geophysical exploration of iron ore in nigeria pdf

Mining industry of Nigeria - Wikipedia

Iron Ore. Nigeria has several deposits of iron ore, but the purest deposits are in and around Itakpe in Kogi State. The National Iron Ore Mining Company was founded in 1979 and given the mission to explore, exploit, process, and supply iron ore concentrate to the Ajaokuta Steel Company (ASCL) in Ajaokuta and Delta Steel Company (DCL) in Aladja ...

Geophysical Exploration for Iron Ore in the Middleback ...

Iron ore in the Middleback Range area has a density and susceptibility contrast with adjacent rocks, and gravity and magnetic methods are applicable to exploration for it. The gravity method is satisfactory whether the ore mineral is hematite, magnetite, or limonite; the magnetic method is suitable for detecting ores which contain magnetite, such as some...

(PDF) Geophysical prospecting for iron ore deposit around ...

Mar 03, 2016· PDF | Ground magnetic and electrical resistivity survey were undertaken to investigate the occurrence and geometry of iron ore deposit around Tajimi village, Lokoja, North-Central Nigeria. The ...

(PDF) GEOPHYSICAL TECHNIQUES AND THEIR APPLICATIONS IN ...

Historically, geophysical technique (magnetic) was first used in Sweden in the 17th century for prospecting iron ore (Reedman, 1979). Geophysical techniques gained more acceptability in the early 1923 (Gupter, 1986) because of exploration for crude oil.

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

minerals Article Near Real-Time Classification of Iron Ore Lithology by Applying Fuzzy Inference Systems to Petrophysical Downhole Data Maria C. Kitzig 1,* ID, Anton Kepic 1 and Ashley Grant 2 1 Department Exploration Geophysics, Western Australian School of Mines, Curtin University, Bentley 6102, WA, Australia; [email protected]

Geophysical investigation of banded iron ore ...

Sep 01, 2016· The electrical resistivity and IP methods helped in discriminating between the iron ore and the host rock. The results showed that the banded iron formations (BIFs) were characterized by spherical analytic signal anomalies ranging from 0.035 nT/m to 0.06 nT/m within the granite gneiss and magnetic susceptibility of 0.007-0.014 SI.

(PDF) Exploration for iron ore in Agbado-Okudu, Kogi State ...

PDF | This report details the result of geophysical exploration for iron ore; which involved vertical magnetic intensity (∆Z) and gravity measurements, to delineate the geometry and depth extent ...

Seismic Exploration of Ore Deposits in Western Australia

Geophysics) sponsored by the state Government and supported by industry via targeted research grants. The research program has diversified in the types of mineral deposits to be targeted (Gold, Nickel, Diamonds, Uranium, and Iron Ore) and is now focused on advancing in general the application of seismic methods for mineral exploration in a hard

Ore Geology Reviews - EarthByte

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

AN OVERVIEW OF MAGNETIC METHOD IN MINERAL …

beginning of geophysics, the publication of the examination of iron ore deposits by magnetic measurement by Thalen in 1879 marked the beginning of applied geophysics [2]. The first magnetic phenomena to be observed were associated with rough fragment of lodestone (an oxide of iron)

Iron Ore Exploration_Geology and Geophysics Investigation ...

Iron Ore Exploration_Geology and Geophysics Investigation - Download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. A general information about type and exploration methods to determine the iron ore prospect

Geophysical Exploration of Iron Ore Deposit in Kimachia ...

magnetite as the main ore in the geological formations. Kimachia iron can be classified as a sandstone deposit. The origin of the ore has not been established but, is obviously none magmatic. It is however possible that the ore deposits, like most iron ore deposits in the world, is formed from early Archean eon to late Precambrian.

Exploration geophysics - Wikipedia

Exploration geophysics is also used to map the subsurface structure of a region, to elucidate the underlying structures, spatial distribution of rock units, and to detect structures such as faults, folds and intrusive rocks. This is an indirect method for assessing the likelihood of ore …

URANIUM EXPLORATION IN NIGERIA The Journey so far

URANIUM EXPLORATION IN NIGERIA ALEX. NWEGBU DIRECTOR GENERAL NIGERIAN GEOLOGICAL SURVEY AGENCY ... Iron ore in Lokoja Gold in Birnin Gwari ... Coverage on Airborne Geophysical Survey . Survey Outputs: Types of Geoscience Data used by Industry 31

Exploration for iron ore in Agbado-Okudu, Kogi State, Nigeria

Abstract. This report details the result of geophysical exploration for iron ore; which involved vertical magnetic intensity (∆Z) and gravity measurements, to delineate the geometry and depth extent of the deposit and acquiring quantitative and qualitative information for pre-drilling purposes in Agbado-Okudu.

Geophysical Surveying Using Magnetics Methods …

Geophysical exploration using measurements of the earth's magnetic field was employed earlier than any other geophysical technique. von Werde located deposits of ore by mapping variations in the magnetic field in 1843. In 1879, Thalen published the first geophysical manuscript entitled The Examination of Iron Ore Deposits by Magnetic Measurements.

(PDF) MINERAL PROSPECTING AND EXPLORATION IN NIGERIA ...

The various factors involved with mineral exploration processes are therefore:- 1. Area Selection: To find mineral ores cheaply, safely and quickly, a proper area should be selected. It is not necessary that the area in which gold mining is possible will be a suitable area for iron-ore mining.

Application of airborne magnetic data to mineral ...

Keywords: Mineral exploration, Iron ore, Subsurface, Filters, Spectral analysis, Faults and Deposit. INTRODUCTION The early geophysical exploration for iron ore in Nigeria began in 1963 when the Geological Survey of Nigeria (GSN) with the aid of the Canadian Air Service limited carried out an aeromagnetic survey of some parts of the country.

(PDF) GEOPHYSICAL METHODS: ECONOMICAL TOOLS IN …

Geophysical prospecting for iron ore deposit around Tajimi village, Lokoja, North–Central Nigeria. De Gruyter Open. 63, 151-160 [8] Bayrak, M., (2002). Exploration of chrome ore …

GEOPHYSICS FOR MINERAL EXPLORATION Prepared for Matty ...

high concentrations of magnetite, potentially as sources for iron ore. To help visualise the distribution of values, colour is employed. In geophysical displays, deep blues denote the lowest values, while reds and purples identify the highest readings. A scale bar is usually included to show the range of values.

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 …

Geophysical and Hydro-Physicochemical Analysis of ...

Geophysical and Hydro-Physicochemical Analysis of Groundwater Quality at Gbede Mining Site, Ogbomoso, South West Nigeria. Ayobami Ismaila Ojoawo, Adeniran Gbadebo Seun Department of Physics, University of Ibadan, Nigeria. Abstract: A research on the assessment of groundwater quality was conducted around old mining site at Gbede area, Ogbomoso, Oyo

Multi-Physics Location: Hamersley Basin, IRON ORE - CGG

BIF enrichment iron ore deposits, thereby fast-tracking the explora-tion process. IRON ORE EXPLORATION A FALCON airborne survey combining airborne gravity gradiometry and magnetometry has been flown over the Hamersley Basin with the aim of identifying iron ore target areas in a fast and effective way where ground access is difficult.

Geophysical Methods of ration and their Application w Jersey

GEOPHYSICAL METHODS OF EXPLORATION AND APPLICATION TO GEOLOGICAL PROBI.EMS IN NEW JERSEY GEORGE P. WOOLLARD PART I GEOPHYSICS DEFINED AND ITS APPLICATIONS DESCRIBED _tNTRODUCTION Although the State of New Jersey has no oi_ciat program of geophysical investigations of geological problems, considerable

Exploration Geology - SRK

exploration success are key drivers for continued investment in the exploration industry. Exploration for mineral deposits – global trends No. 47 SRK Consulting's International Newsletter Expenditure on exploration in Australia, for example, reached a peak in 2008, which reflects a massive increase in exploration for iron ore resources and,

109 Received:October 1, 2015 DOI: 10.1515/rmzmag-2016 …

jor role in the deli neation of iron ore depos-its, and exploration for such deposits based on their magnetic effects represents the earliest use of geophysics in mineral exploration [7, 8]. The electrical resistivity and induced polariza-tion (IP) methods also have their application in mineral exploration [9, 10]. The IP method

CSIRO PUBLISHING | Exploration Geophysics

Exploration Geophysics is published by CSIRO PUBLISHING on behalf of the Australian Society of Exploration Geophysicists. Papers published report the results of significant case histories and relevant original research in geophysics, with emphasis on the Australian and similar environments.

Geophysical Methods & Applications

Geophysical Methods & Applications SubSurface Surveys & Associates, Inc., established in 1988, specializes in near-surface geophysics and utility locating services and is dedicated to establishing strong client relationships. SubSurface Survey's extensive education and experience

Geochemical Prospecting - seas.upenn.edu

geological and geophysical surveys. See also: Geophysical exploration History Many fundamental principles of geology and chemistry were known in antiquity, and ... as differentiation proceeds, there is an overall decrease in iron, magnesium, calcium, and titanium in the rocks combined with an increase in silicon, ... ore discovery utilizing ...