@article {2464,
	title = {The role of glacio-eustasy in sequence formation: Mid-Atlantic Continental Margin, USA},
	journal = {Marine Geology},
	volume = {277},
	year = {2010},
	month = {Jan-11-2010},
	pages = {31 - 47},
	abstract = {Previous studies of the Mid-Atlantic Continental Margin had shown the lack of correlation between Pleistocene glacio-eustatic oscillations and sequence boundaries. This study documents late Pleistocene to Holocene paleoenvironments within a seismic stratigraphic sequence in order to characterize sequence formation and the development of unconformities in response to glacio-eustatic oscillations. The data, high-resolution CHIRP subbottom profiling and 28 vibracores, were collected in water depths of 38 m to 145 m as part of the R/V Endeavor cruise 370 survey to the Mid-Atlantic Continental Margin. Sediment sources, sedimentary and seismic facies associated with the last major glaciation, and oxygen isotope stages OIS 5 to OIS 1 were examined and a chronology was constructed from mollusk assemblages of intertidal origin that allowed tracking the paleoshoreline from 19 to 6 ka BP.

The maximum extent of the Last Glacial Maximum (LGM) paleoshoreline at 17 ka BP was documented near the 120 m modern isobath. The shoreline was marked by sediment mounds up to 5 m high and troughs 15 m deep and 1 km wide (interpreted as shoreface and tidal inlet or lagoons) formed from 17 to 15 ka BP. Five kilometers seaward from the LGM shoreline and the head of the Hudson Canyon is a wedge-shaped feature interpreted as a lowstand delta. Sediments older than the last glacial, possibly OIS 3 or OIS 5, onlap a basal unconformity. We correlate this unconformity to a previously identified sequence boundary.

Approximately 20 m to 30 m of sediment accumulated on the outer shelf NE of the Hudson Canyon during the last glacial and little deposition has occurred since ~ 11 ka BP. The modern outershelf is covered by ~ 1 m of mollusk-rich glauconitic sand deposited from latest Pleistocene to early Holocene, 15 to 11 ka BP. These results showed a close correspondence between depositional environments and glacio-eustasy but sequence development and sequence boundary formation appeared to be influenced by the incomplete filling of accommodation space due to poor preservation during OIS 2 and low accumulation during the Holocene.},
	keywords = {Hudson Canyon; Hudson Shelf Valley, Last glacial maximum, Mid-Atlantic Continental Margin, paleoshoreline, sequence stratigraphy},
	issn = {00253227},
	doi = {10.1016/j.margeo.2010.08.009},
	url = {http://linkinghub.elsevier.com/retrieve/pii/S0025322710002331http://api.elsevier.com/content/article/PII:S0025322710002331?httpAccept=text/xmlhttp://api.elsevier.com/content/article/PII:S0025322710002331?httpAccept=text/plain},
	author = {McHugh, Cecilia M. and Hartin, Corinne A. and Mountain, Gregory S. and Gould, Helene M.}
}
@article {2111,
	title = {Pleistocene chronology of continental margin sedimentation: New insights into traditional models, New Jersey},
	journal = {Marine Geology},
	volume = {186},
	year = {2002},
	note = {582qnTimes Cited:33
Cited References Count:89
},
	month = {Jul 10},
	pages = {389-411},
	abstract = {Commonly accepted models for the evolution of continental margins link sediment erosion, transport and deposition to eustasy. To test these models, we constructed an oxygen isotope record from 520 m of Pleistocene sediment recovered by the Ocean Drilling Program Leg 174A from the New Jersey continental slope. The delta(18)O record was calibrated to SPECMAP oxygen isotope time scale [Imbrie et al. (1984), in: Berger et al. (Eds.), Milankovitch and Climate, 269-305] with radiocarbon ages, nannoplankton biostratigraphy, magnetostratigraphy, and opal and calcium carbonate stratigraphy. Sixteen glacial/interglacial fluctuations of global ice volume have been recorded in the Pleistocene: oxygen isotope stages (OIS) 1 (partial), 2-4, 5 (partial) and 8 throughout 18. Contrary to predicted sedimentation models, a classification of mass-wasting deposits, based on variations in the styles of soft-sediment deformation and grain size, shows that: (1) mass-wasting is not restricted to glacial times but is present during both glacial and interglacial stages; (2) glacial stages are dominated by fine-grained sediments some of which were deposited by gravity flows; and (3) the transitions from glacial to interglacial stages are characterized by the deposition of coarse sands. The sedimentary record shows large-scale trends that do not fit the traditional models of higher glacial sedimentation rates since there is no consistent variation in sediment accumulation between glacial and interglacial stages. Instead there are longer-term sedimentation patterns. Uniform sedimentation rates of 62 cm/kyr characterize the early middle Pleistocene (OIS 12-18), followed by varying rates from low to very high for three consecutive time periods: OIS 11 to 9 (98-560 cm/kyr), OIS 8 (52-560 cm/kyr), and OIS 5 to 2 (37-353 cm/kyr). Each of these depositional units is contained within one seismic-stratigraphic sequence and bounded by sequence boundaries. Their deposition was influenced by the supply of sediment rather than eustasy. Sediment supply was modulated by: (1) the transition from the dominance of obliquity to that of eccentricity (OIS 18-12 to OIS 11-1); and (2) the proximity of the ice sheet (located similar to 150 km away from the paleoshoreline during the last glacial maximum). (C) 2002 Elsevier Science B.V. All rights reserved.},
	keywords = {baltimore canyon, coastal-plain, glacioeustasy, global sea-level, isotopes, late quaternary sedimentation, mass-wasting, new-york, north-atlantic, northwest atlantic, passive margin, Pleistocene, sedimentary processes, sequence stratigraphy, shelf, slope},
	isbn = {0025-3227},
	doi = {10.1016/S0025-3227(02)00198-6},
	author = {McHugh, C. M. G. and Olson, H. C.}
}
