Multiple Choice
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:
Verified
Correct Answer:
Verified
Q16: Tektites originate in what metamorphic environment?<br>A) high
Q17: Graphite is identified in a particular schist.
Q18: A sillimanite hornfels would_ .<br>A) usually form
Q19: A _ forms at very high pressures
Q20: Which one of the following statements is
Q22: Which two, metamorphic rocks are each composed
Q23: In 1915, which geologist proposed a series
Q25: _are formed from the impact of an
Q35: Which type of metamorphism occurs specifically in
Q92: Where does burial metamorphism occur, how is