Leg 196 revisited sites previously cored during Ocean Drilling Program (ODP) Legs 131 and 190, and focused on in situ measurements of subseafloor physical properties, pressure, and temperature using two techniques: logging while drilling (LWD) and Advanced CORK (ACORK) long-term hydrogeologic observatories. This chapter explains the operations of the LWD tools and the analysis methods used to arrive at the interpretations reported in the site chapters in this volume. This chapter also describes in some detail the design features and components that are common to the ACORKs deployed in Holes 1173B and 808I. One important feature of the ACORK design is that coring is possible through an ACORK after it is installed; a feature that allowed us to core into basement at Hole 1173B. Hence, we also present the methods used to visually describe and perform physical properties, petrological, geochemical, and paleomagnetic analyses.
1Examples of how to reference the whole or part of this volume can be found under "Citations" in the preliminary pages of the volume.
2Shipboard Scientific Party addresses can be found under "Shipboard Scientific Party" in the preliminary pages of the volume.
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