Grand Staircase

https://www.youtube.com/watch?v=UwwNhuGgFa0

Guests: Doug Sharp and Rich Geer

Geology Of The Colorado Plateau

• Cedar Breaks National Monument – topmost layer

• Entrada Sandstone in Bryce Canyon National Park

• White Cliffs in Zion National Park

• Grand Staircase National Monument

• Vermillion Cliffs National Monument

• Chocolate Cliffs on the North Rim Grand Canyon

• Kaibab Toroweap

• Coconino

• Hermit Shale

• Supai Group

• Redwall Limestone – Mississippian

Unconformity – Interbedding

• Temple Butte – Devonian

• Muav – Cambrian

• Bright Angel Shale

• Tapeats Sandstone

Great Unconformity – Precambrian

• Dox Formation

• Shinumo Sandstone

• Hakatai Shale

• Diabase

• Vishnu Schist

• Zoroaster Granite

• Brahma Schist

• Rama Schist

• Elve’s Canyon Gneiss

Evidence For Resurfacing Of The Earth

• The cliffs at Page and Lee’s Ferry form a funnel into the Grand Canyon.

• The side canyons of the Grand Canyon point toward the east.

• Crossbedding in all layers show rapid deposition

• Hoodoos in Bryce, Cedar Breaks and elsewhere

• Painted Desert is at lower elevation