Session: Linking Fault Zone Deformation Processes, Kinematic Indicators, and Geochronology through the Brittle and Brittle-Ductile Regimes of the Earth’s Crust (GSA 2020 Connects Online)

Session No. 9

Monday, 26 October 2020: 1:30 PM-5:30 PM

T28. Linking Fault Zone Deformation Processes, Kinematic Indicators, and Geochronology through the Brittle and Brittle-Ductile Regimes of the Earth’s Crust

GSA Structural Geology and Tectonics Division; GSA Geochronology Division; GSA Hydrogeology Division; Canadian Tectonics Group; U.S. Geological Survey

James Kirkpatrick, Dawn Kellett, Margaret Odlum and Jonathan Saul Caine, Advocates

Paper #

Start Time

9-1

1:30 PM

DATING BRITTLE FAULT-ZONE DEFORMATION - ADVANTAGES, LIMITATIONS, AND BIASES (Invited Presentation)

NURIEL, Perach, Geochemistry division, Geological Survey of Israel, 32 Yeshayahu Leibowitz St., Jerusalem, 9692100, Israel

9-2

1:45 PM

FAULT GOUGE DATING IN THE SPANISH PYRENEES: SHORTENING RATES, THERMAL CONSTRAINTS ON CLAY GOUGE FORMATION, AND CATACLASTIC AGE INTERPRETATION

HAINES, Samuel, Earth Observatory of Singapore, 50 Nanyang Avenue, Singapore, 639798, Singapore and VAN DER PLUIJM, Ben A., Earth & Environmental Sciences, University of Michigan, 1100 N University Ave, Ann Arbor, MI 48109

9-3

2:00 PM

“BRITTLE STRUCTURAL FACIES” ANALYSIS TO UNRAVEL AND DATE MULTIPLE SLIP EVENTS OF LONG-LIVED FAULTS: THE LÆRDAL-GJENDE FAULT CASE STUDY (SW NORWAY)

TARTAGLIA, Giulia¹, VIOLA, Giulio², VAN DER LELIJ, Roelant³, SCHEIBER, Thomas⁴, CECCATO, Alberto¹ and SCHÖNENBERGER, Jasmin³, (1)Department of Biological, Geological and Environmental Sciences, University of Bologna, Piazza di Porta San Donato 1, Bologna, 40136, Italy, (2)Department of Biological, Geological and Environmental Sciences, University of Bologna, Piazza di Porta San Donato 1, Bologna, 40126, Italy, (3)Geological Survey of Norway, Trondheim, 7491, Norway, (4)Department of Environmental Sciences, Western Norway University of Applied Sciences, Sogndal, 6856, Norway

9-4

2:15 PM

COMBINING STRUCTURAL ANALYSIS AND DATING OF AUTHIGENIC-SYNKINEMATIC ILLITE: A FURTHER STEP TOWARD UNRAVELLING BRITTLE FAULTING IN TIME AND SPACE (Invited Presentation)

VIOLA, Giulio, Department of Biological, Geological and Environmental Sciences, University of Bologna, Piazza di Porta San Donato 1, Bologna, 40126, Italy

9-5

2:30 PM

SYNCING FAULT ROCK CLOCKS; DIRECT COMPARISON OF U-PB CARBONATE AND K-AR ILLITE FAULT DATING METHODS

MOTTRAM, Catherine, School of the Environment, Geography and Geosciences, University of Portsmouth, Burnaby Building, Burnaby Road, Portsmouth, PO49ER, United Kingdom and KELLETT, Dawn, Geological Survey of Canada - Altlantic Division, Natural Resources Canada, 1 Challenger Drive, Dartmouth, NS B2Y 4A2, Canada

9-6

2:45 PM

INTEGRATING FAULT-ROCK TYPES AND FABRICS WITH THERMO-KINEMATIC NUMERICAL MODELING TO UNDERSTAND THE MECHANICS OF A LOW-ANGLE NORMAL FAULT

LUTZ, Brandon and AXEN, Gary, Department of Earth & Environmental Science, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801

9-7

3:00 PM

NUMERICAL INVESTIGATIONS OF RAPID HEATING IN THRUST BELTS AND IMPLICATIONS FOR METAMORPHISM IN THE SCANDIAN OROGENIC WEDGE, NW SCOTLAND

THIGPEN, J. Ryan¹, ASHLEY, Kyle T.², MAKO, Calvin A.³, LAW, Richard D.⁴ and SPENCER, Brandon M.¹, (1)Department of Earth and Environmental Sciences, University of Kentucky, Lexington, KY 40506, (2)Department of Geosciences, Virginia Tech, 4044 Derring Hall (0420), Blacksburg, VA 24061, (3)Department of Geosciences, Virginia Tech, 926 West Campus Dr., Blacksburg, VA 24061, (4)Department of Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061

9-8

3:15 PM

NON-STEADY STATE SLIP RATES EMERGE AT RESTRAINING BENDS UNDER CONSTANT REMOTE LOADING

ELSTON, Hanna M., Geosciences, University of Massachusetts, 611 North Pleasant Street, 233 Morrill Science Center, Amherst, MA 01003 and COOKE, Michele L., Geosciences, University of Massachusetts Amherst, Amherst, MA 01003-9297

9-9

3:30 PM

A QUANTITATIVE APPROACH TO UNDERSTANDING REGIONAL STATES OF PALEOSTRESS, APPLIED TO LARAMIDE TECTONICS ON THE COLORARDO PLATEAU

REEHER, Lauren J., HUGHES, Amanda N. and DAVIS, George H., Department of Geosciences, University of Arizona, 1040 E. 4th Street, Tucson, AZ 85721

9-10

3:45 PM

THE SOUTH TAZIN LAKE SHEAR ZONE, A FUNDAMENTAL TECTONIC BREAK AND ARROWSMITH-AGE (CA. 2.37 GA) HIGH-STRAIN ZONE IN THE SOUTHWEST RAE PROVINCE OF LAURENTIA

DEANE, Jordan¹, BETHUNE, Kathryn¹, ASHTON, Kenneth² and CLOUTIER, Michael¹, (1)Department of Geology, University of Regina, 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada, (2)Saskatchewan Geological Survey, 1945 Hamilton Street, Regina, SK S4P 2C8, Canada

9-11

4:00 PM

INTEGRATED FAULT SLIP AND HEMATITE (U-TH)/HE DATA DOCUMENT STRAIN PARTITIONING AT MILLION-YEAR TIMESCALES WITHIN THE EASTERN DENALI FAULT ZONE, SOUTHWEST YUKON, CANADA (Invited Presentation)

MCDERMOTT, Robert G.¹, CAINE, Jonathan Saul² and AULT, Alexis K.¹, (1)Department of Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322, (2)U.S. Geological Survey, Geology, Geophysics, and Geochemistry Science Center, Denver, CO 80225

4:15 PM

Discussion

9-12

4:30 PM

THE EVOLUTION AND TIMING OF MULTI-PLANE DETACHMENT SYSTEMS: FROM DUCTILE TO BRITTLE

COLEMAN, Mark J., University of Ottawa, Ottawa, ON K1N 6N5, Canada, GRASEMANN, Bernhard, Geodynamics & Sedimentology, University of Vienna, Vienna, 1090, Austria, SCHNEIDER, David, Department of Earth Sciences, University of Ottawa, 140 Louis Pasteur, Ottawa, ON K1N 6N5, Canada and SOUKIS, Konstantinos, Dept. of Geology and Geoenvironment, University of Athens, Athens, Greece

9-13

4:40 PM

U-TH DATING OF SYNTECTONIC CALCITE VEINS REVEALS THE DYNAMIC NATURE OF FRACTURE CEMENTATION AND HEALING IN FAULTS

WILLIAMS, Randolph T., Department of Geoscience, University of Wisconsin-Madison, 1215 West Dayton Street, Madison, WI 53706, MOZLEY, Peter S., Department of Earth & Environmental Science, New Mexico Tech, 801 Leroy Place, Socorro, NM 87801, SHARP, Warren D., Berkeley Geochronology Center, 2455 Ridge Rd., Berkeley, CA 94709 and GOODWIN, Laurel B., Department of Geoscience, University of Wisconsin-Madison, Madison, WI 53706

9-14

4:50 PM

DATING REGIONAL EVENTS WITHIN A BRITTLE FAULT IN THE SOUTHERN ALASKAN CHUGACH ACCRETIONARY COMPLEX

NADIN, Elisabeth S.¹, YAKIMOVA, Veselina¹ and WEBB, Laura E.², (1)Department of Geosciences, University of Alaska Fairbanks, 1930 Yukon Dr, Fairbanks, AK 99775, (2)Geology, University of Vermont, 180 Colchester Ave., Burlington, VT 05405

9-15

5:00 PM

KINEMATICS AND TIMING OF THE SAN JUAN FAULT IN NORTHERN CASCADIA: IMPLICATIONS FOR EOCENE TERRANE ACCRETION OF SILETZIA

HARRICHHAUSEN, Nicolas¹, MORELL, Kristin¹, REGALLA, Christine², JOHNS, Marjorie J.³, MAKAHNOUK, W.R. Michael⁴ and LYNCH, Emerson M.², (1)Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106-9630, (2)School of Earth and Sustainability, Northern Arizona University, 625 S. Knoles, Flagstaff, AZ 86011, (3)Pacific PaleoQuest, Brentwood Bay, BC V8M 1A4, Canada, (4)Earth and Environmental Sciences, University of Waterloo, Waterloo, ON N2L 3G1, Canada

9-16

5:10 PM

DUCTILE TO BRITTLE DEFORMATION LOCALIZATION, EMBRITTLEMENT AND FLUID-ROCK INTERACTION DURING THRUSTING AND EXHUMATION OF A THIN-SKINNED NAPPE COMPLEX: NAUKLUFT, NAMIBIA

BOIANJU, Inga¹, FABER, Carly², PERRY, Emily² and ROWE, Christie D.³, (1)Department of Earth and Planetary Sciences, McGill University, 3450 University street, Montreal, QC H3A 0E8, Canada, (2)Department of Earth and Planetary Sciences, McGill University, Montreal, QC H3A0E8, Canada, (3)Dept of Earth and Planetary Sciences, McGill University, 3450 University street, Montreal, QC H3A 0E8, Canada

9-17

5:20 PM

OUTCROP-SCALE FAULTS IN THE EASTERN CENTRAL RANGE OF TAIWAN, A KINEMATIC LINK BETWEEN PLASTIC STRAIN AND CONTEMPORARY SEISMICITY

ADAMS, Susan A.¹, AMAN, Lindsey², DONATI, Lauren¹ and LEWIS, Jonathan C.³, (1)Geoscience, Indiana University of Pennsylvania, Indiana, PA 15701, (2)Indiana University of Pennsylvania, Indiana, PA 15701, (3)Geoscience Department, Indiana University of Pennsylvania, 302 East Walk, Walsh Hall, Rm 111, Indiana, PA 15705

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