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I "a f IMods Hole '" ~ o c.,,~tlOGR
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) )
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" \ / )
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parent sediment on the eastern oute
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esearch. 5 )
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Res u 1 ts. . . . . . . . . . . . .
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Figure 3.12 Echo-sounding profile (
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Fi gure 6.14 6. 15 7. 1 7.2 7.3 7.4
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\ I ) Table 4. 1 4.2 5.1 5.2 5.3 6.
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CHAPTER I INTRODUCTION The area inv
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) \ .1 Fi gure i. 1. Bathymetry of
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~. ~ 71° 70° tI 68 fJ0 25° 7' 25
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) ) This is expected since most of
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GENERAL DES CRI PT I ON CHAPTE R I
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j
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egi onal contours. An area centered
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this region. However, all of these
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) ì /
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') ) ) /
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'"-, i~ 7t 70° 6f 68 67° 25° 72
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Fig u r e 3. 2 . CON RA D 10 s e is
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sequence corresponds to layered tur
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) . .) Figure 3.3. Map showing domi
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\ )
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"- '''--.- 25° ................. .
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) ) others, 1973), and the upper po
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) Figure 3.5. CONRAD 8 seismic refl
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. Q) 3W/L NOI.L~ l( . (Y CI s. :: 0
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.) Figure 3.6. Idealized profile al
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) ) a: 0 ~ ~ (J L. Z Q) a: ~ lU UJ
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) ) Figure 3.7. CONRAD 10 seismic r
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i- (Y (1 ~:: en or- LL 47
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) ) THE TRANSPARENT LAYER The distr
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Fi gure 3.8. CH A I N 34 s e ism i
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co . (Y (l So :: O' "r- Li 51
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) 53
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) Figure 3.9. CONRAD 10 seismic ref
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0' (V CJ s. :: O' ... LL 55
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\ J ) Figure 3.10. Seismic reflecti
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or- . (V Q) S- :: rn Li 58
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ì ) Figure 3.11. CONRAD 10 seismic
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l UJ .líliiiP',,:... ¡ '"'" ~ ' ~
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) .I Figure 3.12. Echo-soundi ng pr
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N CV OJ s. :: 01 l. 62
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) ) Figure 3.13. CONRAD 10 seismic
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(' r- (' (j $. :: en 'r- LL 64
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) ) GENERAL LITHOLOGY CHAPTER iv TH
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~ , ) Figure 4.1. General lithology
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.'-/ '..-/ AIr 60-8 A II 60-8 An60~
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) )
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average of 80% lutite (~ 2 ~m) and
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) )
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.\ ! ') )
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ì/ )
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10 m2, with an average value of 1.3
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) ) /
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The laminated zones and overlying p
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) )
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\ j )
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) ) Figure 4.7. Graph of carbonate
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) ) z 0 N O~ E I i ,,_.' i." I ." .
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) ì i Figure 4.8. Curves of carbon
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currents have transported many Fora
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increased dissolution (elevated lys
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TABLE 4.1. MINERALOGY OF THE c 2 ~m
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the following peaks and weighting f
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.,1 ì / ) j
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\ J )
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) )
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) )
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Obvi ous ly, di 1 uti on of the nor
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The m i n era log i c a 1 com po si
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gray 1 uti t e s per s i s t n ear
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) )
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TABLE 5.1. AVERAGE RATES OF SEDIMEN
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and thus the T-Z zonation (Fig. 5.1
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) ) )
- Page 164 and 165: TABLE 5.2. AVERAGE RATES OF SEDIMEN
- Page 166 and 167: Cl z: c: l/ l. i- c: Cl z: o OJ IX
- Page 168 and 169: consolidated (A.J. Silva, pers. com
- Page 170 and 171: ) ) _/
- Page 172 and 173: \ ) \ ì ../
- Page 174 and 175: in age, and the ash is probably ass
- Page 176 and 177: ') .I \...../
- Page 178 and 179: 122 must result from mixing with th
- Page 180 and 181: eas twa rd flow of NADW between 150
- Page 182 and 183: whi ch recorded currents for about
- Page 184 and 185: ,) , ,
- Page 186 and 187: ottom photographs in February, 1972
- Page 188 and 189: Several important features were obs
- Page 190 and 191: . \ .' ì ,) ~)
- Page 192 and 193: . ) )
- Page 194 and 195: )j )
- Page 196 and 197: ) )
- Page 198 and 199: , " ) ) ./
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- Page 202 and 203: '\ ) ) J
- Page 204 and 205: I )
- Page 206 and 207: 141 turn north in the western part
- Page 208 and 209: " ) , \ -./)
- Page 210 and 211: . ) ) / )
- Page 212 and 213: 145 bottle spacing. An example is t
- Page 216 and 217: The silicate values plotted against
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- Page 220 and 221: Secti on 1 (Crest) TABLE 6.2. CALCU
- Page 222 and 223: eference level above the crest of t
- Page 224 and 225: \ ) )
- Page 226 and 227: 156 substantial flow not indicated
- Page 228 and 229: 'ì j .)
- Page 230 and 231: ) ) ./
- Page 232 and 233: ) )
- Page 235 and 236: ) \ j Lf ¡ ii~ l1 .. ~õ .. g~ -z
- Page 237: . ) ) Figure 6.10. Progressi ve vec
- Page 240 and 241: oad opposing flows, one to the WNW
- Page 242 and 243: ) .)
- Page 244 and 245: InN 0 ve m b e r, 1 9 7 1, a s e co
- Page 246 and 247: ., J , l -j
- Page 248 and 249: progressive vector diagrams (Fig. 6
- Page 250 and 251: (Fig. 6.13). The strongest currents
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- Page 254 and 255: \ I / \ j
- Page 257 and 258: Figure 6.14 176
- Page 259 and 260: ) ) Greater Antilles Outer Ridge, a
- Page 261 and 262: ) ) Figure 6.15. i 79 Summary of di
- Page 263 and 264: Fig u re 6. i 5 180
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) , ! j INTRODUCTION CHAPTER VI I S
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) ) Figure 7.1. 183 Locati ons of s
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\ . I ) ) Fi gure 7. 1 24° NARES 6
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, ,J / \ j 186 Figure 7.2. Light-sc
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has been di scussed. As poi nted ou
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\ ) l j
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191 Fig. 6. 2) i son 1 y a b 0 u to
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12 pg/liter, compared with an avera
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) -)
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9 u re 7. 4 196
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) .J Figure 7.5. Scanning e 1 e c t
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9 u re 7. 5
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) J thus accounting for this grain
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) _/ single bottom-sediment sample
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) ) concentrations when the weighti
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) ~) ! . 205 Figure 7.6. Relationsh
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~. \~ SAMPLE THICKNESS (p) 0.45 0.0
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" ) ) TABLE 7.2. MINERALOGY OF SUSP
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) / ) Fig u re 7. 7 . 210 X-ray di
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, ~ .. ,) \ ) " u 211 C\ CD C\ ~ (j
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) -) 14 cm/sec. 213 The rate of dep
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) ) J Any extensive erosion on the
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)/ ) ~ PREVIOUS THEORIES CHAPTER VI
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) ) 219 Figure 8.1. Schematic sketc
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ì / \ .) W ZWU0W W -l Cl Cl :i 0 t
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) . ) -~ sediment types and to laye
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) ) there are also other factors wh
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) , ~ 225 Figure 8.2. Synthesis of
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) ) / w zwuow w ~ -l o r- w -l o ~
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'~. ...-- TABLE 8.1. COMPARISON OF
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) \ --) configuration of this pocke
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) )
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) increased flow of AABW westward a
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1) )
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sedi ment was bei ng eroded in the
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, ) .. / )
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) )
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241 the Caicos Outer Ridge is suffi
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De t ail e d com po sit ion a 1 com
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normally must be determined by cori
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) ) REFERENCES CITED Amos, A.F. and
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') 249 Bunce, E. T . ~J . D . Phill
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) \ ) Fuglister, F.C. (1960) Atlant
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) ) Kennett, J.P. and P. Huddlestun
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\ ) ì ./ Reynolds, R.C. and J. How
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) ) 257 Worthington,L.V. andW.R.Wri
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.) ~) APPENDIX I SEDIMENT CORES Cor
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0 Li E 0 +' +' QJ oSa: 0 u +' 1t~0
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E Q) 0 c -i Q) Q) Q) Q) -i Q) c u 0
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) / APPENDI X I I BOTTOM PHOTOGRAPH
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) ) TABLE A2.1. BOTTOM PHOTOGRAPHS
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TABLE A2.1. BOTTOM PHOTOGRAPHS (Con
- Page 375 and 376:
) TABLE A2.1. BOTTOM PHOTOGRAPHS (C
- Page 377 and 378:
) ) TABLE A2.1. BOTTOM PHOTOGRAPHS
- Page 379 and 380:
) ) CH 36 CH 57 CH 75 KN 25 KN 25 T
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) / ) KN 25 KN 25 KN 25 LL 8 LL 8 T
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TABLE A2.1. BOTTOM PHOTOGRAPHS (Con
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)~J . / ) APPENDIX III SUSPENDED PA
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) ) s. -i M a LO .. .. Q) -l.. ~ a
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) ~ .. a i. M N M Q) ~.. M i. .- LO
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\,-/ '-- TABLE A3.1. SUSPENDED PART
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~ vane which penetrated deeper into
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~ ) ~ ~ \ ji 0.5 1.0 1.5 2.0 2.5 WA
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, ) ) 289 Figure A4.2. Plots of wat
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\. ~ WATER CONTENT (%ORY WT) SHEAR
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) \ j 291 Figure A4.3. Plots of wat
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, ',, ~ .~ WATER CONTENT (% DRY WT.
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') ) 293 Figure A4.4. Plots of wate
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, ) )
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, ) )
- Page 414 and 415:
'. I ) )
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) ) ~ ~ ~ WATER CONTENT (%DRY WT) 6
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) ) Figure A4.7. Plots of water con
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) Fig u re A4. 7 300
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) ) ./ 301 Figure A4.8. Plots of wa
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) ) t\-- §" ~ o ~ ~ ~ ~ ~ V) a Q:
- Page 427 and 428:
) ) Fi g u re A4. 9 . 303 Plots of
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) ) tI WATER CONTENT (% DRY WT) 60
- Page 431 and 432:
~ ) -) 305 Figure A4.10. Plots of w
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o (/ ) ~ i. l. ~ 12 ) 4 8 16 20 306
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. I ) .)
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) )
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) ) V) ~l. ~ WATER CONTENT (%DRY WT
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) ) 311 Figure A4.13. Plots of wate
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\ ' ) ) ./
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Tucholke, B.E., C.D. Hollister, and
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~' \'~ -i -1. -ater "'ge - f1odsile
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\ ) ) UNCLASSIFI ED 1/31/74 SECURIT