The crest and trough may or may not coincide with the axis.
The crest and trough may or may not coincide with the axis. Correct Answer True
The line running through the highest points in an uparched fold defines the crest and similarly the line running through the lowest point in a downarched fold makes its trough. The crest and trough may or may not coincide with the axis of the fold.
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Feb 20, 2025