المنتجات

Rare-earth and trace elements and hydrogen and oxygen …

This study evaluated the Cretaceous (Campanian–Maastrichtian) kaolinitic sediments of the Ajali/Mamu and Enugu/Nkporo Formations from the Lower Benue Trough of Nigeria. A combined method of inductively coupled plasma–mass spectrometry and isotope ratio mass spectrometry was used to investigate trace and rare-earth element …

Rare earth element patterns in Nigerian coals

The geochemical data enables the proper evaluation of their oil source rock potential and industrial utilization. The patterns of ten rare earth elements (La, Ce, Nd, Sm, Eu, Gd, Tb, Dy, Yb and Lu ...

Rare earth elements study of Cretaceous coals from Benue …

The present study aims to illustrate the prospects of economically recovering rare earth elements (REEs) and carbon nanoparticles (CNPs) from the vast reserves of Cretaceous coal from Nigeria. Hence, the major objective is to investigate the mode of occurrence along with quantifying the economic value of REEs and CNPs that could add …

Rare Earths Statistics and Information | U.S. Geological Survey

The rare earths are a relatively abundant group of 17 elements composed of scandium, yttrium, and the lanthanides. The elements range in crustal abundance from cerium, the 25th most abundant element of the 78 common elements in the Earth's crust at 60 parts per million, to thulium and lutetium, the least abundant rare-earth elements at about 0. ...

Mineralogical, chemical composition and distribution of rare earth …

Average rare earth elements of S.E. Nigeria Claystone compared to world averages. Element S.E. Nigeria Claystone (present study) Bida Claystone ... Therefore, the mineralogy, major oxides, trace and rare earth elements confirms that the claystone is from a felsic source of granitic basement with minor basic contribution. 5.

Geophysical characterisation of rare earth element and …

The pegmatites that host rare earth metals in Nigeria are often characterised by severe albitization and are localised along geologic structures such as fault, fracture, and joints. The Sn – Ta – Nb pegmatites of Nigeria are composed of complex albitised muscovite-quartz, and microcline pegmatites. ...

Evaluation of rare earth elements in groundwater of Lagos …

This study was conducted to evaluate the level of rare earth elements (REE) and the variability of their anomalous behavior in groundwater samples collected from Lagos and Ogun States, Southwest, Nigeria. REE concentrations were determined in 170 groundwater samples using inductively coupled plasma-mass spectrometry, while the …

Rare earths in Nigerian mesozoic granites and related rocks

Nine rare earths have been determined by Instrumental Neutron Activation Analysis (INAA) in syenites and related granitic rocks from the Nigerian younger granite (Mesozoic) Province. The majority of the granites contain dispersed U Nb and vein-controlled Zn Sn mineralization. It is inferred from a study of the chondrite-normalized …

Nigerian rare‐metal pegmatites and their lithological framework

Although Pan-African granites with an age range of 700-520 Ma are dispersed throughout Nigeria, associated rare-metal mineralized pegmatites are known almost exclusively along a southwest-northeast striking belt about 400 km long, which intersects the Jos Plateau tin-fields. A direct genetic link between the rare-metal bearing pegmatites and ...

Geophysical characterisation of rare earth element and …

This study integrated aeromagnetics, aeroradiometric and electrical resistivity survey data to unravel the subsurface geological evidences which are related to rare …

Nigeria | Live Weather Satellite Map | Zoom Earth

Weather forecasts and LIVE satellite images of the Federal Republic of Nigeria. View rain radar and maps of forecast precipitation, wind speed, temperature and more. ICON GFS. Forecast Models. ICON 14 km. GFS 28 km. Map Overlays. Weather Maps : UTC. Zoom Earth Nigeria. Settings. About. Share. Measure Distance. Measure Area. Measure …

Rare Earth Elements: Where in the World Are They?

Rare Earths Elements: Where in the World Are They? This was originally posted on Elements.Sign up to the free mailing list to get beautiful visualizations on natural resource megatrends in your email every week.. Rare earth elements are a group of metals that are critical ingredients for a greener economy, and the location of the reserves for …

(PDF) Trace Elements and Rare Earth Geochemistry of Clay

Trace Elements and Rare Earth Geochemistry of Clay -Rich Soil from Orin Ekiti, Southwestern Nigeria: Implications on Source Rocks and Paleo-Climatic Conditions February 2019 International Journal ...

The Younger Granites | SpringerLink

The Younger Granites of Nigeria in particular are famous for their tin (cassiterite) mineralisation, which is mainly associated with the biotite granites. ... Rare-earth patterns in peralkaline and associated granites. Lithos 7, 15–21. Article Google Scholar Bowden, P., J. E. Whitley and O. van Breemen 1976. Geochemical studies on the Younger ...

HOME | Malcomines

ABOUT Malcomines. Malcomines Minor Metals is the largest independent exporter of non-ferrous minerals and concentrates from Nigeria. We were founded in 2014 with an emphasis on Tin and Tungsten concentrates. Since then we have been on a continuous trajectory of growth and diversification into minerals from Nigeria that have synergies …

Mineralogical, chemical composition and distribution of rare earth

Formation of the Southeasthern Nigeria are LREE-enriched and 58 A.N. Odoma et al. / Journal of African Earth Sciences 102 (2015) 50–60 Table 8 Average rare earth elements of S.E. Nigeria Claystone compared to world averages.

Sources and Level of Rare Earth Element Contamination of …

The average ΣREE values in the industrial, traffic, dumpsite, residential, and remote areas and local soil were 638.26, 282.57, 129.64, 162.77, 95.99 and 143.59 mg g −1, respectively. The average ΣREE in dusts in the industrial area and traffic area was about 4.5- and 2.0-fold higher than the average ΣREE of the soil, upper continental ...

Rare Earth Elements Assessment in the Granitoids of Part of

The Rare Earth Elements (REE) composition of granitoids in and around Ila-Orangun area Southwestern Nigeria was assessed in order to ascertain their potential for possible …

Rare earth and trace element geochemistry of Cretaceous kerogens …

The relationship between rare earth elements (REEs) and the age of Cretaceous kerogens or petroleum source rocks is not known. In this study, kerogen samples isolated from petroleum source rocks from the Cretaceous Orange Basin, South Africa were analyzed for rare earth elements (REEs) and trace elements using …

Rare Earth Elements Occurrence in Nigeria | Ministry of …

Welcome to the Integrated Automation and Interactive Solid Minerals Portal (IAISMP), the GO-TO portal for real time information on Mining Sector in Nigeria. Office:No. 2, Luanda Crescent, off Adetokunbo Ademola Crescent, Wuse II, …

Geochemical Signatures and Mineralization Potentials of …

Abstract. Pegmatites constitute an important lithologic unit in the Precambrian Basement complex of Southern Obudu, Southeastern Nigeria. The primary aim of this study is to present field, petrographic and geochemical data with which to evaluate the rare-metal mineralization potential of the pegmatites.

Rare earth elements study of Cretaceous coals …

The origin and evolution of the Cretaceous Benue Trough (Nigeria). [21] Preston J, Cole P, Craig W, Feather A. The recovery of rare earth oxides from a J African Earth Sci (and the Middle East) 1989;8(2–4):251–82. …

Tectonic Setting of the Syenite Around Igarra, Southwestern Nigeria …

trace and rare earth elements concentrations (the only exception being Zr with values ranging from 4 ppm to 79 ppm). The rocks are relatively enriched in Ba, K, TI, and Sr but depleted in Tc, Nb ...

Rare earths in Nigerian mesozoic granites and related rocks

Nine rare earths have been determined by Instrumental Neutron Activation Analysis (INAA) in syenites and related granitic rocks from the Nigerian younger granite …

What are rare earth elements, and why are they important?

The rare earth elements (REE) are a set of seventeen metallic elements. These include the fifteen lanthanides on the periodic table plus scandium and yttrium. Rare earth elements are an essential part of many high-tech devices. The U.S. Geological Survey news release "Going Critical" explains:

(PDF) Assessment of Trace and Rare Earth Element Levels in …

The trace and rare earth elements' concentration ranged from 0.50 (Mo) to 750 (Ba) and 0.16 (Lu) to 175 (Ce) ppm respectively. The results revealed that the sediments are not that enriched in REEs.

Nigeria: Mineral Policy | SpringerLink

Nigeria is a lower middle-income country with a surface area of 923.8 thousand square kilometers and population of between 140 and 188.686 million ... bulk minerals and what are known as rare earth minerals. More specifically, our most promising mineral assets include gold, iron ore, barite, bitumen, lead, zinc, ...

Trace and rare earth element geochemistry of the black and …

This study focuses on the trace and rare earth elements (REE) geochemistry of the Nkporo and Ekenkpon Shales of the Calabar Flank. The main aim is to infer their depositional environment and the degree of their metal enrichment. The shale samples were analyzed using inductively coupled plasma mass spectrometry. The …

National Integrated Mineral Exploration Project (NIMEP) – Nigeria …

Rapidlink Resource is the contractor for the exploration of rare earth metals within the pegmatite belts of Nigeria. After the company concluded extensive literature review and interpretation of airborne geophysical data and satellite imageries, they selected about 15 priority targets within five (5) blocks for detail exploration.

Chemical speciation and complexation modeling of trace and rare earth

Chemical speciation was carried out on trace and rare earth elements on trace and rare earth elements data on water samples in Oban Massif and Mamfe Mbayment southeastern Nigeria. Product moment correlation showed significant correlation at r>0.7 between REEs Pr and Nd, Pr and Lu, Sm and Nd, Sm and Pr, Tb and Nd, Tm …

Rare Earths Reserves: Top 8 Countries

7. United States. Reserves: 2.3 million MT. While the US reported the second highest output of rare earths in 2022 at 43,000 MT, the country takes the sixth top spot in terms of global rare earths ...

Rare Earth Elements Assessment in the Granitoids of Part …

The Rare Earth Elements (REE) composition of granitoids in and around Ila-Orangun area Southwestern Nigeria was assessed in order to ascertain their potential for possible exploitation. Detailed ...

(PDF) Rare Earth Deposits of Africa

E-mail: [email protected]. 2 School of Geosciences, University of the Witwatersrand, Johannesburg, South Africa. E-mail: [email protected]. Rar e Earth Elements (REE) are a group of chemically ...

Rare earth elements: A review of applications

Rare-earth elements (hereinafter referred to as REE) are a group of seventeen chemical elements in the periodic table, in particular the fifteen lanthanides as well as yttrium and scandium as defined by the International Union of Pure and Applied Chemistry (IUPAC). ... Thomas et al. (2014) have indicated that countries like Russia and Nigeria ...

Sources and Level of Rare Earth Element Contamination …

Rare earth element (REE) composition of atmospheric dust has recently been used to trace potential sources of dust pollution. Objective. The present study aimed to determine the …

Rare Earth Elements of Ajali Sandstone, SW, Anambra …

Department of Geology, University of Benin, Benin City, Nigeria *Corresponding Author's Email: ilevbaremartins777@gmail; Tel: +234 803 699 3220 ABSTRCT: The Ajali Sandstone, South-western, Anambra Basin, was studied for …

Rare Earth Elements Analysis in Nigeria Bauxite Deposits: …

This study aims to assess the concentration, distribution and recovery prospects of rare earth elements (REEs) in Nigerian bauxite deposits (Plateau and Nassarawa states) using x-ray diffractometer (XRD) and Atomic Absorption Spectroscope (AAS). The significance of rare earth elements in various industries, such as electronics and renewable ...

Geochemistry of rare earth elements in groundwater from …

Water samples from different aquifers in Gboko area, Lower Benue Trough, Nigeria, were evaluated to determine the quality, hydrochemical facies and the concentrations and fractionation patterns of rare earth elements (REEs) in the groundwater. The results revealed that the groundwater is contaminated with factors emanating from …

Rare Earth Element Geochemistry and Abundances in …

The Rare Earth Elements (REE) composition of granitoids in and around Ila-Orangun area Southwestern Nigeria was assessed in order to ascertain their potential for possible exploitation.