What kind of volcano am I? (Chart Reading/Diagram 2).After learning about the basic kinds of volcano volcano, vents or fissures in the earth's crust through which gases, molten rock, or lava, and solid fragments are discharged. Their study is called volcanology. formations, read the descriptions of the real-life real-life adj. Actually happening or having happened; not fictional: a documentary with footage of real-life police chases. volcanoes below. Then answer the question: What kind of volcanic formation am I-- cinder cone cinder cone or ash cone Deposit around a volcanic vent, formed by rock fragments or cinders that accumulate and gradually build a conical hill with a bowl-shaped crater at the top. , composite, caldera caldera: see crater. caldera Large, bowl-shaped volcanic depression that forms when the top of a volcanic cone collapses into the space left after magma is ejected during a violent volcanic eruption. The term is Spanish for “caldron. , shield volcano shield volcano See under volcano. , or lava dome In volcanology, a lava dome or plug dome is a roughly circular mound-shaped protrusion resulting from the slow eruption of felsic lava (usually rhyolite and/or dacite) from a volcano. ? ANSWERS Paricutin Pa·ri·cu·tin A volcano, 2,272.3 m (7,450 ft) high, of west-central Mexico west of Mexico City. It erupted from a cornfield in February 1943 and grew more than 458 m (1,500 ft) in that year alone. : cider cone cone, in botany cone or strobilus (strŏb`ələs), in botany, reproductive organ of the gymnosperms (the conifers, cycads, and ginkgoes). Crater Lake Crater Lake Lake, Cascade Range, southwestern Oregon, U.S. The lake is in a huge volcanic caldera 6 mi (10 km) in diameter and 1,932 ft (589 m) deep. It is the remnant of a mountain destroyed in an eruption more than 6,000 years ago. : caldera Mauna Loa Mauna Loa (mou`nə lō`ə), mountain, 13,680 ft (4,170 m) high, in the south central part of the island of Hawaii, in Hawaii Volcanoes National Park. Its many craters include Kilauea and Mokuaweoweo, two of the world's largest active craters. : shield volcano Novarupta Novarupta, meaning "new eruption", is a volcano located on the Alaska Peninsula in the Katmai area, about 290 miles southwest of Anchorage. Novarupta sits below Mount Katmai. Its eruption of June 6–June 8, 1912, was ten times more powerful than the 1980 eruption of Mount St. : lava dome Mount St. Helens St.Helen may refer to:
NAME/ SIZE LAST ERUPTION
LOCATION
Paricutin, 424 meters In 1943, a Mexican farmer discovered
Mexico (1,391 feet) steam rising from his cornfield. Soon
high an explosion of hot ash shot up
through a vent. Gas that had been
trapped inside the Earth rapidly
expanded and escaped, turning molten
lava into cinders. Within days, a
towering volcano stood in place of the
field. The last eruption in 1952 left
a funnel-shaped crater at the top.
What kind of volcano am I?--
Crater Lake, 52 sq km Thousands of years ago, a prehistoric
Oregon (20 sq miles), volcano called Mount Mazama stood
589 m where Crater Lake lies today.
(1,932 ft) Scientists theorize that magma beneath
deep the volcano drained through
underground channels. The peak
collapsed inward, leaving behind a
huge basin that eventually filled with
rainwater and snow.
What kind of volcano am I?
Mauna Loa, 4,170 m Mauna Loa is one of the world's
Hawaii (13,681 ft) largest volcanoes. Lava from Mauna
above sea Loa--in the form of basalt
level rock--covers about 50 percent of the
island of Hawaii. The volcano erupts
every few years, but the eruptions
last for only a few days. In 1984,
earthquakes preceded an eruption,
offering people nearby an early
warning. Eruptions at Mauna Loa are
famous for their "curtains of fire"
--fountains of extremely fluidlike
lava.
What kind of volcano am I?--
Novarupta, 841 m In June 1912, a new volcano--Novarupta
Alaska (2,759 ft) --erupted violently on the flanks of
high Katmai Volcano. A thick mound of lava
then rose from within the volcano and
fanned outward, blocking the vent. The
pent-up pressure inside the vent
resulted in a huge explosion that
showered volcanic ash over Kodiak
Island and much of Alaska's mainland.
Eventually the slow-flowing lava
hardened and formed the rounded cap
seen today.
What kind of volcano am I?--
Mount 2,549 m In 1980, after 123 years of dormancy,
St. Helens, (8,363 ft) Mount St. Helens blew its top. The
Washington high first eruptions, in March, shot ash
and vapor more than 6,600 m (21,654 ft)
into the sky. On May 18, a bulge of
magma blasted through the side of the
mountain. A plume of ash rose to an
altitude of about 19 km (12 mi).
Fifty-seven people died during that
eruption. If you flew into the crater
of Mount St. Helens, you would see the
layers of ash and hardened lava that
built up the volcano during past
eruptions.
What kind of volcano am I?--
|
|
||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion