between 11,000 and 5,000 BP , then slowing down toward 5,000 BP. A delay of 

 1,000 to 2,000 years of this transgression compared with that of the nearby 

 west-African margin is attributed to an oscillation of the oceanic geoid sur- 

 face . (Authors) . 



112 GONZALES, M. A., WEILER, N. E., and GUIDA, N. G. 1986. "Late 

 Pleistocene Transgressive Deposits from 33° S.L. to 40° S.L., Argentina 

 Republic," Journal of Coastal Research . Special Issue No. 1, pp 39-46. 



A synthesis of results for Late Pleistocene paleoeustatism between 

 33°10' and 40°00 ' S.L. in several areas of the Argentina Republic is pre- 

 sented. Evidence of two transgressive episodes of Late Pleistocene ages was 

 found. The oldest episode is tentatively correlated with the Sangamon Inter- 

 glacial, whereas the youngest, with C" dates ranging between 38,500+3,000 BP 

 and 25,700+560 BP, is tentatively assigned to a late Interstadial during the 

 Wisconsinan ("Mid-Wisconsinan Interstadial"). For both transgressive epi- 

 sodes, the evidence indicates a palaeosea- level slightly higher than present. 

 (Authors) . 



113 GORNITZ, v., and KANCIRUK, P. 1989. "Assessment of Global Coastal 

 Hazards From Sea-Level Rise," Proceedings of Coastal Zone '89 . Vol 2, pp 1345. 



A global coastal hazards data base that contains topographic, geologic, 

 geomorphic , erosional and subsidence information is being developed in order 

 to predict the coastal segments at greatest risk to a rise in sea-level caused 

 by future climate warming. High risk areas are characterized by low coastal 

 relief, an erodible substrate, past and present evidence of subsidence, 

 extensive shoreline retreat and high wave/tide energies. Data have been 

 assembled for the U.S.A. and are being extended to the rest of North America. 

 Summaries are presented for coastal relief, lithologic types and landf orms , 

 relative sea level changes, tide ranges, and wave heights. Several high risk 

 areas have been tentatively identified and include the central Gulf Coast, 

 South Florida, the North Carolina Outer Banks, southern Delmarva peninsula, 

 and the San Francisco Bay area. (Modified Abstract). 



114 GORNITZ, v., and LEBEDEFF, S. 1987. "Global Sea-Level Changes During 

 the Past Century," Nummedal , D., Pilkey, 0. H., and Howard, J. D., eds . , Sea- 

 Level Fluctuations and Coastal Evolution . Special Publication No. 41, Society 

 of Economic Paleontologists and Mineralogists, Tulsa, OK, pp 3-16. 



An updated and expanded data base of tide-gage measurements and late 

 Holocene sea- level indicators is used to obtain a revised global average sea- 

 level rise, corrected for long-range glacio-isostatic and/or tectonic trends. 

 The global average is determined using two methods: (1) the arithmetic mean 

 of all stations, and (2) a new technique which weights contributing stations 

 by distance from a given cell and relative coastal area. A least-squares 

 regression line is then fitted to the composite regional sea- level curve. In 



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