Assertion: magma | /r/HasProperty | believed
Facets:
Source sentences:
text: It is believed that hydrothermal deposits, greisen, skarn, and other deposits of nonferrous, rare, and precious metals as well as some iron deposits are formed in the last stages of the formation of intrusives (the postmagmatic stage) by volatile components contained in the magma.
text: It is believed that hydrothermal deposits, greisen, skarn, and other deposits of nonferrous, rare, and precious metals as well as some iron deposits are formed in the last stages of the formation of intrusives (the postmagmatic stage) by volatile components contained in the magma.