How is tectonic foliation,such as elongation of quartz grains,oriented relative to the original bedding plane of a body of rock?
A) Foliation is parallel to original bedding.
B) Foliation is at about 45° to original bedding.
C) Foliation is perpendicular to original bedding.
D) Foliation can be at a variety of angles to original bedding.

Question

Quizplus · Accepted Answer

Tectonic foliation can form at a variety of angles to the original bedding plane of a rock body, depending on the orientation and intensity of the stress that caused the foliation. Therefore, the most appropriate answer is D.

How Is Tectonic Foliation,such as Elongation of Quartz Grains,oriented Relative