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2007 GSA Denver Annual Meeting (28–31 October 2007)

Session No. 106
Monday, 29 October 2007: 1:30 PM-3:30 PM

T115. The Blue Mountains Region of Oregon, Idaho and Washington: Recent Advances in the Mesozoic and Cenozoic History of an Enigmatic Accretionary Province II

GSA Sedimentary Geology Division; GSA Structural Geology and Tectonics Division

 

Todd LaMaskin, Joshua Schwartz and Victor Camp, Advocates
Paper #
Start Time
1
1:30 PM
SHRIMP U-PB CONSTRAINTS ON AGE AND PROVENANCE OF THE RIGGINS GROUP AND ASSOCIATED METAMORPHIC ROCKS WEST OF THE SALMON RIVER SUTURE, WEST-CENTRAL IDAHO: TECTONIC IMPLICATIONS
LUND, K., U.S. Geological Survey, MS 973, DFC, Denver, CO 80225, ALEINIKOFF, John N., U.S. Geological Survey, MS 963, DFC, Denver, CO 80225, YACOB, E.Y., EOG Resources, 420 Throckmorton, Fort Worth, TX 76102 and DEE, S.M., William Lettis and Associates, 433 Park Point Drive, Golden, CO 80401, klund@usgs.gov, klund@usgs.gov
2
1:50 PM
CONTRASTING STRUCTURAL HISTORIES OF THE SALMON RIVER BELT AND THE WALLOWA TERRANE: IMPLICATIONS FOR TERRANE ACCRETION IN WEST-CENTRAL IDAHO
GRAY, Keith and OLDOW, John S., Geological Sciences, University of Idaho, Moscow, ID 83844-3022, oldow@uidaho.edu, oldow@uidaho.edu
3
2:05 PM
SOUTHWARD EXTENT OF THE WESTERN IDAHO SHEAR ZONE, OWYHEE MOUNTAINS, IDAHO: CONSTRAINING ALONG-STRIKE VARIATIONS IN TRANSPRESSIONAL SHEAR ZONES
BENFORD, Bryn, The Department of Geoscience, University of Wisconsin - Madison, 1215 W. Dayton St, Madison, WI 53706, TIKOFF, Basil, Department of Geoscience, University of Wisconsin Madison, 1215 W. Dayton St, Madison, WI 53706, SCHMITZ, Mark, Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725 and NORTHRUP, C.J., bryn@geology.wisc.edu, bryn@geology.wisc.edu
4
2:20 PM
ROLE OF NE-STRIKING OBLIQUE DEXTRAL THRUST FAULTS IN THE DEVELOPMENT OF THE WALLOWA TERRANE IN THE NORTHERN CORDILLERA: IMPLICATIONS FOR TERRANE ACCRETION AND CLOCKWISE ROTATION
SCHMIDT, Keegan L., Division of Natural Science, Lewis - Clark State College, 500 8th Ave, Lewiston, ID 83501 and LEWIS, Reed S., Idaho Geological Survey, University of Idaho, P.O. Box 443014, Moscow, ID 83844-3014, klschmidt@lcsc.edu, klschmidt@lcsc.edu
5
2:35 PM
REGIONAL CONTEXT OF THE COLUMBIA RIVER BASALT ERUPTIONS
HUMPHREYS, Eugene D., Geological Sciences, University of Oregon, Eugene, OR 97403, genehumphreys@gmail.com, genehumphreys@gmail.com
6
2:55 PM
IS THE UPLIFT AND TECTONIC HISTORY OF THE BLUE MOUNTAINS, OREGON, CONSISTENT WITH A MODEL OF PLUME-INDUCED DELAMINATION?
CAMP, Victor, Department of Geological Sciences, San Diego State University, San Diego, CA 92182, vcamp@geology.sdsu.edu, vcamp@geology.sdsu.edu
7
3:10 PM
THE COLUMBIA RIVER BASALT GROUP VOLCANISM IN THE BLUE MOUNTAINS A MIDDLE MIOCENE REFERENCE DATUM FOR STRUCTURAL ANALYSIS
REIDEL, Stephen P., School of Earth and Environmental Sciences, Washington State University Tri-Cities, 2710 University Drive, Richland, WA 99354 and TOLAN, Terry L., GSI Water Solutions, 1020 N. Center Parkway, Kennewick, WA 99336, sreidel@tricity.wsu.edu, sreidel@tricity.wsu.edu
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