. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography SUMMARY 305. FIGURE 47. Types of coastal accumulation forms, according to Zenkovitch (1967). Fringing: a. beach nourished from offshore; h, beach nour- ished from alongshore; c, beach filling an indenta- tion; d, cuspate beach with bilateral nourishment; e, asymmetrical, cuspate beach with bilateral nourishment, attached at one end; (, spit with unilateral nourishment; g, arrow (spit with bilateral nourishment); h, spit on smooth coast; i, bay mouth
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography SUMMARY 305. FIGURE 47. Types of coastal accumulation forms, according to Zenkovitch (1967). Fringing: a. beach nourished from offshore; h, beach nour- ished from alongshore; c, beach filling an indenta- tion; d, cuspate beach with bilateral nourishment; e, asymmetrical, cuspate beach with bilateral nourishment, attached at one end; (, spit with unilateral nourishment; g, arrow (spit with bilateral nourishment); h, spit on smooth coast; i, bay mouth barrier; \, midbay barrier; k, tombolo; \, interisland tombolo, doubly attached; m, looped spit with bilateral nourishment; n, looped spit with unilateral nourishment; o, cuspate spit, detached; p, barrier island; q, barrier island resulting from cutting of inlet; r, estuary mouth swash bar; s, barrier sequence. Symbols: (1) mainland and active cliff; (2) dead cliff and coast with beach; (3, 4) major and minor transport directions. dred meters. On steep, unstable coasts, such masses may periodically slump down the submarine slopes to the basin floor. SUMMARY In considering coastal sediment transport, it is conven- ient to divide the movement of sand into an onshore- offshore component and a coast-parallel component. Onshore-offshore transport occurs in two provinces. In the nearshore province of beach, longshore trough, plunge point bar, and upper shoreface, onshore-offshore transport is controlled by the regime of shoaling and breaking waves. Breakpoint bars are initiated during the waning phases of storms. During the ensuing fair- weather period they tend to migrate onshore, and weld 518. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Atlantic Oceanographic and Meteorological Laboratories; Pacific Oceano
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