Geochemistry and provenance of basaltic clasts within volcaniclastic debris flows, East Mariana Basin, Deep Sea Drilling Project Site 585.

Abstract

Pebble-sized basaltic and glassy clasts were extracted from seamount-derived volcaniclastic debris flows and analyzed for various trace elements, including the rare earths, to determine their genetic relationships and provenance. All the clasts were originally derived from relatively shallow submarine lava flows prior to sedimentary reworking, and have undergone minor low-grade alteration. They are classified into 3 petrographic groups. -from Author