What triggered the Gros Ventre rockslide?
What triggered the Gros Ventre rockslide?
Three primary factors are thought to have contributed to the unusual event: 1. Heavy rains and rapidly melting snow saturated the Tensleep Sandstone, causing the Amsden Shale rock layer on Sheep Mountain to become exceptionally slippery; 2.
What happened in the 1925 Gros Ventre Slide in Wyoming?
On June 23, 1925, hurling down the slope at 50 mph, the mile-wide Gros Ventre Slide carried 50,000,000 cubic yards of debris down the mountain and then another 300 feet up the opposite slope. The Slide blocked the Gros Ventre River, and formed a five-mile long body of water known today as Lower Slide Lake.
Which of those processes rock fall rock slide or slump occurred in Gros Ventre near Jackson Hole WY in 1925?
Scar of the Gros Ventre landslide in background with landslide deposits in the foreground. 1925, Gros Ventre, Wyoming: On June 23, 1925, a 38 million cubic meter (50 million cu yd) translational rock slide occurred next to the Gros Ventre River (pronounced “grow vont”) near Jackson Hole, Wyoming.
What is the best example of landslide?
Debris flows (commonly referred to as mudflows or mudslides) and rock falls are examples of common landslide types. Almost every landslide has multiple causes. Slope movement occurs when forces acting down-slope (mainly due to gravity) exceed the strength of the earth materials that compose the slope.
What type of landslide is the Gros Ventre?
Geocache Description: One of the largest fast-moving landslides in generations occurred near the village of Kelly, Wyoming. In just three minutes, huge amounts of rock and debris cascaded down the north slope of Sheep Mountain.
What happened in the 1925 Gros Ventre Slide in Wyoming quizlet?
The Gros Ventre Slide occurred as a slump that dammed the Gros Ventre River and created the Lower Slide Lake. Which of the following was primarily responsible for this famous event? Shale A was responsible for the failure because it was mechanically weak and dipped in a downslope direction.
What is the difference between a debris flow and an earth flow?
A debris flow is the movement of a water-laden mass of loose mud, sand, soil, rock and debris down a slope. An earthflow is a flow of fine-grained material that typically develops at the lower end of a slope. Earthflows often ooze down a mountain at a pace of a slow-moving earthworm.
https://www.youtube.com/watch?v=QESqilkBpLI