Little Glass Mountain

E99785

Little Glass Mountain is a prominent obsidian lava dome within California’s Medicine Lake Volcano, known for its glassy rhyolitic lava flows and well-preserved volcanic features.

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Statements (44)

Predicate Object
instanceOf lava dome
obsidian dome
volcanic landform
belongsToVolcanicField Medicine Lake Volcano
surface form: Medicine Lake volcanic field
composition high-silica rhyolite
eruptionAge Holocene
eruptionStyle effusive
silicic
hasFeature blocky lava surface
flow levees
glassy lava flows
obsidian talus
pressure ridges
pumice deposits
spines and domes
well-preserved flow fronts
hasPreservationState well-preserved
hasScientificSignificance natural laboratory for obsidian flow processes
record of recent silicic volcanism in the Cascades
hazardType lava flow hazard
tephra fall hazard
isExampleOf obsidian-producing eruption
postglacial silicic volcanism
isOnFlankOf Medicine Lake Volcano
isPartOf Medicine Lake Volcano
surface form: Medicine Lake Volcano summit area
isYoungerThan Medicine Lake Volcano
surface form: Glass Mountain (Medicine Lake Volcano)
lastEruptionPeriod late Holocene
lavaType obsidian
locatedIn California, United States
surface form: California

Medicine Lake Volcano
Modoc County, California NERFINISHED
Shasta County, California NERFINISHED
United States of America
surface form: United States
monitoredAsPartOf Cascades Volcano Observatory programs
monitoredBy United States Geological Survey
near Medicine Lake Volcano
surface form: Glass Mountain (Medicine Lake Volcano)

Medicine Lake NERFINISHED
partOf Cascade Range volcanic province
surfaceColor black
surfaceTexture vitreous
usedFor geologic field studies
volcanology education
volcanicRockType rhyolite
within Modoc National Forest NERFINISHED

Referenced by (1)

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

Medicine Lake Volcano hasObsidianDome Little Glass Mountain