نتایج جستجو برای: Lithogeochemical Data
تعداد نتایج: 2410184 فیلتر نتایج به سال:
tion of hydrothermal affects that extend beyond such features as megascopically recognizable mineralization and alteration zones. Here we present results of a preliminary lithogeochemical study of the Slocan Group, motivated by (1) the prior recognition of syngenetic sulphides in the clastic sequence, and (2) an earlier, restricted lithogeochemical study by Cox (1979) on the basis of which he r...
Abstract Most conventional statistical methods aiming at defining geochemical concentration thresholds for separating anomalies from background have limited effectiveness in areas with complex geological settings and variable lithology. In this paper, median+2MAD as a method of exploratory data analysis (EDA) and concentration-area (C-A) fractal model as two effective approaches in separation g...
taknar deposit is located about 28 km to the north-west of bardaskan in the khorasan-e-razavi province, which is situated in the north-eastern part of iran. this deposit is unique, formed within the taknar formation in the ordovician time. as a result, it is of much interest to many researchers working in this field. by choosing the lithogeochemical study performed to recognize new exploration ...
Taknar deposit is located about 28 km to the north-west of Bardaskan in the Khorasan-e-Razavi province, which is situated in the north-eastern part of Iran. This deposit is unique, formed within the Taknar formation in the Ordovician time. As a result, it is of much interest to many researchers working in this field. By choosing the lithogeochemical study performed to recognize new exploration ...
This paper describes occurrences of low grade, disseminated gold in sedimentary rocks and alkalic intrusions in the vicinity of the Howell Creek Structure (HCS; Price,1964) of southeastern British Columbia. The study is part of the B.C. Geological Surveys ongoing Sediment-hosted Gold Project, which is examining occurrences throughout the province which may have similarities to gold deposits in...
The Urumieh-Dokhtar Magmatic Arc (UDMA) is recognized as an important porphyry, disseminated, vein-type and polymetallic mineralization arc. The aim of this study is to identify and subsequently determine geochemical anomalies for exploration of Pb, Zn and Cu mineralization in Mial district situated in UDMA. Factor analysis, Concentration-Number (C-N) fractal model and Local Linear Model Tree (...
Abstract Bimodal volcanism occurs in a range of extensional environments that are characterized by distinctive but overlapping, lithogeochemical and isotopic signatures lithological assemblages. Where basaltic magmatism is associated with ferroan (A‐type) rhyolites, it typically the lithogeochemistry systematics rocks most beneficial constraining tectonic evolution. This study presents geochemi...
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...
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