Frontispiece. Shaded relief map showing the location of Ocean Drilling Program (ODP) Site 1223, the islands of Oahu and Molokai (outlined by a thin black line), the debris fields for the giant Nuuanu and Wailau landslides from Koolau and East Molokai volcanoes (thin dashed lines show slide boundaries) (Moore and Clague, 2002), the rift zone and caldera locations for Koolau volcano (heavy dashed lines) (Wentworth and Winchell, 1947), the northern Hawaiian Moat, JAMSTEC piston core locations (P1 to P4) (Naka et al., 2000), and the seismic line that transects Site 1223 (fig. 3 from Rees et al., 1993). The insert map shows the study area relative to the Hawaiian Islands, ODP Sites 842 and 843, and the northern Hawaiian Arch. Site 1223 was drilled during Leg 200 to determine the depositional history, timing, thickness, and hazards associated with the Nuuanu landslide, the only previously known Koolau slide. (Figure adapted from Garcia et al., in press.)

References

Garcia, M.O., Sherman, S.B., Moore, G., Goll, R., Popova-Goll, I., Natland, J.H., and Acton, G., in press. Frequent landslides from Koolau Volcano: results from ODP Site 1223. J. Volcanol. Geotherm. Res.

Moore, J.G., and Clague, D.A., 2002. Mapping the Nuuanu and Wailau landslides in Hawaii. In Takahashi, E., Lipman, P.W., Garcia, M.O., Naka, J., and Aramaki, S. (Eds.), Hawaiian Volcanoes: Deep Underwater Perspectives. Geophys. Monogr., 128:233–244.

Naka, J., Takahashi, E., Clague, D., Garcia, M., Hanyu, T., et al., 2000. Tectono-magmatic processes investigated at deep-water flanks of Hawaiian volcanoes. Eos, Trans. Am. Geophys. Union., 81:227–230.

Rees, B.A., Detrick, R.S., and Coakley, B.J., 1993. Seismic stratigraphy of the Hawaiian flexural moat. Geol. Soc. Am. Bull., 105:189–205.

Wentworth, C.K., and Winchell, H., 1947. Koolau basalt series, Oahu, Hawaii. Geol. Soc. Am. Bull., 58:49–77.