Fort Rock volcanic tuff ring

E628079

Fort Rock volcanic tuff ring is a prominent horseshoe-shaped volcanic formation in central Oregon, created by explosive interactions between rising magma and an ancient lake.

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Statements (47)

Predicate Object
instanceOf maar-type volcano
tuff ring
volcanic landform
age Pleistocene
composition volcanic tuff
country United States of America
surface form: United States
county Lake County NERFINISHED
diameter approximately 1,000 meters
elevation approximately 1,400 meters above sea level
eruptiveStyle hydrovolcanic
formedBy explosive interaction of magma and water
multiple explosive eruptions
phreatomagmatic eruptions
formedIn Pleistocene epoch NERFINISHED
formedInEnvironment ancient pluvial lake
geologicalOrigin interaction of rising basaltic magma with an ancient lake
hasActivity geological sightseeing
hiking
hasFeature ash and lapilli beds
breached crater rim
steep tuff cliffs
hasNearbySite Fort Rock Cave NERFINISHED
hasStatus well-preserved volcanic structure
height up to about 60 meters above surrounding plain
landformType isolated volcanic ring in a basin plain
locatedIn Lake County, Oregon NERFINISHED
Oregon
United States of America
surface form: United States
locatedNear community of Fort Rock, Oregon
managedBy Oregon Parks and Recreation Department NERFINISHED
namedAfter its resemblance to a fort
openSideOrientation to the west
partOf Basin and Range Province
Fort Rock–Christmas Lake Valley basin NERFINISHED
Fort Rock–Christmas Lake Valley volcanic field NERFINISHED
protectedAs state natural area
region central Oregon
rockType basaltic tuff
shape horseshoe-shaped
significance example of maar–tuff ring volcanism in Basin and Range Province
state Oregon
tourism popular sightseeing destination
usedFor geology education
recreation
volcanicField Fort Rock–Christmas Lake Valley volcanic field NERFINISHED
volcanicType phreatomagmatic tuff ring
within Fort Rock State Natural Area NERFINISHED

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Fort Rock–Christmas Lake Valley hasFeature Fort Rock volcanic tuff ring