Initial Reports, Volume 201 Shipboard Scientific Party Chapter 7, Table T4. Iron concentrations of replicate interstitial water passed through different filters, Hole 1226B. Core, section, interval (cm) Iron (0.45-um filter) (uM) Iron (0.1-um filter) (uM) 201-1226B- 5H-2, 130-150 8.0 7.8 5H-2, 130-150 7.8 7.6 5H-2, 130-150 5.7 5.7 5H-5, 130-150 9.7 10.0 5H-2, 130-150 5.8 5.8 5H-2, 130-150 5.9 5.9 5H-2, 130-150 11.2 10.8