A Review of Gemstone Occurrences, Provenance, and Origins …
Tourmaline is the most popular and valuable gemstone in Nigeria mainly because of its bright and beautiful colors, in addition to its multicolored varieties, Tourmaline is mined from the weathered rock and alluvials associated with the Older granite pegmatite in several localities across the country, including Oyo State (Idoko, Ofiki, Komu, and ...
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Improvement of Asphalt Production Investment in Nigeria …
Oyo state is an inland state in south-western Nigeria located on 8 ° 7'10.56" Northing and 3 ° 25'10.56" Easting, with its capital at Ibadan. It is bounded in the north by Kwara State ...
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Gemstones of Nigeria: An Overview of Their …
There is an urgent need for government reforms of artisanal mining and active regulation of the gemstone industry so that all the loopholes and leakages in the gem supply pipeline and value chain ...
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States tighten noose on mining as Ibadan explosion death …
The Oyo State House of Assembly at its plenary yesterday, disclosed the identity of the person allegedly behind the explosion as Sawani Yusuf (Sawane Youssouf), who is the President, Oyo State ...
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Determination of Location and Depth of Mineral Rocks at …
Oyo State is composed of the migmatite-gneiss, quartzite, calc-silicate rocks, biotite-hornblende schist, and amphibolites. Minor rock types are found within these gneisses …
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Inside the explosive illegal mining business in Nigeria – …
National President, Miners Association of Nigeria, Dele Ayanleke, in this exclusive interview, speaks on Tuesday's explosion in Ibadan, Oyo State capital, giving deep insight into issues ...
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(PDF) GEOCHEMISTRY, WEATHERING INTENSITY AND …
the dumpsites at Ibadan, Oyo State, Nigeria were studied. The chemical compositions of the samples showed a r elatively enriched SiO 2 (44.56-67.48) Wt.
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Geology and Mineral Resources of Oyo State, …
Oyo State lies in the south -western part of Nigeria. Underlain by three lithological units of the crystalline basement complex, comprising: (i) Migmatite -Gneiss Complex (quartzite, gneissic rocks); (ii) Low to
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Granite Deposits in Nigeria with their Locations …
Granite/Quarry Mining and Business Operation in Nigeria. Granite stone is the amount commonly mined natural resource, and one of the widely used solid minerals in Nigeria due to its use in building, civil engineering and …
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Solid Minerals Development Agency – Oyo State …
Oyo state currently has 14 granite quarrying companies out of which 12 are operational. The quantity of the proven granite reserve is presently pegged at approximately 220 million tones. It has also been established that 80% of the …
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OYSIPA- Oyo State Investment And Public Private …
Oyo State has the largest Marble/Dolomite deposits in Nigeria and comes second in its Granite reserves. In the same vein, it also has the 2nd largest Gemstone concentration in Nigeria and …
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Marble, Kunzite Powder Mining In Igbeti: Genesis Of …
They shot sporadically in the air, picked their target and drove out of the town heading towards Saki, another popular town in the Oke-Ogun axis of Oyo State. Prior to this incident, there have been reports of kidnapping and robbery along mining sites in …
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Comparative analysis of hydraulic drop ball and secondary …
Free Online Library: Comparative analysis of hydraulic drop ball and secondary blasting technique for secondary breaking in aggregate quarries. A case study of associated granite industry, Igboora, Oyo State, Nigeria. by "International Journal of Applied Engineering Research"; Engineering and manufacturing Noise control Case studies Methods Sand, gravel …
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Assessment of radiological safety of abandoned tantalite …
Times[4] reported 1200 abandoned mining sites in Nigeria and these sites if radiologically safe, may be used for building companies that will employ the youth in the
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Experimental Characterization of Physicochemical and …
site in Olowu in Egbeda Local Govt. Area, Ibadan, Oyo State, Nigeria to evaluate its potential as a raw material for building and categorise its application in the construction industry. The study
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(PDF) Tin Mineralisation in Nigeria: A Review
Nigeria is endowed with vast but largely untapped solid mineral resources including tin ores (cassiterite and stannite). Tin, which is one of the oldest metals known to man, is invaluable in a ...
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Geology and Mineral Resources of Oyo State, …
Geology and Mineral Resources of Oyo State, South Western Nigeria. Oyo State lies in the south -western part of Nigeria. Underlain by three lithological units of the crystalline basement complex, comprising: (i) Migmatite …
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Oyo Seals Illegal Mining Sites – Independent Newspaper Nigeria
IBADAN – The Oyo State Mineral Development Agency has sealed some mining sites, operating without consent letters and community development agreement in the state.. The Director General (DG) of the Agency, Mr Abiodun Oni, disclosed this while addressing shortly after the exercise in Ibadan. Mr Abiodun Oni stated that the decision was to restore order by …
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Solid Mineral Deposits and Mining in Nigeria:
This is a reflection of the surge in coal exploration and usage as power source for mining and 10 Achievers J. Sci. Research Figure 6: Solid minerals production in 2016 Figure 5: Contributions of various solid minerals (by value) in Nigeria 2016 Figure 7: Comparative analysis of production for two leading solid minerals Analysis of state-by ...
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Geology and Mineral Resources of Oyo State, South Western …
Prior discoveries make the northern portion of Oyo State to be predominantly underlain by complex pegmatite, which harbour a lot of gemstones ranging from Aquamarine, Tourmaline, …
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Economic assessment of granite quarrying in Oyo State, Nigeria
This study examines the economic contribution of granite quarrying in Oyo State, South-Western Nigeria. Fourteen granite quarrying companies exist in the state, out of which twelve are operational.
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Determination of Location and Depth of Mineral Rocks at
The results of these geophysical methods show that there are rocks with high magnetic susceptibility and conductivity values from the centre towards the eastern region of the study area and low magnetic susceptibility and conductivity values at the western region. ... South Western Nigeria," Journal of Mining and Geology, vol. 28, no. 2, pp ...
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(PDF) Determination of Location and Depth of Mineral Rocks …
Magnetic and resistivity geophysical methods were used to investigate the location and depth of mineral rocks at Olode village, Oyo State, Nigeria. 80 magnetic data points were acquired in 10 profiles using G-816 proton precession magnetometer with 10 m spacing in between each profiles and 10 m stations interval.
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Assessment of Lithium Ore Deposits in Nigeria: A Study …
(2019), there are lithium deposits in Kogi, Nasarawa, Ekiti, Kwara, Cross River, Oyo, Plateau, and a few other states in Nigeria. This result further proves that these state exhibit high potential for locations with lithium ore but at present, there are no mining or processing facilities for lithium in the country. The country has a
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(PDF) Natural radionuclide transfer from soil to plants in …
The mean value of the AC of potassium obtained for this study is higher than that obtained in Oyo state, Nigeria [20], Delta State, Nigeria [21,22,23]. However, the mean value in Uta farm is ...
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Granite Deposits in Nigeria with their Locations and Uses
Up till recent time, Nigeria mines and export granite stones, but they are not in the list of widely recognized global granite/quarry export countries. Nigeria Quarry Mining and Processing Companies. There are many quarrying mining and processing companies in Nigeria, West Africa. Some of these companies are CiBi Nigeria Limited, Stone World ...
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Environmental impact assessment of coal mining at Enugu, Nigeria
Gumpti Kainji lake Cross River Old Oyo Chad Basin Yankari Kamuku Okomu 6,670 5,341 3,720 2,512 2,258 2,244.1 1,127 1,127 Source: Mfon et al (2014) Major National Parks in Nigeria and Size 8000 7000 6000 5000 4000 3000 2000 1000 0 GUMPTI KAINJI LAKE CROOS RIVER OLD OYO CHAD BASIN Size(km2) YANKARI KAMUKU OKOMU Figure 1 Major causes of ...
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RADIATION RISK ASSESSMENT IN MINING SITE …
This study aims to measure the activity concentrations of 40 K, 238 U, and 232 Th radionuclides at various mining sites of Paago, Iseyin local Government, Oyo state, Southwestern Nigeria using a ...
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(PDF) Optimization of Blasting Parameters Using
Geological map of Ratcon and NSCE granite quarries in Ibadan, Oyo state extracted from the geologi- cal map of Nigeria. Blasting variables obtained from NSCE and Ratcon. Computation for model 1.
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Mining of Mineral Deposits A study on the physical and …
Purpose. To investigate the physical and mechanical properties of a granite outcrop for a quarry at Onikoko community in Oyo State, South-Western Nigeria. Methods. …
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