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Table T3. Illite/smectite expandability values, illite abundance in illite/smectite (I/S) mixed-layer clay (<2 µm size fraction), and illite crystallinity index for cuttings samples (1–4 mm), Hole C0002F.

Cuttings
interval
(cm) 		Depth
(mbsf) 		S(001)
saddle
(cps) 		S(001)
peak
(cps) 		Saddle:peak
ratio 		Expandability
(%) 		I(002) + S(003)
(˚2θ) 		Illite in I/S
(%) 		Crystallinity
index (Δ˚2θ)
338-C0002F-
82 1190.5 213 319 0.67 64 16.05 34 0.54
86 1219.5 56 173 0.32 81 16.04 33 0.51
96 1250.5 132 294 0.45 74 15.97 27 0.52
100 1270.5 50 240 0.21 89 15.74 5 0.60
104 1290.5 125 264 0.47 72 15.89 20 0.53
108 1310.5 190 342 0.56 68 15.91 22 0.51
112 1330.5 212 371 0.57 68 15.88 19 0.58
116 1350.5 235 373 0.63 65 15.84 15 0.47
122 1370.5 303 511 0.59 67 15.91 22 0.49
126 1390.5 182 303 0.60 66 15.85 16 0.54
132 1410.5 232 398 0.58 67 15.86 17 0.56
136 1430.5 243 417 0.58 67 15.75 6 0.59
140 1450.5 200 370 0.54 69 15.89 20 0.46
144 1470.5 221 351 0.63 65 16.05 34 0.51
150 1490.5 159 332 0.48 72 16.12 39 0.51
155 1510.5 32 160 0.20 89 16.12 39 0.64
161 1530.5 189 314 0.60 66 15.95 25 0.46
167 1550.5 160 275 0.58 67 15.90 21 0.45
177 1590.5 208 356 0.58 67 15.98 28 0.55
184 1610.5 188 352 0.53 69 15.96 26 0.45
189 1630.5 252 466 0.54 69 15.89 20 0.49
195 1650.5 215 324 0.66 64 15.89 20 0.48
201 1670.5 200 360 0.56 68 15.94 24 0.51
209 1710.5 180 360 0.50 71 15.93 24 0.51
213 1730.5 50 112 0.45 74 15.96 26 0.48
217 1750.5 197 316 0.62 65 16.03 32 0.41
223 1770.5 237 365 0.65 64 15.99 29 0.51
229 1790.5 220 356 0.62 66 16.09 36 0.49
233 1810.5 90 254 0.35 79 15.94 24 0.57
238 1830.5 252 397 0.63 65 15.97 27 0.59
250 1850.5 256 393 0.65 64 16.02 31 0.52
255 1870.5 286 413 0.69 63 16.03 32 0.53
265 1910.5 272 352 0.77 59 15.85 16 0.53
269 1930.5 247 429 0.58 67 15.99 29 0.49
274 1950.5 281 364 0.77 59 15.91 22 0.55
282 1970.5 295 396 0.74 60 15.96 26 0.57
286 1990.5 280 413 0.68 63 15.99 29 0.51
Mean: 69   25 0.52
Standard deviation: 6.8   7.8 0.05

cps = counts per step.

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