Early Military Geology (Structures)

Jordan Green
Mind Map by Jordan Green, updated more than 1 year ago
Jordan Green
Created by Jordan Green about 3 years ago
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Early Military Geology (Structures)
  1. 5 Main Warfare Categories
    1. Tactical & Strategic terrain analysis
      1. Fortifications and Tunnelling
        1. Resource Aquisition
          1. Defence installations
            1. Field Construction & logistics
            2. Fortification Construction
              1. Reasons
                1. Strategic Purpose
                  1. Control/protect borders
                    1. Protect comms. eg- Rivers
                      1. Dominate Region
                        1. Use as an army base
                        2. Defensibility
                          1. Enhancing Natural obsticles
                          2. Security
                            1. No higher ground & good visibility
                            2. Accessibility
                              1. Escape Route
                                1. Onsite water supply (wells)
                                2. Available construction materials
                                  1. Firm Foundations
                                    1. Well drained
                                    2. Ideal site:
                                      1. Isolated Rock Hillock
                                        1. 100-300m diameter
                                          1. Along navigable harbour
                                            1. -Igneous intrusion, resistant outcrop strata, lithological changes, structural fearure (fold/fault), erosion can enhance the afformentioned
                                            2. UK Castles
                                              1. Scottish Castles
                                                1. Edinburgh
                                                  1. Igneous Strata
                                                    1. Carboniferous Volcanic plug, soft materials surrounding
                                                      1. Accentuated by glacial erosion leaving sloping tail
                                                        1. 27.4m deep well
                                                          1. David's tower collapsed into well causing a surrender
                                                        2. Dunbar
                                                          1. Stirling
                                                            1. Great Whin Sill
                                                              1. Permo-Carboniferous quartz dolerite
                                                                1. Bamburgh
                                                                  1. high sill exposure into sediments
                                                                    1. Fell to Yorkists due to gunpowder
                                                                    2. Dunstanburgh
                                                                      1. built on prominent headland
                                                                        1. Sill intruding sediments
                                                                        2. Fault weakness forms harbour
                                                                    3. English Castles
                                                                      1. Beeston
                                                                        1. built on triassic sandstone-
                                                                          1. 150m above cheshire plane
                                                                            1. 124m deep well
                                                                            2. Royalists captured scaling crag at night
                                                                            3. harlech
                                                                              1. built on an anticline known as the harlech dome
                                                                                1. Caledonian Orogeny
                                                                                  1. Greywackes
                                                                                    1. Area where the castle is built is free of boulder clay
                                                                                  2. Windsor
                                                                                    1. built on Upper chalk anticline
                                                                                      1. Surrounded by london clay
                                                                                        1. Thames erosion caused castle to be 30m high
                                                                                        2. 3 wells 50m deep
                                                                                        3. Corfe
                                                                                          1. Chalk monocline
                                                                                            1. River N, W & S
                                                                                        4. Summary
                                                                                          1. Took advantage of local geology/topography
                                                                                            1. Engineering extending natural features
                                                                                              1. used access & comm routes effectively
                                                                                                1. reliable water supplies
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