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- Factors Affecting the Cut-off Grade in Mining - ZVENIA
The Cut-off Grade is one of the most critical factors determining whether an ore deposit is economically viable for mining It represents the minimum metal concentration required to make extraction profitable Several factors influence this threshold, including:
- Optimizing Cut-Off Grades in Mining: Economic Thresholds
Established mining districts with existing infrastructure can support lower cut-off grades due to reduced development and operating costs Access to power, water, transportation, and skilled labor creates substantial economic advantages
- Determination of optimal cut-off grade - SAIMM
One of the most difficult problems in mining operation is how to determine optimum cut-off grades of ores at different periods over the lifespan of the mine that will maximize the net present value (NPV) of the mine Maximizing the NPV of a mining operation, subject to different constraints is a nonlinear programming problem
- Cut-off Grade Optimisation Feb 07 - Whittle Consulting
Although a higher metal price lowers the marginal cut-off grade (from say 1% down to 0 8%) it also increases the prize for increasing the mining rate and cut-off grade to achieve higher early average grades and higher production In the case of a project with many years of resource left, high metal prices will raise the optimal early cut-off grade
- Modifying Factors and Optimized Cut-Off Grade Determination
Cut-off grade (COG) is a standard, industry-accepted method used to determine which part of a mineral deposit to include in a Mineral Resource or a Mineral Reserve estimate, or potentially in an operation’s Life of Mine Plan (LOM)
- Cut-off grades explained - Next Investors
A cut-off grade is the grade of mineralisation that a deposit can be economically mined and dictates which drilling intercepts can and can’t be used in a JORC resource The cut-off grade is determined by the cost to mine a deposit, and the price that a company can sell the underlying commodity
- Optimal cut-off grade determination based on variable . . . - SciELO
In this paper, Lane’s original algorithm has been modified to consider variable processing capacities in order to determine the optimal cut-off grade in open-pit mines
- Cut-Off Grades - MiningMath
Cut-off grades determine material as ore or waste based on mineral concentration Optimize destinations and enhance cut-off grades with MiningMath
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