| http://www.w3.org/ns/prov#value | - tions flowing through fractures and pore spaces of crustal rock.</p><p>Many famous ore bodies have resulted from <strong>hydrothermal</strong> deposition, including the tin mines in Cornwall, England and the copper mines in Arizona and Utah. <strong>Magmatic</strong> mineral deposits are formed when processes such as partial melting and fractional crystallization occur during the melting and cooli
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