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Table of Contents - Special Paper 371

Geology of a transpressional orogen developed during ridge-trench interaction along the North Pacific margin

Edited by Virginia B. Sisson, Sarah M. Roeske, and Terry L. Pavlis

Introduction: An overview of ridge-trench interactions in modern and ancient settings Virginia B. Sisson, Terry L. Pavlis, Sarah M. Roeske, and Derek J. Thorkelson		1

1.	Geologic signature of early Tertiary ridge subduction in Alaska Dwight Bradley, Tim Kusky, Peter Haeussler, Rich Goldfarb, Marti Miller, Julie Dumoulin, Steven W. Nelson, and Sue Karl	19
2.	Large-scale, latest Cretaceous uplift along the northeast Pacific Rim: Evidence from sediment volume, sandstone petrography, and Nd isotope signatures of the Kodiak Formation, Kodiak Islands, Alaska James C. Sample and Mary R. Reid	51
3.	Cooling and exhumation history of the Kodiak accretionary prism, southwest Alaska W.S. Clendenen, Donald Fisher, and Timothy Byrne	71
4.	Sedimentary record of transpressional tectonics and ridge subduction in the Tertiary Matanuska Valley-Talkeetna Mountains forearc basin, southern Alaska Jeffrey M. Trop, Kenneth D. Ridgway, and Terry L. Spell	89
5.	Brittle deformation along the Gulf of Alaska margin in response to Paleocene-Eocene triple junction migration Peter J. Haeussler, Dwight C. Bradley, and Richard J. Goldfarb	119
6.	Dextral-slip reactivation of an arc-forearc boundary during Late Cretaceous-Early Eocene oblique convergence in the northern Cordillera Sarah M. Roeske, Lawrence W. Snee, and Terry L. Pavlis	141
7.	Constrictional flow within the Eocene forearc of southern Alaska: An effect of dextral shear during ridge subduction Terry L. Pavlis, Kevin Marty, and Virginia B. Sisson	171
8.	Development of a subhorizontal decoupling horizon in a transpressional system, Chugach metamorphic complex, Alaska: Evidence for rheological stratification of the crust Terry L. Pavlis and Virginia B. Sisson	191
9.	Pressure and temperature conditions of brittle-ductile vein emplacement in the greenschist facies, Chugach metamorphic complex, Alaska: Evidence from fluid inclusions Jill Weinberger and Virginia B. Sisson	217
10.	Oxygen isotope constraints on fluid infiltration associated with high-temperature-low-pressure metamorphism (Chugach metamorphic complex) within the Eocene southern Alaska forearc John R. Bowman, Virginia B. Sisson, John W. Valley, and Terry L. Pavlis	237
11.	Metamorphism within the Chugach accretionary complex on southern Baranof Island, southeastern Alaska Cathy L. Zumsteg, Glen R. Himmelberg, Susan M. Karl, and Peter J. Haeussler	253
12.	Controls on intrusion of near-trench magmas of the Sanak-Baranof belt, Alaska, during Paleogene ridge subduction, and consequences for forearc evolution Timothy M. Kusky, Dwight Bradley, D. Thomas Donley, David Rowley, and Peter J. Haeussler	269
13.	Geochemical and geochronologic constraints for genesis of a tonalite-trondhjemite suite and associated mafic intrusive rocks in the eastern Chugach Mountains, Alaska: A record of ridge-transform subduction Virginia B. Sisson, Anne R. Poole, Nancy R. Harris, Holly Cooper Burner, Terry L. Pavlis, Peter Copeland, Raymond A. Donelick, and William C. McLelland	293
14.	Magmatic and tectonic history of the Leech River Complex, Vancouver Island, British Columbia: Evidence for ridge-trench intersection and accretion of the Crescent Terrane Wesley G. Groome, Derek J. Thorkelson, Richard M. Friedman, James K. Mortensen, Nick W.D. Massey, Daniel D. Marshall, and Paul W. Layer	327
Index		355