geophysical logging in iron ore

Geology, Prospecting and Exploration for Iron Ore Deposits ...

Apr 09, 2015  The geophysical techniques used in the search for iron ores, as in most geophysical mapping, are based upon the presence of measurable contrasts of physical properties between the ore minerals and the surrounding rocks.

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Downhole geophysics sensors for reverse circulation ...

Downhole geophysics sensors for reverse circulation drilling in iron ore. Measurement While Drilling (MWD) and Logging While Drilling (LWD) tools acquire geophysical and operational data from directly behind the bit during drilling operations. This data can be transmitted back to surface to allow real-time geosteering, target confirmation ...

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Home - Terra Logging Data Services

Over 30 projects in iron ore, gold, Lithium and coal deposits geophysical, geological, geotechnical and petrophysical interpretation. Successfully developed the first dual density production program for the largest iron ore Australian producer, from initial technical design,

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SURFACE GEOPHYSICAL INVESTIGATIONS

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 the 1880s. A

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EVALUATION OF GAMMA-GAMMA WELL LOGGING DATA

site atgeophysical well logging campaigns. During Vale iron ore exploration activities which involved geophysical well logging, a number of measurements were per-formed at GWTF, resulting in a set of data used to verify the proper operation of atool atfield works. RESULTS For the set of blocks composing GWTF’s measurement tower, a

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Application of borehole imagery in iron ore - examples ...

Download Citation Application of borehole imagery in iron ore - examples from the hamersley group, western australia The borehole televiewer is a downhole geophysical logging device that ...

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Near Real-Time Classification of Iron Ore Lithology by ...

cannot beat the shovel. 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 real-time elemental analysis entirely. This study provides an example

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Developing cost-effective seismic mineral exploration ...

Sep 04, 2017  Downhole-logging investigations including full-waveform sonic and laboratory density measurements were ... also a wealth of geophysical and downhole-logging data ...

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Home [endeavourgeo]

Our logging technicians are ready to conduct downhole geophysical surveys of any borehole with a suite of logging probes. Logging Suite PFN Logging Coal Iron Ore. Technical Innovation. Endeavour has developed a suite of downhole tools and equipment. Logging Platform Gyroscopic Surveying.

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Resume/CV - Exploration Contract Geologist based in Tanzania

Duties included lithological logging, coal quality core sampling, computer data entry, validating and geophysical down-hole log interpretation OCT 00 - JAN 01 PORTMAN IRON ORE LTD (Contract)

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AUSIMM Event Info Site

Challenges in Designing a Magnetic Resonance Logging-While-Drilling Tool for Iron Ore Exploration 11:10 AM - 11:30 AM Abstract. Biography. Keelan is a Research Fellow in the UWA Fluid Science and Resources (FSR) division. ... I have taken part in the geological / geophysical data acquisition process at all stages of the data chain having worked ...

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Automated recognition of stratigraphic marker shales from ...

Apr 01, 2015  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 purpose.

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Geophysical Exploration of Iron Ore Deposit in Kimachia ...

Abstract: A combined geological and geophysical survey undertaken in Kimachia area of Meru County in central Kenya has established the existence of small scale iron ore deposit that seems to be part of a more extensive iron rich zone.

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Geology, Prospecting and Exploration for Iron Ore Deposits ...

Apr 09, 2015  The geophysical techniques used in the search for iron ores, as in most geophysical mapping, are based upon the presence of measurable contrasts of physical properties between the ore minerals and the surrounding rocks.

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Geophysical Well Logging in Order to Reduce Operating ...

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. 3. Rider M (2002) The geological interpretation of well logs. Whittles

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GEOPHYSICAL METHODS IN EXPLORATION AND MINERAL ...

GEOPHYSICAL METHODS IN EXPLORATION AND MINERAL ENVIRONMENTAL INVESTIGATIONS by Donald B. Hoover, Douglas P. Klein, and David C. Campbell INTRODUCTION In the following discussion, the applicability of geophysical methods to geoenvironmental studies of ore deposits is

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Geophysical Well Logging in Order to Reduce Operating ...

References Kearey P, Brooks M, Hill I (2002) An introduction to geophysical exploration. Blackwell Science Ltd., London, pp. 281. 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)

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Automated recognition of stratigraphic marker shales from ...

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 purpose.

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Casing correction of slimline density logs for iron ore ...

An adaptation of the oil and gas C–thru cased–hole processing technique (Elkington et al, 2006) is used to obtain Slimline geophysical logs are frequently used worldwide in formation densities in iron ores using logs recorded through the iron ore exploration because they provide key data for ore drilling rods.

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Near Real-Time Classification of Iron Ore Lithology by ...

Grade control is one such issue where the laboratory assay turn-around times cannot beat the shovel. 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 real-time elemental analysis entirely.

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Geophysical Methods, Exploration Geophysics » Geology Science

The physical properties of rocks have been used to devise geophysical methods that are essential in the search for minerals, oil and gas and other geological and environmental problems. ... Electromagnetic methods are used to detect metallic ore bodies. Seismic methods: ... Well logging method.

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James Pasznicki - Geophysical logging - Surtech Systems ...

Logging and directional surveying of drill holes using gamma, magnetic susceptibility, neutron, density, resistivity, conductivity, sonic, optical acoustic televiewer, downhole video, gyro directional tools. Preventative maintenance and calibration of all equipment used. CLIENTS= BHP Iron ore, Rio Tinto, Cape Preston Iron ore.

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Application of borehole imagery in iron ore: examples from ...

Jul 18, 2013  The borehole televiewer is a down-hole geophysical logging device that produces continuous, oriented, 360° images of the drill hole wall. Two types of borehole images are currently being generated at the Mount Whaleback iron ore deposit in Western Australia.

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Notice to ASX

Geophysical logging was completed for most drill holes employing a suite of down hole tools to obtain calliper, natural gamma and other data to assist in the ... with current Rio Tinto Iron Ore practices where ore from multiple mines is combined to produce the Pilbara Blend product.

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GEOPHYSICAL EXPLORATION FOR IRON ORE PROSPECT

GEOPHYSICAL EXPLORATION FOR IRON ORE PROSPECT USING GRAVITY METHOD IN MERU COUNTY, KENYA JOSEPH MUGACIA NGURU [B.Ed (Sc)] I56/CE/26621/2011 A research thesis submitted in partial fulfillment of the requirements for the award of the degree of Masters of Science in the School of Pure and Applied Sciences of Kenyatta University APRIL, 2019

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Iron Ore Exploration - Geology and Geophysics ...

Commonly geophysical programs in Iron Ore exploration : 1. Magnetic 2. Resistivity IP 3. Gravity B1. MAGNETIC Magnetic method is one method of exploration geophysics that uses the earth's magnetic phenomena to predict the structure or geological conditions below the surface.

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Learning Geology: Geophysical and geological logging

Jun 26, 2015  There is a wide range of instruments, geophysical logging tools, that are lowered down a borehole to record the physical and chemical properties of the rocks. These instruments are mounted on a device called a sonde that is lowered down the

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The use of geophysical methods in permafrost investigation ...

Jan 01, 1974  Neutron logging is useful to determine the degree of moisture and ice in the rock which is a major factor when blasting iron ore under frozen conditions. Gamma-gamma logging technique can determine the porosity of iron ores and as pore ice in permafrost causes most of the difficulties in mining, this logging technique is of particular interest.

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Application of borehole imagery in iron ore: examples from ...

Jul 18, 2013  The borehole televiewer is a down-hole geophysical logging device that produces continuous, oriented, 360° images of the drill hole wall. Two types of borehole images are currently being generated at the Mount Whaleback iron ore deposit in Western Australia.

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Mineral - Allied Associates Geophysical GmbH

Allied Associates Geophysical GmbH works in partnership with Robertson Geo to deliver the best solutions and technologies for subsurface data acquisition. ... Iron Ore Density. ... 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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TECHNICAL REPORT ON GEOPHYSICAL INTERPRETATION OF

ON GEOPHYSICAL INTERPRETATION OF AIRBORNE MAGNETIC AND RADIOMETRIC DATA, SOUTHERN CONCESSION and ADDITIONAL SOUTHEASTERN BLOCK, GUINEA Prepared for ... illustrates the southern extent of the Simandou Formation and therefore in the targeting iron ore has been considered as a possible commodity for further exploration. However, the radiometric ...

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THE BASICS OF LOGGING CORE FOR EXPLORATION

The grouper still notes and samples everything mineralized outside the known zones but the bulk of the logging time is in and around known ore zones. Separators pull out every change in core lithology, mineralogy and structure. Their logs are highly detailed and this type of logging is a must for new logging areas without well defined ore zones.

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Borehole Geophysics - USGS

Borehole-geophysical logging can provide a wealth of information that is critical in gaining a better understanding of subsurface conditions needed for ground-water and environmental studies. Geophysical logs provide unbiased continuous and in-situ data and generally sample a larger volume than drilling samples.

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Quantitative Evaluation of Potash Grade and Mineralogy ...

The logging responses of individual minerals comprising the potash-rich intervals in the Prairie Evaporite in Saskatchewan are summarised in Table 1. Quantitative relationships between geophysical well logs and the mineral compositions can be established based on the geophysical log response values of the various minerals.

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Iron Ore The MSA Group

2006 – 2007: Planning, project management and execution of exploration of the Simandou iron ore deposit. Remote sensing, geophysics, mapping, and sampling. Reporting. LIBERIA. 2012: geophysical target generation for DSO targets. 2009: Drilling, logging and sampling of iron dumps. SIERRA LEONE. 2014: Review of iron ore prospectivity in Sierra ...

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Ore Geology Reviews

eral exploration. We use iron ore in Western Australia as a case study, and our selected classifier, a mixture of a Gaussian classifier with reject option, successfully identifies 88% of iron ore locations, and 92% of non-iron ore locations. Parameter optimisation allows the user to choose the suite of variables or parameters, such as

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