What is tonnage factor?
The tonnage factor provides the mechanism for the conversion from volume of ore to weight of ore. In the English system, the tonnage factor is normally expressed as cubic feet per ton of ore. In the metric system, the tonnage factor is the specific gravity of the ore.
How do you calculate mineral deposits?
4 Steps in Calculating the Mineral Deposit Value
- Calculate the Tonnage of the Mineral Deposit. Formula. Example.
- Multiply the Tonnage by the Grade. Calculation. Answer.
- Convert Copper to Pounds and Gold to Ounces. Calculation. Answer.
- Convert the Pounds and Ounces to the Corresponding Metal Value.
How do you calculate ore reserves?
The basic parameters for ore reserve estimation are thickness and area – quantitative indicator of form» size, and volume of the mineral deposit; grade – the qualitative indicator of values and their distribution in the deposit; and specific gravity indicator for tonnage estimation.
How do you find the grade of an ore?
The average grade of each hole is the sum of the products of each sample length by its assay value divided by the sum of the lengths. This grade, multiplied by the volume of the prism and divided by the volume-per-ton factor, gives the tons- percent or ton-dollars in the prism, as the case may be.
How do I calculate tonnage of my body?
The standard method of making these estimates is to find the cubic contents of triangular prisms, in the apexes of which the drill holes are placed, by multiplying the surface area by the average depth of the ore in the three drill holes and then multiplying the cubic contents by the specific gravity of the ore or rock …
How do you calculate tonnage of a mineral?
Length in feet x Width in feet x Depth in feet (inches divided by 12). Take the total and divide by 21.6 (the amount of cubic feet in a ton). The final figure will be the estimated amount of tons required.
What is reserve estimation?
Introduction Reserves estimation is one of the most essential tasks in the petroleum industry. It is the process by which the economi- cally recoverable hydrocarbons in a field, area, or region are evaluated quantitatively.
What are the steps of exploration?
MINING.
What is assay value?
i. The quantity of an ore’s valuable constituents, determined by multiplying its assay grade or percentage of valuable constituents by its dimensions. The figure for precious metals is generally given in troy ounces per ton of ore, or per assay ton.
How do you calculate tons?
Calculating Tons From Pounds. One ton is equal to 2,000 pounds. Use this ratio between the two units as a conversion factor to calculate tons from pounds. Consider a boulder that weighs 9,000 pounds. Calculate the number of tons as follows: 9,000 pounds x (1 ton / 2,000 pounds) = 4.5 tons.
How to calculate gross tonnage of a ship?
Gross Tonnage is a measure of the ships total interior volume and is calculated by multiplying the interior volume “V” of the ship in cubic meters by a variable known as “K” (which varies depending on the ships overall volume). Gross Tonnage is not to be confused with Gross Registered Tonnage which is explained below.
How to figure press tonnage?
How to Calculate Press Brake Tonnage (By Chart, Formula & Calculator) Press Brake Tonnage Chart The following press brake tonnage chart is used by many press brake manufacturers both in China and abroad countries. Bending Force Calculation Formula Except for the bending chart, you can also use the bending force formula to calculate the required bending force by yourself. Press Brake Tonnage Calculator