Energy and Mineral Resources > Concept #5 Quiz
Ores are typically easily mined, whereas industrial materials are usually much more difficult to collect and process.
Metallic ores are usually formed by igneous and metamorphic processes, whereas industrial materials are not.
Ores are used for building and other construction purposes, whereas industrial materials are useful metallic minerals that are mined.
Ores are widespread minerals and rocks, whereas industrial materials are usually much rarer, causing their costs to be relatively higher.
Ores are useful metallic minerals that are mined, whereas industrial materials are used for building and other construction purposes.
Match the type of igneous or metamorphic process with the correct mineral resource:
Using the pulldown boxes, match each item on the left to the corresponding item at right.
the residual melt can become enriched in rare elements, and volatiles can carry them away from the cooling magma late in the process
the first crystals to form are absent of important metallic elements, so only the last crystals to form in the center of the chamber are ores
heavy minerals crystallize early and tend to settle to the lower portion of the magma chamber
light minerals crystallize last, so the heavy minerals are larger crystals
Indicate the appropriate description of the process occurring at each label on the diagram:
For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
by decomposition of humus and soil gases during intense, tropical weathering
as hydrothermal vein deposits in limestone around a granitic batholith
as deposits around submarine, hot spring vents
by regional metamorphism of organic-rich, black shales
pegmatite deposits after magmatic segregation
magmatic segregation causing residual enrichment of magma
hydrothermal solutions from heating of water by cooling magma
contact metamorphism associated with the cooling of a nearby magma chamber