Coconino Sandstone
E562319
Coconino Sandstone is a prominent Permian-age geological formation of well-sorted, cross-bedded sandstone best known from exposures in the Grand Canyon region of the southwestern United States.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
sedimentary rock unit ⓘ |
| ageEstimate | approximately 265 million years old ⓘ |
| classification | quartz arenite ⓘ |
| color | light-colored ⓘ |
| contains |
high-angle cross-beds
ⓘ
pinstripe lamination ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| depositionalEnvironment | eolian dune field ⓘ |
| diagenesis | well-cemented quartz arenite ⓘ |
| forms | steep cliffs ⓘ |
| fossilContent |
invertebrate trace fossils
ⓘ
plant trace fossils ⓘ vertebrate trackways ⓘ |
| geologicAge | Permian ⓘ |
| geologicPeriod | Permian period NERFINISHED ⓘ |
| geologicProvince | Colorado Plateau Province NERFINISHED ⓘ |
| grainSize | fine- to medium-grained ⓘ |
| importance | key marker bed in Grand Canyon ⓘ |
| lithology | sandstone ⓘ |
| mapUnitSymbol | Pc (in some geologic maps) ⓘ |
| namedFor | Coconino County, Arizona NERFINISHED ⓘ |
| notableExposure |
Grand Canyon National Park
NERFINISHED
ⓘ
New Mexico NERFINISHED ⓘ northern Arizona ⓘ southern Utah NERFINISHED ⓘ western Colorado NERFINISHED ⓘ |
| overlies | Hermit Formation NERFINISHED ⓘ |
| partOf | Colorado Plateau NERFINISHED ⓘ |
| partOfStratigraphicColumn | Grand Canyon stratigraphy ⓘ |
| permeability | high ⓘ |
| porosity | high ⓘ |
| primaryComposition | quartz sand ⓘ |
| region | southwestern United States NERFINISHED ⓘ |
| researchTopic |
Permian paleoclimate
ⓘ
eolian sedimentology ⓘ paleowind directions ⓘ |
| sedimentaryStructure | large-scale cross-bedding ⓘ |
| stratigraphicSupergroup | Supai Group and related formations of the Grand Canyon region ⓘ |
| stratigraphicUnitOf | Grand Canyon NERFINISHED ⓘ |
| texture | well-sorted ⓘ |
| thickness |
commonly about 90–300 meters in the Grand Canyon area
ⓘ
up to several hundred feet ⓘ |
| underlies | Toroweap Formation NERFINISHED ⓘ |
| usedFor | stratigraphic correlation across the Colorado Plateau ⓘ |
| weatheringPattern | massive vertical cliffs ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.