What are tekites?
A) globular to teardrop- shaped, dark, glassy, silica- rich impact melts
B) hard, foliated, hornfels chips in a shale heated by an intrusive granite
C) unusually coarse- grained migmatites that crystallized in a caldera
D) granular breccias produced by fault zone shattering
Correct Answer:
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Q5: In 1915, which geologist proposed a series
Q6: Which facies would you expect to find
Q7: Which is a coarse- grained, high- grade,
Q8: What texture results from the alignment of
Q9: A large block of sedimentary rock that
Q11: Where and how does metamorphism occur?
A) mainly
Q12: Which rock forms by contact metamorphism of
Q13: Which of the following forms at a
Q14: Which one of the following is not
Q15: Which is a nonfoliated metamorphic rock consisting
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