symmetrical fold

symmetrical fold

[sə′me·trə·kəl ′fōld]
(geology)
A fold whose limbs have approximately the same angle of dip relative to the axial surface. Also known as normal fold.
References in periodicals archive ?
It's a far cry from the pristine shelves, much revered at the likes of Benetton, where crisp symmetrical folds kiss the edges of shelves in parallel.

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