Title | Pennsylvanian-Jurassic stratigraphy between Silverton and Durango, Colorado, U.S. 550 |
Description | This slope exposes Pennsylvanian (bottom) up to Cretaceous (top) rocks. The rim at the top is Dakota Sandstone (Cretaceous). Below that are slopes of the Morrison Formation (Jurassic) that overlie hard to distinguish cliffs of Entrada Sandstone (Jurassic), Navajo Sandstone (Jurassic) and Wingate Sandstone (Triassic). The redbeds at the bottom are mostly Permian. |
Chronostratigraphy | Pennsylvanian-Cretaceous |
Lithostratigraphy | Dakota SS, Morrison Fm., Entrada SS, Navajo SS, Wingate SS |
Geologic province | San Juan Mountains |
Location | USA |
Photographer | Dexter Perkins. 1999. |
Collection | E191030993F-16. |
Key words | Dakota Sandstone, Morrison Formation, Entrada Sandstone, Navajo Sandstone, Wingate Sandstone, Colorado |
Tech details | 255 KB. Vista. Canon EOS Rebel, 55mm, Kodak Elite Chrome 100 ASA. |
GeoDIL number | 1746 |
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