Table T2. Summary of Curie temperature determination of minicore samples from the Leg 183 sites.

Core, section,
interval (cm)
Depth (mbsf)
Temperature* (°C)
Temperature† (°C)
Rock type
Alteration
183-1136A-




15R-2, 44-46 128.64 — 569 Massive basalt High
15R-2, 77-79 128.97 — 562 Massive basalt High
15R-2, 132-134 129.52 — 572 Massive basalt Moderate
15R-3, 109-111 130.68 — 575 Massive basalt Slight
15R-3, 118-120 130.77 — 569 Massive basalt Slight
15R-4, 3-5 131.09 — 554 Massive basalt Slight
16R-1, 62-64 138.22 — 572 Massive basalt Slight
16R-1, 134-136 138.94 560 575 Massive basalt Slight
16R-2, 9-11 139.15 — 566 Massive basalt Slight
16R-2, 32-34 139.38 — 567 Massive basalt Slight
16R-2, 115-117 140.21 — 567 Massive basalt Moderate
16R-2, 140-142 140.46 550 — Massive basalt Moderate
16R-3, 66-68 141.22 — 580 Massive basalt Slight-moderate
17R-1, 20-22 144.10 — 539 Massive basalt Slight-moderate
17R-2, 12-14 145.50 — 561 Massive basalt Slight-moderate
17R-2, 63-65 146.01 — 534 Massive basalt Slight-moderate
18R-1, 61-63 147.91 580 — Massive basalt Slight-moderate
18R-1, 75-77 148.05 — 546 Massive basalt Slight-moderate
18R-2, 123-125 149.91 — 302 Massive basalt Slight-moderate
18R-4, 126-128 152.05 — 265 Massive basalt with numerous veins Slight-moderate
18R-5, 32-34 152.55 — 220 Massive basalt with numerous veins Slight-moderate
18R-5, 130-132 153.53 — 208 Massive basalt with numerous veins Slight-moderate
18R-6, 13-15 153.86 — 207 Massive basalt with numerous veins Slight-moderate
19R-1, 77-79 157.67 — 244 Massive basalt with numerous veins Slight
19R-1, 122-124 158.12 520 — Massive basalt with numerous veins Slight
19R-2, 45-47 158.89 — 186 Massive basalt with numerous veins Slight
183-1137A-




25R-3, 89-91 232.11 — 582 Basaltic breccia Slight-moderate
27R-3, 87-89 251.45 545 — Massive basalt Moderate
32R-1, 58-60 276.68 505 — Massive basalt Slight
43R-1, 27-29 352.47 — 500? Crystal-vitric tuff High
43R-2, 43-45 353.48 435 620 Crystal-vitric tuff High
45R-3, 17-19 364.44 520 575 Massive basalt Slight
183-1138A-




78R-1, 44-46 727.44 — 538 Pumice lithic breccia High
79R-4, 115-117 742.02 — 334 Massive basalt High
80R-2, 114-116 748.91 — 335 Massive basalt Slight
81R-1, 92-94 756.82 — 563 Massive basalt High
81R-5, 9-11 761.45 480 498 Massive basalt Moderate
81R-5, 61-63 761.97 — 562 Massive basalt Moderate
81R-5, 82-84 762.18 — 605 Massive basalt Moderate
82R-3, 128-130 769.85 — 493 Massive basalt Moderate
83R-2, 68-70 777.38 — 562 Massive basalt Moderate
83R-5, 73-75 781.66 — 575 Massive basalt Moderate-high
84R-1, 106-108 785.86 — 550 Massive basalt Moderate
84R-3, 91-93 788.41 — 538 Basaltic breccia High
85R-2, 84-86 796.67 — 501 Massive basalt Moderate
85R-2, 89-91 796.72 — 540 Massive basalt Slight
86R-1, 55-57 804.64 — 552 Massive basalt Moderate-high
86R-3, 25-27 807.35 — 321 Massive basalt Moderate
87R-2, 90-92 816.06 — 310 Massive basalt Slight-moderate
88R-1, 53-55 823.93 — 508 Basaltic breccia High
89R-1, 40-42 833.50 — 354 Basaltic breccia High
89R-2, 111-113 835.69 — 332 Massive basalt Moderate
89R-3, 40-42 836.26 480 535 Massive basalt Moderate-high
183-1139A-




64R-5, 0-2 610.14 510 — Massive basalt with carbonate-filled veins Slight-moderate
66R-3, 64-66 627.12 — 540 Massive basalt Moderate
68R-7, 146-148 651.69 — 529 Massive tracyandesite Moderate
71R-4, 8-10 674.28 — 547 Massive tracyandesite Moderate-high
72R-2, 11-13 681.84 — 605 Massive trachyte Moderate
73R-3, 37-39 692.87 560 — Basalt with clay-filled veins Moderate-high
183-1140A-




25R-6, 65-67 235.18 — 245 Pillowed basalt Slight
26R-2, 15-17 238.64 595 535 Pillowed basalt Fresh-slight
27R-1, 104-106 240.34 — 157 Pillowed basalt Slight
27R-2, 51-53 241.22 — 165 Massive basalt Slight
27R-3, 37-39 242.36 — 571 Massive basalt Very slight
27R-4, 4-6 243.46 — 208 Massive basalt Fresh-slight
27R-5, 41-43 245.22 — 270 Pillowed basalt Fresh-slight
28R-1, 58-60 247.48 — 521 Pillowed basalt Slight
32R-1, 78-80 275.98 — 321 Massive basalt Slight
33R-2, 61-63 286.63 — 359 Massive basalt Slight-moderate
34R-2, 38-40 295.98 — 187 Massive basalt Slight-moderate
34R-5, 10-12 299.51 — 289 Pillowed basalt Slight-moderate
35R-1, 105-107 304.55 — 560 Pillowed basalt Slight-moderate
35R-2, 24-26 305.21 — 310 Pillowed basalt Slight-moderate
36R-3, 73-75 316.14 — 154 Massive basalt Fresh
36R-4, 6-8 316.97 — 203 Massive basalt Fresh-slight
37R-1, 87-89 318.17 — 329 Massive basalt Slight
37R-4, 16-18 320.64 230 540 Pillow basalt Slight-moderate
183-1141A-




19R-2, 84-86 159.12 — 520 Massive basalt Moderate-high
21R-2, 6-8 167.77 — 582 Massive basalt Moderate
2R-3, 35-37 174.43 520 580 Massive basalt Moderate
23R-3, 34-36 179.18 540 — Massive basalt High
24R-2, 6-8 182.30 — 562 Massive basalt Moderate-high
24R-3, 85-87 184.54 525 — Massive basalt Moderate-high
183-1142A-




1W-1, 35-37 90.35 — 455 Massive basalt Slight
2R-1, 14-16 91.14 — 485 Massive basalt Slight
2R-1, 66-68 91.66 — 463 Massive basalt Slight
2R-1, 93-95 91.93 — 538 Massive basalt Slight
2R-1, 102-104 92.02 — 500 Massive basalt Slight
2R-1, 132-134 92.32 — 577 Massive basalt Slight
3R-1, 39-41 99.09 — 575 Basalt Moderate
5R-1, 144-146 114.54 580 — Massive basalt Complete
5R-2, 18-20 114.77 — 574 Massive basalt Complete
5R-2, 58-60 115.17 — 565 Basaltic breccia Complete
9R-1, 62-64 132.92 — 554 Pillowed basalt? High-complete
9R-2, 126-128 135.06 — 517 Massive basalt Moderate-very high
9R-3, 33-35 135.56 — 530 Pillowed basalt? Moderate-very high
9R-4, 16-18 136.89 — 528 Pillowed basalt? High
9R-4, 26-28 136.99 — 548 Pillowed basalt? High
10R-1, 38-40 137.48 495 — Pillowed basalt? Moderate-high
10R-1, 65-67 137.75 — 555 Pillowed basalt? Moderate-high
10R-1, 80-82 137.90 — 554 Pillowed basalt? Moderate-high
10R-1, 136-138 138.46 — 555 Pillowed basalt? Moderate-high
10R-1, 143-145 138.53 — 569 Pillowed basalt? Moderate-high
10R-2, 54-56 139.11 — 574 Massive basalt? Moderate-high
10R-3, 43-45 140.48 — 447 Massive basalt Moderate

Notes: The rock type and degrees of alteration are from Coffin, Frey, Wallace, et al. (2000). * = Kappabridge. † = microvibrating Sample Magnetometer (VSM).