Absaroka Volcanic Supergroup
E793506
The Absaroka Volcanic Supergroup is a large sequence of Eocene-age volcanic rocks in the Rocky Mountains of Wyoming and Montana, representing one of the most extensive ancient volcanic fields in the region.
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
geologic unit
ⓘ
volcanic field ⓘ volcanic supergroup ⓘ |
| contains |
eroded stratovolcano remnants
ⓘ
lava flows ⓘ pyroclastic deposits ⓘ volcanic centers ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| eruptionStyle |
effusive volcanism
ⓘ
explosive volcanism ⓘ |
| exposedIn |
Absaroka Range
NERFINISHED
ⓘ
Beartooth Mountains foothills ⓘ Owl Creek Mountains NERFINISHED ⓘ Washakie Range NERFINISHED ⓘ |
| geologicAge | Eocene ⓘ |
| geologicPeriod | Paleogene ⓘ |
| hasEconomicResource | locally mineralized zones ⓘ |
| hasTypeOf | supergroup in North American Stratigraphic Code ⓘ |
| isPartOf | Absaroka volcanic province NERFINISHED ⓘ |
| lithology |
andesite
ⓘ
basaltic andesite ⓘ breccia ⓘ dacite ⓘ tuff ⓘ volcanic rocks ⓘ volcaniclastic rocks ⓘ |
| locatedIn |
Montana
ⓘ
Wyoming ⓘ |
| namedAfter | Absaroka Range NERFINISHED ⓘ |
| notableArea | Yellowstone region vicinity NERFINISHED ⓘ |
| overlies |
Cretaceous sedimentary rocks
ⓘ
Paleocene sedimentary rocks ⓘ |
| paleogeographicImportance | records Eocene volcanic arc activity in western North America ⓘ |
| partOf | Rocky Mountains NERFINISHED ⓘ |
| region |
northwestern Wyoming
ⓘ
south-central Montana NERFINISHED ⓘ |
| significance | major ancient volcanic field of the Rocky Mountains ⓘ |
| studiedInDiscipline |
petrology
ⓘ
stratigraphy ⓘ volcanology ⓘ |
| tectonicSetting | continental volcanic arc ⓘ |
| timeSpanEnd | middle Eocene ⓘ |
| timeSpanStart | early Eocene ⓘ |
| usedFor | regional stratigraphic correlation ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.