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Volcanic rocks (often
shortened to
volcanics in
scientific contexts) are
rocks formed from lava
erupted from a volcano. Like all rock types, the concept...
- The
Honolulu Volcanics are a
group of
volcanoes which form a
volcanic field on the
island of Oʻahu, Hawaiʻi, more
specifically in that island's southeastern...
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crust of a planetary-m**** object, such as Earth, that
allows hot lava,
volcanic ash, and
gases to
escape from a
magma chamber below the surface. The process...
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Volcanic ash
consists of
fragments of rock,
mineral crystals, and
volcanic gl****,
produced during volcanic eruptions and
measuring less than 2 mm (0.079 inches)...
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portion of New
Hampshire that
houses the
Ammonoosuc Volcanics. The
Middle Ordovician Ammonoosuc Volcanics are a
component of the
Bronson Hill Arc,
which is...
- A
volcanic plug, also
called a
volcanic neck or lava neck, is a
volcanic object created when
magma hardens within a vent on an
active volcano. When present...
- The
Volcanic Repeating Arms
Company was an
American company formed in 1855 by
partners Horace Smith and
Daniel B.
Wesson to
develop Walter Hunt's Rocket...
- The
Coronados Volcanics is a
geologic formation in Alaska. It
preserves fossils dating back to the
Devonian period.
Earth sciences portal Alaska portal...
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Volcanic lightning is an
electrical discharge caused by a
volcanic eruption rather than from an
ordinary thunderstorm.
Volcanic lightning arises from...
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Volcanic plume or
volcanic plume may
refer to:
Eruption plume, a
column of hot
volcanic ash and gas
emitted into the
atmosphere during an
explosive volcanic...