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Geophysical Well Logging in Order to Reduce Operating ... Oliveira S, Uendro C, Paranhos G, Carmo R, Braga M (2011) Gamma-gamma ray geophysical logging as a tool to aid in the description and geological interpretation. 2 nd Seminar of the Geology of Iron Ore and 1 st of Speleology. VALE, Belo Horizonte, (in portuguese) p. 75.
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In this research, OK and ANN methods have been used to re-examine the Itakpe iron ore deposit for reserve estimation. This becomes imperative as the conventional method has been used in the Itakpe iron ore reserve estimation and the government is interested in inviting the new investor to start working the mine.
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Our estimated iron-ore mass agrees reasonably well with the information provided from the lithologic logging data of drill holes. In this geophysical study, the estimated iron-ore reserves are ...
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The iron mineralisation has been interpreted based on a mixture of Fe threshold grades and the geological and geophysical logging. Iron mineralisation occurs as hematite-goethite in the upper portions of the BIF, with magnetite occurring at depth below the base of oxidation which is approximately 100 m below surface. ... Iron ore …
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OreSight is an innovative downhole geophysical logging system. Technologically advanced integrated features help to ensure seamless and safe operations. Our semi-autonomous OreSight logging system provides a highly efficient deployment of the FastGradeTM tools on drill patterns. Data is automatically transferred via 4G or WiFi to …
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The mining of stratiform ore deposits requires a means of determining the location of stratigraphic boundaries. A variety of geophysical logs may provide the required data but, in the case of banded iron formation hosted iron ore deposits in the Hamersley Ranges of Western Australia, only one geophysical log type (natural …
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The mining of stratiform ore deposits requires a means of determining the location of stratigraphic boundaries. A variety of geophysical logs may provide the required data but, in the case of banded iron formation hosted iron ore deposits in the Hamersley Ranges of Western Australia, only one geophysical log type (natural gamma) is collected for this …
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ABSTRACT. The present paper shows the results of density measurement tests determined by probing of gamma-gamma geophysical well logging, performed in two stages: one at VALE Geophysical Well Logging Test Facility (GWTF), and another in boreholes for iron ore exploration... Keywords: geophysical well logging, iron ore …
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Geophysical Borehole Nuclear Logging Probes. Density Gamma, Formation Density, Neutron Probes for Bulk Density Data by measuring radiation. ... Iron Ore Density. The Iron Ore Density probe includes extra collimation, different source-detector spacings and a higher activity source to extend the density range to 5g/cc for iron ore logging.
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We propose that for iron ore deposits in the Pilbara geophysical downhole logging may provide the necessary and sufficient information about rock formation properties, circumventing any need for ...
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common logging data such as full waveform sonic, televiewer and the SIROLOG spectrometric natural gamma logging data are examined for different applications. Although the examples used here are mainly for coal mining applications, but they can be equally applied to hard rock metalliferous mining such as iron ore mining.
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Chapter 13. SURFACE GEOPHYSICAL INVESTIGATIONS. Introduction. Surface geophysical surveys have been applied to mineral and petroleum exploration for many years. A magnetic compass was used in Sweden in the mid-1600s to find iron ore deposits. The lateral extent of the Comstock ore body was mapped using self-potential methods in …
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The mining of stratiform ore deposits requires a means of determining the location of stratigraphic boundaries. A variety of geophysical logs may provide the required data but, in the case of banded iron formation hosted iron ore deposits in the ...
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Density is the most valuable geophysical logging information and therefore its accuracy is critical for all subsequent geophysical and petrophysical data interpretation. ... Reverse circulation drilling and …
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Iron (Fe) is a metallic element that constitutes 5.6% by weight of the Earth's crust and is the fourth most abundant element in the crust. Iron ores are rocks from which metallic iron can be economically extracted. The principal iron ores contain hematite (Fe 2 O 3) and magnetite (Fe 3 O 4 ). Hematite is an iron oxide mineral.
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Borehole geophysical logging is a fundamental element of aquifer characterization because it can provide essentially continuous in situ measurements of the petrophysical properties, lithology, location and types of secondary porosity, and pore-water quality (salinity) of the logged strata. Flowmeter logs and some advanced geophysical …
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The major geophysical method utilised in gold exploration is high-resolution aeromagnetics which is used to map favourable structures and rock types. Electrical and electromagnetic methods can also be used where gold is associated with sulphides. Geophysics has been comparatively tittle used in exploration for iron ore.
Detailswork, a site test for geophysical well logging calibration was built by Vale S.A. (Brazilian mineral company) and 3 wells of Capanema Mine were selected to show the utility of joint interpretation of core sampling and geophysical well logging in the delimitation of iron ores. The results show that this approach is a useful tool to
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Geophysical well logging applied to an iron cave investigation, Carajás-PA. ... The iron ore consists of friable, fine- grained hematite with a granular or platy texture which, in most areas, is ...
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Keelan T O'Neill, Dean Langford, Einar O Fridjonsson, Michael L Johns, Quantitative analysis of diffusion regimes in iron ore with low field NMR, Geophysical Journal International, Volume 232, Issue 3, March 2023, ... Log-mean internal gradient across all 15 samples for each model. (d) ...
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Skarn iron deposits are characterized by low-medium resistivity in contact zone, low density of porphyries, high susceptibility and high polarizability of the iron ore. Utilizing the geological and geophysical information, we analyzed ore-controlling factors in different stages, implemented the locating of concealed skarn iron deposits ...
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This study used data from an investigation into the mapping of manganese-iron (Mn-Fe) mineralization, located within the Um Bogma formation. The ore takes the form of patchy isolated bodies or lenses in the three members of the Um Bogma formation located in East Sinai, Egypt. Magnetic, resistivity, and induced polarization (IP) surveys …
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Geophysical logging project management design, calibration, production. Compensated neutron corrections for an iron ore environment; Lithodensity, electrical, spectral gamma (KUT), induced polarisation, magnetic susceptibility processing and interpretation. ... Over 30 projects in iron ore, gold, Lithium and coal deposits geophysical ...
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The subsurface rocks deposits containing iron ore are estimated to be located below the AB trajectory with a length about of 164.85 meters, a depth ranging of 1.709 – 31.909 meters, and a ...
DetailsGeophysical Well Logging. Home / ... Gamma Ray-SP-DLL-Magnetic Susceptibility Log Sample (Pakistan Iron ore Exploration and Resource Estimation Project) Density Log. Density: This well log is a radioactivity …
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A variety of geophysical logs may provide the required data but, in the case of banded iron formation hosted iron ore deposits in the Hamersley Ranges of Western Australia, only one geophysical log type ... Geophysical-log and hydraulic-test analyses of groundwater-production wells at the Hannahville Indian Community, Menominee …
DetailsThe determination of iron sulfide sulfur was done by leaching the nonsulfur iron ore from coal with dilute hydrochloric acid. ... The prediction model of total sulfur in coal is established by using a multivariate linear fitting method through geophysical logging parameter values, which can provide a method for comprehensively understanding the ...
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This involves seismic methods, borehole logging, geo-radar, radio frequency electromagnetics and electrical resistivity imaging: 2D/3D seismic data processing, analysis and interpretation for coal seam structure delineation and roof characterization. Interpretation of small scale geological features from reflection seismic data.
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optimization and geophysical evaluation of the resource body. Reverse Circulation (RC) drilling is more prevalent in the iron ore mining industry due to faster penetration rates, lower costs and the ability to obtain clean, on-depth formation samples. Due to the high shock environment and minimal space
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Abulghasem et al. (2011) studied the integrated data of remote sensing and geophysical data for iron ore exploration. Subsequent image interpretation produces a map of localities or prospect with ...
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