Curtis Formation
E904943
The Curtis Formation is a Middle Jurassic geologic unit in the western United States, characterized mainly by marine sandstones and siltstones that record shallow sea environments.
Statements (33)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
stratigraphic unit ⓘ |
| contains |
bioturbation structures
ⓘ
cross-bedding ⓘ marine fossils ⓘ ripple laminations ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| depositionalSetting | epicontinental sea ⓘ |
| environmentOfDeposition |
shallow marine
ⓘ
shoreface ⓘ |
| geologicAge | Middle Jurassic ⓘ |
| geologicPeriod | Jurassic ⓘ |
| grainSize |
fine-grained
ⓘ
medium-grained ⓘ |
| hasStratigraphicRank | formation ⓘ |
| isPartOfBasin | Cordilleran foreland region NERFINISHED ⓘ |
| lithology |
sandstone
ⓘ
siltstone ⓘ |
| locatedIn |
Colorado
ⓘ
Utah ⓘ Wyoming ⓘ western United States NERFINISHED ⓘ |
| maximumThickness |
about 150 meters
ⓘ
about 500 feet ⓘ |
| namedFor | Curtis, Utah NERFINISHED ⓘ |
| overlies | Entrada Sandstone NERFINISHED ⓘ |
| partOf | Colorado Plateau NERFINISHED ⓘ |
| primaryColor | greenish gray ⓘ |
| region | Intermountain West NERFINISHED ⓘ |
| stratigraphicUnitOf | San Rafael Group NERFINISHED ⓘ |
| tectonicSetting | passive margin ⓘ |
| underlies |
Morrison Formation
NERFINISHED
ⓘ
Summerville Formation NERFINISHED ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.