Entrada Sandstone (Middle Jurassic) (Goblin Valley, southeast-central Utah, USA) 1 : 無料・フリー素材/写真
Entrada Sandstone (Middle Jurassic) (Goblin Valley, southeast-central Utah, USA) 1 / 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 | Differential weathering and erosion of interbedded hard quartzose sandstones and relatively soft siltstones and mudrocks have produced an abundance of oddly-shaped features at Goblin Valley, Utah (also known as Mushroom Valley). The reddish-brown color of the rocks is from hematite (Fe2O3 - iron oxide). This is the Entrada Sandstone, an upper Middle Jurassic unit consisting of very shallow marine and nonmarine coastal sand dune deposits. The same rocks make up the main scenery at Arches National Park, Utah.Locality: Goblin Valley State Park, southeast-central Utah, USA |
| 撮影日 | 2010-07-17 11:49:28 |
| 撮影者 | James St. John |
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