Nugget Sandstone
E930698
Nugget Sandstone is a prominent Jurassic-age sandstone unit of the western United States, best known for its extensive eolian (wind-deposited) dune deposits and its role as a significant reservoir rock in regional geology.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Page Sandstone | 1 |
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
sandstone unit ⓘ |
| color | light-colored sandstone ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| depositionalSetting | erg (sand sea) ⓘ |
| diageneticFeatures |
iron-oxide staining in some intervals
ⓘ
silica cementation in places ⓘ |
| economicImportance |
groundwater aquifer in some basins
ⓘ
hydrocarbon reservoir rock ⓘ |
| geologicAge | Jurassic ⓘ |
| knownFor |
extensive eolian dune deposits
ⓘ
high-porosity reservoir characteristics ⓘ large-scale cross-bedding ⓘ |
| lithology | sandstone ⓘ |
| locatedIn | western United States NERFINISHED ⓘ |
| overlies | older Paleozoic and Triassic units in many areas ⓘ |
| porosityType | primary intergranular porosity ⓘ |
| primaryDepositionalEnvironment | eolian ⓘ |
| primaryDepositionalProcess | wind-deposited dune systems GENERATED ⓘ |
| regionalSignificance | major Jurassic eolian sandstone of the western interior ⓘ |
| researchImportance |
analog for subsurface eolian reservoirs
ⓘ
key unit for studying ancient eolian systems ⓘ |
| reservoirQuality | generally good to excellent ⓘ |
| sedimentaryStructure |
high-angle cross-beds
ⓘ
large-scale cross-stratification ⓘ |
| stratigraphicUnitOf | Mesozoic stratigraphy of the western United States ⓘ |
| tectonostratigraphicContext | pre-foreland basin sedimentation in the western interior ⓘ |
| typicalGrainSize | fine- to medium-grained GENERATED ⓘ |
| underlies | younger Jurassic and Cretaceous formations in many areas ⓘ |
| usedIn | regional stratigraphic correlation ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Page Sandstone