Folding at Broadhaven

Pembrokeshire, SW Wales

​

One of The Geological Society's 100 Great Geosites. Asymmetric folds in interbedded Carboniferous siltstones, shales and coal horizons are cut here by a number of northward-propagating thrusts. This classic structure has been studied in some detail (e.g. Williams and Chapman,1983) as it provides an excellent outcrop example to examine the interplay between faulting and folding during deformation. 

 

​

Trevayne

Pembrokeshire, SW Wales

​

Large-scale harmonic fold within  Carboniferous siltstones, shales and coal horizons. Close inspection of the fold core reveals several low offset thrust segments which probably formed to accommodate the relatively tight interlimb angle here. The cross-section below shows the transition in structural style between this location, Monkstone Point and Saundersfoot. 

Trevayne

Pembrokeshire, SW Wales

​

Large-scale harmonic fold within  Carboniferous siltstones, shales and coal horizons. Close inspection of the fold core reveals several low offset thrust segments which probably formed to accommodate the relatively tight interlimb angle here. The cross-section below shows the transition in structural style between this location, Monkstone Point and Saundersfoot. 

  • Home

  • Map

  • Outcrops

    • Carbonates
    • Clastics
    • Crystalline rocks
    • Folding & fracturing
    • Faults
    • Sedimentary
    • Unconformities & cross-cutting
  • Hand samples

    • Old Red Sandstone - Stonehaven
  • Virtual field guides & exercises

    • Pembrokeshire
    • NW Highlands
  • Contribute

  • About

  • More...

    Use tab to navigate through the menu items.

    Faults

    Broadhaven
    Broadhaven

    Pembrokeshire, SW Wales

    Chenaillet Shear zone
    Chenaillet Shear zone

    Alps, E France

    Clashach Fault
    Clashach Fault

    Moray, NE Scotland

    Glarus Thrust
    Glarus Thrust

    Alps, E Switzerland

    Mokstone Point
    Mokstone Point

    Pembrokeshire, SW Wales

    Saundersfoot
    Saundersfoot

    Pembrokeshire, SW Wales

    St Ann's
    St Ann's

    Pembrokeshire, SW Wales

    Trevayne
    Trevayne

    Pembrokeshire, SW Wales

    West Angle Bay
    West Angle Bay

    Pembrokeshire, SW Wales

    Faults 2 - next page 

    • Twitter
    Contact