Most metallic ores are produced by which two types of processes? metamorphic and sedimentary igneous and metamorphic igneous and sedimentary cementation and compaction

Metallic ores are produced by igneous and metamorphic processes.

Explanation:

Metallic ores are present in every type of rock and few varieties of soil. These get concentrated into "rich masses by igneous, metamorphic processes". Metals precipitate as sulphide minerals in a cooling body of magma. Magmatic deposits occur when the "minerals settle to the bottom" and form layers. Metamorphic deposits rich in copper, cobalt, lead, zinc from hot solutions circulate through the rocks. The solutions come from heated meteoric water. Constant changing pressures result in precipitation of sulphides or pure metal like gold, copper, silver. This process is repeated again and again until the systems are filled with mineral deposits.

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