Geology
- Created by: ukgamer321
- Created on: 06-05-14 18:56
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- Geology
- sedimentary
- layers of sediment, grainy crumbly and contain fossils
- sandstone
- limestone
- chalk
- igneous
- solidification of molten material from below earth's surface
- granite
- basalt
- metamorphic
- effect of extreme pressures and temperatures deep in Earth.
- slate
- marble
- freeze thaw
- crack filled with water
- water freezes and expands
- ice melts and repeats
- onion skin weathering
- rock heated
- rock cools
- cracks form and layers flake off
- Biological
- seed enters crack and begins to grow
- as it grows and becomes bigger it cracks the rock
- Chemical
- acid rain falls and dissolves rock. in warm wet areas
- sedimentary
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