Nelia Dunbar

Activity Report 2010

Published Papers (prepare as complete reference citations and attach abstracts not previously submitted)

Dunbar, N.W., 2010, Bandelier National Monument, in Price, L.G., ed., The Geology of Northern New Mexico's Parks, Monuments and Public Lands, Volume 1: Socorro NM, New Mexico Bureau of Geology and Mineral Resources, p. 145-152.

—, 2010, El Malpais National Monument, in Price, L.G., ed., The Geology of Northern New Mexico's Parks, Monuments and Public Lands, Volume 1: Socorro NM, New Mexico Bureau of Geology and Mineral Resources, p. 25-34.

—, 2010, Kasha-Katuwe Tent Rocks National Monument, in Price, L.G., ed., The Geology of Northern New Mexico's Parks, Monuments and Public Lands, Volume 1: Socorro NM, New Mexico Bureau of Geology and Mineral Resources, p. 153-158.

—, 2010, Valles Caldera National Preserve, in Price, L.G., ed., The Geology of Northern New Mexico's Parks, Monuments and Public Lands, Volume 1: Socorro NM, New Mexico Bureau of Geology and Mineral Resources, p. 135-144.

McLemore, V.T., Dunbar, N.W., Tachie-Menson, S., and Donahue, K., 2010, The effect of weathering on the acid-producing potential of the Goathill North Rock Pile, Questa mine, NM, Tailings and Mine Waste '10, Volume Proceedings of the 14th International Conference on Tailings and Mine Waste: Vail, CO, p. 213-227.

Geologic Maps (OF-GMs and GMs)

Books (written or edited)

Papers Presented at Professional Meetings (including abstracts; cite as complete references and attach abstract)

Antibus, J.V., Panter, K., Dunbar, N., Wilch, T., and McIntosh, W., 2010, Oxygen isotope and cation chemistry: Evidence of multiple water sources influencing the alteration of Antarctic hyaloclastites: Geochimica et Cosmochimica Acta, v. 74, p. A26-A26.

—, 2010, Stable isotope, cation chemistry and petrographic evidence of multiple water sources influencing the alteration of Antarctic hyaloclastites, Abstract AV13E-2402 presented at 2010 Fall Meeting, AGU, San Francisco.

Connell, S.D., Smith, G.A., Geissman, J.W., McIntosh, W., Dunbar, N.W., Love, D.W., and Cather, S.M., 2010, 40Ar/39Ar geochronology, magneticpolarity stratigraphy, and tephrochronology of Plio-Pleistocene deposits in the Albuquerque basin, Rio Grande Rift, New Mexico: New Mexico Geological Society Abstract Volume, p. 9.

Crow, R., Karlstrom, K., McIntosh, W., Peters, L., and Dunbar, N., 2010, Reconstructing western Grand Canyon’s lava dams and their failure mechanisms: new insights from geochemical correlation and 40Ar/39Ar dating, Abstract EP43B-0754 presented at 2010 Fall Meeting, AGU, San Francisco.

Dunbar, N.W., Kelley, S.A., Goff, F., McIntosh, W., and Heizler, L., 2010, Stratigraphy and geochemistry of early pyroclastic eruptions at Mt. Taylor volcano, New Mexico: New Mexico Geological Society Abstract Volume, p. 12.

Dunbar, N.W., Kurbatov, A.V., Koffman, B.G., and Kreutz, K.J., 2010, Tephra Record of Local and Distal Volcanism in the WAIS Divide Ice Core, 2010 WAIS Divide Science Meeting: La Jolla, CA.

Goff, F., Kelley, S.A., Osburn, G.R., Lawrence, J.R., Goff, C.J., Ferguson, C.A., McIntosh, W., Fellah, K., Dunbar, N.W., and Wolff, J.A., 2010, Evolution of Mount Taylor composite volcano, New Mexico: New Mexico Geological Society Abstract Volume, p. 17.

Kammerer, M.M., Kyle, P.R., and Dunbar, N.W., 2010, Nature and Origin of Volcanogenic Salts Deposits around the Crater of Erebus volcano, Antarctica, Abstract V31C-2339 presented at 2010 Fall Meeting, AGU, San Francisco.

Koffman, B.G., Kreutz, K.J., Breton, D.J., Dunbar, N.W., Kurbatov, A.V., Mayewski, P.A., and Wells, M.L., 2010, Microparticle Concentration in the WAIS Divide Ice Core over the Past 2.3 ka: Seasonal Variation and Volcanic Input, 2010 WAIS Divide Science Meeting: La Jolla, CA.

Phillips, E., Goff, F., Kyle, P., Dunbar, N., McIntosh, W., and Gardner, J.E., 2010, 40Ar/39Ar age constraints on the of resurgence and post-collapse rhyolites at Valles Caldera, Jemez Mountains, New Mexico: Geological Society of America Abstracts with Program, v. 42, p. 52.

Sims, K.W.W., Pichat, S., Reagan, M., Dunbar, N.W., Kyle, P., Sawyer, G., Gauthier, P., and Bichert-Toft, J., 2010, Do 226Ra-230Th isochrons provide realistic crystallization ages?, Cities of Volcanoes 6: Tenerife, Canary Islands, p. 17.

Reports and Miscellaneous Publications (Unpublished reports; include reports of contract research; open-file reports etc.)

                                                                                                         
Journals Edited

Seminars and/or Speaking Engagements

• Presentation on geology of the Jemez Mountains at Bookworks to promote the Parks and Monuments book (July, 2010)

• Scientific presentation at Ft. Lewis College (Oct. 2010) along with recruiting for NMT.

• Scientific presentation for Albuquerque Gem and Mineral Club (Oct, 2010)

Research Contracts and Grants Awarded (only title, not amounts to be posted on internet)

Research Contracts and Grants Proposed

Geological mapping near Mount Taylor, New Mexico:  Insight into early eruptive processes of a major composite volcano.  Submitted to EDMAP

Awards and Other Recognitions

Service on Graduate Student Committees (list student and title of project and if you are major supervisor)
Committee member for Russell White (MS). Trench sediment characterization and cementation
Committee member for Jake Ross (MS). Chronology of the ANDRILL core
Committee member for Matt Zimmerer (MS). Chronology and geochemistry of the Latir Volcanic field
Committee member for Shasta Marrero (PhD).  Cosmogenic investigations as part of CHRONOS project.
Committee member for Bess Koffman (PhD).  Investigation of Fe particulates in the WAIS Divide ice core (University of Maine).
Committee member for Melissa Kammerer (MS)  Investigation of Mount Erebus salts
Committee member for Nels Iverson (MS)  Investigation of Mount Erebus tephra

Courses Taught

Theory and Practice of Electron Microprobe Analysis (GEOC 589). Fall 2010

Assisted in A. Campbell’s “Stable Isotope” classes

 Continuing Education Courses Given/Taken

Service on Institute Committees

Service in Professional Societies   (it is your choice whether you wish to include this information on internet site)

• Member of NMGS executive committee (treasurer)
• Member of American Geophysical Union
• Member of the Mineralogical Society of America
• Member of Microbeam Analysis Society
• Member of New Mexico Microbeam Users Group

Service on Commissions/Councils/Boards

Bureau Service Projects Active This Period

• On committee for selecting LIMS system for Bureau laboratories
• Participated in field trip for legislators (Feb, 2010)
• Attended NMT cabinet meeting (July, 2010)
• Bureau representative for Bureau/EES seminar series
• One of organizers for Bureau “Relay for Life” team
• On search committee for Bureau Director Member of building committee
• Associate Director for laboratories
• Adjunct in EES Department
• Maintenance of Electron Microprobe and Carrizozo Malpais Bureau web pages
• Bureau Equipment Committee member
• Member of the Geological Editorial Board for Lite Geology
• Assisting numerous Bureau researchers and students with sample preparation for, and collection and presentation of electron microprobe and scanning electron microscope analyses.
• Providing tours of the electron microprobe facility for New Mexico Tech alumni, New Mexico Tech classes, and visiting educational groups.
• Answering various phone calls and other inquiries about volcanoes, earthquakes, and other aspects of New Mexico geology
• Provided letters of support and information for Bureau proposals, particularly relative to electron microprobe laboratory.

Research Projects Active This Period

• Investigation of the long-term stability of waste rock piles at the Molycorps/Questa Mine
• Tephrochronology, chemical fingerprinting, and correlation of tephra layers in ancestral Rio Grande sediments. (in conjunction with D. Love, S. Connell, S. Cather, W. McIntosh, and others)
• Englacial tephrochronology of blue ice areas of Antarctica: Implication to ice sheet history and ice-bound climate records.  (NSF funded)
• Tephrochronology of the Siple and Taylor Dome Ice Cores.  (NSF funded)
• Tephrochronology of the South Pole SPRESSO Core. (NSF funded)
• Tephrochronology of the WAIS Divide Core.  (NSF funded)
• Tephrochronology of the ANDRILL Core. (NSF funded)
• Investigation of the volcanic geology of Minna Bluff, Antarctica (NSF funded)
• Detrital monazite geochronology of Ortega quartzite clasts in Pennsylvanian strata of the Northern Truchas uplift, Northern New Mexico: implications for the slip history of the Picuris-Pecos fault
• Investigation of Lake Mead area tephrochronology (NSF funded)
• Investigation of field and geochemical characteristics of early pyroclastic deposits from Mt. Taylor (in conjunction with S. Kelley, F. Goff and B. McIntosh)
• Chemical composition of the Quilitoa caldera  (Ecuador) pyroclastic eruptions (in conjunction with P. Mothes, Ecuador Geophysical Institute)

Public Service/Education and Outreach

• Involved in instruction for Lycee Rochambeau geology field trip (Feb, 2010)
• Participated in E&ES graduate student recruitment weekend (late Feb, 2010).  Gave several lab tours as part of visit.
• Judged at New Mexico State Science Fair (April, 2010)
• Tour of electron microprobe class for Highlands University students (Sept. 2010)
• Attended workshop to form and plan Jemez Mountains Research group (Sept. 2010)
• Zuni-Bandera lava flow workshop with Grants 7th graders (Sept. 2010)
• Presentations for several school groups in Buffalo, NY (Buffalo Seminary (all girls high school; Nichols School (high school) (Oct. 2010)

         
Papers and Proposals Reviewed
A number of papers and proposals reviewed for journals and NSF.  Also, two book chapters reviewed for Cambridge University Press.