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Creator:: Chadwick, John, Keller, Randall, Kamenov, George, Yogodzinski, Gene, and Lupton, John
Abstract:: The Cobb Seamount Chain in the northeast Pacific basin records the composition of the Cobb hot spot for the past 33 Myr, as the migrating Juan de Fuca Ridge approached and ultimately overran it ca. 0.5 Myr ago. In this first comprehensive geochemical study of the Cobb chain, major and...
Resource Type:: Article
Full Text:: controlled by a progressively thinning lithospheric lid Chadwick, J., R. Keller, G. Kamenov, G. Yogodzinski

Creator:: Campbell, John L., Fontaine, Joseph B., and Donato, Daniel C.
Abstract:: A key uncertainty concerning the effect of wildfire on carbon dynamics is the rate at which fire-killed biomass (e.g., dead trees) decays and emits carbon to the atmosphere. We used a ground-based approach to compute decomposition of forest biomass killed, but not combusted, in the Biscuit Fire of 2002, an...
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Full Text:: -killed trees following a large wildfire in Oregon, United States John L. Campbell1, Joseph B. Fontaine2

Creator:: Wear, Stephanie L. and Thurber, Rebecca Vega
Abstract:: Coral reefs are in decline worldwide, and land-derived sources of pollution, including sewage, are a major force driving that deterioration. This review presents evidence that sewage discharge occurs in waters surrounding at least 104 of 112 reef geographies. Studies often refer to sewage as a single stressor. However, we show...
Resource Type:: Article

Creator:: Rempel, Hannah, Buck, Stefanie, and Deitering, Anne-Marie
Abstract:: Students today perform research in a disintermediated environment, which often allows them to struggle directly with the process of selecting research tools and choosing scholarly sources. The authors conducted a qualitative study with twenty students, using structured observations to determine the processes students use to select databases and choose sources...
Resource Type:: Article

Creator:: Embley, Robert W., Merle, Susan G., Baker, Edward T., Rubin, Kenneth H., Lupton, John E., Resing, Joseph A., Dziak, Robert P., Lilley, Marvin D., Chadwick, William W. Jr., Shank, T., Greene, Ron, Walker, Sharon L., Haxel, Joseph, Olson, Eric, and Baumberger, Tamara
Abstract:: We present multiple lines of evidence for years to decade-long changes in the location and character of volcanic activity at West Mata seamount in the NE Lau basin over a 16 year period, and a hiatus in summit eruptions from early 2011 to at least September 2012. Boninite lava and...
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Creator:: Leybourne, Matthew I., Schwarz-Schampera, Ulrich, de Ronde, Cornel E. J., Baker, Edward T., Faure, Kevin, Walker, Sharon L., Butterfield, David A., Resing, Joe, Lupton, John, Hannington, Mark D., Massoth, Gary J., Embley, Robert W., Chadwick, William W., Jr., Clark, Malcolm, Timm, Christian, Graham, Ian J., and Wright, Ian C.
Abstract:: Authors listed on this Accepted Manuscript vary slightly from those listed on the Version of Record. Harold L. Gibson is an additional author on the published version.
Resource Type:: Article
Full Text:: , JOE 5 RESING 3, JOHN LUPTON 4, MARK D. HANNINGTON 5, GARY J. MASSOTH 1,6, ROBERT W. 6 EMBLEY 4

Creator:: Rubin, Kenneth H., Soule, S. Adam, Chadwick, William W., Jr., Fornari, Daniel J., Clague, David A., Embley, Robert W., Baker, Edward T., Perfit, Michael R., Caress, David W., and Dziak, Robert P.
Abstract:: Volcanic eruptions are important events in Earth’s cycle of magma generation and crustal construction. Over durations of hours to years, eruptions produce new deposits of lava and/or fragmentary ejecta, transfer heat and magmatic volatiles from Earth’s interior to the overlying air or seawater, and significantly modify the landscape and perturb...
Resource Type:: Article
Full Text:: Rubin, K.H., S.A. Soule, W.W. Chadwick Jr., D.J. Fornari, D.A. Clague, R.W. Embley, E.T. Baker, M.R

Creator:: Braunmiller, Jochen and Nábělek, John
Abstract:: The Blanco Transform Fault Zone (BTFZ) forms the ~350 km long Pacific–Juan de Fuca plate boundary between the Gorda and Juan de Fuca ridges. Nearby broadband seismic networks provide a unique framework for a detailed, long-term seismotectonic study of an entire oceanic transform fault (OTF) system. We use regional waveforms...
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Full Text:: John Nábělek1 Received 7 June 2007; revised 31 December 2007; accepted 8 April 2008; published 24

Creator:: Lupton, John E., Graham, David W., Delaney, John R., and Johnson, H. Paul
Abstract:: We have measured ³He/⁴He ratios and He and Ne concentrations on a suite of 24 basalt glasses from the neovolcanic zone of the Juan de Fuca Ridge (JdFR) from 44.6°N near the Blanco Transform up to 48.0°N on the Endeavour Segment. The helium isotope ratios exhibit a clear geographic variation,...
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Full Text:: IN JUAN DE PUCA RIDGE BASALTS JohnE. Lupton1, David W. Graham2, John R. Delaney3, and H. Paul

Creator:: Roloff, Gary J., Mealey, Stephen P., and Bailey, John D.
Abstract:: We conducted a comparative hazard assessment for 325,000 ha in a fire-prone area of southwest Oregon, USA. The landscape contains a variety of land ownerships, fire regimes, and management strategies. Our comparative hazard assessment evaluated the effects of two management strategies on crown fire potential and northern spotted owl (Strix...
Resource Type:: Article
Full Text:: Creek Lane, Springfield, OR 97478 12 John D. Bailey, Department of Forest Resources, Oregon State

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