define ores? how are they classified
Answers
Answer:
Ores are classified based on how they form. ... These are known as magmatic or volcanic ores. Nickel, copper, and iron ores are typically formed from magmatic or volcanic-related deposits. Carbonate alkaline ores are formed from other igneous processes other than volcanic and activity.
Explanation:
Ores are classified based on how they form. These are known as magmatic or volcanic ores. Nickel, copper, and iron ores are typically formed from magmatic or volcanic-related deposits. Carbonate alkaline ores are formed from other igneous processes other than volcanic and activity.
Ores are classified based on how they form. Some ores form from the cooling and crystallization of minerals within magmas, lavas, or igneous intrusions. These are known as magmatic or volcanic ores. Nickel, copper, and iron ores are typically formed from magmatic or volcanic-related deposits. Carbonate alkaline ores are formed from other igneous processes other than volcanic and activity. Rare earth element ores and also some diamonds are part of the carbonate alkaline group. As you can imagine, if ores can form from igneous processes, then they can also form from metamorphic or sedimentary processes also. Metamorphic ores often contain lead, zinc, and silver, as well as some iron oxides. Sedimentary ore deposits include banded iron formations, and gold, platinum, zinc, tin, and even diamond-containing ores that formed in sedimentary environments. Lastly, ores can form as a result of hydrothermal processes. These processes involve the exposure of rocks and minerals to extremely hot water, usually near oceanic hydrothermal vents or hot springs. Most of the world's gold ores, as well as uranium ores, formed from hydrothermal processes.