Big Hole maar
E628083
Big Hole maar is a large volcanic crater in Oregon’s Fort Rock–Christmas Lake Valley, formed by explosive interactions between rising magma and groundwater.
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
maar
ⓘ
volcanic crater ⓘ |
| access | remote area of Fort Rock–Christmas Lake Valley ⓘ |
| age | Quaternary ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| currentStatus | extinct volcano ⓘ |
| elevation | approximately 1,400–1,500 meters above sea level ⓘ |
| eruptionStyle | phreatomagmatic ⓘ |
| eruptiveOrigin | single eruptive center (monogenetic) ⓘ |
| featureType | monogenetic volcano ⓘ |
| formationProcess |
explosive interaction of magma and groundwater
ⓘ
phreatomagmatic eruption ⓘ |
| geologicAge | Late Pleistocene (approximate) ⓘ |
| geologicalProvince | Basin and Range Province NERFINISHED ⓘ |
| hasFeature |
broad crater floor
ⓘ
steep crater walls ⓘ tuff ring ⓘ |
| hydrology | formed by interaction with groundwater ⓘ |
| landformCategory |
impact-like crater (volcanic origin)
ⓘ
volcanic landform ⓘ |
| lastEruption | Pleistocene (approximate) ⓘ |
| locatedIn |
Basin and Range Province
NERFINISHED
ⓘ
Fort Rock–Christmas Lake Valley NERFINISHED ⓘ Lake County, Oregon NERFINISHED ⓘ Oregon ⓘ |
| locatedInProtectedArea | public lands of south-central Oregon (general) ⓘ |
| locatedOnContinent | North America ⓘ |
| mountainRange | Fort Rock–Christmas Lake Valley volcanic field NERFINISHED ⓘ |
| near |
Christmas Valley, Oregon
NERFINISHED
ⓘ
Fort Rock, Oregon NERFINISHED ⓘ |
| notableFor |
example of phreatomagmatic volcanism in Oregon
ⓘ
large maar crater morphology ⓘ |
| partOf | Oregon High Lava Plains volcanic region NERFINISHED ⓘ |
| region | Fort Rock–Christmas Lake Valley, south-central Oregon NERFINISHED ⓘ |
| relatedFeature |
Fort Rock maar
NERFINISHED
ⓘ
Hole-in-the-Ground maar NERFINISHED ⓘ other maars of the Fort Rock–Christmas Lake Valley volcanic field ⓘ |
| rockType | basaltic ⓘ |
| scientificDiscipline |
geomorphology
ⓘ
volcanology ⓘ |
| surfaceExpression | broad, low-relief volcanic crater ⓘ |
| volcanicArcOrBelt | Cascade Volcanic Arc (broad region) NERFINISHED ⓘ |
| volcanicField | Fort Rock–Christmas Lake Valley volcanic field NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.