Table T7. Clay mineralogy, Leg 189.
Age
Site
Clay mineralogy (%)
C, I, ml
Smectite
Kaolinite
late Pliocene–Pleistocene 1168 7–20 35–68 19–50
  1170 10–31 34–71 19–47
  1171 13–56 0–76 11–44
  1172 13–36 34–71 14–30
late Miocene–early Pliocene 1168 4–18 53–80 14–33
  1170 3–21 45–89 3–21
  1171 6–16 63–85 7–21
  1172 5–36 46–85 10–27
middle Miocene–late Miocene 1168 1–4 74–92 7–22
  1170 8–30 39–92 0–32
  1171 0–41 59–100 0–12
  1172 2–12 82–90 6–13
early Miocene–middle Miocene 1168 1–12 45–91 8–46
  1170 0–9 84–100 0–7
  1171 0–12 85–100 0–8
  1172 3–6 84–92 4–10
early Oligocene–early Miocene 1168 1–4 58–88 10–40
  1170 3–19 75–97 3–19
  1171 5–14 88–92 0–5
  1172 3–7 83–90 6–9
middle Eocene–early Oligocene 1168 2–31 0–81 16–88
  1170 1–100 0–98 0–17
  1171 3–71 25–96 0–7
  1172 2–8 84–97 0–11
early Eocene–middle Eocene 1168 — — —
  1170 0–8 90–100 0–3
  1171 0–11 88–100 0–2
  1172 2–5 93–98 0–3
late Paleocene–early Eocene 1168 — — —
  1170 — — —
  1171 8–45 20–92 0–19
  1172 2–10 72–98 0–18
Cretaceous–late Paleocene 1168 — — —
  1170 — — —
  1171 — — —
  1172 3–8 92–96 0–1

Notes: C = chlorite, I = illite, ml = random mixed-layered clays. — = not available.