The Reactivation of the Lost Lakes Fault in Yosemite National Park (USA): When Did it Happen and What Does it Mean?
Richard Becker, UW-Madison Basil Tikoff, UW-Madison David Greene, Denison University The Lost Lakes Fault is an 8 km long NW-striking structure that parallels the Sierra Crest in Yosemite National Park. The ...

EllipseFit 3: A New Computer Program for Integrated Geological Finite Strain Analysis
Frederick Vollmer, SUNY New Paltz EllipseFit 3 is an entirely new version of EllipseFit, an integrated program for geological finite strain analysis. It is designed for determining two and three-dimensional strain ...

Creating, Disseminating, and Testing Interactive 3D Models for Teaching Structural Geology
Paul Karabinos, Williams College Many fundamental geologic concepts are rooted in 3D spatial relationships. Well-crafted 2D perspective diagrams illuminate such relationships for some students, but interactive 3D ...

Finding Active Faults Using Earthquake Focal Mechanisms, Geomorphic Analysis and Field Work (SLAM)
Vincent Cronin, Baylor University Jordan Dickinson, Baylor University The seismo-lineament analysis method (SLAM) uses an earthquake focal mechanism and a DEM or topographic map, along with geomorphic analysis, to ...

Strain Localization (and De-localization?) in Deep Continental Crust: Examples from an Exhumed Section and Remote Observations from Still Deep Crust in North America
Kevin H. Mahan, University of Colorado-Boulder Sean Regan, University of Massachusetts-Amherst Omero P. Orlandini, University of Colorado-Boulder Michael L. Williams, University of Massachusetts-Amherst Vera ...

Prograde and Retrograde Zircon Growth in HP Migmatitic Schist of the Monashee Complex (Canadian Cordillera): Assesment of the Ti-In Zircon Thermometer
Félix Gervais, Polytechnique Montréal Jim Crowley, Boise State University U-Pb ages and trace elements acquired simultaneously on zircon grains from a migmatitic pelitic-schist, collected in the northern part of ...

Quantitative Structural Analysis: Where does it start?
David Pollard, Stanford University Stephen Martel, University of Hawaii We address the question: what approach should one adopt to analyze problems of structural geology from a quantitative point of view? We focus ...

Damaged Goods in the Marmion Tonalites, Superior Province, Ontario: Deformation Fabrics in a Gold-Bearing Damage Zone.
Nils Backeberg, McGill University Christie Rowe, McGill University The Archean Hammond Reef gold deposit in NW Ontario, Canada, is hosted in the Mesoarchean Marmion tonalite gneisses of the south-central Wabigoon ...

Advances in Quantifying Crustal Stress Magnitudes
Steven Kidder, City College New York Recrystallized grain size has been used to quantify the magnitude of the stresses involved in the ductile deformation of rocks for nearly 40 years. While the practice has ...

Deformation-Enhanced Element Mobility in Feldspar: A Strain Speedometer?
Naomi Barshi, Department of Earth and Planetary Sciences, McGill University Christie Rowe, Department of Earth and Planetary Sciences, McGill University Vincent van Hinsberg, Department of Earth and Planetary ...