Major oxide, trace element and rare earth element composition at DSDP Leg 92 holes@en

The chemical composition of the basement in DSDP Holes 597C, 599B and 601B is examined in this chapter. These holes were drilled during Leg 92 west of the East Pacific Rise (EPR) crest along 19°S. Hole 597C reached a depth of 91 m into the basement with a recovery of about 55%, so it is the most successful hole drilled in fast-spreading crust. On the other hand, only drilling breccia and some basaltic cobbles were recovered from Holes 599B and 601B. […]