SOLVED

1) Which of the following forms at the highest grade of regional metamorphism? A) hornfels B) schist C) slate D) phyllite 2) What platy, parallel, mineral grains are the most visual aspect of foliated metamorphic rocks? A) micas B) feldspars C) carbonates D) quartz 3) What major change occurs during metamorphism of limestone to marble? A) Calcite grains grow larger and increase in size. B) Clays crystallize to micas, forming a highly foliated, mica-rich rock. C) Limestone grains react to form quartz and feldspars. D) Calcite grains are dissolved away leaving only marble crystals. 4) Which low-grade metamorphic rock, composed of extremely fine-sized mica and other mineral grains, typically exhibits well-developed rock cleavage? A) schist B) hornfels C) quartzite D) slate Please match the rock with the appropriate description. a. hornfelsb. marblec. gneissd. phyllite 5) forms by contact metamorphism of mudstones and shales 6) foliated, fine-grained metamorphic rock formed from mudstone and shale 7) nonfoliated metamorphic rock consisting mostly of calcite 8) coarse-grained, metamorphic rock with alternating bands or stringers of light and dark minerals 9) ________ is thought to form by partial melting and in situ crystallization of the melted portion. A) Magmatite B) Magnetite C) Migmatite D) Megatite 10) Which of the following is not necessary for the formation of metamorphic rock? A) pressure B) heat C) calcium-rich or liquids D) chemically active liquids 1