Geological Processes and Weathering

The Grenville Supercontinent and Geological History

• The Grenville refers to geological formations associated with the supercontinent cycle, particularly focusing on the amalgamation of supercontinent Rodinia.

  • Pre-Pangaea Supercontinents:

  • Penascha: Broke apart approximately 500 million years ago.

  • Rodinia: Existed around 800 to 900 million years ago.

  • Columbia (Nuna): An earlier supercontinent thought to precede Rodinia.

  • Ur: One of the earliest known supercontinents dating back near 2 billion years ago, also holding the record for the second oldest.