Answer:
1. Shield Volcano:
Characteristics:
Has bowl-shaped create at the summit (e.g., Mauna Loa in Hawaii).
Has wide and flat sides.
Lava flows are typically thin and fluid, resulting in broad, gently sloping cones.
Formed by the accumulation of successive lava flows over time.
2. Stratovolcano (or Composite Volcano):
Has many layers of volcanic rock (alternating between solidified lava flows, volcanic ash, and other pyroclastic materials).
Typically has a steep profile.
Can have explosive eruptions due to the combination of viscous lava and trapped gases.
Examples include Mount St. Helens in the USA and Mount Vesuvius in Italy.
3. Cinder Cone Volcano:
Built from pyroclastic fragments (e.g., volcanic ash, tephra, and cinders) ejected during moderately explosive eruptions.
Has a steep slope and a relatively small size compared to shield and stratovolcanoes.
Often has a bowl-shaped crater at the summit.
Example includes Parícutin in Mexico.
Please note that these are broad categories, and specific volcanoes may exhibit variations in their characteristics.
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Answers & Comments
Answer:
1. Shield Volcano:
Characteristics:
Has bowl-shaped create at the summit (e.g., Mauna Loa in Hawaii).
Has wide and flat sides.
Lava flows are typically thin and fluid, resulting in broad, gently sloping cones.
Formed by the accumulation of successive lava flows over time.
2. Stratovolcano (or Composite Volcano):
Characteristics:
Has many layers of volcanic rock (alternating between solidified lava flows, volcanic ash, and other pyroclastic materials).
Typically has a steep profile.
Can have explosive eruptions due to the combination of viscous lava and trapped gases.
Examples include Mount St. Helens in the USA and Mount Vesuvius in Italy.
3. Cinder Cone Volcano:
Characteristics:
Built from pyroclastic fragments (e.g., volcanic ash, tephra, and cinders) ejected during moderately explosive eruptions.
Has a steep slope and a relatively small size compared to shield and stratovolcanoes.
Often has a bowl-shaped crater at the summit.
Example includes Parícutin in Mexico.
Please note that these are broad categories, and specific volcanoes may exhibit variations in their characteristics.