentially toxic elements, cadmium (Cd) cobalt (Co). Geochemical spatial analysis methods were applied assess distribution Cd Co identify their origin. primary anthropogenic sources tops...

The purpose of mineral exploration is to find ore deposits. The main aim of this work is to use the fuzzy inference system to integrate the exploration layers including the geological, remote sensing, geochemical, and magnetic data. The studied area was the porphyry copper deposit of the Kahang area in the preliminary stage of exploration. Overlaying of rock units and tectonic layers were used ...

Journal: :iranian journal of science and technology (sciences) 2006
s. alipour

lag is a general term applied to coarse grained (> 2 mm), hard, but partially weathered rockfragments, which are concentrated at the surface through attrition of finer materials. based on morphology,mineralogy and the origin of lag from the cobar region of australia, lag may be conveniently grouped intothree broad morpho-mineralogical categories; (a) those with a rough, blocky, lithic morpholog...

Journal: :Applied Ecology and Environmental Research 2012

Identification of geochemical anomalies is a significant step during regional geochemical exploration. In this matter, new techniques have been developed based on deep learning networks. These simple-structure-networks act like our brains on processing the data by simulating deep layers of thinking. In this paper, a hybrid compositional-deep learning technique was applied to identify the anomal...

Journal: :مهندسی معدن 0
علی کردوانی دانشگاه تهران فریدون سحابی دالنشگاه تهران حسین معماریان دانشگاه تهران

physical and chemical properties of  crude oil, including viscosity and api gravity, are commonly inherited  from the  early organic matter, environmental conditions in which they were deposited and depth of burial of the source beds. api gravity increases in deeper burial due to higher thermal maturation of organic matter in the source rocks and consequently, generation of lighter saturated hy...

2017
Marzena Rachwał Małgorzata Wawer Tadeusz Magiera Eiliv Steinnes

The main objective of the study was an assessment of the pollution level of agricultural land located close to dumps of industrial waste remaining after former Zn and Pb ore processing in Poland. The integrated geophysical-geochemical methods were applied for assessment of soil quality with respect to trace element pollution. Additionally, human health risk induced by the contaminated arable so...

2014
Brandon Lee Drake Wirt H. Wills Marian I. Hamilton Wetherbee Dorshow

Strontium isotope sourcing has become a common and useful method for assigning sources to archaeological artifacts.In Chaco Canyon, an Ancestral Pueblo regional center in New Mexico, previous studiesusing these methods have suggested that significant portion of maize and wood originate in the Chuska Mountains region, 75 km to the West [corrected]. In the present manuscript, these results were t...

2009
R. ALAGARSAMY

An analysis of the geochemical distribution of selected trace metals among various geochemical phases of the sediments in the Oman Margin was carried out using a sequential extraction technique. The present study showed that most Cu in abyssal sediment is associated with only oxidisable mainly organic and sulphide bound metals with insignificant bound to exchangeable, carbonates, easily/moderat...

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