nationalparkgeek
Dec 27
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Snow on sandstone ❄️
Geeking out on geology from USGS website: Bryce Canyon is known for distinctive hoodoos, spires and towers that appear as forests of rock. This national park is part of the Colorado Plateau, a region of the present-day Southwest United States that was once periodically flooded by freshwater and marine landscapes in which massive amounts of fine-grained sediment was deposited over millions of years, lithified into sedimentary rock, and were later uplifted by tectonic activity. Over time, the rock was subjected to the slow, powerful forces of weathering and erosion that molded the landscape into the layered columns seen today.
The most distinctive feature of Bryce Canyon, hoodoos, are natural geologic features that create an otherworldly landscape. They are pillars of sandstone and other fine-grained sedimentary rocks created by the processes of uneven weathering (chemical and physical processes that break up rocks) and erosion (removal of sediment and rock due to weathering).
The uplift of the Colorado Plateau caused the area that is now Bryce Canyon to move to a higher elevation. For ~200 days of the year, the region experiences both above and below freezing temperatures, allowing ice and rain to create the hoodoos. Water seeps into spaces between and within rock. When the temperature lowers, the water within the rock freezes and expands. ice wedging, because as water freezes it expands. This expansion, known as ice wedging, starts to break apart rocks, first into walls, then windows, then a fully formed hoodoo as water continues to melt and then refreeze and reenter the cracks.
#geologyrocks
📍Indigenous land of the Nuwuvi (Southern Paiute), Pueblos, Ute and Hopi
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Thank you @southwest_sony Moody Bryce is always nice.
Sony A7riv / 200-600 G
nationalparkgeek
Dec 27
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