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North-Central Section - 48th Annual Meeting (24–25 April)

Session No. 14
Friday, 25 April 2014: 8:15 AM-12:00 PM
Arbor 1 (Cornhusker Marriott)

T5. Carbonatites and Other Alkalic Rocks

 

Richard M. Kettler, Philip L. Verplanck and Benjamin J. Drenth, Advocates
Paper #
Start Time
 
8:15 AM
Introductory Remarks
1
8:20 AM
SLAB-EDGE MODEL FOR KIMBERLITE-CARBONATITE MAGMATISM, MID-CONTINENT NORTH AMERICA
DUKE, Genet I., Geology, Arkansas Tech University, 1701 N. Boulder Avenue, Russellville, AR 72801, gduke1@atu.edu, gduke1@atu.edu
2
8:40 AM
THE ELK CREEK CARBONATITE COMPLEX
KETTLER, Richard M.1, BLESSINGTON, Michael Joseph1, VERPLANCK, Philip L.2 and FARMER, G. Lang3, (1)Department of Earth & Atmospheric Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0340, (2)U.S. Geological Survey, P.O. Box 25046, M.S. 973, Denver Federal Center, Denver, CO 80225-0046, (3)Department of Geological Sciences, University of Colorado, Boulder, CO 80309, rkettler1@unl.edu, rkettler1@unl.edu
3
9:00 AM
GEOPHYSICAL EXPRESSION OF THE ELK CREEK CARBONATITE, NEBRASKA: A BURIED NIOBIUM AND RARE EARTH ELEMENT DEPOSIT
DRENTH, Benjamin J., U.S. Geological Survey, MS 964 Denver Federal Center, Denver, CO 80225, bdrenth@usgs.gov, bdrenth@usgs.gov
4
9:20 AM
RARE EARTH ELEMENT VARIATIONS IN THE ELK CREEK CARBONATITE, S.E. NEBRASKA
VERPLANCK, Philip L., U.S. Geological Survey, P.O. Box 25046, M.S. 973, Denver Federal Center, Denver, CO 80225-0046, FARMER, G. Lang, Department of Geological Sciences, University of Colorado, Boulder, CO 80309, BLESSINGTON, Michael Joseph, Department of Earth and Atmospheric Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0340 and KETTLER, Richard M., Department of Earth & Atmospheric Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0340, plv@usgs.gov, plv@usgs.gov
5
9:40 AM
ISOTOPIC EVIDENCE ON THE AGE AND ORIGIN OF THE ELK CREEK CARBONATITE, SE NEBRASKA
FARMER, G. Lang, Dept. of Geological Sciences and CIRES, Univ. of Colorado, Campus Box 399, Boulder, CO 80309-0399, VERPLANCK, Philip L., U.S. Geological Survey, P.O. Box 25046, M.S. 973, Denver Federal Center, Denver, CO 80225-0046, KETTLER, Richard M., Department of Earth & Atmospheric Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0340 and BLESSINGTON, Michael Joseph, Department of Earth and Atmospheric Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0340, farmer@colorado.edu, farmer@colorado.edu
 
10:00 AM
Break
6
10:20 AM
MULTI-GENERATIONAL NIOBIUM MINERALIZATION AT THE ELK CREEK CARBONATITE, ELK CREEK, NE
BLESSINGTON, Michael Joseph1, KETTLER, Richard M.1, VERPLANCK, Philip L.2 and FARMER, G. Lang3, (1)Department of Earth & Atmospheric Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0340, (2)U.S. Geological Survey, P.O. Box 25046, M.S. 973, Denver Federal Center, Denver, CO 80225-0046, (3)Department of Geological Sciences, University of Colorado, Boulder, CO 80309, michael.blessington@huskers.unl.edu, michael.blessington@huskers.unl.edu
7
10:40 AM
A PETROGENETIC RELATIONSHIP BETWEEN ULTRAMAFIC LAMPROPHYRES IN THE NEW MADRID SEISMIC REGION AND SIMILAR INTRUSIONS ASSOCIATED WITH THE ELK CREEK CARBONATITE COMPLEX?
MARIA, Anton H.1, FORD, Chanse M.2 and KING, Maxwell D.2, (1)Department of Geology & Physics, University of Southern Indiana, 8600 University Blvd, Evansville, IN 47712, (2)Geology and Physics, University of Southern Indiana, 8600 University Blvd, Evansville, IN 47712, ahmaria@usi.edu, ahmaria@usi.edu
8
11:00 AM
PHONOLITE AND CARBONATITE: A “COEVAL BREW” IN THE CHICO SILL COMPLEX, NORTHEAST NEW MEXICO
POTTER, Lee S., Earth Science, University of Northern Iowa, 121 Latham Hall, Cedar Falls, IA 50614, lee.potter@uni.edu, lee.potter@uni.edu
9
11:20 AM
GENESIS OF CARBONATITE-RELATED FLUORSPAR DEPOSITS: OKORUSU FLUORSPAR MINES, NORTH-CENTRAL NAMIBIA
HAGNI, Richard D., Geological Sciences and Engineering, Missouri University of Science and Technology, 27 Johnson Drive, Rolla, MO 65409, rhagni@mst.edu, rhagni@mst.edu
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