Yellowstone River (Grand Canyon of the Yellowstone, Wyoming, USA) 3 : 無料・フリー素材/写真
Yellowstone River (Grand Canyon of the Yellowstone, Wyoming, USA) 3 / James St. John
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | The Grand Canyon of the Yellowstone River is deep, colorful, and has two major waterfalls - Upper Falls and Lower Falls. The rocks of the canyon include rhyolite lava flows, rhyolitic volcanic tuffs, and some sedimentary deposits - all are geologically young and date to the Quaternary. The rocks have been hydrothermally altered - hydrothermal metamorphism refers to the intense alteration of rocks by superheated groundwater. Yellowstone has over 100,000 hydrothermal features in the form of hot springs, geysers, fumaroles, frying pans, and mudpots.The canyon is V-shaped in cross-section, indicating erosion by running water. U-shaped valleys in mountainous areas were eroded by glaciers.Locality: looking upstream from Artists Point, southern rim of the Grand Canyon of the Yellowstone, northwestern Wyoming, USA |
| 撮影日 | 2023-06-17 14:09:34 |
| 撮影者 | James St. John |
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