Difference between revisions of "Defence structure"
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− | Part of pile defence structure at the site Raasepori castle in Finland. Photo: Sallamaria Tikkanen, Finnish Heritage Agency. | + | Part of pile defence structure at the site Raasepori of castle in Finland. Photo: Sallamaria Tikkanen, Finnish Heritage Agency. |
Revision as of 14:49, 25 March 2021
Defintion
Umbrella term for fortifications that were either purposely constructed in the water or that were once terrestrial and became inundated as a result of sea-level change.
Description
A barrier can consist of oblique or vertical wooden piles, stones or log coffins filled with stones [1] A sea barrier or harbour facility can be integrated in a wider defence structure.
Part of pile defence structure at the site Raasepori of castle in Finland. Photo: Sallamaria Tikkanen, Finnish Heritage Agency.
- ↑ Guide for Archaeological Heritage in Finland: underwater defence structure: http://akp.nba.fi/wiki;vedenalainen-estevarustus