High resolution seismic profiles show two prominent late Quaternary sediment wedges on the outer and middle New Jersey continental shelf. An extensive wedge along the outermost shelf and upper slope, up to 50 m thick, appears to have been deposited on the Hudson Apron during an early melting of the late-Wisconsin Laurentide ice sheet; subsequent southward transport of this sediment occurred during sea level regression, still-stand, and transgression. A mid-shelf sediment wedge, which forms the Fortune shore, probably was deposited during a second melt event, 11 to 12 ka, as sea level was transgressing over the shelf.
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Milliman et al. (1990) studied this question.
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