2006-07-26 08:01:39 · 5 answers · asked by dat dude 1 in Science & Mathematics ➔ Earth Sciences & Geology
It has to do with the pliability of the rock, the amount of time taken to fold, and the depth at which the rock is when folding takes place. Limestone is less pliable than sandstone, but either will fold under the proper conditions of depth, time, and heat. Faults are (geologically) instantaneous, so most rocks break when faults form. Fractures (with no movement) are more often the result of slower movements.
2006-07-26 08:08:45 · answer #1 · answered by Anonymous · 2⤊ 2⤋
1. Depends on the "competency" of the beds involved.
2. Depends on the amount of time subjected to the "crustal forces" -- if it has been a quick, abrupt force, beds may break that would otherwise fold if subjected to a slow, steady force.
2006-07-26 16:55:40 · answer #2 · answered by idiot detector 6 · 0⤊ 0⤋
They fold because layers have diferent degrees of flexibility, due to heat, chemicaly activated liquids, depth, etc.
A layer cold enoug breaks and a heated one folds. And so on.
2006-07-26 08:29:14 · answer #3 · answered by pogonoforo 6 · 0⤊ 0⤋
Elasticity. What a wonderful phrase.
Elasticity, ain't no passing craze.
It means no fault lines, til the end or earth's days
It's our earthquake-free, mountain-ability
Elasticity
2006-07-26 08:50:39 · answer #4 · answered by Anonymous · 0⤊ 0⤋
some rocks are more pliable?
2006-07-26 08:04:40 · answer #5 · answered by Heather 4 · 0⤊ 0⤋