Lect. 3 01/21/2014
The Formation of Sediment & Sedimentary Rocks
How & why do rocks disintegrate
Rock > Sediment
Links between weathering & sediment
Links between sediment & rocks
Rocks > Sediment = Weathering
This makes two results: Solid Minerals (if the process is physical weathering) or Dissolved ions (Chemical
Weathering > Rock outcrops
Erosion > Sediment Transport (abrasion)
• Weathering is the interaction of the geosphere with the atmosphere, hydrosphere, and biosphere.
Exfoliation (Creates cracks in the ground from a difference in pressure.
Layers (bedding) – uses cracks to produce weathering.
Water is the agent used to create fractures in these cracks.
When the water in the cracks is frozen it expands causing the cracks to expand too and break into smaller
Requires cold climates
In hot climates salt water gets stuck in the c