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576 SEDIMENTARY ENVIRONMENTS/Shoreline and Shoreface Deposits Figure Modern and ancient wave dominated coastlines (A) Space shuttle photo showing the linear shoreline and well developed beach ridges in the wave dominated Paraiba Delta, Brazil Image courtesy of Earth Sciences and Image Analysis Laboratory, National Aeronautics and Space Administration Johnson Space Centre (see website at http://eol.jsc.nasa.gov) (B) Modern wave dominated beach (Dutch coast); note the low relief of the foreshore, the dunes on the left hand side, and the ridge and runnel system (arrow) at the lower part of the beach Photograph by Katharine Mathers; reproduced with permission (C) Modern coarse grained, non barred wave dominated shoreline (Isle of Wight, UK); note the well developed berm (arrow) and the steep dip of the foreshore (D) Book Cliffs of eastern Utah, USA, showing world class outcrops of wave dominated shoreface deposits Laterally continuous, white sandstones are foreshore and upper shoreface deposits of successive progradational episodes (E) Upper shoreface and foreshore deposits from the Book Cliffs of eastern Utah The low angle dipping planar laminations were deposited by waves breaking on a beach, and the trough cross stratified sandstones (base of picture) were deposited by shoaling waves in the upper shoreface (pole = 1.2 m) (F) Bioturbated and rippled lower shoreface sandstones (Wasatch Plateau, Utah) (G) Hummocky cross stratified sandstones from the offshore transition zone (Carboniferous; Berwick, UK) (H) Offshore transition zone deposits comprising interbedded hummocky cross stratified sandstones (brown) and siltstones (grey), from the Book Cliffs of eastern Utah (I) Bioturbated, wave rippled heteroliths from the offshore transition zone (Berwick, UK) (J) Bioturbated shoreface deposits Low angle, swaley cross stratification cut by large, vertical Rosselia burrows (Wasatch Plateau, Utah) (K) Modern erosive beach from the Isle of Wight Note the landslip deposits in the midground and the steep, retreating cliffs of chalk in the background The foreshore is covered in a thin veneer of sand reworked from the cliffs
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