the florida state university college of arts and sciences evolution of ...

LIST OF FIGURES
1.1 Location map of St. Vincent Island on the northeastern Gulf of Mexico
coast, Florida, southeastern U.S.A. Inset map shows the chain of barrier
islands and spits of which St. Vincent is a part........................................................................15
1.2 Beach ridge sets on St. Vincent Island. See Figure 1.1 for location
(Source: Stapor, 1973) .............................................................................................................16
1.3 The Florida Platform. The edge of the platform is marked by the west
Florida shelf and slope, which drop into the deep Gulf of Mexico. Note
that Florida occupies approximately half of the carbonate platform.
(Source: USGS, 2001) .............................................................................................................17
1.4 Pleistocene glacial advances and retreats, as recorded in benthic
oxygen isotope records. The record shows the predicted sea level (solid
18
line) and mean ocean O (dashed line), derived from ice volume
histories. (Source: Raymo et al., 2006)...................................................................................18
1.5 Composite sea level curves for the northern Gulf of Mexico. The solid
line adapted from Balsillie and Donoghue (2004) is a comprehensive
compilation of radiocarbon dated sea-level indicators for the northern Gulf
of Mexico. The dashed curve is the global “eustatic” sea-level history
from Red Sea benthic foraminifera data of Siddall et al (2003). .............................................19
1.6 The Apalachicola River drainage basin, northwest Florida. The
boundaries of the basin are shown by the solid black line. (Source:
Northwest Water Management District, 1996). St. Vincent Island is
located in the lower left center of the map...............................................................................20
1.7 Model of beach ridge formation. (Source: Tanner, 1989) .................................................21
1.8 Global sea-level history from 400,000 years to present, based on dated
shoreline indicators from Barbados and New Guinea (symbols) and
oxygen isotope data from marine sediments (solid line). (Source: Lea et al,
2002) ........................................................................................................................................22
2.1 Infrared orthophoto of St. Vincent Island showing the beach ridge
plain that covers the surface of the island (USGS imagery). Location is
shown in Figure 1.1..................................................................................................................28
2.2 Sediment transport rates in the Apalachicola barrier island chain. The
arrows indicate the direction of transport and the numbers represent the
volume (in 10 3 m 3 /yr) of material deposited and eroded. (Source: Stapor,
1973) ........................................................................................................................................29
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