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Overburden tons/ore tons
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How do you calculate mean for open end class interval?
In case of open end classes, mean can be calculated only if their class marks (Mid-Points) are determined. If such classes contain a large proportion of the values, then the mean may be subjected to substantial error.
Which way does a parabola open when the coefficient of its y2-term is positive?
Open to the right. Like the sign for a subset, or a rounded version of the less than symbol, <.
How does an open question differ from a closed question?
Answers a question with a question.
Open ended class within the frequency distribution?
If, in a frequency distribution, the initial class interval is indeterminate at its beginning and/or the final class interval is indeterminate at its end, the distribution is said to possess "open ended" classes.
Why are open-ended frequency distributions necessary?
to quickly and effectively represent data
What is break even stripping ratio?
the stripping ratio fot the last increment alomg the pit wall. it determines whether one should continue mining using open pit(surface) or switch to uderground.
What are some types of mines?
Some types of mines include coal mines, gold mines, diamond mines, and copper mines. Mines are typically classified based on the type of mineral or metal being extracted from the earth.
Were can i find gemstone mines?
open pit mines in newbrunswick
What are the three types of surface mines?
The three types of surface mines are open-pit mines, strip mines, and mountaintop removal mines. Open-pit mines involve extracting minerals from a large, open excavation. Strip mines involve removing layers of soil and rock to expose the resource. Mountaintop removal mines involve removing the summit of a mountain to access the coal seams underneath.
What are open pit mines called?
they are quite simply called open pit mines, they can also be known as quarries.
What kind of mines are open pit and quarry mines?
Open pit mines are surface mines where the ore is extracted from an open pit. Quarry mines are also surface mines, but they specifically focus on extracting construction and industrial materials such as sand, gravel, and limestone for building purposes. Both types of mines involve removing large quantities of rock or minerals from the earth's surface.
How the mining of uranium occur?
Extraction of uranium:- extraction from underground mines- open pit mines- leaching
Types of mines?
types of underground mining methods - unsuported(natural suport)mining method -saported(artificial support)mining method - caving method
Describe 3 different kinds of mines?
Coal mine: A type of mine where coal is extracted from underground or open-pit mines to be used as a source of energy. Gold mine: A type of mine where gold ore is extracted and processed to produce gold, often found in underground mines or as open-pit mines. Diamond mine: A type of mine where diamonds are extracted and processed from volcanic pipes or alluvial deposits, with some mines operating underground while others are open-pit mines.
How many gold mines are in australia that are still open?
100,000
Why are open pit mines negative?
Open pit mines can have negative impacts on the environment and local communities due to the destruction of habitats, contamination of water sources, and generation of air pollutants. They can also result in displacement of communities and have long-lasting effects on the landscape. Additionally, open pit mines can contribute to greenhouse gas emissions and climate change.
What streches across northern Zambia?
The Copperbelt, a series of large deep mines and open cast mines stretches across northern Zambia.
