Nelia Dunbar

Annual Activity Report 2004

See my home page for links to abstracts of papers and talks (under "Publications")

 

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

Aster, R., McIntosh, W., Kyle, P., Esser, R., Bartel, B., Dunbar, N., Johns, B., Johnson, J., Karstens, R., Kurnik, C., McGowan, M., McNamara, S., Meertens, C., Pauly, B., Richmond, M., and Ruiz, M., 2004, Real-time date received from Mount Erebus Volcano, Antarctica: EOS Transactions of the American Geophysical Union, v. 85, no. 10, p. 97-101.

Dunbar, N., and Phillips, F., 2004, Cosmogenic 36Cl ages of lava flows in the Zuni-Bandera volcanic field, north-central New Mexico, USA: New Mexico Bureau of Mines and Mineral Resources Bulletin, v. 160, p. 51-59.

Dunbar, N. W., 2005, Quaternary Volcanism in New Mexico: New Mexico Museum of Natural History and Science Bulletin, v. 28, p. 95-106.

Koning, D., Aby, S., and Dunbar, N., 2004a, Middle-upper Miocene stratigraphy of the Velarde graben, north-central New Mexico: New Mexico Geol. Soc. Guidebook, v. 55, p. 358-373.

Taylor, K. C., Alley, R. B., Meese, D. A., Spencer, M. K., Brook, E. J., Dunbar, N. W., Finkel, R., Gow, A. J., Kurbatov, A. V., Lamorey, G. W., Mayewski, P. A., Meyerson, E., Nishiizumi, K., and Zielinski, G. A., 2005, Dating the Siple Dome, Antarctica Ice Core by Manual and Computer Interpretation of Annual Layering: Journal of Glaciology, v. in press.

 

Papers Presented at Professional Meetings

Dunbar, N.W., Kurbatov, A., Zielinski, G., McIntosh, W.C., Price, P.B., and Bay, R.C., 2004, Volcanic ash records in the Siple Dome Ice Core: Siple Dome Principal Investigator Meeting, Reno, NV, Feb. 24, 2004.

Dunbar, N. W., McIntosh, W. C., Kurbatov, A., and Zielinski, G. A., 2004, Tephrochronology of Antarctic blue ice areas and ice cores: IAVCEI International Volcanological Congress, Pucon, Chile.

Dunbar, N. W., and McLemore, V. T., 2004, Evidence for high temperature, diffusion-controlled crystallization of spherulites in a rhyolitic lava flow: IAVCEI International Volcanological Congress, Pucon, Chile.

Harpel, C. J., Kyle, P. R., and Dunbar, N. W., 2004, Englacial tephra from Mount Erebus, Antarctica: IAVCEI International Volcanological Congress, Pucon, Chile.

Koning, D., Ferguson, J., Paul, P., Dunbar, N., and Baldridge, W. S., 2004b, Structure and middle-upper Miocene stratigraphy of the Velarde Graben, north-central New Mexico, and late Cenozoic tectonic implications: New Mexico Geological Society Abstract Volume, p. 33.

Love, D. W., Dunbar, N. W., McIntosh, W. C., Connell, S. D., Sorrell, J., and Pierce, D., 2004, Plio-pleistocene faults and unconformities in and between the Arroyo Ojito and Sierra Ladrones formations and post-Santa Fe group piedmont, Mesa Del Sol, Llano de Manzano, central Albuquerque Basin, New Mexico: New Mexico Geological Society Abstract Volume, p. 39.

McIntosh, W. C., and Dunbar, N. W., 2004, High-precision 40Ar/39Ar dating of a 10 ka to 492 ka sequence of englacial tephra layers at Mt. Moulton, Antarctica: IAVCEI International Volcanological Congress.

Popp, T. J., Sowers, T., Dunbar, N. W., McIntosh, W. C., and White, J. W., 2004, Radioisotopically Dated Climate Record Spanning the Last Interglacial in Ice from Mount Moulton, West Antarctica: EOS Trans. Am. Geophys. Union, v. 85, no. 47.

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

 

Seminars and/or Speaking Engagements

Invited to present talk at Siple Dome PI meeting.

Presented talk about Antarctica to the Oasis educational group in Albquerque

 

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

-Geological and hydrological characterization at the Molycorp Questa Mine, Taos County, New Mexico

 

Research Contracts and Grants Proposed

Ar-Ar daging, geochemical correlation, and field studies of Quaternary basalts in the Grand Canyon: rate of incision, neotectonic slip rates and history of lava dams (submitted to NSF)

Tephrochronology of Inland Wais Core (submitted to NSF)

 

Service on Graduate Student Committees (list student and title of project and if you are major supervisor)

Committee member for Ariel Dickens (MS). Investigation of Ar dating systematics of obsidian

Committee member for Peter Kelly (MS). Evolution Of Phonolitic Magmas At Mt Erebus, Antarctica

Committee member for Dawn Sweeney (MS). Gas emissions of Mt. Erebus volcano

Committee member of Jean Wardel (PhD). Degassing systematics of Mt. Erebus, Antarctica.

Committee member for Jennifer Wilson (PhD). Fault processes within the Bandelier Tuff

Committee member for Erin Phillips (MS). Geochronology of post-caldera rhyolite domes in the Valles Caldera

Committee member for Jessica Cox. Geochemical and Petrographic characteristics of upper mantle xenoliths of the southwestern United States.

Courses Taught

Geochem 575. Fall 2003. ATheory and Practice of Electron Microprobe Analysis@ class. 8 students total.

Continuing Education Courses Given/Taken

 

Service on Institute Committees

Member of New Mexico Tech strategic planning committee

 

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

Member of American Geophysical Union

Member of Microbeam Analysis Society

Member of New Mexico Microbeam Users Group

 

Service on Commissions/Councils/Boards

Ex-officio member of the McMurdo Station Area User=s Committee.

Member of Antarctic Glaciology Data Center advisory board

Member of NSF Committee of Visitors assessing Polar Science Division

 

Bureau Service Projects Active This Period

-Associate Director for laboratories

-Member of Bill Raatz tenure committee

-Co-organizer of Bureau/E&ES seminar series

-Construction and maintenance of Carrizozo Malpais website http://geoinfo.nmt.edu/staff/dunbar/carrizozo/carrizozo.html

-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)

*Cosmogenic exposure dating of young basalts in New Mexico

*Englacial tephrochronology of blue ice areas of Antarctica: Implication to ice sheet history and ice-bound climate records.

*Tephrochronology of the Siple and Taylor Dome Ice Cores.

*Tephrochronology of the Law Dome Ice Core.

*Investigation of the eruptive history, chemical composition, magmatic evolution, and chronology of the Los Lunas Volcano, New Mexico. Collaborative research w/ D. Love, W. McIntosh, K. Panter.

*Chemical and mineralogical characterization of the Red Rocks Granite, Burro Mtns, New Mexico (in conjunction with V. McLemore and other)

*Characterization of the mineralogy of the Victorio Mountain skarn (in conjunction w/ V. McLemore)

 

Public Service/Education and Outreach

-Judge for State Science Olympiad Feb 21, 2004

-Participated in field trip for Lycee Rochambeau (March 10-11, 2004)

-Participated in E&ES graduate student recruitment weekend (March 12-13, 2004)

-Hosted 3rd grade class for field trip to microprobe laboratory (May 17, 2004)

-Instructed several session at the 2004 Rockin' around New Mexico workshop (July 7-9, 2004)

-Presented talk for "Oasis" group in Albquerque (Oct. 11, 2004)

-Assisting numerous non-Bureau researchers and students with sample preparation for, and collection and presentation of electron microprobe and scanning electron microscope analyses. Also, assisted researchers at other institutions with electron microprobe questions.

-Provided tours of the electron microprobe facility for New Mexico Tech alumni, New Mexico Tech classes, visiting prospective students, and other educational groups.

-Answering various phone calls and other inquiries about volcanoes, earthquakes, and other aspects of New Mexico geology.

-Giving talks about geology to school groups.

-Adjunct Appointment to E&ES Department -Provided letters of support and information for non-Bureau proposals, particularly relative to electron microprobe laboratory.