What are tekites?
A) hard, foliated, hornfels chips in a shale heated by an intrusive granite
B) unusually coarse-grained migmatites that crystallized in a caldera
C) globular to teardrop-shaped, dark, glassy, silica-rich impact melts
D) granular breccias produced by fault zone shattering
Correct Answer:
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Q37: The intensity and grade of _ metamorphism
Q38: What platy, parallel, mineral grains are the
Q39: _ is characterized by the segregation of
Q40: Which of the following lists the rocks
Q41: Which facies would you expect to find
Q43: Increasing regional metamorphism of a basalt or
Q44: Why is the regional metamorphism of ocean
Q45: A _ forms at very high pressures
Q46: Tektites originate in what metamorphic environment?
A)low pressure
Q47: What is the end product (highest grade)reached
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