Podcast
Questions and Answers
What process has been the dominant force shaping the granite extrusions of Yosemite Valley since the glaciers retreated?
What process has been the dominant force shaping the granite extrusions of Yosemite Valley since the glaciers retreated?
- Erosion
- Melting
- Exfoliation (correct)
- Intrusion
What is the chief geologist, Stock, speculating as a possible cause for the cracks in Half Dome to snap?
What is the chief geologist, Stock, speculating as a possible cause for the cracks in Half Dome to snap?
- Rainfall (correct)
- Sun exposure
- Glacier activity
- Magma intrusion
What caused the tough, granite intrusions like Half Dome to be exposed over time?
What caused the tough, granite intrusions like Half Dome to be exposed over time?
- Magma bubbles reaching the surface
- Erosion by rainfall
- Exfoliation process
- Retreat of glaciers (correct)
What led to the formation of intrusions like Half Dome in Yosemite Valley?
What led to the formation of intrusions like Half Dome in Yosemite Valley?
What process contributed to the formation of peaks like Half Dome and El Capitan in Yosemite?
What process contributed to the formation of peaks like Half Dome and El Capitan in Yosemite?
What caused a pair of climbers to notice a massive section of missing rock on Half Dome?
What caused a pair of climbers to notice a massive section of missing rock on Half Dome?
Why did nobody notice when the 5 million pound slab slid off the face of Half Dome?
Why did nobody notice when the 5 million pound slab slid off the face of Half Dome?
What is the primary cause of the numerous rock falls in Yosemite Valley?
What is the primary cause of the numerous rock falls in Yosemite Valley?
When did the North American plate start overriding the Pacific plate, leading to the formation of Yosemite Valley?
When did the North American plate start overriding the Pacific plate, leading to the formation of Yosemite Valley?
What is the approximate frequency of rock falls in Yosemite Valley per year?
What is the approximate frequency of rock falls in Yosemite Valley per year?
