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Table T1. Component percentages for visible tephra layers in Cores 1H through 6H, in Holes U1396A and U1396B.

Hole, core, section,
interval (cm)
Component (%)
Nonvesicular Vesicular Altered lava Crystals and glass
shards
Scoria Biogenic
340-
U1396A-1H-2, 34–36 8.3 5.4 7.7 78.6 0.0 0.0
U1396A-1H-2, 112–113 8.8 11.2 6.6 73.4 0.0 0.0
U1396A-1H-3, 75–76 2.3 23.6 7.5 65.2 0.0 1.4
U1396A-1H-3, 77–79 0.5 0.0 4.0 95.6 0.0 0.0
U1396A-1H-3, 82–83 4.5 7.0 7.4 79.6 0.0 1.6
U1396B-2H-1, 134–136 16.9 20.4 2.4 48.4 0.0 11.8
U1396B-2H-3, 111–112 9.6 9.9 3.1 77.4 0.0 0.0
U1396B-2H-4, 81–82 1.0 28.3 2.1 68.6 0.0 0.0
U1396B-2H-4, 91–92 13.5 3.5 3.5 63.4 0.0 16.1
U1396B-2H-5, 106–107 34.0 4.5 11.1 49.5 0.0 0.9
U1396B-2H-5, 109–110 21.8 50.5 0.9 26.9 0.0 0.0
U1396B-2H-7, 5–6 4.8 3.6 5.5 84.6 0.0 1.5
U1396B-2H-7, 13–14 2.4 32.7 2.6 62.4 0.0 0.0
U1396B-2H-7, 17–18 0.2 34.7 3.4 60.2 0.0 1.4
U1396B-2H-7, 57–59 9.4 23.3 2.8 63.6 0.0 0.9
U1396B-2H-7, 65–67 1.7 19.7 0.9 75.9 0.0 1.7
U1396A-3H-2, 39–40 0.2 47.1 5.6 46.5 0.0 0.6
U1396A-3H-2, 74–76 3.8 17.0 0.0 52.4 0.0 26.9
U1396A-3H-2, 84–86 0.0 9.2 7.4 83.0 0.5 0.0
U1396A-3H-2, 88–90 8.0 5.2 8.5 78.3 0.0 0.0
U1396A-3H-2, 107–109 3.1 18.9 0.2 77.8 0.0 0.0
U1396A-3H-2, 113–114 7.5 31.1 1.9 59.3 0.0 0.2
U1396A-3H-3, 82–84 2.2 40.6 3.7 43.2 0.0 10.3
U1396A-3H-3, 119–120 2.6 5.0 1.0 91.4 0.0 0.0
U1396A-3H-3, 122–123 8.7 15.2 0.7 75.4 0.0 0.0
U1396A-3H-4, 15–17 1.2 3.8 3.1 60.4 0.0 31.5
U1396A-3H-4, 45–47 1.9 10.1 5.8 62.6 0.0 19.6
U1396A-4H-2, 69–70 3.1 12.3 1.2 83.4 0.0 0.0
U1396A-4H-2, 90–92 0.2 17.9 0.0 81.9 0.0 0.0
U1396A-4H-2, 137–139 18.0 1.3 1.1 64.0 0.0 15.6
U1396A-4H-3, 6–7 0.0 63.5 0.0 24.1 0.0 12.4
U1396A-4H-3, 16–18 0.0 5.6 2.1 92.3 0.0 0.0
U1396A-4H-3, 55–57 1.7 9.7 12.7 71.8 0.0 4.1
U1396A-4H-5, 23–25 4.2 26.6 8.4 60.9 0.0 0.0
U1396A-4H-7, 68–70 0.8 8.4 0.8 66.9 0.0 22.9
U1396A-4H-7, 73–75 0.2 52.0 15.5 32.3 0.0 0.0
U1396A-5H-1, 19–21 0.4 26.6 1.0 56.5 0.0 15.5
U1396A-5H-1, 30–32 2.9 37.2 1.4 56.5 0.9 1.1
U1396A-5H-1, 35–37 1.0 39.7 3.3 51.9 0.0 4.1
U1396A-5H-1, 43–45 2.0 44.1 2.9 50.0 0.0 1.0
U1396A-5H-1, 46–47 2.4 32.6 2.9 61.7 0.0 0.5
U1396A-5H-1, 53–54 3.2 18.4 1.2 77.0 0.0 0.2
U1396A-5H-1, 59–61 2.9 25.3 3.4 67.1 0.0 1.2
U1396A-5H-1, 65–66 2.5 30.0 7.8 58.8 0.0 0.9
U1396A-5H-1, 68–69 9.6 24.7 11.1 54.6 0.0 0.0
U1396A-5H-2, 76–77 0.0 39.2 2.2 55.6 0.0 2.9
U1396A-5H-5, 32–33 4.7 14.4 3.5 75.7 0.0 1.7
U1396A-5H-6, 44–45 0.0 16.0 0.0 84.0 0.0 0.0
U1396A-6H-4, 18–19 6.2 6.5 5.7 39.5 35.5 6.7
U1396A-6H-4, 47–48 2.3 76.6 0.6 18.7 1.9 0.0
U1396A-6H-4, 61–62 19.6 44.0 0.9 35.5 0.0 0.0
U1396A-6H-4, 70–71 32.9 17.2 1.9 48.0 0.0 0.0
U1396A-6H-4, 77–78 19.6 55.9 0.0 24.3 0.0 0.2
U1396A-6H-4, 80–82 22.1 31.0 15.2 31.7 0.0 0.0
U1396A-6H-4, 82–83 25.5 12.0 1.5 41.4 19.0 1.2
U1396A-6H-4, 84–85 35.8 25.5 9.8 28.9 0.0 0.0
U1396A-6H-4, 87–88 14.5 14.0 4.9 37.8 28.7 0.0
U1396A-6H-4, 90–92 12.1 14.6 8.6 28.9 35.8 0.0
U1396A-6H-4, 93–94 47.9 15.7 8.1 27.3 0.5 0.5
U1396A-6H-4, 94–95 10.2 0.0 2.9 45.3 41.6 0.0
U1396A-6H-5, 50–51 19.6 25.4 5.4 48.7 0.0 0.9
U1396A-6H-5, 54–55 27.7 10.2 6.6 55.6 0.0 0.0
U1396A-6H-5, 58–59 31.3 19.4 2.1 46.7 0.5 0.0
U1396A-6H-5, 144–145 9.0 36.0 1.4 52.9 0.7 0.0
U1396A-6H-6, 3–4 20.9 29.7 3.2 45.5 0.0 0.7
U1396A-6H-6, 121–122 7.3 10.9 5.3 76.1 0.0 0.4
U1396A-6H-6, 146–147 17.0 29.1 5.8 46.6 0.0 1.4
U1396A-6H-7, 5–6 0.4 0.0 2.6 50.4 45.1 1.4
U1396A-6H-7, 35–36 1.1 30.6 0.7 64.7 0.0 2.9
U1396A-6H-7, 39–40 0.2 23.8 2.2 73.7 0.0 0.0

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