Angular unconformity, Grand Canyon, Cambrian over tilted Proterozoic rock. Note Cambrian pinch-out out against the brown Proterozoic Quartzite.

---

Cambrian rocks are Tapeats Sandstone and Bright Angel Shale. The Tapeats pinches out against the brown knob of Shinumo Quartzite that persisted as an island during the Cambrian Transgression.

---

Size: 5397px × 3600px
Location: Grand Canyon National Park, Arizona
Photo credit: © Marli Miller / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: angel, angular, arid, arizona, beautiful, bedding, bedrock, beds, bright, buttress, cambrian, canyon, colorado, desert, earth, geology, grand, history, island, landscape, layers, national, nature, park, plateau, pretty, proterozoic, quartzite, red, river, rock, sandstone, sauk, science, sedimentary, shale, shinumo, states, strata, stratified, stratigraphy, tapeats, transgression, unconformity, united, usa, view