Asked by Mason Miller on May 11, 2024
Verified
How do many copper deposits form?
A) near intermediate to felsic intrusions that have a porphyritic texture
B) in massive sulfide deposits formed as black smokers on the seafloor
C) from mixing of different types of groundwater
D) all of these
Copper Deposits
Concentrations of copper ore found naturally in geological formations, often mined for economic purposes.
Felsic Intrusions
Igneous rock formations rich in light-colored minerals such as quartz and feldspar, formed from magma that intrudes into the crust but does not reach the surface.
Porphyritic Texture
A texture of igneous rocks characterized by large crystals embedded in a finer-grained matrix or groundmass, indicative of a complex cooling history.
- Ascertain the geological processes instrumental in forming certain mineral deposits, for instance, copper, lead-zinc, and iron ore.
Verified Answer
FM
Fernanda MorenoMay 15, 2024
Final Answer :
D
Explanation :
Copper deposits can form through various geological processes, including near intermediate to felsic intrusions with a porphyritic texture, in massive sulfide deposits from black smokers on the seafloor, and from the mixing of different types of groundwater.
Learning Objectives
- Ascertain the geological processes instrumental in forming certain mineral deposits, for instance, copper, lead-zinc, and iron ore.