Saturday, 5 August 2017
Saturday Photo: Dry Falls and the Forces of the Earth
On our trip West in July, one of the most interesting places we
stopped was at the Dry Falls State Park where the ancestral Columbia
once ran.
Or maybe it wasn't the Columbia, exactly. What is certain now is that an enormous amount of water surged over this precipice as the Ice Age ended and an ice dam burst, letting free the impounded waters of a massive meltwater lake. The result was a catastrophic flood (or floods) and this dry, empty landscape which followed. The dark rocks, by the way, were laid down in another geologic event that staggers the imagination: the great volcanic episode which saw lava spread over hundreds of thousands of acres for perhaps a million years.
All this puts our particular problems in perspective. We are screwing things up royally, but our presence on this planet is likely to be only fleeting. The rocks remain.
Or maybe it wasn't the Columbia, exactly. What is certain now is that an enormous amount of water surged over this precipice as the Ice Age ended and an ice dam burst, letting free the impounded waters of a massive meltwater lake. The result was a catastrophic flood (or floods) and this dry, empty landscape which followed. The dark rocks, by the way, were laid down in another geologic event that staggers the imagination: the great volcanic episode which saw lava spread over hundreds of thousands of acres for perhaps a million years.
All this puts our particular problems in perspective. We are screwing things up royally, but our presence on this planet is likely to be only fleeting. The rocks remain.
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