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doi:10.2204/iodp.proc.320321.217.2014

Introduction

Integrated Ocean Drilling Program Expeditions 320 and 321 investigated conditions of the equatorial Pacific during the Cenozoic by recovering cores from a transect (Fig. F1). A secondary objective of the drilling transect was to understand seawater circulation in the sediments and crust. Sediment permeability is an important factor in rates of seawater circulation. In this study, we used flow-through permeability tests to measure the vertical permeability of core samples from Sites U1331–U1333, U1337, and U1338. Grain size analyses were conducted to characterize the fraction of sand-, silt-, and clay-sized particles.