Podcast
Questions and Answers
The process of mineral extraction from a rock seam or ore is called ______.
The process of mineral extraction from a rock seam or ore is called ______.
mining
A naturally occurring element or compound is referred to as a ______.
A naturally occurring element or compound is referred to as a ______.
mineral
Strip mining involves the removal of a thin strip of ______ above a desired deposit.
Strip mining involves the removal of a thin strip of ______ above a desired deposit.
overburden
A rock or sediment containing a high percentage of one or more minerals is known as ______.
A rock or sediment containing a high percentage of one or more minerals is known as ______.
Dredging is the process of mining materials from the bottom of a body of ______.
Dredging is the process of mining materials from the bottom of a body of ______.
Surface mining is used to extract ore minerals located near the ______ of the earth.
Surface mining is used to extract ore minerals located near the ______ of the earth.
Underground mining is the process of extracting minerals and ______ from the earth.
Underground mining is the process of extracting minerals and ______ from the earth.
The primary steps involved in mineral processing include sampling, analysis, and ______.
The primary steps involved in mineral processing include sampling, analysis, and ______.
In underground mining, miners create a ______ to access ore minerals beneath the surface.
In underground mining, miners create a ______ to access ore minerals beneath the surface.
Sampling is the removal of a portion which represents a ______ needed for analysis.
Sampling is the removal of a portion which represents a ______ needed for analysis.
Open-pit mining creates a big hole or ______ in the ground for extracting minerals.
Open-pit mining creates a big hole or ______ in the ground for extracting minerals.
Concentration involves the separation of valuable minerals from the ______.
Concentration involves the separation of valuable minerals from the ______.
The controlled use of explosives and gas exposure is necessary for breaking rocks in ______ mining.
The controlled use of explosives and gas exposure is necessary for breaking rocks in ______ mining.
The ______ method of mining is used for extracting coal, phosphates, clays, and tar.
The ______ method of mining is used for extracting coal, phosphates, clays, and tar.
Due to the dangers involved, underground mining is generally more ______ than surface mining.
Due to the dangers involved, underground mining is generally more ______ than surface mining.
Mineral processing includes refining minerals and preparing them for ______.
Mineral processing includes refining minerals and preparing them for ______.
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Study Notes
Mineral Extraction and Processing Overview
- Mining is the extraction of minerals from rock seams or ores, involving the separation of valuable components from raw materials.
- A mineral is a naturally occurring element or compound; an ore contains a high percentage of one or more minerals.
Methods of Mining
- Surface Mining: Extracts ores and minerals located near the earth's surface by removing overlying soil and rock.
- Underground Mining: Involves creating tunnels to access minerals found below the surface, requires explosives, and is typically more expensive and hazardous.
Types of Surface Mining
- Open-pit Mining: The most common method, creating large pits in the ground, used primarily for gravel, sand, and rock mining.
- Strip Mining: Involves the sequential removal of thin strips of overburden above mineral deposits, commonly used for coal and phosphates.
- Dredging: Extracts materials from the bottom of bodies of water like rivers or lakes, crucial for sourcing submerged minerals.
Mineral Processing Steps
- Sampling: Involves removing a portion of material for analysis, crucial for evaluating the ore's composition.
- Analysis: Essential for assessing valuable components; includes chemical, mineral, and particle size analysis.
- Comminution: The crushing and grinding of ores to liberate valuable minerals, with the final product being a powdered form.
- Concentration: The process of separating valuable minerals from waste materials, enhancing the quality of the extracted resources.
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