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Creator:: Staudigel, Hubert, Koppers, Anthony A. P., Lavelle, J. William, Pitcher, Tony J., and Shank, Timothy M.
Abstract:: Reading through this issue of Oceanography, it will become apparent that researchers in different disciplines see their seamounts in quite different ways. The term seamount has been defined many times (e.g., Menard, 1964; Wessel, 2001; Schmidt and Schmincke, 2000; Pitcher et al., 2007; International Hydrographic Organization, 2008; Wessel et al.,...
Resource Type:: Article

Creator:: Staudigel, Hubert, Moyer, Craig L., Garcia, Michael O., Malahoff, Alex, Clague, David A., and Koppers, Anthony A. P.
Abstract:: Lō`ihi Seamount defines the volcanically active, leading edge in the Hawaiian hotspot chain. It is located on the submarine flank of Mauna Loa, 30 km south of the island of Hawai`i. Lō`ihi’s summit is at 975-m water depth (Pisces Peak), and the seamount has a pronounced southern rift that extends...
Resource Type:: Article

Creator:: Watts, Anthony B., Koppers, Anthony A. P., and Robinson, David P.
Abstract:: Seamounts are ubiquitous features of the seafloor that form part of the fabric of oceanic crust. When a seamount enters a subduction zone, it has a major affect on forearc morphology, the uplift history of the island arc, and the structure of the downgoing slab. It is not known, however,...
Resource Type:: Article

Creator:: Koppers, Anthony A. P., Staudigel, Hubert, and Duncan, Robert A.
Abstract:: We report new ⁴⁰Ar/³⁹Ar ages for the oldest Pacific oceanic floor at Ocean Drilling Program Site 801C in the Pigafetta basin and Site 1149D close to the Izu-Bonin subduction zone in the Nadezhda basin. These ages were determined by applying high-resolution incremental heating experiments (including 15–30 heating steps) to better...
Resource Type:: Article

Creator:: Koppers, Anthony A. P., Staudigel, Hubert, Hart, Stanley R., Young, Craig, and Konter, Jasper G.
Abstract:: Vailulu’u seamount is an active underwater volcano that marks the end of the Samoan hotspot trail (Hart et al., 2000). Vailulu’u has a simple conical morphology (Figure 1) with a largely enclosed volcanic crater at relatively shallow water depths, ranging from 590 m (highest point on the crater rim) to...
Resource Type:: Article

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