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Creator:: Sinton, Christopher W. and Duncan, Robert A.
Abstract:: ⁴⁰Ar-³⁹Ar incremental heating experiments were performed on volcanic rocks recovered by drilling during Ocean Drilling Program Leg 152, southeast Greenland Margin (63°N), and Deep Sea Drilling Project Leg 81, southwest Rockall Plateau (56°N). Both of these legs drilled into thick sections of submerged lava flows, known as seaward-dipping reflector sequences,...
Resource Type:: Article
Full Text:: 811 Christopher W. Sinton2,3 and Robert A. Duncan2 ABSTRACT 40Ar-39Ar incremental heating

Creator:: Sinton, Christopher W., Christie, David M., and Duncan, Robert A.
Abstract:: Lavas from seamounts of the central Galápagos Platform and the Carnegie Ridge increase in age with distance from the western edge of the platform, consistent with a hotspot model for the generation of these features. The areal distribution of seamount ages suggests that the pattern of dispersed volcanism seen on...
Resource Type:: Article
Full Text:: seamounts Christopher W. Sinton, David M. Christie, and Robert A. Duncan College of Oceanic and

Creator:: Sinton, Christopher W., Duncan, Robert A., and Denyer, Percy
Abstract:: The pre-Tertiary oceanic crust exposed on the west coast of Costa Pica has been broadly referred to as the Nicoya Complex. This study was designed to determine the age of the Nicoya Complex in the Nicoya Peninsula, Playa Jaco, and the Quepos Peninsula using Ar-40-Ar-39 radiometric dating and to assess...
Resource Type:: Article
Full Text:: W. Sinton 1 and Robert A. Duncan College of Oceanic and Atmospheric Sciences, Oregon State

Creator:: Sinton, C. W., Hitchen, K., and Duncan, Robert A.
Abstract:: At the submerged margins of the North Atlantic, andesitic to dacitic and basaltic volcanic rocks occur together. The silicic rocks were derived by processes requiring the presence of continental crust (crustal anatexis and/or contamination of mafic magmas) while the majority of the basaltic lavas had little or no contact with...
Resource Type:: Article
Full Text:: . W. SINTON*†, K. HITCHEN‡ & R. A. DUNCAN* * College of Oceanic and Atmospheric Sciences, Oregon

Creator:: Swanston, Christopher W.
Abstract:: Red alder (Alnus rubra Bong.) is recognized as an important source of nitrogen to ecosystems that it inhabits. I examined N dynamics within alder trees, alder leaf litter, and the soil beneath alder leaf litter. ¹⁵Nitrogen, a stable isotope of N, was used as a tracer to follow the movement...
Resource Type:: Masters Thesis

Creator:: Swanston, Christopher W. and Myrold, David Douglas
Abstract:: Nitrogen incorporation from red alder (Alnus rubra Bong.) into an Oregon upland mesic forest soil was studied by tracing the fate of 15N added as 15N-labeled alder leaf litter. The recovery of 15N in vegetation, litter, light- and heavy-fractions of the soil, the chloroform-labile (microbial biomass) pool, and the whole...
Resource Type:: Article
Full Text:: plants and soil of a recent clearcut in Oregon1 Christopher W. Swanston and David D. Myrold Abstract

Creator:: Jarmer, Christopher B., Mann, John W., and Atkinson, William A.
Resource Type:: Part of Book
Full Text:: Christopher B. Jarmer John W. Mann William A. Atkinson Introduction 203 A Review of Harvesting Systems 204

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