Skip to main content

Caldera

#Volcanic landforms #Volcanology #Volcanic calderas #Igneous rocks #Depressions geology

1 Silica-rich magma does have a high viscosity, and therefore does not flow easily like ________.

2 At the summit of the largest volcano on Earth, ________, is a subsidence caldera called Moku‘āweoweo Caldera.

3 A caldera is a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption such as the ones at Yellowstone National Park in the US and ________ in Scotland.

4 As a result, the magma is much less ________ than the magma of a rhyolitic volcano, and the magma chamber is drained by large lava flows rather than by explosive events.

5 Mount Pleasant Caldera (New Brunswick, ________)

6 What does the following picture show?  Aniakchak-caldera, Alaska   Satellite photograph of the summit caldera on Fernandina Island in the Galapagos archipelago.   Mt.Pinatubo, Philippines   Satellite photo of Lake Taupo

7 Blake River Megacaldera Complex (Quebec/Ontario, ________)

8 What does the following picture show?  Mount Pleasant Caldera, southwestern New Brunswick, Canada   Landsat image of Lake Toba, on the island of Sumatra, Indonesia. A resurgent dome formed the island of Samosir. (100 kilometres long and 30 kilometres wide, caldera of the world's largest class)   Crater Lake, Oregon, formed around 5,680 BC

9 Aira Caldera (Kagoshima Prefecture, ________)

10 La Garita Caldera (________, US)

💡 Interesting Facts

  • men from the 1st Oregon Volunteer Infantry Regiment were the first explorers to climb down the 800-foot (240 m) caldera wall to reach the shore of Crater Lake?
  • the underwater volcanoes of the Vance Seamounts are pocketed by multiple calderas, many of which have been almost erased by newer flows?
  • the eight volcanoes of the President Jackson Seamounts are heavily pocketed by 29 calderas and pit craters?
  • in 1865, a party led by Captain Franklin B. Sprague of the 1st Oregon Volunteer Infantry descended an 800-foot (240 m) caldera wall to become the first explorers to reach the shore of Crater Lake?
  • eruptions from Mahogany Mountain, a caldera volcano, produced rock formations in Leslie Gulch over 15 million years ago?
  • Rim Drive in Oregon, a scenic highway cited by the American Automobile Association as one of the ten most beautiful roads in the U.S., is a 33-mile loop that follows the caldera rim around Crater Lake (pictured)?
  • Sinnott Memorial Observation Station is a sheltered viewpoint built into the caldera cliff 900 feet (270 m) above Crater Lake in Oregon?
  • a pit crater (example pictured), unlike an impact crater, is formed by the ground sinking over a void such as an emptied magma chamber or caldera?
  • thermal vent ecosystems have been discovered in the Aegean Sea, in the caldera of Kolumbo underwater volcano?
    • Previous Quiz Next Quiz

    Related Quizzes