Answer the following questions based on your interpretation of the Scheme for Metamorphic Rock Identification chart of the Earth Science Reference Tables (page 7) as well as your class notes.
1. I am a fine-grained, foliated metamorphic rock that consists mainly of mica. The protolith, or
parent rock from which I was created was most likelya. sandstone b. limestone c. shale d. dolostone2. I am a coarse-grained, foliated metamorphic rock that was produced as a result of regional
metamorphism. I consist principally of quartz, feldspar and pyroxene. My name isa. hornfels b. phyllite c. gneiss d. marble3. I am a fine-grained, nonfoliated metamorphic rock that forms at the boundary between an igneous
intrusion and the surrounding country rock. My name isa. hornblende b. phyllite c. schist d. hornfels4. Which textural term best describes a metamorphic rock that has been produced as a result of
medium-grade regional metamorphism and in which mica crystals appear as large and clearlydistinguishable grains?a. gneissic b. foliated c. slaty d. schistose5. I am a nonfoliated metamorphic rock that effervesces (fizzes) in the presence of hydrochloric acid.
My name isa. gneiss b. marble c. hornfels d. schist6. Quartzite is generally thought to have been produced either through the regional or contact
metamorphism of which protolith?a. sandstone b. shale c. limestone d. dolostone7. Which is the generally observed relationship between heat, pressure (stress), and depth within
the Earth's crust?a. As depth increases, heat increases while pressure decreases.b. As depth decreases, heat increases while pressure decreases.c. As depth increases, pressure increases while heat decreases.d. As depth increases, both heat and pressure increase.8. I am a coarse-grained metamorphic rock in which my sole three components, quartz, feldspar,
and amphibole, are arranged in distinct, alternating parallel layers, thereby giving me a banded,"layer-cake" appearance. My name isa. gneiss b. hornfels c. schist d. slate9. Which mineral, generally present as one of the principal components of foliated metamorphic
rocks, is replaced by (recrystallized into) feldspar as a result of high-grade regional metamorphism?a. pyroxene b. hornfels c. mica d. garnet10. Imagine that a shale, formed at the Earth's surface, becomes progressively buried to great depth
beneath a mountain belt. Assuming that melting does not occur, which should be the generallyobserved order of metamorphic rocks into which the shale is progressively transformed?a. slate-gneiss-schist b. schist-gneiss-slate c. gneiss-schist-slate d. slate-schist-gneiss
