Sedimentary Stratigraphy & Urban Taphonomy
“How Silt Deposition Patterns Map Historic London Trade Routes”
Sedimentary Stratigraphy London Simulator
Rheological modeling & dynamic physical mapping of this topic
Input Control Parameters
Adjusts molecular kinetic movement and thermal agitation coefficients.
Sets the percentage of colloidal particles suspended within the system.
Regulates internal shear resistance and electrostatic clay platelet binding.
Microscopic Particle Lattice
System Calculations
1Tidal Deposition and Siltation Cycles
The River Thames is a highly dynamic tidal estuary. Twice a day, high tides bring in fine London Clay silt, which settles during the brief slack water period. This steady deposition buries and seals discarded items beneath fresh mud layers.
- Slack Water Siltation: Suspended clay particles settle as current drops.
- Burial Speed: Quick burial is essential to protect items from tidal wear.
2Sedimentary Stratigraphy of the Foreshore
Like tree rings, foreshore mud contains distinct stratigraphic layers. Because of tidal erosion, older Tudor and Roman layers are occasionally uncovered, allowing mudlarks to explore historical levels directly.
- Stratigraphic Windows: Tidal flows scour away top mud, revealing old strata.
- Contextual Association: Items found in the same silt layer share historical dates.
3Taphonomy of River Artifacts
Taphonomy studies how objects decay and enter the fossil record. In the Thames, heavy iron nails sink rapidly through fluid silt, while leather and wood float, settling only in calm inlets where fine anaerobic silts accumulate.
- Density Sorting: Heavy metals sink to solid gravel beds beneath.
- Hydrodynamic Sorting: Light, organic items drift to muddy inner bends.