Shorefaces - Trace Fossils as Indicators of Sedimentary Environments - page 562

FIGURE 9 Foreshore deposits. (A) Upper shoreface cross-stratified sandstones abruptly overlain
by low-angle planar-parallel-stratified sandstones reflecting swash-zone cross-stratification.
(B) Pervasively burrowed (BI ¼ 5) sandstone with a monospecific suite of Macaronichnus segrega-
tis (arrows) with beds of well-segregated granule and fine-pebble conglomerate. (C) Cross-stratified
to planar-bedded sandstone of the foreshore, with M. segregatis (arrows) and Skolithos ( S ), locally
cross-cut by roots (rt) that subtend from overlying coastal-plain deposits.
lower-middle shoreface complex from the upper shoreface-foreshore complex.
Lateral shift of these channels, coupled with seaward progradation of the entire
shoreface system, facilitates the widespread development of this erosional sur-
face. A similar relationship was noted from barred systems in Eastern Long
Island, New York ( Shipp, 1984 ) and Kouchibouguac Bay, New Brunswick
( Greenwood and Mittler, 1985 ), and was applied to the Cadotte Member of
the Peace River Formation of Alberta ( Rahmani and Smith, 1988 ).