Magmatic sulfides, a significant source of valuable metals like platinum, palladium, and chromium, are formed through a fascinating process within Earth’s fiery depths. The Formation Process Mafic and Ultramafic Magmas: These magma types, rich in iron, magnesium, and sulfur, are ...
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T𝐡𝐞 𝐂ut-off grade: 𝐚 𝐅𝐨𝐮𝐧𝐝𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐏𝐚𝐫𝐚𝐦𝐞𝐭𝐞𝐫.
In the econometrics of mineral resources, cut-off grades are threshold values used to determine the economic viability of mining operations. The cut-off grade depends on several parameters, and we primarily distinguish between: The geological cut-of grade The geological cut-off grade ...
Core barrels: an overview
What is a core barrel? The core barrel is an essential part of each coring practice as it collects the core sample in its inner tube and simultaneously its outer tube acts as the BHA. Core barrels are not all ...
Classification of the Drilling Rate Index
What is drilling rate index? DRI is a measure of the difficulty or ease of drilling rock, and it was developed at the Norwegian University of Science and Technology in Trondheim, Norway. The DRI value is strongly related to the uniaxial ...
Placer deposits
Placer deposit are natural concentration of heavy minerals caused by the effect of gravity on moving particles. When heavy, stable minerals are freed from their matrix by weathering processes, they are slowly washed downslope into streams that quickly winnow the ...