01:460:101 Study Guide - Midterm Guide: United States Geological Survey, Convergent Boundary, Metasomatism
29 Sep 2016
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Foliation is the alignment of minerals or grains due to differential stress. Metamorphic rocks in which minerals are not aligned within the rock are: nonfoliated. Metamorphic rocks are classified primarily according to: whether they are foliated or non- foliated. Which of the following is a foliated metamorphic rock? phyllite, slate, gneiss. The major difference between metamorphism and metasomatism is: metasomatism is metamorphism with the introduction of additional ions from an external source. Ore bodies at divergent plate margins are commonly formed by: hydrothermal processes. Metamorphic minerals that form under a limited range of temperature and pressure are called: index minerals. A metamorphic rock that has undergone partial melting to produce a hybrid metamorphic- igneous rock is called: migmatite. Which of the following lists is arranged in order from lowest to highest grade of metamorphic rock? slate, phyllite, schist, gneiss. Regional metamorphism is associated with: convergent plate boundaries. The generally accepted temperature limits for metamorphism are: from about 200 degrees.
