Questions and Answers
When was the planet Earth formed?
About 4.5 billion years ago
What is the name given to molten rock when it is still below the surface?
Magma
What is the date after which there will only be less extraction of a mineral called?
Peak mineral
What is the most well-known rock that is in danger of being used up due to extraction and use?
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What is the layer between the dense core and the light crust of the Earth called?
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What term is used to describe the date at which the most coal is being extracted, after which it will decline?
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What are examples of sedimentary rocks?
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How are metamorphic rocks formed?
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What are examples of metamorphic rocks?
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What were the rocks like when the Earth's crust first formed?
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What causes the changes in structure that lead to metamorphic rocks?
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How are sedimentary rocks formed?
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What type of mining involves digging tunnels into the ground to reach mineral deposits that are too deep to be removed by surface mining?
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What is the term for a drift mine entered by an adit?
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How are the deepest deposits reached in sub-surface mining?
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Why is shaft mining more difficult compared to open-pit mining?
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What is the miners' primary job in sub-surface mining?
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Why is sub-surface mining more expensive and technically challenging than horizontal or slope tunnelling?
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What are the factors that mining companies need to consider before starting a new mine?
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Why is developing surface mines considered easier than developing mines underground?
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What are greenfield sites in the context of mining?
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What is the strike rate for finding new gold deposits?
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What are brownfield sites in the mining industry?
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How can deposits near the surface be extracted?
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How can mineral deposits on the Earth's surface be found using remote sensing methods?
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What is the unique radiation pattern produced by weathered mineral deposits at the Earth's surface used for?
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How do some satellites locate valuable mineral ores in rocks below the Earth's surface?
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What role do computers play in analyzing satellite data for mineral presence in a region of interest?
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In what conditions can remote sensing methods for mineral detection operate?
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What term is used to describe a rock with enough of an important element to make it worth mining?
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