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

More documents

Recommendations

Info

A.106 Method of SELF determination applied to sample 12 ................................................234 A.107 Granplot analysis of sample 050505-03A...................................................................235 A.108 Method of SELF determination applied to sample 050505-03A................................236 A.109 Granplot analysis of sample 050505-03B...................................................................237 A.110 Method of SELF determination applied to sample 050505-03B ................................238 A.111 Granplot analysis of sample D....................................................................................239 A.112 Method of SELF determination applied to sample D .................................................240 A.113 Granplot analysis of sample C ....................................................................................241 A.114 Method of SELF determination applied to sample C .................................................242 A.115 Granplot analysis of sample G....................................................................................243 A.116 Method of SELF determination applied to sample G .................................................244 A.117 Granplot analysis of sample 011106-09......................................................................245 A.118 Method of SELF determination applied to sample 011106-09...................................246 A.119 Granplot analysis of sample 011106-10......................................................................247 A.120 Method of SELF determination applied to sample 011106-10...................................248 A.121 Granplot analysis of sample F.....................................................................................249 A.122 Method of SELF determination applied to sample F..................................................250 A.123 Granplot analysis of sample B ....................................................................................251 A.124 Method of SELF determination applied to sample B .................................................252 A.125 Granplot analysis of sample A....................................................................................253 A.126 Method of SELF determination applied to sample A .................................................254 A.127 Granplot analysis of sample E ....................................................................................255 A.128 Method of SELF determination applied to sample E..................................................256 xviii
ABSTRACT The goal of this investigation was to determine whether highly accurate sampling and dating methods could be employed to develop a high-resolution history of barrier evolution and sea-level change. The focus of the study was St. Vincent Island, an undeveloped barrier island beach ridge plain in the northeastern Gulf of Mexico. The island consists of more than 100 beach ridges organized into a dozen groups or sets based on their topographic expression and geographic pattern. These ridges represent sequential paleo-shoreline positions over the 4000+ year history of the island. Given the long-term tectonic stability of the northern Gulf of Mexico throughout the Quaternary, the island holds the potential for a unique high-resolution chronology of mid- to late-Holocene sea-level change. The sampling of the beach ridges by means of trenches, rather than just cores, allowed for the collection of basal deposits as well as visual confirmation of the origin and structure of the ridges. Ground penetrating radar (GPR) profiles confirmed the origin and structure of the ridges. Based on these techniques it is evident that the beach ridges on the island were built by swash processes rather than by storms. The direct dating of quartz grains collected from the base of several of the islands beach ridges via optically stimulated luminescence dating (OSL) provided an accurate measure of the depositional ages of the ridges. The ridges on St. Vincent Island have ages ranging from zero to 4,100 years, with the oldest ridges on the north side of the island and the youngest ridges on the southeast side of the island. These ages can be correlated with the most recent sea level curve produced for the northern Gulf of Mexico. These ages have also been used in conjunction with topographic maps, leveling or topographic profile surveys and LIDAR data, to calculate the rates of beach ridge plain progradation and beach ridge formation over time. Results show that during times of sea level fall, the progradation rates on St. Vincent Island were relatively fast while during times of sea level rise, rates were considerably slower. The result of this project is a better and more detailed understanding of the influence of sea-level change on barrier island development. xix
Page 1 and 2: THE FLORIDA STATE UNIVERSITY COLLEG
Page 3 and 4: ACKNOWLEDGEMENTS I would like to th
Page 5 and 6: 4. RESULTS Laboratory Analyses ....
Page 7 and 8: LIST OF FIGURES 1.1 Location map of
Page 9 and 10: preheating is carried out on a heat
Page 11 and 12: 4.17 Site SVI 023. a) Trench. b) Sa
Page 13 and 14: 4.38 Location relative to the Apala
Page 15 and 16: A.37 Granplot analysis of sample 05
Page 17: A.83 Granplot analysis of sample 05
Page 21 and 22: 4) To further develop Optically Sti
Page 23 and 24: the rate of erosion or deposition a
Page 25 and 26: esult of the buildup of offshore ba
Page 27 and 28: Recent studies of barriers using Gr
Page 29 and 30: and, therefore, sea level) (Dorsey,
Page 31 and 32: Holocene Sea Level Over 900 Holocen
Page 33 and 34: first is that sea level rose steadi
Page 35 and 36: Figure 1.2. Beach ridge sets on St.
Page 37 and 38: -100 Figure 1.4. Pleistocene glacia
Page 39 and 40: Figure 1.6. The Apalachicola River
Page 41 and 42: Figure 1.8. Global sea-level histor
Page 43 and 44: K and L have crest elevations of ap
Page 45 and 46: Geoarchaeology The earliest inhabit
Page 47 and 48: Oyster Pond Figure 2.1. Infrared or
Page 49 and 50: Figure 2.3. St. Vincent Island shor
Page 51 and 52: Pickalene Middens Paradise Point Si
Page 53 and 54: At each vibracore or trench locatio
Page 55 and 56: luminescence signal equivalent to t
Page 57 and 58: Application of OSL to Coastal Studi
Page 59 and 60: atio between the first and the fift
Page 61 and 62: Topographic Surveying Topographic s
Page 63 and 64: time elapsed between when this ener
Page 65 and 66: a) b) Figure 3.1. a) Collecting a v
Page 67 and 68: Increasing energy T CONDUCTION BAND
Page 69 and 70:
Figure 3.5. Sample removed from lar
Page 71 and 72:
Figure 3.7. Location of samples col
Page 73 and 74:
Figure 3.9. Basis of airborne LIDAR
Page 75 and 76:
Sample Sites CHAPTER 4 RESULTS A to
Page 77 and 78:
SVI005 This site is located just we
Page 79 and 80:
collapsed the trench. Therefore, a
Page 81 and 82:
SVI025 This site is located within
Page 83 and 84:
m and 3.7 m respectively. A cross s
Page 85 and 86:
Vincent Island has changed little o
Page 87 and 88:
(sorting). Standard deviation decre
Page 89 and 90:
4,100 and 3,500 years ago. The corr
Page 91 and 92:
Table 4.1 Continued Site Samples Be
Page 93 and 94:
Table 4.3. Measured elevations of S
Page 95 and 96:
Table 4.5. Application of Tanner’
Page 97 and 98:
Table 4.7. OSL age calculations usi
Page 99 and 100:
Table 4.9. Paleosealevel position e
Page 101 and 102:
Figure 4.2. Example of a trench thr
Page 103 and 104:
Figure 4.5. Site SVI 003. Trench ex
Page 105 and 106:
a) b) 050505-01E 050505-01K 050505-
Page 107 and 108:
a) b) 050505-04C 050505-04A Figure
Page 109 and 110:
Figure 4.13. Site SVI 015. Vibracor
Page 111 and 112:
a) b) 011006-15 011006-16 Figure 4.
Page 113 and 114:
a) b) 011106-08 011106-07 011106-10
Page 115 and 116:
Figure 4.21. Dutch gouge-auger core
Page 117 and 118:
Figure 4.23. Line A-A’ represents
Page 119 and 120:
Elevation (m) NAVD 88 5.00 4.50 4.0
Page 121 and 122:
1200 +/- 100 yr 102 Figure 4.27. GP
Page 123 and 124:
0.65 Set C 0.6 0.55 0.5 Set A 0.45
Page 125 and 126:
6 Set B Set C Set E 5 Set A Set F S
Page 127 and 128:
0.7 Set C 0.6 Set A 0.5 Set E Set F
Page 129 and 130:
ENVIRONMENTS OF DEPOSITION -- SKEWN
Page 131 and 132:
mean grain size (phi) 3 2.5 2 1.5 1
Page 133 and 134:
SVI 015 SVI 002 SVI 003 114 SVI 004
Page 135 and 136:
CHAPTER 5 DISCUSSION The beach ridg
Page 137 and 138:
vibracore or trench, both of which
Page 139 and 140:
Skewness can be used to identify th
Page 141 and 142:
island. Another is a C-14 date of 2
Page 143 and 144:
sea level. It was at this point tha
Page 145 and 146:
The fourth hypothesis was that sea-
Page 147 and 148:
APPENDIX A INDIVIDUAL SIEVE ANALYSI
Page 149 and 150:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 151 and 152:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 153 and 154:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 155 and 156:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 157 and 158:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 159 and 160:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 161 and 162:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 163 and 164:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 165 and 166:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 167 and 168:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 169 and 170:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 171 and 172:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 173 and 174:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 175 and 176:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 177 and 178:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 179 and 180:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 181 and 182:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 183 and 184:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 185 and 186:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 187 and 188:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 189 and 190:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 191 and 192:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 193 and 194:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 195 and 196:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 197 and 198:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 199 and 200:
161 170 99.99 99.97 99.9 99.7 99 97
Page 201 and 202:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 203 and 204:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 205 and 206:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 207 and 208:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 209 and 210:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 211 and 212:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 213 and 214:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 215 and 216:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 217 and 218:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 219 and 220:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 221 and 222:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 223 and 224:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 225 and 226:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 227 and 228:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 229 and 230:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 231 and 232:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 233 and 234:
195 204 99.99 99.97 99.9 99.7 99 97
Page 235 and 236:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 237 and 238:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 239 and 240:
201 99.99 99.97 99.9 99.7 99 97.5 9
Page 241 and 242:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 243 and 244:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 245 and 246:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 247 and 248:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 249 and 250:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 251 and 252:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 253 and 254:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 255 and 256:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 257 and 258:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 259 and 260:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 261 and 262:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 263 and 264:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 265 and 266:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 267 and 268:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 269 and 270:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 271 and 272:
233 99.99 99.97 99.9 99.7 99 97.5 9
Page 273 and 274:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 275 and 276:
99.99 99.97 99.9 99.7 99 97.5 95 90
Page 277 and 278:
Berger, G., 1988, Dating quaternary
Page 279 and 280:
Douglas, B., Kearney, M. and Leathe
Page 281 and 282:
Jol, H.M., Peterson, C.D., Vanderbu
Page 283 and 284:
Northwest Florida Water Management
Page 285 and 286:
Stapor, F.W. and Tanner, W.F., 1977
Page 287 and 288:
BIOGRAPHICAL SKETCH Beth Margaret F
show all

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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?