Here is a closeup of banded Gneissic rock found along the Cascade Canyon trail at Grand Tetons National Park. Click the arrow on the side for a step-by-step animation of this rock’s structural history through the concept of cross-cutting relationships!
0: The rock is formed and metamorphosed.
1: (Green) Much later, it fractures and the joint (crack) fills in with quartz.
2: (Red) The rock faults with dextral (right handed) motion.
3: (Blue) The current face that we see is exposed from another fracture, which can be seen from the joint plume (blue lines) which represent the propagation of energy through the hard material.
27 Notes/ Hide
- hermitthekermit reblogged this from strike-the-dip
- tuffschist likes this
- gazolli reblogged this from rocksandants
- birefringence12 likes this
- igugunite likes this
- le-mineraliste-by-ads reblogged this from geologicalgeorgian
- antisheep likes this
- markferguson27 likes this
- officiousseeingeyebitch- reblogged this from luzonite
- luzonite reblogged this from rocksandants
- luzonite likes this
- curlicuetruth likes this
- tessaboe likes this
- rocksandants reblogged this from strike-the-dip
- vlionheart reblogged this from strike-the-dip
- curiousmittenkitten likes this
- baronuberstein likes this
- geologicalgeorgian reblogged this from strike-the-dip
- geologicalgeorgian likes this
- feedmesushi likes this
- mountainsinmoonlight reblogged this from strike-the-dip
- ihopethisisfunny likes this
- hgirl712 likes this
- rocksandants likes this
- volcanologist reblogged this from strike-the-dip
- volcanologist likes this
- strike-the-dip posted this