Taphonomy - Sediments
10 important questions on Taphonomy - Sediments
Why do we study the taphonomy sensu lato of sediments? What do we want to know?
- Site use
- Activity areas
- Fire
- Chemical changes to sediments leading to poor preservation of other remains
What are the stages in taphonomy sensu lato of sediments?
- Parent rock
- Deposition in sites
- Disturbances by humans and other animals
- Burial
- Post-depositional processes
- Excavation
Rates of burial (sediments)
- How quickly are those layers of sediment covered by other layers?
- Trying to understand the timeframe per layer
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Slow post-depositional processes sediments
- Diagenesis
- Chemical and physical processes
- Compaction of the sediment (due to removal of water)
- Sedimentation of the sediment (water bringing in more minerals -> sediments bind together)
On what do post-depositional processes have effect? (sediments)
Sediments research: parent rock
Sediments research: deposition in sites
- Animal agent
- Wind
- Water
Sediments research: disturbances by humans and animals
- Digging
- Fire
- Trampling
- Burrows
Sediments research: post-depositional processes
- Fast: surface water, animals
- Slow: diagenesis, freeze-thaw, gravity, water table change
Sediments research: excavation
- Methods
- Disturbances
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