Quaternary gravel over Jurassic red shale (Salina Canyon, Utah, USA) 1 : 無料・フリー素材/写真
Quaternary gravel over Jurassic red shale (Salina Canyon, 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 |
|---|---|
| 説明 | Unconformities are surfaces of erosion and/or non-deposition of sediments. Types of unconformities include disconformities, nonconformities, and angular unconformities.Seen here is an unconformity representing about 165 million years worth of missing time. Light-colored gravel of Quaternary age has been deposited atop dark reddish shales of Middle Jurassic age. The contact is a disconformity (= sedimentary over sedimentary, with congruent layering).Stratigraphy of redbeds: Twelvemile Canyon Member, Arapien Formation, Middle JurassicLocality: mouth of Salina Canyon, south-southeast of the town of Salina, Sevier County, central Utah, USA |
| 撮影日 | 2007-06-23 14:31:19 |
| 撮影者 | James St. John |
| タグ | |
| 撮影地 |