Deposit Types

Narrow Vein

Narrow veins are tricky and are often misunderstood by Resource Geologists who are more used to work with other deposit types. Our experts have extensive experience in Narrow Vein Gold Deposits.

The 3D model itself is highly critical in getting a realistic resource estimate, and so are high grade treatment (capping) and how to deal with multiple (sometimes >100) individual veins. Shortcuts often used by less knowledgeable resource geologists can cost you dearly in the long run.

Classification is also a parameter that needs experienced resource geologists with a significant amount of exposure to such deposits to get a reliable model that won't lead to flawed economic studies or reconciliation issues.

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Volcanic Massive Sulphide (VMS-Au)

Volcanogenic massive sulphide deposits generally do not pose great difficulties when modeling, but can be more complex when semi-massive zones and metallic zonation are present.

 

A common error observed in many VMS-Au deposit mineral resource estimates is to interpolate NSR values rather than individual metals and then calculate the NSR value for each block. The individual metal distribution is the key to a robust and malleable block model for future economic scenarios as well as being an important procedure to produce a reliable resource estimation.

Abitibi, in Canada, is a well-known region for gold-bearing VMS and PLR's President lived and worked over 15 years in the region.

Lithium Pegmatite

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Lithium Pegmatite projects can be tricky as they appear extraordinarily simple to non-experienced resource geologists improvising themselves as Lithium Pegmatite experts where, in fact, many specific aspects of the deposit are important to master to deliver reliable resources.

 

Down the road, a wrong 3D model and Block Model will kill or significantly negatively hit the economics of a lithium pegmatite project.

Our experts have developed a rare expertise in hard rock lithium deposits and partners with Mining Engineers and Metallurgists to deliver reliable mineral resource estimates.

Although modeling follows a different approach than narrow veins deposits, these two deposit types share a lot of similarities.

The 3D model itself is, as for narrow vein deposits. highly critical in getting a realistic resource estimate, and so are high grade treatment (capping).

Classification is also a parameter that needs experienced resource geologists with a significant amount of exposure to such deposits to get a reliable model that won't lead to flawed economic studies or reconciliation issues.

Typically not challenging in terms of 3D modeling, some iron deposit can be structurally complex requiring geologists with structural background.

There are many types of iron ore deposits. Mneralogy and geology of the ore deposits are crucial to the economics of the Project, mainly affecting recovery and Capex. 

PLR Resources partners with Process Engineers to produce reliable mineral resource estimates.

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Rare Earth Elements (REE)

Rare Earths are in high demand and their popularity is likely to increase in the coming years due to the technology industry needs.

Although modeling is generally simple, the quantity of elements involved is an interesting challenge for Resource Geologists.

PLR understands REE deposit particularities and partners with

Metallurgists and other Experts to produce reliable mineral resource estimates.

Porphyry Systems and Skarns

Typically not challenging at first sight in terms of modeling, Porphyry Systems and Skarns deposits can have local higher grade structures that merits more attentions.

Deposits associated with Porphyry Systems encompass a wide variety of types characterized by metal content, geotectonic setting, hydrothermal alteration, and host.

Porphyry Systems typically show the presence of veins and stringers forming stockworks, within which are found disseminated sulphides of iron, copper, molybdenite, led, and zinc, with native gold, and tungsten, bismuth, and tin minerals.

 

The number of elements involved requires a strong grasp on metallurgy and warrants experienced interpolation skills to produce a reliable mineral resource estimate.

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Graphite (and Graphene)

There are mainly three genetic types of Graphite deposits: regional metamorphic, contact metamorphic, and hydrothermal.

Graphite deposits result from the metamorphism of sedimentary rocks rich in carbonaceous matter or from precipitation from carbon-bearing fluids (structurally controlled veins).

Crystalline flake graphite is the main raw material for manufacturing graphene and batteries. Its value is significantly higher than other types of graphite.

Typically, crystalline flake graphite deposits show a gradational contact between graphite-rich unit and surrounding barren units; graphite content decreases with increasing distance from calcsilicate rocks. For some deposits, the highest-grade graphite is encountered in the crests of folds.
 

Other Types of Deposits

Our experts also have expertise in Nickel, Platinum Group Elements (PGE), Zn-Pb Mississippi Valley-Type (MVT), and Uranium deposits.

The 3D modeling and resource estimation skills of our experts cover contexts with relatively simple geology to structurally complex environments, including karstic and lateritic environments.

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