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Billion-year-old seabed ripples are fossilized in a blue rock pattern on broken yellow and purple rocks above Logan Pass, in Glacier National Park, Montana, USA.

Billion-year-old seabed ripples are fossilized in a blue rock pattern on broken yellow and purple rocks above Logan Pass, in Glacier National Park, Montana, USA. Published in "Light Travel: Photography on the Go" book by Tom Dempsey 2009, 2010. Rocks in the park are primarily sedimentary layers deposited in shallow seas over 1.6 billion to 800 million years ago. During the tectonic formation of the Rocky Mountains 170 million years ago, the Lewis Overthrust displaced these old rocks over newer Cretaceous age rocks. Since 1932, Canada and USA have shared Waterton-Glacier International Peace Park, which UNESCO declared a World Heritage Site (1995) containing two Biosphere Reserves (1976).

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© Tom Dempsey / PhotoSeek.com
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Contained in galleries
"Light Travel" book images 1981-2009, Montana: Glacier NP: Logan Pass hikes: Hidden Lake, Garden Wall, Montana: Glacier NP: stone patterns, natural abstracts, USA: Montana favorites
Billion-year-old seabed ripples are fossilized in a blue rock pattern on broken yellow and purple rocks above Logan Pass, in Glacier National Park, Montana, USA. Published in "Light Travel: Photography on the Go" book by Tom Dempsey 2009, 2010. Rocks in the park are primarily sedimentary layers deposited in shallow seas over 1.6 billion to 800 million years ago. During the tectonic formation of the Rocky Mountains 170 million years ago, the Lewis Overthrust displaced these old rocks over newer Cretaceous age rocks. Since 1932, Canada and USA have shared Waterton-Glacier International Peace Park, which UNESCO declared a World Heritage Site (1995) containing two Biosphere Reserves (1976).
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