Rocky Mountain (53rd) and South-Central (35th) Sections, GSA, Joint Annual Meeting (April 29–May 2, 2001)

Session No. 17
Wednesday, 2 May 2001: 8:00 AM-12:00 PM

S5. Continental Lithosphere of the Rocky Mountain Region-from Proterozoic Acccretion to Present Structure

 

Karl E. Karlstrom and M. L. Williams, Conveners
Paper #
Start Time
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8:00 AM
GEOLOGIC INTERPRETATION OF CRUSTAL REFLECTION PROFILE ACROSS THE CHEYENNE BELT, PROTEROZOIC SUTURE, SE WYOMING AND NORTHERN COLORADO
MOROZOVA, Elena A.1, WAN, Xin1, CHAMBERLAIN, Kevin2, SMITHSON, Scott B.2, JOHNSON, Roy3, KARLSTROM, Karl E.4 and TYSON, Amanda R.4, (1)Geology & Geophysics department, University of Wyoming, Laramie, WY 82071-3006, (2)Geology & Geophysics department, Univ of Wyoming, Laramie, WY 82071-3006, (3)Department of Geosciences, Univ of Arizona, 1040 E 4th street, Tucson, AZ 85721, (4)Earth & Planetary Sciences, Univ of New Mexico, Northrop Hall, Albuquerque, NM 87131, lena@uwyo.edu, lena@uwyo.edu
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8:15 AM
GEOPHYSICAL EVIDENCE FOR MAGMATIC MODIFICATION OF THE CRUST IN THE ROCKY MOUNTAIN REGION
KELLER, G. Randy, SNELSON, Catherine, MILLER, Kate C. and QUEZADA, Oscar, Department of Geological Sciences, Univ of Texas at El Paso, El Paso, TX 79968, keller@geo.utep.edu, keller@geo.utep.edu
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8:30 AM
LITHOSPHERIC SCALE STRUCTURAL VARIATIONS ACROSS THE CHEYENNE BELT
DUEKER, Kenneth, Department of Geology and Geophysics, Univ of Wyoming, Laramie, WY 82071, dueker@uwyo.edu, dueker@uwyo.edu
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8:45 AM
VELOCITY STRUCTURE ALONG THE CD-ROM '99 SEISMIC REFRACTION/WIDE-ANGLE REFLECTION EXPERIMENT
SNELSON, Catherine M.1, RUMPEL, Hanna-Maria2, KELLER, G. Randy1, PRODEHL, Claus2, MILLER, Kate C.1 and HARDER, Steven H.1, (1)Geological Sciences, Univ of Texas at El Paso, 500 W University Ave, El Paso, TX 79968-0555, (2)Geophysikalisches Institut, Univ of Karlsruhe, Hertzstr.16, Karlsruhe, 76187, Germany, snelson@geo.utep.edu, snelson@geo.utep.edu
 
9:00 AM
Poster Presentations
 
9:15 AM
Poster Summaries: Magnani, Rumpel, Miller
 
9:30 AM
Poster Summaries: Zurek, Crosswhite, Yuan
 
9:45 AM
Break
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10:00 AM
CONSTRAINTS ON THE NATURE OF THE LOWER CRUST ACROSS THE CHEYENNE BELT: PETROLOGIC EVIDENCE FROM LOWER CRUSTAL XENOLITHS
STEVENS, Liane M.1, WILLIAMS, Michael L.2, BOWRING, Samuel A.3, MATZEL, Jennifer P.3 and FARMER, G. Lang4, (1)Department of Geosciences, University of Montana, Missoula, MT 59812, (2)Department of Geosciences, Univ of Massachusetts Amherst, 233 Morrill Science Center, Amherst, MA 01003, (3)Department of Earth, Atmospheric, and Planetary Sciences, MIT, (4)Department of Geological Sciences, Univ Colorado - Boulder, liane.stevens@umontana.edu, liane.stevens@umontana.edu
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10:15 AM
MINERAL HOMOGENEITY IN PERIDOTITE XENOLITHS FROM MINETTE AT BUELL PARK, AZ: KINETICS, THERMOMETRY, AND THE COLORADO PLATEAU MANTLE
SMITH, Douglas, Univ Texas - Austin, Dept Geological Sciences, C1100, Austin, TX 78712-1101, doug@maestro.geo.utexas.edu, doug@maestro.geo.utexas.edu
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10:30 AM
A METASOMATIC ORIGIN FOR LARAMIDE TECTONISM AND MAGMATISM
HUMPHREYS, Eugene D., Geological Sciences, Univ of Oregon, Eugene, OR 97403, ERSLEV, Eric, Earth Resources, Colorado State Univ, Fort Collins, CO 80523 and FARMER, Lang, Geological Sciences, Univ of Colorado, Boulder, CO 80309, gene@newberry.uoregon.edu, gene@newberry.uoregon.edu
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10:45 AM
MECHANISMS FOR PRECAMBRIAN BASEMENT CONTROL OF LARAMIDE AND ANCESTRAL ROCKY MOUNTAIN STRUCTURES
ERSLEV, Eric A.1, BOLAY, Nicole V.1, EHRLICH, Timothy K.1 and KARLSTROM, Karl E.2, (1)Department of Earth Resources, Colorado State Univ, Fort Collins, CO 80523, (2)Earth & Planetary Sciences, Univ of New Mexico, Northrop Hall, Albuquerque, NM 87131, erslev@cnr.colostate.edu, erslev@cnr.colostate.edu
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11:00 AM
INFLUENCE OF THE COLORADO MINERAL BELT ON THE NORTHWEST MARGIN OF THE DENVER BASIN
KELLEY, Shari A., Dept. of Earth and Environmental Science, New Mexico Tech, Socorro, NM 87801, CHAPIN, Charles E., New Mexico Bureau of Mines and Mineral Resources, Socorro, NM 87801 and RAYNOLDS, Robert G., Denver Museum of Nature and Sci, 2001 Colorado Blvd, Denver, CO 80205, sakelley@ix.netcom.com, sakelley@ix.netcom.com
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11:15 AM
THE FLUVIAL RECORD OF ROCKY MOUNTAIN EPEIROGENY - A REVIEW
PAZZAGLIA, Frank J.1, WISNIEWSKI, Paul A.2 and ZAPROWSKI, Brent1, (1)Dept. of Earth and Environmental Sciences, Lehigh Univ, 31 Williams Dr, Bethlehem, PA 18015-3188, (2)Division of Oil, Gas, and Mining, Utah Dept of Nat Rscs, 1594 West North Temple, Suite 1210, P.O. Box 145801, Salt Lake City, 84114, fjp3@lehigh.edu, fjp3@lehigh.edu
 
11:30 AM
Discussion
 
11:45 AM
Concluding Remarks
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