Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Given the following core drilling information, metal prices and a tonnage factor of 0.45 m 3 /tonne for the Tolbert mineralized zone: (25 points) DDH
- Given the following core drilling information, metal prices and a tonnage factor of 0.45 m3/tonne for the Tolbert mineralized zone: (25 points)
DDH | Dip (degrees) | Collar Elevation (m) | Northing (m) | Easting (m) | Depth of Mineralized Zone (m) | Grade ( % Zn) | Grade ( % Cu) |
1 | -90 | 620 | 1250 | 3400 | 14.2 | 1.7 | 1.2 |
2 | -90 | 599 | 1250 | 3700 | 13.8 | 2.2 | 2.1 |
3 | -90 | 605 | 1350 | 3400 | 10.8 | 3.8 | 1.9 |
4 | -90 | 612 | 1350 | 3700 | 11.6 | 4.1 | 2.3 |
5 | -90 | 602 | 1450 | 3450 | 9.9 | 3.7 | 3 |
6 | -90 | 617 | 1450 | 3750 | 10.2 | 5 | 2.9 |
Metal | Market Price (Can $) |
Zinc | $0.96 /lb |
Copper | $2.75/lb |
- Calculate, the ore reserve characteristics using the triangular method.
- Calculate, the expected mine life and daily capacity of the ore deposit based on 260 operating days per year using Taylors equations. Disregard dilution and recovery factors.
- Based on the results you calculated in a) and b) above, a capital cost of $5,000,000 , an expected total mining cost of $110/ tonne, an expected milling cost of $30/ tonne, an expected mill recovery of 90 percent for each of the valuable metals, shipping costs for the Zn and Cu concentrates (2 different concentrates) to the nearest smelter/refinery of $30/ tonne (for each of the concentrates), smelter recovery of 92% for the Zn and Cu concentrates, treatment costs for each of the concentrates of $65 /tonne, a penalty for impurities in each of the concentrates of $25/ tonne, a grade of 38% for the copper concentrate, a grade of 42% for the Zn concentrate and an overall tax rate of 46%, calculate the maximum investments allowable for the project which would result in a minimum required rate of return of 15% and 20% for the Company. Ignore all other costs such as depletion allowance and depreciation costs. Show all calculations. Discuss your results
Please do type the answer. Do not write it on paper. Please and Thank you
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started