Copyright by Nysha Chaderton 2009 - The University of Texas at ...

More documents

Recommendations

Info

MAB locality S3 beds of Facies 3 along with Tb, Tc beds and Te beds of Facies 5 are the most common individual beds observed at this location. Channel fill facies associations are dominated by stacked Facies 3 coarse grained beds within the system that overlie erosive channel bases. The channel margin facies associations are comprised of thin bedded turbidites of Facies 5. Because the beds at this outcrop are almost vertical, lateral relationships cannot be determined. This section is a vertical succession of alternating channel fill and channel margin facies associations (Figure 2.35). Turner’s Hall Ridge Description This location consists of ~ 70 m of continuous exposure. Because there appears to be little lateral variation in lithology or bed architecture across the 60 m width of outcrop, only one section was measured to characterize the location (Figure 2.36). Sandstone beds vary from medium-grained (Figure 2.37) to fine-grained and are thickest at the base of the section with a maximum thickness of 420 cm. Sand beds are capped with ripple- laminated, fine-grained sands and silts. Minor loading and planar lamination is observed through out the section. There is no very coarse-grained sand or conglomerate component and no erosive bases were observed. The first 20 m of the section is dominated by S3 (Facies 3) beds that are interbedded with Tb, Tc and minor Td beds (Facies 4 and 5). Up section S3 are rare and Tc and Td beds make up the bulk of the section. (Figure 2.38 a-e). This section is distinct from the Chalky Mount Shale Ridge and Lower Walker’s Ridge sections as it has a higher sand content, but does not show the scoured bases, intermittent very coarse grained sands seen at the other two outcrops. 19
Lobes are non-channelized bodies, 3 to 25 m thick composed of well-graded to thick-bedded classic turbidites in which erosive bases are uncommon (Stowe, Reading and Collinson, 1996). Based on this description, the ITR succession is interpreted to represent a lobe deposit. Spa Hill Description Two stratigraphic sections were measured to document the vertical stacking of stratigraphic units and the lateral relationships between beds at the Spa Hill Fold (SHF) exposure. The entire outcrop is only 35 m in length. The SHF section is ~ 13 meters thick and sandstones vary from very coarse grained to medium grained and are massive and blocky with no fining upward trends (Figure 2.39). 20
Page 1 and 2: Copyright by Nysha Chaderton 2009
Page 3 and 4: Sedimentation within the Tobago For
Page 5 and 6: Acknowledgements I would like to th
Page 7 and 8: Table of Contents List of Tables ..
Page 9 and 10: List of Tables Table 2.1: Latitudes
Page 11 and 12: Figure 2.14: Planar parallel lamina
Page 13 and 14: Figure 2.42: Coarse, cobble and peb
Page 15 and 16: Figure A.3a: Chalky Mount Ridge mea
Page 17 and 18: 1. Development history of the south
Page 19 and 20: Formation. This interpretation requ
Page 21 and 22: DATA AND METHODOLOGY Extensive work
Page 23 and 24: DESCRIPTIVE METHODOLOGY Each sectio
Page 25 and 26: Two or more channel complexes stack
Page 27 and 28: These poorly sorted sands are later
Page 29 and 30: East Coast Road Although the East C
Page 31 and 32: succession of interlaminated siltst
Page 33: Mount All The beds of the Mount All
Page 37 and 38: Sandy units are the most resistant
Page 39 and 40: SUMMARY DEPOSITIONAL SETTING OF THE
Page 41 and 42: Chapter Three: Petrographic Analysi
Page 43 and 44: had not been buried deeply or long
Page 45 and 46: Feldspars Calcium Plagioclase Felds
Page 47 and 48: Authigenic Minerals Authigenic mine
Page 49 and 50: amounts of chlorite and kaolinite c
Page 51 and 52: Sample: WRA 16 This sample was take
Page 53 and 54: cementation is observed. A number o
Page 55 and 56: COMPARISON WITH PREVIOUS WORK Punch
Page 57 and 58: K feldspar preservation to slightly
Page 59 and 60: CONCLUSIONS 1. No quartz cementatio
Page 61 and 62: The highest point of the island, is
Page 63 and 64: STRATIGRAPHIC FRAMEWORK ONSHORE TO
Page 65 and 66: STRUCTURAL FRAMEWORK OF THE BARBADO
Page 67 and 68: Sandy material is primarily quartz
Page 69 and 70: esult of extension caused by flexur
Page 71 and 72: 1994). The origin of the Oceanic Fo
Page 73 and 74: Oligocene-age sediments are deposit
Page 75 and 76: The observation of channel geometri
Page 77 and 78: Pudsey, (1982) interpreted smectite
Page 79 and 80: The interpretation of the Scotland
Page 81 and 82: Figure 1.2: Convergent margins arou
Page 83 and 84: NSF Study Lines Grenada St. Kitts S
Page 85 and 86:
Figure 2.2: Generalized vertical se
Page 87 and 88:
Figure 2.4: Detailed Geological map
Page 89 and 90:
Figure 2.6: Photographs and illustr
Page 91 and 92:
Figure 2.8: Bedsets on the channel
Page 93 and 94:
S 50 m Figure 2.10: Photo-panorama
Page 95 and 96:
Figure 2.13: Laminated silt and mud
Page 97 and 98:
Figure 2.16a: Measured section at C
Page 99 and 100:
Figure 2.16c: Measured section at C
Page 101 and 102:
Figure 2.18: Correlation of section
Page 103 and 104:
Figure 2.21: Parallel laminated sil
Page 105 and 106:
Wach, Vincent and Chaderton March 2
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Figure 2.24: Channel element identi
Page 113 and 114:
WRB S N Fresh rock face exposed by
Page 115 and 116:
Figure 2.28: Photograph of Diplocra
Page 117 and 118:
Figure 2.31: Conglomerate with eros
Page 119 and 120:
Figure 2.33: Thalassinoides trace f
Page 121 and 122:
Figure 2.35: Mount All measured str
Page 123 and 124:
Figure 2.37: Medium grained sand be
Page 125 and 126:
Figure 2.38b: Inner Turner’s Hall
Page 127 and 128:
Figure 2.38d: Inner Turner’s Hall
Page 129 and 130:
Figure 2.39: Spa Hill measured stra
Page 131 and 132:
Juniper Ridge, California Scotland
Page 133 and 134:
Figure 3.1: Fractured quartz grain
Page 135 and 136:
SGRF 1C SGRF 9C Figure 3.5: Measure
Page 137 and 138:
Figure 3.8: Photo of sample SGRF 11
Page 139 and 140:
Figure 3.10: Photo of sample SGRF 1
Page 141 and 142:
Figure 3.12: Photo of sample WRA 16
Page 143 and 144:
Figure 3.14: Photo of sample WRB 8
Page 145 and 146:
Figure 3.16: Photo of sample ITR 9
Page 147 and 148:
Figure 3.19: Photo of sample CMRA s
Page 149 and 150:
Figure 3. 23: Composition of Scotla
Page 151 and 152:
Figure 4.1: Base map showing seismi
Page 153 and 154:
Figure 4.3: Channels within Unit Fi
Page 155 and 156:
Figure 4.5: Seismic reflection prof
Page 157 and 158:
Figure 4.7 Isochron maps of the old
Page 159 and 160:
Figure 4.9: Illustration of the Spe
Page 161 and 162:
Figure 4.11: Illustration of Hypoth
Page 163 and 164:
necessary to clear a path. Keep to
Page 165 and 166:
2006 Figure A.2a: Lidar Ridge measu
Page 167 and 168:
Figure A.3b: Chalky Mount Ridge mea
Page 169 and 170:
2006 Figure A.4a: Chalky Mount Ridg
Page 171 and 172:
2006 Figure A.4c: Chalky Mount Ridg
Page 173 and 174:
2006 Figure A.6: Chalky Mount Ridge
Page 175 and 176:
Figure A.7b: Measured Section of Ch
Page 177 and 178:
2006 Figure A.8a: Sleeping Giant Ri
Page 179 and 180:
2006 Figure A.9: Sleeping Giant Rid
Page 181 and 182:
2006 Figure A.11: Sleeping Giant Ri
Page 183 and 184:
Figure A.13a: Sleeping Giant Ridge
Page 185 and 186:
2006 Figure A.14a: Coast Road Below
Page 187 and 188:
2006 Figure A.14c: Coast Road Below
Page 189 and 190:
2006 Figure A.14e: Coast Road Below
Page 191 and 192:
2006 Figure A.14g: Coast Road Below
Page 193 and 194:
2006 Figure A.15: Ermy Bourne Ridge
Page 195 and 196:
2006 Figure A.17: Spa Hill Fold Mea
Page 197 and 198:
2006 Figure A.19: Ermy Bourne Ridge
Page 199 and 200:
Figure A.20b: Walkers Ridge Measure
Page 201 and 202:
Figure A.21: Walkers Ridge Measured
Page 203 and 204:
Figure A.22b: Walkers Ridge Measure
Page 205 and 206:
2007 Figure A.23b: Inner Turner’s
Page 207 and 208:
2007 Figure A.23d: Inner Turner’s
Page 209 and 210:
Framework grains Quartz Feldspar Ro
Page 211 and 212:
CRIMES, T.P., 1977, Trace fossils o
Page 213 and 214:
MONTGOMERY, S.L., BARKER, C.E., SEA
Page 215 and 216:
RICHARDS, M., BOWMAN, M., and READI
Page 217 and 218:
WEBER, J.C., DIXON, T.H., DEMETS, C
show all

Copyright by Nysha Chaderton 2009 - The University of Texas at ...

Create successful ePaper yourself

Delete template?

Save as template?