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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:: the hydrothermally active crater of Vailulu’u volcano, Samoa S. R. Hart,1 H. Staudigel,2 R. Workman

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:: : 1525-2027 Copyright 2003 by the American Geophysical Union 1 of 20 Koppers, A. A. P., H. Staudigel

Vailulu'u Seamount

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
Full Text:: rugosa) to thrive on Nafanua’s summit (Figure 3). REFERENCES Hart, S.R., H. Staudigel, A.A.P. Koppers

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:: 23 January 2002; Revised 24 June 2002; Accepted 25 June 2002; Published 29 March 2003. Staudigel, H

Age systematics of two young en echelon Samoan volcanic trails

Creator:: Koppers, Anthony A. P., Russell, Jamie A., Roberts, Jed, Jackson, Matthew G., Konter, Jasper G., Wright, Dawn J., Staudigel, Hubert, and Hart, Stanley R.
Abstract:: The volcanic origin of the Samoan archipelago can be explained by one of three models, specifically, by a hot spot forming over a mantle plume, by lithospheric extension resulting from complex subduction tectonics in the region, or by a combination of these two processes, either acting sequentially or synchronously. In...
Resource Type:: Article
Full Text:: , A. A. P., J. A. Russell, J. Roberts, M. G. Jackson, J. G. Konter, D. J. Wright, H. Staudigel, and S

Vailulu’u Seamount, Samoa: Life and death on an active submarine volcano

Creator:: Staudigel, Hubert, Hart, Stanley R., Pile, Adele, Bailey, Bradley E., Baker, Edward T., Brooke, Sandra, Connelly, Douglas P., Haucke, Lisa, German, Christopher R., Hudson, Ian, Daniel Jones, Koppers, Anthony A. P., Konter, Jasper, Lee, Ray, Pietsch, Theodore W., Tebo, Bradley M., Templeton, Alexis S., Zierenberg, Robert, and Young, Craig M.
Abstract:: Submersible exploration of the Samoan hotspot revealed a new, 300-m-tall, volcanic cone, named Nafanua, in the summit crater of Vailulu’u seamount. Nafanua grew from the 1,000-m-deep crater floor in <4 years and could reach the sea surface within decades. Vents fill Vailulu’u crater with a thick suspension of particulates and...
Resource Type:: Article
Full Text:: 44, 745–770. 10. Rogers, A. D. (1994) Adv. Mar. Biol. 30, 305–350. 11. Hart, S. R., Staudigel, H

New Insights into Mantle Dynamics from Helium Isotopes and Argon Geochronology

Creator:: Konrad, Kevin
Abstract:: Earth’s mantle extends to nearly 3000 km depth, comprises >80 % of Earth’s total volume, and has the largest influence on the primordial and radiogenic heat budget. Despite its importance, the structure and composition of the mantle is still debated. There are three primary models for Earth’s mantle structure that...
Resource Type:: Dissertation
Full Text:: ., 2016; Graham et al., 1988; Hofmann and White, 1982; Schilling, 1973; Staudigel et al., 1991; Stein and

Microbiology of basalts targeted for deep geological carbon sequestration : field observations and laboratory experiments

Creator:: Lavalleur, Heather J.
Abstract:: With rising concentrations of CO₂ in the Earth's atmosphere causing concern about climate change, many solutions are being presented to decrease emissions. One of the proposed solutions is to sequester excess CO₂ in geological formations such as basalt. The deep subsurface is known to harbor much of the microbial biomass...
Resource Type:: Masters Thesis

Correlation of ignimbrites using characteristic remanent magnetization and anisotropy of magnetic susceptibility, Central Andes, Bolivia

Creator:: Ort, Michael H., de Silva, Shanaka L., Jimenez C., Nestor, Jicha, Brian R., and Singer, Bradley S.
Abstract:: Large ignimbrite flare-ups provide records of profound crustal modification during batholith formation at depth. The locations of source calderas and volumes and ages of the eruptions must be determined to develop models for the tectonomagmatic processes that occur during these events. Although high-precision isotopic ages of the ignimbrites are critical,...
Resource Type:: Article
Full Text:: remanent magnetization and anisotropy of magnetic susceptibility, Central Andes, Bolivia Michael H. Ort

Multiple mantle plume components involved in the petrogenesis of subduction-related lavas from the northern termination of the Tonga Arc and northern Lau Basin: Evidence from the geochemistry of arc and backarc submarine volcanics

Creator:: Falloon, Trevor J., Danyushevsky, Leonid V., Crawford, Tony J., Maas, Roland, Woodhead, Jon D., Eggins, Stephen M., Bloomer, Sherman H., Wright, Dawn J., Zlobin, Sergei K., and Stacey, Andrew R.
Abstract:: New seafloor mapping and sampling demonstrates that the eruption of the high-Ca boninites is clearly associated with rifting of the northern Tonga ridge and the northern Lau Basin at the northern termination of the Tonga Trench. There is very strong evidence for OIB plume related mantle sources involved in the...
Resource Type:: Article
Full Text:: . Lugmair, H. Staudigel, J. Hawkins, and P. Lonsdale (1987), Isotopic evidence for a hotspot origin of the

ScholarsArchive@OSU

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

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

Vailulu'u Seamount

Electronic data publication in geochemistry

Age systematics of two young en echelon Samoan volcanic trails

Vailulu’u Seamount, Samoa: Life and death on an active submarine volcano

New Insights into Mantle Dynamics from Helium Isotopes and Argon Geochronology

Microbiology of basalts targeted for deep geological carbon sequestration : field observations and laboratory experiments

Correlation of ignimbrites using characteristic remanent magnetization and anisotropy of magnetic susceptibility, Central Andes, Bolivia

Multiple mantle plume components involved in the petrogenesis of subduction-related lavas from the northern termination of the Tonga Arc and northern Lau Basin: Evidence from the geochemistry of arc and backarc submarine volcanics

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