REE IN SOUTH AFRICA/SUID-AFRIKA

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Die Steenkampskraal myn gaan terug tot 1952 toe dit begin myn het deur Anglo American tot ongeveer 1963.   Daar is ‘n geskiedenis rondom hierdie myn en aan wie die minerale regtig behoort.   Suid-Afrika was en is nooit ‘n bankrot land nie, maar dis die burgers wat rot en kaal besteel word deur diegene wat die land beheer, regeer en manipuleer en maak of dit ‘n bankrot land is.   Die Boere republieke is identies dieselfde hanteer, met die sioniste agter die skerms aan die werk.

About The Mine | Steenkampskraal Rare Earths Mine

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Skaars elemente wat duur is, want alles word in tegnologie aangewend.    Die besit van hierdie myne, is nie BOERE wat die grond besit nie, omrede dit groot besighede en organisasies is wat dit gemyn het (Anglo American).

Thorium - Steenkampskraal Rare Earths Mine

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https://www.steenkampskraal.com/the-mine-overview/

The current explored and delineated orebody reports a NI 43-101 compliant Mineral Resource Estimate that indicates the presence of 665,000 tonnes of ore at an average grade of 14.5% and a total rare earth content of 86,900 tonnes with expansion potential at depth and along strike.

About The Mine | Steenkampskraal Rare Earths Mine

Kyk die Beeldmateriaal

https://www.youtube.com/watch?v=s0ZXtjM7O2s

https://www.youtube.com/watch?v=NZWA7MP61ps&t=7s

Daar is heelwat ander beeldmateriaal wat gesien kan word.

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The Steenkampskraal Mine is located in the Western Cape province of South Africa. It is an existing mine that was operated by Anglo American Corporation from 1952 to 1963.

In addition to the mining right area of 474 hectares, the company also owns three surrounding farms with a total area of about 7,000 hectares.

The current explored and delineated orebody reports a resource of about 665,000 tonnes at an average grade of 14.5% Total Rare Earth Oxides (TREO) for a total of 86,900 tonnes contained TREO.

The current exploited and delineated orebody reports a reserve of about 799,700 (including dilution) tonnes at an average grade of 8.68% Total Rare Earth Oxides (TREO) for a total of 69,400 tonnes contained TREO.

The total quantity of neodymium in the mine is 15,600 tonnes at a grade of 2.58% Nd2O3.


There is great potential to further increase the mineral resource beyond the current known resource area through an exploration programme at depth and along strike.

Low Capex – Much of the work and the investment to bring the mine into production has already been done.

Low Opex – Shallow mine with an average depth of 100m within the current resource/reserve area. The high grade of 14.5% means that, on average, including dilution, 12 tonnes of ore will yield 1 tonne of rare earths and the associated cost of sales will remain low relative to other rare earth operations.

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Steenkampskraal has a National Instrument 43-101 compliant Technical Report with both a Mineral Resource Estimate and a Mineral Reserve Estimate.

The Department of Mineral Resources and Energy (DMRE) issued a New Order Mining Right for the Steenkampskraal mine which is valid until 2030 and which is renewable.

The National Nuclear Regulator (NNR) issued a Certificate of Registration to Steenkampskraal which allows it to mine, process, transport and store naturally-occurring radioactive materials.

The DMRE approved Steenkampskraal’s Mining Works Programme and Environmental Management Programme.

Steenkampskraal has completed the mineralogical characterisation of the ore and the metallurgical test work is continuing to further enhance the value of the mine.

The mine shaft and decline headgear has been partly equipped and is currently being refurbished.

The Department of Water and Sanitation has issued a Water Use Licence which satisfies the water requirements for the entire operation.

Boreholes have been drilled that can provide sufficient water for the mine’s requirements.

A reverse osmosis water treatment and desalination plant has been installed.

Office buildings have been installed and much of the infrastructure is now in place.

rare earth mine

Bora Mining Services (BMS) has acquired a share in the Steenkampskraal Monazite Mine (SMM) for an undisclosed sum as a strategic partner. The partnership enabled operations to commence at the beginning of 2024 to bring the mine back into production during early 2025. BMS will provide the capital, staffing and equipment to commence with the refurbishment, preliminary construction work and mining contract services.

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Steenkampskraal mine CEO Graham Soden and BMS owner and CEO Enock Mathebula.   

“Steenkampskraal offers significant investment opportunities as one of the highest-grade rare earths resource in the world at 14.5% contained total rare earth oxides (TREO) and yttrium oxide on average, greater than 90 g/t gold equivalent,” he says.
“Mathebula is a successful entrepreneur who has developed a group of companies focused on actively supporting the mining industry as contractors for underground, rehabilitation and surface mining  operations. His contribution through the Enock Mathebula Foundation is immense with the provision of numerous social upliftment, training and mentoring programmes,”
Steenkampskraal mine CEO Graham Soden adds. As part of the production strategy,  Obsideo Consulting will be contracted on a hybrid build, own, operate, transfer system to produce monazite concentrate. Initially, this will compromise 30% TREO in Phase 1a. This will progress to producing monazite concentrate containing 50% TREO in Phase 1b.

https://www.miningweekly.com/article/bora-buys-into-steenkampskraal-as-strategic-partner-2024-02-07

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The mine has one of the highest grades of rare earth elements (REE) in the world. It has a currently explored and delineated Mineral Resource Estimate (MRE) of 665,000 tonnes at an average grade of 14.5% contained total rare earth oxides (TREO) for a total of 86,900 tonnes contained TREO including Y2O3.

The Mining Right held by Steenkampskraal Monazite Mine Proprietary Limited (SMM), a subsidiary of Steenkampskraal Holdings Limited (SHL), will consist of two separate but integrated activities:

  • Mining from an existing underground mine and surface tailings and rock dumps; and
  • The production of a monazite concentrate, mixed rare earth carbonate and Thorium in various stages.

The mine was awarded a South African New Order Mining Right (MR) under the MPRDA on 2 June 2010. This allows mining for 20 years until 1 June 2030 and is renewable. The mine also holds a Resource Reserve Classification Certificate of Registration Number 23 (CoR-23) granted by the South African National Nuclear Regulator (NNR).

This allows the company to mine, process, transport and store naturally occurring radioactive material.

steenkampskraal location

Steenkampskraal is a high-grade, hard-rock, monazite vein deposit with a resource that has recently been increased by extensive drilling work, as reported in the mine’s NI 43-101 compliant Mineral Resource Estimate. The underground in-situ average grade is 14.5%. There are also surface tailings stockpiled as a result of previous mining and processing operations with a grade of about 7% TREO.

Steenkampskraal Monazite Mine (SMM) prepared an EMP that was approved by the Department of Mineral Resources and Energy(DMRE) in 2010. This EMP forms an integral part of the Mining Right and subsequently updated.

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The Steenkampskraal mine contains 15 rare earths, including those that are used to make electric motors for electric vehicles and wind turbines

The current explored and delineated orebody reports a NI 43-101 Mineral Resource Classification containing approximately 15,630 tonnes of neodymium, 4,459 tonnes of praseodymium, 867 tonnes of dysprosium and 182 tonnes of terbium.

The combined grade of these four important rare earths is 3.49%, which is higher than the total rare earth grades in most rare earth deposits.

https://www.steenkampskraal.com/

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STL Nuclear is a privately owned company with a vision to provide clean, sustainable and safe energy to the world through the development and commercialization of Thorium as a fuel source.   Thorium as a nuclear fuel is becoming increasingly important to meet the world’s energy demands.

Who is STL?

STL Nuclear is a privately owned nuclear technology company based in the Northern suburbs of Pretoria whose core focus is directed towards Generation IV nuclear reactor technology.

STL Nuclear have built up a core team of technical specialists (fuel & reactor) who have successfully risen to the challenge of designing and building nuclear reactor and fuel plant technologies and have to date completed 10 years of engineering on a 100MWth high-temperature modular gas-cooled reactor (HTMR) with the objective of providing cleaner, safer, sustainable and affordable nuclear power and desalination.

STL Nuclear were contracted by a US firm to develop first of a kind HTR fuel elements based on the U.S. Department of Energy (DOE) Advanced Gas Reactor (AGR) program for UCO TRISO fuel. The fuel data design package as well as a pilot plant for fuel production. This fuel development project is being commissioned by the U.S. company to accelerate the development of an innovative new nuclear technology.

STL Nuclear are also currently busy with a TRISO fuel plant design to fabricate fuel compacts for a European Client.

In addition, STL Nuclear are busy with a feasibility study to supply another TRISO fuel pilot plant to a US customer to produce fuel compacts.

STL Nuclear Owns:

A Basic design of the HTMR100 (100 MW thermal, 35 MW electrical) pebble bed reactor. The HTMR-100 is a high temperature gas-cooled reactor (HTGR) with a thorium or uranium-based fuel cycle and a detailed design of a laboratory, pilot and industrial scale fuel manufacturing facilities producing pebble and compact type fuel.

STL also owns a facility where fuel production equipment is manufactured, erected, assembled and commissioned. The Laboratory can also demonstrate Kernel manufacture using surrogate materials and investigate graphite powder properties for pebble or compact manufacture. The Laboratory also serves as a process development area to develop new and innovative ways of improving the manufacturing steps for TRISO fuel towards commercialisation.

The thorium-based High Temperature Gas cooled Reactor (HTGR) technology was chosen for the HTMR-100 NPP due to the following considerations: The HTMR-100 reactor is intrinsically safe because its core is meltdown-proof. This characteristic ensures that the HTMR-100 NPP can withstand a Fukushima-type incident.

The HTMR-100 reactor addresses the risk of nuclear weapons proliferation due to the fact that: its thorium fuel cycle does not produce plutonium as used in nuclear weapons; it can reach high burn-up rates which fully utilizes fissile material in the reactor The HTMR-100 reactor will produce less hazardous nuclear waste, which benefit waste management problems.

The HTMR-100 concept is economically attractive compared to other nuclear technologies due to its advanced design features: Modularity reduces construction period; System standardization and design simplicity create upstream economies of scale; and Reduced number of required safety functions/systems reduces costs.

Security of fuel supply is guaranteed, since thorium is 4 times more abundant than uranium as mentioned above. The HTMR-100 NPP is a CO2 emissions free source of base-load power with high availability and suitable for distributed generation.

Steenkampskraal Thorium Limited already owns the right to significant thorium reserves in South Africa and therefore aims to commercialise a thorium-based High Temperature Gas Cooled Reactor (HTGR).

Previous studies showed that the smallest economically viable HTGR- NPP, is 70 to 100 MWth. For this reason, the HTMR-100 NPP was designed as a 100 MWth unit, with corresponding electricity production of 35 MWe. In addition, the majority of the electrical grids in the world today cannot accommodate large power sources, which caused the demand for smaller power sources to increase significantly. The HTMR-100 is therefore ideally suited to be used as a standalone plant or in groups of module (multi-module plant). Initially the HTMR-100 NPP will probably serve a niche market where small to medium power sources are required, such as small communities or remote industries like mines or smelters, etc.

The design philosophy of the HTMR-100 NPP can be described as simplification and optimization of proven technology within acceptable safety criteria. The designers therefore aimed to lower plant costs and improve reliability rather than optimizing the thermal efficiency of the process. The European nuclear safety principles in combination with USA requirements were provisionally adapted as design basis for the HTMR-100 NPP.

The following design criteria have been followed in the HTMR-100 NPP design:

  • Simplicity
  • Multiple defence levels
  • Factory manufacturing as far as practicable/possible
  • Simple operation
  • Ease of maintenance
  • Safety design for external events such as earthquakes, airplane crashes, etc.

The HTMR-100 NPP project aims to design, license and construct the first plant in the next 5 years.

https://thorium100.com/

The thorium-based High Temperature Gas cooled Reactor (HTGR) technology was chosen for the HTMR-100 NPP due to the following considerations: The HTMR-100 reactor is intrinsically safe because its core is meltdown-proof. This characteristic ensures that the HTMR-100 NPP can withstand a Fukushima-type incident.

The HTMR-100 reactor addresses the risk of nuclear weapons proliferation due to the fact that: its thorium fuel cycle does not produce plutonium as used in nuclear weapons; it can reach high burn-up rates which fully utilizes fissile material in the reactor The HTMR-100 reactor will produce less hazardous nuclear waste, which benefit waste management problems.

The HTMR-100 concept is economically attractive compared to other nuclear technologies due to its advanced design features: Modularity reduces construction period; System standardization and design simplicity create upstream economies of scale; and Reduced number of required safety functions/systems reduces costs.

Security of fuel supply is guaranteed, since thorium is 4 times more abundant than uranium as mentioned above. The HTMR-100 NPP is a CO2 emissions free source of base-load power with high availability and suitable for distributed generation.

https://www.thorium100.com/about-us.html

Die volgende ou lêers maak nie meer oop oor Steenkampskraal myn nie.   Thorium

https://www.revolvy.com/page/Steenkampskraal-mine
http://www.thorium100.com/SMM.php


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Rare Earth Elements

Greenland China

Shenghe, Chinese and REE

China and Greenland

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2017

Steenkampskraal Holdings has once again confirmed the presence of extremely high grades of thorium and rare earth elements at its project close to Vredendal on the west coast of South Africa.   According to Trevor Blench, chairperson at Steenkampskraal, the thorium (Th) and rare earth  elements (REEs) are the highest grades in the world.

At an average of 2.14% Th and 14.4% REE, with REEs in some areas as high as 45% TREO + Y2O3 [total rare earth oxide + yttrium oxide], this is an impressive deposit.      The project was successfully exploited for thorium in an underground operation by Anglo American between 1952 and 1963.

The Steenkampskraal mine holds the full spectrum of rare earths, including high-value neodymium used in the manufacture of magnets, computers, and hard drives. Typically, a 3MW wind turbine uses about 500kg of neodymium and 100kg of praseodymium in the magnets for its motors. Lanthanum is used in NimH hybrid batteries with cerium and there is potential demand for over 100 million kilograms of rare earth metals for hybrid and fully electric vehicles over the next few years. A typical hybrid car uses 10kg of rare earth metals. Hybrid electric motors use dysprosium and terbium, and their component sensors use yttrium.

Total rare earth oxide deposits found around the world have an average in situ grade of between 1% and 3%. When deposits are mined, the grade is even less because the in situ mineralised material is mixed with material (waste rock) that has little or no value (the mining cut). Hard rock deposits, such as the monazite deposit at Steenkampskraal, generally have higher grades compared to beach sand deposits.

Rare earths in India are generally contained in sand deposits, while in China they are found mainly in dolomite marble, which is also associated with iron ore. When rare earths are contained in sand deposits, the extraction process is more difficult and costly when compared to rare earths deposits that are associated with monazite mineralisation.

In most other deposits in the world, the monazite mineralisation is disseminated within the deposit (in other words, the grade is diluted), whereas at Steenkampskraal the monazite (REE) mineralisation is concentrated in a reef zone from 0.02m to over 10m thick, with an average thickness of about a metre, making it easier to separate and extract the monazite.

Grades are dependent, among other factors, on the minerals in which the rare earths are contained and how the minerals are distributed within the host rock. Because of Steenkampskraal’s high grade, it is unnecessary to extract huge amounts of monazite-containing material and, therefore, large crushing vessels are not required.

Another feature of the Steenkampskraal deposit is the size of the monazite grain carrying the rare earths. The grain is larger than normal, at about 250–300 microns in diameter. This means that the monazite requires less milling, further reducing costs. Most competitors need to mill their monazite down to 50 microns. This increases costs and requires large amounts of energy. Copper, for example, needs to be milled to 75 microns.

In addition, at Steenkampskraal, 59% of the mass of the monazite is total rare earth oxides. As a result, when milling, less dust is created because of the high density, further reducing costs and lessening any negative environmental impact. The chemical treatment process is also less complex, resulting in reduced capital and operational expenditure.

In terms of the mine’s thorium deposits, the latest mineral resource estimate indicates the presence of 11 700 tons of thorium in the Steenkampskraal deposit. In October 2014, the Colorado School of Mines published a report entitled Thorium: does crustal abundance lead to economic availability. The report considers the possibility that thorium could be used as a nuclear fuel and that the demand for thorium could eventually rise to nearly 4 000 tons per year.

The report includes studies of where this thorium would be sourced and states that the Steenkampskraal mine in South Africa will be the lowest-cost producer of thorium in the world, with an estimated production cost of USD3.56 per kilogram. The second cheapest producer has an estimated production cost of USD7.98 per kilogram, and the third cheapest with a production cost of USD8.01 per kilogram.

The report indicates that the three lowest-cost producers could together produce about 3 718 tons of thorium per year, which is about the quantity that the report indicates could be required by the nuclear industry in the future.    Steenkampskraal expects to play an important role in the development and introduction of thorium as a nuclear fuel, was stated.

Blench adds that Steenkampskraal is designing a small, modular, low-cost, helium-cooled thorium pebble-bed modular reactor, known as the HTMR100. “It will use the thorium mined at Steenkampskraal and Steenkampskraal’s locally designed thorium/uranium pebble fuel. This is ideal for areas, such as parts of Africa, that are experiencing acute power shortages with underdeveloped or non-existing power infrastructure,” says Blench.

Steenkampskraal is designing the factory to produce the pebble fuel for the HTMR100. The fuel presents no risk of meltdown, such as that experienced at Fukushima.

Blench says that Steenkampskraal’s vision is to be the building block and provider of the foundation of a rare earths supply chain, independent of China. This strategy covers four key areas: mining thorium and rare earths at Steenkampskraal; designing a safe thorium-based nuclear reactor; designing the thorium/uranium pebble fuel for this new HTMR100 reactor; and testing and supplying safe thorium/uranium and thorium/plutonium pellet fuel for existing light water reactors(LWRs), of which there are about 350 operational worldwide.

http://www.miningafricaonline.co.za/index.php/mining-features/explorations-projects/3245-steenkampskraal-confirms-high-grade-thorium

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By Trevor Blench, Chairman of Steenkampskraal Holdings, which owns the Steenkampskraal rare earths mine in the Western Cape, South Africa

Manufacturers of products ranging from batteries to electronic devices, and wind turbines to hybrid cars, are scouring the world to secure critical supplies of rare earths such as neodymium, praseodymium and dysprosium.

The increasing applications of rare earths in key industries, which include smartphones, are fuelling worldwide demand and raising the prices of some rare earths.

The Steenkampskraal mine in the Western Cape province of South Africa has the highest grades of rare earth elements in the world and with this South Africa hopes to become a significant supplier of rare earths in world markets.

The mine plans to establish a supply chain of its highly-sought-after rare earths to manufacturers around the world. Some manufacturers see the supply so critical that they have indicated interest in buying a share of the mine to secure supplies.

The rare earths known as neodymium, praseodymium and dysprosium make up about 85% of the economic value at the Steenkampskraal mine. These are key rare earth elements used in the manufacture of permanent magnets that go into most electric motors in the world.

More than half the economic value of the Steenkampskraal mine ore is in neodymium, followed by around 20% in praseodymium and 10% in dysprosium. In 2015, China produced about 80% of the global rare earths output.

Neodymium and praseodymium form the basis of neodymium-iron-boron (NdFeB) magnets. The addition of dysprosium enables these magnets to operate at high temperatures. These magnets are used in numerous products ranging from miniature speakers in smart phones to wind turbines.

NdFeB enables smaller, lighter and more powerful magnets to be manufactured for defense weapon systems. Neodymium magnets are also key components in electric cars and make appliances like air conditioners far more energy efficient. LED lighting relies on yttrium, cerium and other rare earths.

Most people have no idea about the components in smartphones. Yttrium and praseodymium are what make smartphones so small, powerful and bright. In the defence industry, rare earths are vital in laser, radar, sonar, night-vision systems, missile guidance, smart bombs, jet engines, and even the alloys on armoured vehicles.

Some manufacturers, as well as some countries, are indicating concern over China’s dominance of these strategic resources. The concentration of rare earths production in China raises the question of supply vulnerability.

Because rare earths are used for so many commercial applications, the US, Japan, Europe and other countries could be vulnerable to supply disruptions. Rare earths are considered essential to a country’s national security and economic well-being.

The Steenkampskraal mine has great value and economic potential. The mine’s rare earths basket, based on present prices, is about US$15.84 per kilo of separated rare earth oxides. The cost of the mine’s production is estimated at US$9.64 per kilo of separated rare earths. Gross profit is estimated at US$6.20 per kilo.

With these prices and volumes, the company would have a total sales value of about US$43 million per year, a total cost of about US$26 million per year and a gross profit around US$17 million per year.

Steenkampskraal presently has a Mineral Resource Estimate of 605,000 tons of ore with an average grade of 14.4% Total Rare Earth Oxides (TREO) for a total of 86,900 tons of contained TREO.

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STL PRESENTATION MADE

Click to access Trevor%20Blench%20and%20Johan%20Slabber%20-%20Nuclear%20Africa%202016.pdf

• Has a jurisdictional mine site area of 474 hectares.
• Surrounding farm areas of 6 990 hectares have been purchased as buffer zones for the mine operations.

• STL is part of the International Thorium Consortium
• Aim is to commercialize thorium as a supplement fuel in conventional nuclear reactors
• Irradiation testing of thorium-oxide LWR pellets in the Halden Reactor (Norway) started on 25 April 2013
• Second round of test irradiation is underway.
• Two rigs in the reactor containing various Thorium fuel compositions

Steenkampskraal Thorium Ltd. (STL) is a South African registered company, supported by private share holders and is based in Centurion
• STL is developing thorium containing fuel as an environmentally cleaner, safe and efficient energy source from the point at which the thorium is mined to the acquisition of fuel
• STL is designing a small modular High Temperature Reactor and a strategy for Fuel ProductionThorium is a naturally occurring radioactive element found in the earths crust
• Thorium is often produced as part of the tailings in Rare Earth Element separation processes
• It is approximately 4-5 times more abundant than uranium
• Thorium is not fissile but fertile; this means that thorium can
capture a neutron to produce fissile 233U • The fission of Thorium does not generate minor actinides
• Thorium containing fuel can facilitate the reduction of world-wide plutonium stockpiles

• STL has built up a technical team of specialists to design and build High Temperature Reactors (HTR) and a fuel plant
• Five years of engineering is completed on a 30MWth and a 100MWth HTR
• STL calls its HTR a High Temperature Modular Reactor (HTMR)
• Marketing has been initiated in various countries
• The objective is cleaner, safer, sustainable and affordable nuclear power and process heat for desalination

The HTMR100 and HTMR30 are Gen IV 100MWt and 30MWt helium cooled reactors that feature a uranium, uranium-thorium or plutonium-thorium fuel cycles
• Ceramic spherical fuel elements are used in an OTTO cycle and allows on-line fuelling. Used fuel only requires simple dry cooling
• This fuel technology has excellent demonstrated safety characteristics
• The HTMR can be utilised for power generation and process heat applications, specifically desalination
• Small size and modular construction result in shorter building times and lower costs and allows for future modular expansion. The Reactor Vessel is designed to be road transportable

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Image result for STL is part of the International Thorium Consortium

If demand for thorium increases due to favorable reactor designs, then thorium can be supplied through byproduct recovery from deposits mined for other valuable mineral resources. As prominent examples, thorium-bearing monazite ((rare earth elements, Th)PO4) is an accessory mineral in many deposits of rare earth elements and heavy-mineral sands.
https://www.sciencedirect.com/science/article/pii/B9780081003077000107

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    Image result for Steenkampskraal

    The Steenkampskraal Monazite Mine was first established in 1952, to extract monazite ore for the production of thorium and rare earth element (REE) concentrate. Refurbishment of the mine in recent years has required the re-inspection and re-evaluation of the mineralized monazite zone (MMZ). This contribution presents a structural review of the MMZ and its emplacement, based on recent data and its setting at the southern extent of the Bushmanland Sub-province of the Namaqua-Natal Metamorphic Belt. New surface and underground mapping confirm that the MMZ is a moderately-dipping body within gneissic host rocks on the southern limb of a broad F3 antiform. Thickness variations, both down-dip and along-strike, are the result of D2 and D3 deformation. The MMZ has been locally transected and steepened by subsequent late-D3, “steep-structures”, which are typical of the Okiep copper district, ∼150 km north of Steenkampskraal. Geochronological data suggest that the MMZ was intruded, emplaced or formed at 1046 ± 7.5 Ma, at the start of the D3Klondikean Episode (1040–1020 Ma). Unlike the analogous copper-bearing Koperberg Suite in the Okiep Copper district, the MMZ was not intruded into Klondikean-aged steep structures, but was rather transected and steepened by these. Local steepening of the otherwise moderately-dipping to flat-lying MMZ makes it locally amenable to detection by soil sampling and radiometric surveys.
    https://www.sciencedirect.com/science/article/pii/S1464343X16301789

    3 gedagtes oor “REE IN SOUTH AFRICA/SUID-AFRIKA”

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