These pictures are of the Pinnacles. I will relay you the history of the pinnacles, as per the display at the exhibit.They began when
the eruptions of Mt Mazama were reaching their climax. Torrents of red-hot gas-charged pumice poured down Mazama's slopes at speeds of up to 100 mph. On top of this came a flow of heavier rocks called scoria. These glowing avalanches flooded downslope for many miles, leaving deep deposits in their wake. Temperatures in the deposits may have exceeded 750 degrees fahrenheit. Plumes of vapors appeared as gasses escaped from the settling rocks through vents called fumaroles in the shape of slender cones. Since then, streams have eroded a canyon through the deposits, exposing the cones. Many of these fossil fumaroles are hollow.
the eruptions of Mt Mazama were reaching their climax. Torrents of red-hot gas-charged pumice poured down Mazama's slopes at speeds of up to 100 mph. On top of this came a flow of heavier rocks called scoria. These glowing avalanches flooded downslope for many miles, leaving deep deposits in their wake. Temperatures in the deposits may have exceeded 750 degrees fahrenheit. Plumes of vapors appeared as gasses escaped from the settling rocks through vents called fumaroles in the shape of slender cones. Since then, streams have eroded a canyon through the deposits, exposing the cones. Many of these fossil fumaroles are hollow.
Isn't the Earth so amazing? Still so many new things to see and learn about. These look like somebody's art work. Well, I guess they ARE! Mother Earth's! Make's me grateful for all her wonders.... xoxo
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