Douglas H. Portis
Northern Arizona University, Flagstaff, AZ
Activity
2009
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A WINDOW INTO PALEOPROTEROZOIC GRANULITE FACIES METAMORPHISM AND PRE-YAVAPAI TECTONISM, SOUTHERN HUALAPAI MOUNTAINS, NW ARIZONA
11 General Discipline PostersTuesday, 12 May 20098:00 AM - 5:00 PM
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BASEMENT-INVOLVED SHEARING ALONG EASTERN AND WESTERN MARGINS OF THE BLACK HILLS, LOCAL OR REGIONAL PALEOPROTEROZOIC EVENT?
11 General Discipline PostersTuesday, 12 May 20098:00 AM - 5:00 PM
2007
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THICK-SKINNED PALEOPROTEROZOIC SHEAR-FOLD COUPLED DEFORMATION ALONG THE EASTERN MARGIN OF THE BLACK HILLS, SOUTH DAKOTA
T74 The Structure, Composition and Evolution of the Lithosphere of Western North America IMonday, 29 October 20078:00 AM - 12:00 PM