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Article
Using fractal and multifractal methods to reveal geophysical anomalies in Sardouyeh District, Kerman, Iran
In recent decades, airborne geophysical technologies have gained popularity in mineral prospecting, especially at regional scales with limited rock outcrops and intricate geological conditions dominating the r...
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Article
The smooth transition GARCH model for simulation of highly nonstationary earthquake ground motions
The aim of this paper is to extend a stochastic model for simulation of highly nonstationary ground motions (GMs). In this model, the dual-tree complex discrete wavelet transform (DT-CDWT) is applied to a reco...
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Article
Geoelectrical integrated models for determining the geometry of karstic cavities in the Zarrinabad area, west of Iran: combination of fuzzy logic, C-A fractal model and hybrid AHP-TOPSIS procedure
The main aim of this study is to determine the location of the cave and cavities in Zarrinabad area, Lorestan province, west of Iran. For this purpose, a combination of hybrid AHP-TOPSIS procedure and content-...
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Article
Assessing the effects of 1D assumption violation in vertical electrical sounding (VES) data processing and interpretation
This research aimed to discover the possible effects of 1D assumption violations on VES data interpretations. In order to do so, 1D inversion results of logarithmically spaced and linearly spaced VES measureme...
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Article
ProxInLAS, a software program for detecting coal layers and estimating parameters of layers, using geophysical well-logs
The present paper describes the algorithm and working method for detection and estimation of proximate parameters of coal beds based on digital well-log data. Designed and developed by the authors in Visual St...
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Article
COALINLAS, a software for detecting coal beds in well-logs
In this paper, the algorithm and working method of the software are described, which allows the detection of depth and thickness of coal beds by digital information in well-logs. The software known as COALINLA...
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Article
Compiling and verifying 3D models of 2D induced polarization and resistivity data by geostatistical methods
A 3D model of collected time-domain induced polarization (IP) and electrical resistivity tomography (ERT) data is compiled by geostatistical methods as well as studying spatial correlation among the database. ...
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Article
Application of geostatistical simulation to compile seismotectonic provinces based on earthquake databases (case study: Iran)
This article is devoted to application of a simulation algorithm based on geostatistical methods to compile and update seismotectonic provinces in which Iran has been chosen as a case study. Traditionally, tec...
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Article
Statistical and geostatistical approaches to study spatiotemporal uncertainties in earthquake catalog databases
Lack of data in time and location domain is a main problem in statistical seismology. Therefore, several methods have been developed to make synthetic catalogs to compensate these uncertainties. The approaches...
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Article
On the problem of destructive Iranian earthquakes and their causative faults
This article is devoted to evaluating destructive earthquakes (magnitude >6) of Iran and determining properties of their source parameters. First of all, a database of documented earthquakes has been prepared ...
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Article
Open AccessApplication of Electrical Resistivity Imaging for Engineering Site Investigation. A Case Study on Prospective Hospital Site, Varamin, Iran
The article addresses the application of electrical resistivity imaging for engineering site investigation in Pishva Hospital, Varamin, Iran. Some aqueduct shafts exist in the study area backfilled by loose ma...
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Article
Detecting the Source of Contaminant Zones Down-Gradient of the Alborz Sharghi Coal Washing Plant Using Geo-electrical Methods, Northeastern Iran
Environmental contamination from the Alborz Sharghi coal washing plant in northeast Iran was evaluated with geo-electrical techniques. The internal structure of a coal waste pile was first studied using one di...
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Article
Environmental Geochemistry and Acid Mine Drainage Evaluation of an Abandoned Coal Waste Pile at the Alborz-Sharghi Coal Washing Plant, NE Iran
In this paper, an abandoned waste coal pile, which is resulted from Alborz-Sharghi coal washing plant, NE of Iran was mineralogically and geochemically characterized to evaluate pyrite oxidation, acid mine dr...
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Article
Performing the power spectrum-area method to separate anomaly from background for induced polarization data: (a case study; Hamyj copper deposit, Iran)
Anomaly separation plays a critical role in mineral exploration. The power spectrum-area considers the spatial data which give rise to detecting the anomalies more significantly. Induced polarization data has ...
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Article
A model of long-term oxidation and leaching processes in pyritic coal cleaning wastes
This study presents a numerical model to simulate a long-term pyrite oxidation process and subsequent multi-component reactive transportation of the oxidation productions in an abandoned coal waste pile in Nor...
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Article
Seismotectonic and seismicity analysis of the Damghan region, Iran
This paper deals with seismotectonic and seismicity analysis of the Damghan region, the central part of Semnan province, northeast of Iran. Seismotectonic and seismicity maps s well as active faults of the reg...
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Article
Contribution of geophysical inversion theory and geostatistical simulation to determine geoelectrical anomalies
This article is devoted to application of geoelectrical methods in the Abbasabad copper deposit, 26 km northeast of the city of Saveh, in central Iran. Geological studies, sampling, and preliminary exploration...
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Article
Integrated Time-Lapse Geoelectrical–Geochemical Investigation at a Reactive Coal Washing Waste Pile in Northeastern Iran
Geochemical and geoelectrical methods were used to investigate pyrite oxidation at a coal waste pile at Alborz Sharghi, in northeastern Iran. The geochemical studies revealed that the fraction of pyrite remain...
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Article
Fuzzy logic application in compiling multi geohazards macro-zone maps; case study: Rahdar, 1:25,000 Quadrangle, Khuzestan, Iran
This paper is devoted to describe a new method of fuzzy logic applied to multi geohazards macro-zone maps. The basic steps are (1) compilation of macro-zone maps for each type of geohazard phenomenon. Each phe...
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Article
A statistical model to relate pyrite oxidation and oxygen transport within a coal waste pile: case study, Alborz Sharghi, northeast of Iran
This paper presents a statistical model for predicting pyrite fraction remaining in a coal waste pile at the Alborz Sharghi coal mine located at northeast of Iran. This model calculates the fraction of pyrite...
