Half Dome (Sierra Nevada Mountains, California, USA) 44 : 無料・フリー素材/写真
Half Dome (Sierra Nevada Mountains, California, USA) 44 / 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 | Granodiorite in the Cretaceous of California, USA.The granites at Half Dome are part of an extensive, Cretaceous-aged intrusive complex in eastern California called the Sierra Nevada Batholith. The complex consists of numerous individual plutons, many of which are old, cooled magma chambers that were originally beneath ancient subduction zone volcanoes. Half Dome itself is a large exfoliation dome bisected by vertical jointing.Geologic unit: Half Dome Granodiorite, Late Cretaceous, 89-93 MaLocality: view from Sentinel Bridge, Yosemite National Park, Sierra Nevada Mountains, eastern California, USA |
| 撮影日 | 2010-07-08 21:25:41 |
| 撮影者 | James St. John |
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