Tim Fitzharris / Syncline Ridge and Miette Range from Moberly Flats, Jasper National Park, Alberta, Canada

Tim Fitzharris / Syncline Ridge and Miette Range from Moberly Flats, Jasper National Park, Alberta, Canada

Graham Eaton / Folded Carboniferous age sandstone and shale (Culm Measures) in plan view, deformed by compression during the Variscan or Hercynian orogeny, a geologic mountain-building event caused by Late Paleozoic...

Graham Eaton / Folded Carboniferous age sandstone and shale (Culm Measures) deformed by compression during the Variscan or Hercynian orogeny, a geologic mountain-building event caused by Late Paleozoic continental c...

Graham Eaton / An anticline in deformed Carboniferous sandstones and shale (Culm Measures) near Bude, Cornwall, UK, March. These rocks were deformed during the Hercynian or Variscan Orogeny, a mountain building even...

Graham Eaton / Folded Carboniferous age sandstone and shale (Culm Measures) in plan view, deformed by compression during the Variscan or Hercynian orogeny, a geologic mountain-building event caused by Late Paleozoic...

Graham Eaton / Chevron recumbent folding in Carboniferous age sandstone and shale (Culm Measures), deformed by compression during the Variscan or Hercynian orogeny, a geologic mountain-building event caused by Late...

Graham Eaton / An eroded synclinal fold exposed Carboniferous age sandstones and shales. Hartland Quay, Devon, UK, May

Graham Eaton / Chevron folded Carboniferous age sandstone and shale (Culm Measures), deformed by compression during the Variscan or Hercynian orogeny, a geologic mountain-building event caused by Late Paleozoic cont...

Tim Fitzharris / Syncline Ridge and Miette Range from Moberly Flats, Jasper National Park, Alberta, Canada

Tim Fitzharris / Syncline Ridge and Miette Range from Jasper Lake, Jasper National Park, Alberta, Canada

Tim Fitzharris / Syncline Ridge and Miette Range from Moberly Flats, Jasper National Park, Alberta, Canada