Index Catalog // ScholarsArchive@OSU

Creator:: Helly, John, Staudigel, Hubert, and Koppers, Anthony A. P.
Abstract:: Many Earth science disciplines are currently experiencing the emergence of new ways of data publication and the establishment of an information technology infrastructure for data archiving and exchange. Building on efforts to standardize data and metadata publication in geochemistry [Staudigel et al., 2002], here we discuss options for data publication,...
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Full Text:: , Mail Code 0527, La Jolla, California 92093, USA (hellyj@ucsd.edu) Hubert Staudigel and Anthony Koppers

Creator:: Koppers, Anthony A. P., Staudigel, Hubert, and Minnett, Rupert
Abstract:: Seamount research, more often than not, is carried out by highly specialized science teams with narrowly focused science objectives. As a result, different seamount science disciplines often do not collaborate or are not even aware of each other. However, it is obvious that interdisciplinary collaboration is the most successful approach...
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Full Text:: | Seamount Catalog: Seamount Morphology, Maps, and Data Files By Anthony A.P. Koppers, Hubert Staudigel

Creator:: Koppers, Anthony A. P., Staudigel, Hubert, Pringle, Malcolm S., and Wijbrans, Jan R.
Abstract:: South Pacific intraplate volcanoes have been active since the Early Cretaceous. Their HIMU-EMI-EMII mantle sources can be traced back into the West Pacific Seamount Province (WPSP) using plate tectonic reconstructions, implying that these distinctive components are enduring features within the Earth's mantle for, at least, the last 120 Myr. These...
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Full Text:: volcanism in the South Pacific: Hot spots or extensional volcanism? Anthony A. P. Koppers and Hubert

Creator:: Koppers. Anthony A. P., Staudigel, Hubert, Morgan, Jason Phipps, and Dunca, Robert A.
Abstract:: Over the last three decades the first-order correlation in morphology and orientation of seamount trails has been called upon to support the concept of a ‘‘fixed’’ Pacific hot spot frame of reference and to explain the Hawaii-Emperor bend (HEB) by a dramatic change in Pacific plate motion. In this paper,...
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Full Text:: @coas.oregonstate.edu) Hubert Staudigel Institute of Geophysics and Planetary Physics, Scripps Institution of

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...
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Full Text:: oldest oceanic basement basalts in the western Pacific basin Anthony A. P. Koppers and Hubert Staudigel

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...
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Full Text:: State University, Corvallis, OR, USA. Hubert Staudigel is Research Geologist and Lecturer, Institute of

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.,...
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Full Text:: | Defining the Word “Seamount” By Hubert Staudigel, Anthony A.P. Koppers, J. William Lavelle, Tony J. Pitcher

Creator:: Koppers, Anthony A. P., Staudigel, Hubert, Christie, David M., Dieu, Julie J., and Pringle, Malcolm S.
Abstract:: The Sr, Nd, and Pb isotopic compositions of five Cretaceous guyots (Limalok, Lo-En, Wodejebato, MIT, and Takuyo-Daisan) within the West Pacific Seamount Province (WPSP) indicate that they originated from geochemically enriched mantle sources. They are characterized by large isotopic variations in Pb (²⁰⁶Pb/²⁰⁴Pb = 18.58-19.80, ²⁰⁷Pb/²⁰⁴Pb = 15.55-15.68, and ²⁰⁸Pb/²⁰⁴Pb...
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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...
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Full Text:: substantial fluxes of Fe (review by Malahoff et al., 2006). Lṑ ihi’s Hubert Staudigel (hstaudigel@ucsd.edu

Creator:: Tauxe, Lisa, Constable, Catherine, Johnson, Catherine L., Koppers, Anthony A. P., Miller, Winter R., and Staudigel, Hubert
Abstract:: The issue of permanent nondipole contributions to the time-averaged field lies at the very heart of paleomagnetism and the study of the ancient geomagnetic field. In this paper we focus on paleomagnetic directional results from igneous rocks of the southwestern U.S.A. in the age range 0–5 Ma and investigate both...
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Full Text:: . Koppers, Winter R. Miller, and Hubert Staudigel Scripps Institution of Oceanography, University of

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