Index Catalog // ScholarsArchive@OSU

Geochemical evidence in the northeast Lau Basin for subduction of the Cook-Austral volcanic chain in the Tonga Trench

Creator:: Price, Allison A., Jackson, Matthew G., Blichert-Toft, Janne, Blusztajn, Jerzy, Conatser, Christopher S., Konter, Jasper G., Koppers, Anthony A. P., and Kurz, Mark D.
Abstract:: Lau Basin basalts host an array of geochemical signatures that suggest incorporation of enriched mantle source material often associated with intraplate hotspots, but the origin of these signatures remain uncertain. Geochemical signatures associated with mantle material entrained from the nearby Samoan hotspot are present in northwest Lau Basin lavas, and...
Resource Type:: Article
Full Text:: , Christopher S. Conatser4, Jasper G. Konter5, Anthony A.P. Koppers4, and Mark D. Kurz6 1Department of Earth

Scalable models of data sharing in Earth sciences

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,...
Resource Type:: Article
Full Text:: sciences John Helly San Diego Supercomputer Center, University of California, San Diego, 9500 Gilman Drive

High-resolution ⁴⁰Ar/³⁹Ar dating of the oldest oceanic basement basalts in the western Pacific basin

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

Implications of a nonlinear ⁴⁰Ar/³⁹Ar age progression along the Louisville seamount trail for models of fixed and moving hot spots

Creator:: Koppers, Anthony A. P., Duncan, Robert A., and Steinberger, Bernhard
Abstract:: The Louisville seamount trail has been recognized as one of the key examples of hot spot volcanism, comparable to the classic volcanic Hawaiian-Emperor lineaments. The published total fusion ⁴⁰Ar/³⁹Ar data of Watts et al. [1988] showed an astonishing linear age progression, firmly establishing Louisville as a fixed hot spot in...
Resource Type:: Article
Full Text:: progression along the Louisville seamount trail for models of fixed and moving hot spots Anthony A. P

A fluorescein tracer release experiment in the hydrothermally active crater of Vailulu'u volcano, Samoa

Creator:: Hart, Stanley R., Staudigel, H., Koppers, Anthony A. P., and Girard, A. P.
Abstract:: On 3 April 2001, a 20 kg point source of fluorescein dye was released 30 m above the bottom of the active summit caldera of Vailulu’u submarine volcano, Samoa. Vailulu’u crater is 2000 m wide and at water depths of 600–1000 m, with the bottom 200 m completely enclosed; it...
Resource Type:: Article
Full Text:: , while Ken Brink and John Toole did the same for PO aspects. The NASA crew we shared ship time with

Short-lived and discontinuous intraplate volcanism in the South Pacific: Hot spots or extensional volcanism?

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...
Resource Type:: Article
Full Text:: volcanism in the South Pacific: Hot spots or extensional volcanism? Anthony A. P. Koppers and Hubert

KoppersAnthonyCEOASConstraintsPastPlate.pdf

Creator:: O'Connor, John M., Steinberger, Bernhard, Regelous, Marcel, Koppers, Anthony A. P., Wijbrans, Jan R., Haase, Karsten M., Stoffers, Peter, Jokat, Wilfried, and Garbe-Schönberg, Dieter
Abstract:: Estimates of the relative motion between the Hawaiian and Louisville hot spots have consequences for understanding the role and character of deep Pacific-mantle return flow. The relative motion between these primary hot spots can be inferred by comparing the age records for their seamount trails. We report ⁴⁰Ar/³⁹Ar ages for...
Full Text:: Constraints on past plate and mantle motion from new ages for the Hawaiian-Emperor Seamount Chain John M

Electronic data publication in geochemistry

Creator:: Staudigel, Hubert, Helly, John, Koppers, Anthony A. P., Shaw, Henry F., McDonough, William F., Hofmann, Albrecht W., Langmuir, Charles H., Lehnert, Kerstin, Baerbel, Sarbas, Derry, Louis A., and Zindler, Alan
Abstract:: Many disciplines of geochemistry have no data reporting standards, and their use of metadata is inadequately developed. This presents problems to the quality of the published science, and it limits the utility of computers in data analysis and the exploitation of Information Technology (IT). We discuss problems of data and...
Resource Type:: Article
Full Text:: , University of California, San Diego, La Jolla, California 92093, USA (hstaudigel@ucsd.edu) John Helly

New ⁴⁰Ar/³⁹Ar age progression for the Louisville hot spot trail and implications for inter–hot spot motion

Creator:: Koppers, Anthony A. P., Gowen, Molly D., Colwell, Lauren E., Gee, Jeffrey S., Lonsdale, Peter F., Mahoney, John J., and Duncan, Robert A.
Abstract:: In this study we present 42 new ⁴⁰Ar/³⁹Ar incremental heating age determinations updated age progression for the Louisville seamount trail. Louisville is the South Hawaiian‐Emperor seamount trail, both trails representing intraplate volcanism (~80 Ma to present) and being examples of primary hot spot lineaments. Our age‐progressive trend from 71 to...
Resource Type:: Article
Full Text:: spot trail and implications for inter–hot spot motion Anthony A. P. Koppers College of Earth, Ocean

KoppersAnthonyCEOASConstraintsPastPlate_SupportingInformation.zip

Creator:: O'Connor, John M., Steinberger, Bernhard, Regelous, Marcel, Koppers, Anthony A. P., Wijbrans, Jan R., Haase, Karsten M., Stoffers, Peter, Jokat, Wilfried, and Garbe-Schönberg, Dieter
Abstract:: Estimates of the relative motion between the Hawaiian and Louisville hot spots have consequences for understanding the role and character of deep Pacific-mantle return flow. The relative motion between these primary hot spots can be inferred by comparing the age records for their seamount trails. We report ⁴⁰Ar/³⁹Ar ages for...

ScholarsArchive@OSU

Geochemical evidence in the northeast Lau Basin for subduction of the Cook-Austral volcanic chain in the Tonga Trench

Scalable models of data sharing in Earth sciences

High-resolution ⁴⁰Ar/³⁹Ar dating of the oldest oceanic basement basalts in the western Pacific basin

Implications of a nonlinear ⁴⁰Ar/³⁹Ar age progression along the Louisville seamount trail for models of fixed and moving hot spots

A fluorescein tracer release experiment in the hydrothermally active crater of Vailulu'u volcano, Samoa

Short-lived and discontinuous intraplate volcanism in the South Pacific: Hot spots or extensional volcanism?

KoppersAnthonyCEOASConstraintsPastPlate.pdf

Electronic data publication in geochemistry

New ⁴⁰Ar/³⁹Ar age progression for the Louisville hot spot trail and implications for inter–hot spot motion

KoppersAnthonyCEOASConstraintsPastPlate_SupportingInformation.zip

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