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What are the key characteristics of a geological hotspot and how do they form volcanic chains?

Geography

ScanSolve AI Answer

Here are the characteristics of hotspots:

  • Stationary Source: The hotspot remains relatively fixed while tectonic plates move over it.
  • Volcanic Chains: As a plate moves, it forms a chain of volcanoes. Older volcanoes are farther from the hotspot.
  • Age Progression: Rocks become progressively older with distance from the active hotspot.
  • Basaltic Magma: Most hotspots produce basaltic lava, which is less viscous and flows easily.
  • Long-lived Activity: Hotspots can remain active for millions of years.
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