Glaciation 1.2.4 - Types of Ice Mass

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  • Created by: BluJay117
  • Created on: 02-10-18 12:10

1. What is a Piedmont glacier?

  • Steep valley glaciers spill into relatively flat plains, where they spread out into bulb-like lobes
  • Forms at the ocean surface once the temperature drops to -2, freezing point for salt water; can be over 6m thick
  • Similar to ice caps, except that their flow is influenced by the underlying topography, and they are typically smaller than ice caps
  • Enormous continental masses of glacial ice and snow expanding over 50,000 square km
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2. What is a Cirque Glacier?

  • Enormous continental masses of glacial ice and snow expanding over 50,000 square km
  • When ice sheets extend over the sea and float on the water
  • Typically, they are found high on mountainsides and tend to be wide rather than long, named after the bowl-like hollows they occupy
  • Similar to ice caps, except that their flow is influenced by the underlying topography, and they are typically smaller than ice caps

3. What is an Ice Field?

  • When ice sheets extend over the sea and float on the water
  • Similar to ice caps, except that their flow is influenced by the underlying topography, and they are typically smaller than ice caps
  • Forms at the ocean surface once the temperature drops to -2, freezing point for salt water; can be over 6m thick
  • Typically, they are found high on mountainsides and tend to be wide rather than long, named after the bowl-like hollows they occupy

4. What is an Ice Sheet?

  • When ice sheets extend over the sea and float on the water
  • These glaciers spill down valleys; may be very long, often flowing down beyond the snow line, sometimes reaching sea level
  • Enormous continental masses of glacial ice and snow expanding over 50,000 square km
  • Similar to ice caps, except that their flow is influenced by the underlying topography, and they are typically smaller than ice caps

5. What is Sea Ice?

  • Forms at the ocean surface once the temperature drops to -2, freezing point for salt water; can be over 6m thick
  • Enormous continental masses of glacial ice and snow expanding over 50,000 square km
  • These glaciers spill down valleys; may be very long, often flowing down beyond the snow line, sometimes reaching sea level
  • Similar to ice caps, except that their flow is influenced by the underlying topography, and they are typically smaller than ice caps
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