@article {2489,
	title = {Relative sea-level change in northeastern Florida (USA) during the last \~{}8.0~ka},
	journal = {Quaternary Science Reviews},
	volume = {142},
	year = {2016},
	month = {Jan-06-2016},
	pages = {90 - 101},
	abstract = {An existing database of relative sea-level (RSL) reconstructions from the U.S. Atlantic coast lacked valid sea-level index points from Georgia and Florida. This region lies on the edge of the collapsing forebulge of the former Laurentide Ice Sheet making it an important location for understanding glacio-isostatic adjustment and the history of ice-sheet melt. To address the paucity of data, we reconstruct RSL in northeastern Florida (St. Marys) over the last \~{}8.0 ka from samples of basal salt-marsh sediment that minimize the influence of compaction. The analogy between modern salt-marsh foraminifera and their fossil counterparts preserved in the sedimentary record was used to estimate paleomarsh surface elevation. Sample ages were determined by radiocarbon dating of identifiable and in-situ plant macrofossils. This approach yielded 25 new sea-level index points that constrain a \~{}5.7 m rise in RSL during the last \~{}8.0 ka. The record shows that no highstand in sea level occurred in this region over the period of the reconstruction. We compared the new reconstruction to Earth-ice models ICE 6G-C VM5a and ICE 6G-C VM6. There is good fit in the later part of the Holocene with VM5a and for a brief time in the earlier Holocene with VM6. However, there are discrepancies in model-reconstruction fit in the early to mid Holocene in northeastern Florida and elsewhere along the Atlantic coast at locations with early Holocene RSL reconstructions. The most pronounced feature of the new reconstruction is a slow down in the rate of RSL rise from approximately 5.0 to 3.0 ka. This trend may reflect a significant contribution from local-scale processes such as tidal-range change and/or change in base flow of the St. Marys River in response to paleoclimate changes. However, the spatial expression (local vs. regional) of this slow down is undetermined and corroborative records are needed to establish its geographical extent.},
	keywords = {Foraminifera, Georgia, Holocene, Salt marsh, St. Marys River},
	issn = {02773791},
	doi = {10.1016/j.quascirev.2016.04.016},
	url = {http://linkinghub.elsevier.com/retrieve/pii/S0277379116301275http://api.elsevier.com/content/article/PII:S0277379116301275?httpAccept=text/xmlhttp://api.elsevier.com/content/article/PII:S0277379116301275?httpAccept=text/plain},
	author = {Hawkes, Andrea D. and Kemp, Andrew C. and Donnelly, Jeffrey P. and Horton, Benjamin P. and Peltier, W. Richard and Cahill, Niamh and Hill, David F. and Ashe, Erica and Alexander, Clark R.}
}
@article {329,
	title = {Sediment accumulation on the Southern California Bight continental margin during the twentieth century},
	journal = {Special Paper - Geological Society of America},
	volume = {454},
	year = {2009},
	note = {id: 855; Editor: Lee, Homa J; Normark, William R References: 52; illus. incl. 2 tables, sketch maps Latitude:N332000,N340000 Longitude:W1183000,W1193000Y},
	pages = {69-87},
	abstract = {Sediment discharged into the portion of the Southern California Bight extending from Santa Barbara to Dana Point enters a complex system of semi-isolated coastal cells, narrow continental shelves, submarine canyons, and offshore basins. On both the Santa Monica and San Pedro margins, (super 210) Pb accumulation rates decrease in an offshore direction (from approximately 0.5 g cm (super -2) yr (super -1) to 0.02 g cm (super -2) yr (super -1) ), in concert with a fining in sediment grain size (from 4.50phi to 8.50phi ), suggesting that offshore transport of wave-resuspended material occurs as relatively dilute nepheloid layers and that hemipalegic sedimentation dominates the supply of sediment to the outer shelf, slope, and basins. Together, these areas are effectively sequestering up to 100\% of the annual fluvial input. In contrast to the Santa Monica margin, which does not display evidence of mass wasting as an important process of sediment delivery and redistribution, the San Pedro margin does provide numerous examples of failures and mass wasting, suggesting that intraslope sediment redistribution may play a more important role there. Basin deposits in both areas exhibit evidence of turbidites tentatively associated with both major floods and earthquakes, sourced from either the Redondo Canyon (San Pedro Basin) or Dume Canyon (Santa Monica Basin). On the Palos Verdes shelf, sediment-accumulation rates decrease along and across the shelf away from the White{\textquoteright}s Point outfall, which has been a major source of contaminants to the shelf deposits. Accumulation rates prior to the construction of the outfall were approximately 0.2 g cm (super -2) yr (super -1) and increased 1.5-3.7 times during peak discharges from the outfall in 1971. The distal rate of accumulation has decreased by approximately 50\%, from 0.63 g cm (super -2) yr (super -1) during the period 1971-1992 to 0.29 g cm (super -2) yr (super -1) during the period 1992-2003. The proximal rate of accumulation, however, has only decreased approximately 10\%, from 0.83 g cm (super -2) yr (super -1) during the period 1971-1992 to 0.73 g cm (super -2) yr (super -1) during the period 1992-2003. Effluent-affected sediment layers on the Palos Verdes shelf can be identified in seabed profiles of naturally occurring (super 238) U, which is sequestered in reducing sediments. The Santa Clara River shelf, just north and west of the Santa Monica and San Pedro margins, is fine-grained and flood-dominated. Core profiles of excess (super 210) Pb from sites covering the extent of documented major flood deposition exhibit evidence of rapidly deposited sediment up to 25 cm thick. These beds are developing in an active depocenter in water depths of 30-50 m at an average rate of 0.72 g cm (super -2) yr (super -1) . Budget calculations for annual and 50-yr timescale sediment storage on this shelf shows that 20\%-30\% of the sediment discharge is retained on the shelf, leaving 70\%-80\% to be redistributed to the outer shelf, slope, Santa Barbara Basin, and Santa Monica Basin.},
	issn = {0072-1077},
	doi = {10.1130/2009.2454(2.4)},
	author = {Alexander, Clark R. and Lee, Homa J.}
}
