Karen Harpp - Geology Faculty at Colgate University

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Karen Harpp

Karen Harpp

Associate Professor of Geology
Geology, 424 Ho Science Center
p 315-228-7211

Degrees

BA, Dartmouth College, 1986; MS (1990), PhD (1995), Cornell University

Teaching Experience

Assistant professor of chemistry, Lawrence University, 1994-98

Teaching Specialties

Instrumental and analytical techniques in the geosciences, geochemistry, volcanology, igneous petrogenesis, environmental geochemistry.

Research Interests

Geochemistry and petrology of hotspots and the mantle (current focus: the origin and evolution of the Galápagos Islands and plume-ridge interactions), environmental geochemistry (local studies), analytical geochemistry and trace element analysis (ICP-MS), science education and outreach programs with an emphasis on hands-on experiences.

Distinctions

  • Included in the Princeton Review's The Best 300 Professors, 2012
  • 2010 Alumni Corporation Distinguished Teaching Award Fellow, Geological Society of America
  • Recipient of the 2002 Biggs Excellence in Teaching Award from GSA
  • National Science Foundation research and instrumentation grants
  • NSF Career Grant Program
  • Professor of the Week, Student Government Association, Colgate University (March 2000, February 2002)
  • Remick Poster Competition winner for Geological Association of Canada Annual Meeting (2001)
  • Outstanding Professor (Geology, Physics, and Astronomy Departments) as voted by the fraternity and sorority system, Colgate University 2000
  • Outstanding Young Teacher Award, Lawrence University 1997
  • Mortar Board Honorary Award, Lawrence University 1997
  • Mrs. H.K. Babcock Award, Lawrence University 1997
  • Faculty for the 21st Century Network, Class of '96

Publications

(*indicates student author)

Harpp, K.S., Hall, P.S., Jackson, M.G. (in press): The Galápagos and Easter: A Tale of Two Hotspots, in The Galápagos: A Natural Laboratory for the Earth Sciences. Editors: K. Harpp, E. Mittelstaedt, D. Graham, N. d’Ozouville, American Geophysical Union, Washington, DC.

Harpp, K.S., Geist, D., *Koleszar, A.M., *Christensen, B., Lyons, J., Sabga, M., *Rollins, N. (in press): The geology and geochemistry of Isla Floreana, Galápagos: A different type of late-stage ocean island volcanism, in The Galápagos: A Natural Laboratory for the Earth Sciences. Editors: K. Harpp, E. Mittelstaedt, D. Graham, N. d’Ozouville, American Geophysical Union, Washington, DC.

Harpp, K.S., Wirth, K.R., Teasdale, R., *Blair, S., *Reed, L., *Barr, J., *Pistiner, J. *Korich, D. (in press): Plume-Ridge Interaction in the Galápagos: Perspectives from Wolf, Darwin, and Genovesa Islands, in The Galápagos: A Natural Laboratory for the Earth Sciences. Editors: K. Harpp, E. Mittelstaedt, D. Graham, N. d’Ozouville, American Geophysical Union, Washington, DC.

Sinton, C. W., Harpp, K.S., Christie, D.M. (in press): The northeast seamounts of the Galápagos Platform, in The Galápagos: A Natural Laboratory for the Earth Sciences. Editors: K. Harpp, E. Mittelstaedt, D. Graham, N. d’Ozouville, American Geophysical Union, Washington, DC.

Mittelstaedt, E., Soule, S., Harpp, K., Fornari, D.: Variations in crustal thickness, plate rigidity, and volcanic processes throughout the Northern Galápagos Volcanic Province, in The Galápagos: A Natural Laboratory for the Earth Sciences. Editors: K. Harpp, E. Mittelstaedt, D. Graham, N. d’Ozouville, American Geophysical Union, Washington, DC.

Geist, D.J. and Harpp, K.S. (2009): “Geology of the Galapagos Islands”, in Encyclopedia of Islands, edited by Rosemary G. Gillespie and David A. Clague, University of California Press, Berkeley, CA.

Harpp, K.S. (lead editor), Mittelstaedt, E. (lead editor), D’Ozouville, N. (editor), and Graham, D. (editor), The Galápagos: A Natural Laboratory for the Earth Sciences, due out in late 2013/early 2014, American Geophysical Union Monograph, Washington, DC. 

Vidito, C., Herzberg, C., Gazel, E., Geist, D., Harpp, K. (2013), Lithologic structure of the Galápagos plume, Geochemistry, Geophysics, Geosystems, volume 14, issue 10, pp. 4214-4240.

Peñaherrera-Palma, C., Harpp, K., Banks, S. (2013): Rapid seafloor mapping of the Galápagos northern islands Darwin and Wolf, volume 68, Noticias de Galápagos/Galápagos Research, http://datazone.darwinfoundation.org/media/journal/pdf/GR_68_CPenaherreraKHarpp
%26SBanks_Seafloor_1.pdf.

Mittelstaedt, E., Soule, S., Harpp, K., Fornari, D., *McKee, C., Tivey, M., Geist, D., Kurz, M.D., Sinton, C., *Mello, C. (Volume 13, Q05018, 31 pp., 2012 Geochemistry Geophysics, Geosystems). Multiple expressions of plume-ridge interaction in the Galápagos: Volcanic lineaments and ridge jumps.

Chadwick Jr., W.W., Jónsson, S., Geist, D.J., Poland, M., Johnson, D.J., Batt, S., Harpp, K.S., and Ruiz, A. (2011): The May 2005 eruption of Fernandina volcano, Galápagos: GPS and InSAR observations of a circumferential dike intrusion from a multi-level magmatic system, Bulletin of Volcanology, 73 (6), 679-697, DOI: 10.1007/s00445-010-0433-0.

Geist, D.J. and Harpp, K.S. (2009): Geology of the Galápagos Islands, in Encyclopedia of Islands, Editors: R.G. Gillespie and D.A. Clague, University of California Press, Berkeley, CA.

Geist D., Diefenbach, B.A., Fornari, D. J., Kurz, M.D., Harpp, K.S., Blusztajn, J. (2008): Construction of the Galápagos platform by large submarine volcanic terraces, Geochem. Geophys. Geosyst., 9, Q03015, doi:10.1029/2007GC001795.

Geist, D.J., Harpp, K.S., Naumann, T.R., Poland, M., Chadwick, W.W., Hall, M., and *Rader, E. (2007): The 2005 Eruption of Sierra Negra Volcano, Galápagos, Ecuador, Bulletin of Volcanology. DOI 10.1007/s00445-007-0160-3.

Geist, D.J., Fornari, D.J., Kurz, M.D., Harpp, K.S., Soule, S.A., Perfit, M.R., and *Koleszar, A.M. (2006): Submarine Fernandina: Magmatism at the Leading Edge of the Galápagos Hot Spot, Geochemistry Geophysics Geosystems, 7, Q12007, doi:10.1029/2006GC001290.

Lyons , J., Geist, D., Harpp, K., Diefenbach, B., Olin, P., and Vervoort, J. (2007): Crustal Growth by Magmatic Overplating in the Galápagos, Geology, 35 (6), 511-514.

Geist, D.J., Naumann, T.R., Standish, J.J., Kurz, M.D., Harpp, K.S., White, W.M., and Fornari, D.J., (2005): "Wolf Volcano, Galápagos Archipelago: Melting and Magmatic Evolution at the Margins of a Mantle Plume," Journal of Petrology, 2005 46(11): 2197-2224.

Harpp, K.S., *Wanless, V.D., Otto*, R.H., Hoernle, K., and Reinhard Werner (2005): "The Cocos and Carnegie Ridges: A Trace Element Record of Long-term Plume-Ridge Interaction", Journal of Petrology, 46, 109-133.

Teasdale, R., Geist, D., Kurz, M., and Harpp, K., (2005): "1998 Eruption at Volcan Cerro Azul, Galápagos Islands: I. Syn-Eruptive Petrogenesis," Bulletin of Volcanology, 76, 170-185.

Harpp, K.S., *Koleszar, A.M., and Geist, D.J. (2005): "Volcanoes in the Classroom: Eruption Column Simulation," Journal of Geoscience Education, 53, 173-175. Link to webpage with supporting information.

Harpp, K.S., Fornari, D.J., Geist, D.J., and Kurz, M.D. (2003): "Genovesa Submarine Ridge: A Manifestation of Plume-Ridge Interaction in the Northern Galápagos Islands," Geochemistry Geophysics Geosystems, 4, 8511, doi: 10.1029/2003GC000531.

Geldmacher, J., Hanan, B.B., Blichert-Toft, J., Harpp, K., Hoernle, K., Hauff, F., Werner, R., and Kerr, A.C., (2003): "Interaction in the Northern Galápagos Islands Hafnium isotopic variations in volcanic rocks from the Caribbean Large Igneous Province and Galápagos hotspot tracks," Geochemistry Geophysics Geosystems, 4, 1062, doi:10.1029/2002GC00477.

Harpp, K.S. and Geist, D. (2002): "The Wolf-Darwin Lineament and Plume-Ridge Interaction in the Northern Galápagos," Geochemistry Geophysics Geosystems, 3, 8504, doi:10.1029/2002GC000370.

Geist, D., White, W.M., Albarede, F., Harpp, K.S., Blichert-Toft, J., Reynolds, R., and Kurz, M. (2002): "Volcanic Evolution in the Galápagos: The Dissected Shield of Volcan Ecuador," Geochemistry Geophysics Geosystems, 3, 10611, doi:10.1029/2002GC000355.

Harpp, K.S., Wirth, K.R., and *Korich, D.J. (2002): "Northern Galápagos Province: Hotspot-induced, near-ridge volcanism at Genovesa Island," Geology, 30, 399-402.

"Simulating a volcanic crisis in the classroom," with W. Sweeney (Journal of Geologic Education, 2002, v. 50, p. 410-418); "Northern Galápagos Province: Hotspot-induced, near-ridge volcanism at Genovesa Island," with K. Wirth and D. Korich (Geology, 2002, v. 30, p. 399-402).

"Tracing a mantle plume: Isotopic and trace element variations of Galápagos seamounts, Geochemistry, Geophysics, and Geosystems," with W. White (June 27, 2002; Vol. 2, [Paper number 2000GC00137].

"The Role of a Cl-bearing Flux in the Origin of Depleted Ocean Floor Magmas, Geochemistry, Geophysics, and Geosystems," with R. Nielsen and R. Sours-Page, Vol. 1.

"Restricted Nitrogen Inversion in 9,10- Diazatetracyclo[6.3.0.0.4,110.5,9]undecanes: Dynamic NMR Studies," with C. Bushweller, J. Brown, B. Hirth, T. Barden, J. D'Albis, and G. Gribble (Journal of Organic Chemistry, 1998, v. 63, no. 11, p. 3775-3777)

"The emergence of a Galápagos shield volcano: Roca Redonda Volcano," with J. Standish, D. Geist, and M. Kurz (Contributions to Mineralogy and Petrology, 1998, v. 133, p. 136-148); "Geochemical variations in a single basaltic flow at 9°30' N on the East Pacific Rise," (Scientific Results, Proceedings of the Ocean Drilling Program, 1995, v. 142, p. 9-22)


Articles in Non-Peer Reviewed Journals

Harpp, K.S. (2002): “How do volcanoes affect world climate?”, Ask the Experts, Scientific American, posted April 15 at www.scientificamerican.com.

Harpp, K.S. (2002): “How do geysers work?”, Ask the Experts, Scientific American, posted January 7 at www.scientificamerican.com.

Geist, D.J., Bohrson, W., and Harpp, K.S. (1998): “Penrose Conference report: Evolution of ocean island volcanoes”, GSA Today, 8 December, 18-21.

Geist, D.J., Bohrson, W., and Harpp, K.S. (1998): “Penrose Conference report: Evolution of ocean island volcanoes”, Episodes (IUGS), 21, 261-264.

Conference Papers

*denotes a Colgate University undergraduate

Morrow, T., Mittelstaedt, E.; Harpp, K. S. (2013): Geochemistry of Intra-Transform Lavas from the Galápagos Transform Fault, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA., abstract S51C-2379.

Sinton, C., Mittelstaedt, E. L., Harpp, K. S. (2013): The Temporal Evolution of the Northern Galápagos Volcanic Province, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA., abstract V13F-2674.

Peterson, M., Saal, A., Hauri, E., Kurz, M., Werner, R., Hauff, F., Geist, D., Harpp, K. (2013): Volatile budget of Galápagos plume, Goldschmidt Meeting, Florence, Italy.

Dufek, J., Benage, M.C., Geist, D., Harpp, K. S. (2013): Flow Transformation in Pyroclastic Density Currents: Entrainment and Granular Dynamics during the 2006 eruption of Tungurahua, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA., abstract V23C-2864.

Harpp, K.S. (invited), Hall, P.S., Jackson, M.G. (2012), Galápagos and Easter: A tale of two hotspots, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Dennis, K.J., McClinton, J.T., White, S., Hoernle, K., Mittelstaedt, E.L., Harpp, K.S. (2012), Bathymetry of the Galápagos Spreading Center from a synthesis of 25 years of ship-based multibeam sonar data, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Wilson, E.L., Schwartz, D.M., *Van Kirk, R., Harpp, K.S. (2012), Geochemistry of Isla Santa Cruz, Galápagos Archipelago, Ecuador, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Schwartz, D.M., Wilson, E.L., *Van Kirk, R., Harpp, K.S., Kattenhorn, S.A. (2012), Structural analysis of Santa Cruz Island, Galápagos, and implications for future deformation, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Morrow, T.A., Mittelstaedt, E.L., Harpp, K.S., Soule, S.A. (2012), Statistical analysis of submarine fault populations associated with oceanic transform boundaries, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Sinton, C.W., Mittelstaedt, E.L., Harpp, K.S. (2012), New age constraints on the eruptive history of the Northern Galápagos Volcanic Province, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Harpp, K.S., *Schlitzer, W., Morrow, T., Mittelstaedt, E. (2012), Isotopic variations in the Northern Galápagos Volcanic Province, Goldschmidt Geochemistry Conference, Montreal, Canada.

Harpp, K.S., Walters, R. L., Mittelstaedt, E.L. (2011), Lithospheric controls on volcanic processes in the Northern Galápagos Volcanic Province, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

*Schlitzer, W., Harpp, K.S., Mittelstaedt, E.L., Kurz, M.D., Geist, D. (2011), The effect of lithospheric discontinuities on the composition of lavas from the Northern Galápagos Platform Etension, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Mittelstaedt, E.L., Soule, S.A., Harpp, K.S., Fornari, D.J. (2011), Multiple epressions of plume-ridge interaction at the Galápagos: Volcanic lineaments and ridge jumps, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Sinton, C.W., Harpp, K.S., Mittelstaedt, E.L., Soule, S.A. (2011), Age constraints on the eruptive history of the Northern Galápagos Volcanic Province, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Kurz, M., Harpp, K., Geist, D., Fornari, D., Curtice, J. (2011), Novel applications of noble gases in the Galápagos Archipelago, AGU Chapman Conference, Galápagos Islands, Ecuador, July, 2011.

Peterson, M.E., Saal, A., Hauri, E., Kurz, M., Werner, R., Hauff, F., Geist, D, Harpp, K. (2011), Volatile budget of the mantle sources of the Galápagos plume, AGU Chapman Conference, Galápagos Islands, Ecuador, July, 2011.

*Schlitzer, W., Harpp, K., Kurz, M., Mittelstaedt, E., Fornari, D. (2011), Plume-Ridge Interaction in the Galápagos III: The origins of Pinta, Marchena, and Genovesa Islands, AGU Chapman Conference, Galápagos Islands, Ecuador, July, 2011.

Wilson, E., Harpp, K. (2011), Plume-Ridge Interaction in the Galápagos II; Volcanic evolution of the Northern Galápagos Islands, AGU Chapman Conference, Galápagos Islands, Ecuador, July, 2011.

Soule, S., Mittelstaedt, E., Harpp, K., Fornari, D., Geist, D. (2011), Evaluating ridge-hotspot interaction models through crustal stress indicators in the Northern Galápagos Volcanic Province, AGU Chapman Conference, Galápagos Islands, Ecuador, July, 2011.

Mittelstaedt, E., Soule, S., Fornari, D, Harpp, K. (2011), Plume-ridge interaction at the Galápagos: Insights provided by new gravity and magnetic observations, AGU Chapman Conference, Galápagos Islands, Ecuador, July, 2011.

Harpp, K., Geist, D., Miller, M., Kurz, M., Mittelstaedt, E., Fornari, D. (2011), Plume-Ridge Interaction in the Galápagos I: Lithospheric control on volcanic lineament generation in the Northern Galápagos Province, AGU Chapman Conference, Galápagos Islands, Ecuador, July, 2011.

Carey, A., Lyons, W.B., Harpp, K., Barton, M. (2011), Climate, dust, and soil biogeochemistry on volcanic islands, AGU Chapman Conference, Galápagos Islands, Ecuador, July, 2011.

*Rader, E.L., Geist, D., Geissman, J.W., Harpp, K.S., Dufek, J. (2011), Emplacement temperatures of boiling-over pyroclastic density currents from Tungurahua and Cotopai volcanoes, Ecuador, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Benage, M.C., Dufek, J., Geist, D., Harpp, K. (2011): Surge across the Chambo: Entrainment, topographical influences, and flow transformation of pyroclastic density currents using a combined field and multiphase modeling approach, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Myers, M., Geist, D., Rowe, M. C., Harpp, K., Dufek, J. (2011), Melt inclusion data from the July/August 2006 and May 2010 eruptions of Tungurahua volcano, Ecuador.

*Bray, B., Harpp, K.S., Geist, D., Garcia, M.O., *Swarr, G.J. (2010), Origin of the Vanda Dike Swarm, Dry Valleys, Antarctica, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

*Bray, B., Harpp, K.S., Geist, D., Garcia, M.O., *Swarr, G.J., Buck, S.A., Parcheta, C.E., *Matulaitis, I. (2009), Sr and Nd isotopic and geochemical analysis of the Vanda Dike Swarm, Antarctica, Eos Trans. AGU, 90 (52), Fall Meet. Suppl., Abstract V51C-1685, San Francisco, CA.

*Pollock, N., Harpp, K.S., Geist, D., Dufek, J. (2010), Vegetation damage as a proy for physical characteristics of PDCs, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Kurz, M.D. (invited), Harpp, K.S., Geist, D., Fornari, D.J., Curtice, J., Lott, D., Jenkins, W. (2010), Noble gas tracers of plume-ridge interaction at the Galápagos Archipelago, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

*Moser, K., Harpp, K.S., Ketchum, J.T., Espinoza, E., Penaherrera, C., Banks, S., Fornari, D.J., Geist, D., Mittelstaedt, E.L. (2010), A shark’s eye view of the ocean floor: Integration of oceanographic research with educational outreach, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

*Schlitzer, W., Harpp, K.S., Kurz, M.D., Geist, D., Mittelstaedt, E.L., Fornari, D.J. (2010), The geochemistry of Pinta, Marchena, and Genovesa Islands and the surrounding seafloor in the Galápagos Archipelago, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

*Mello, C., Harpp, K.S., Mittelstaedt, E.L., Geist, D., Fornari, D.J., Soule, S.A. (2010), Investigation of E-W trending parallel ridges north of the Galápagos Archipelago, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

*McKee, C.T., Harpp, K.S., Geist, D., Mittelstaedt, E.L., Fornari, D.J., Soule, S.A. (2010), Morphology, size, and spatial distribution of seamounts in the Northern Galápagos, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Sinton, C.W., Harpp, K.S., Christie, D.M. (2010), Petrology and geochemistry of the Northeast Seamounts of the Northern Galápagos Province, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Tinnin, A., Sinton, C.W., Soule, S.A., Harpp, K.S., Fornari, D.J., Mittelstaedt, E.L. (2010), Morphology of a new Galápagos seamount and effects on local primary productivity, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Harpp, K.S., Mittelstaedt, E.L., Geist, D., Fornari, D.J., Kurz, M.D., Sinton, C.W., *Koleszar, A.M., Soule, S.A. (2010), Perspectives on plume-ridge interaction in the Northern Galápagos Province, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Miller, M., Harpp, K.S., Geist, D., Mittelstaedt, E.L. (2010), Lithospheric evolution of magmas from the Northern Galápagos Province, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

*Cushman, W., Harpp, K.S., Kurz, M.D., Geist, D., Mittelstaedt, E.L., Fornari, D.J., Soule, S.A. (2010), Seamount lineaments of the Northern Galápagos and plume-ridge interaction, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Peterson, M., Saal, A., Hauri, E., Werner, R., Hauff, F., Kurz, M., Geist, D., Harpp, K. (2010), Sources of volatiles in basalts from the Galápagos Archipelago: Deep and shallow evidence, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Fornari, D.J. (invited), Soule, S. A., Harpp, K.S., Mittelstaedt, E.L., Geist, D., Kurz, M.D. (2010), Seafloor Volcanic and Structural Features Adjacent to the 90deg 50’N Transform – Galápagos Spreading Center: Clues for Understanding Plate Boundary Kinematics and Lithospheric Melting Processes, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

*Swarr, G.J., *Garman, K.A., Harpp, K.S., Dufek, J., Geist, D. (2009), A microanalytical perspective on late stage conduit dynamics at Tungurahua and Cotopaxi Volcanoes, Ecuador, Eos Trans. AGU, 90 (52), Fall Meet. Suppl., Abstract V13B-2017, San Francisco, CA.

*Garman, K.A., *Swarr, G.J., Dufek, J., Harpp, K.S., Geist, D. (2009), Clast morphologies and heating experiments constrain the thermal conditions during pyroclastic density current emplacement at Tungurahua volcano, Ecuador, Eos Trans. AGU, 90 (52), Fall Meet. Suppl., Abstract V13B-2018, San Francisco, CA.

*Bray, B., Harpp, K.S., Geist, D., Garcia, M.O., *Swarr, G.J., Buck, S.A., Parcheta, C.E., *Matulaitis, I. (2009), Sr and Nd isotopic and geochemical analysis of the Vanda Dike Swarm, Antarctica, Eos Trans. AGU, 90 (52), Fall Meet. Suppl., Abstract V51C-1685, San Francisco, CA.

*Swarr, G.J., *Garman, K.A., Harpp, K.S., Dufek, J., Geist, D. (2009), A microanalytical perspective on late stage conduit dynamics at Tungurahua and Cotopai Volcanoes, Ecuador, Eos Trans. AGU, 90 (52), Fall Meet. Suppl., Abstract V13B-2017, San Francisco, CA.

*Garman, K.A., *Swarr, G.J., Dufek, J., Harpp, K.S., Geist, D. (2009), Clast morphologies and heating eperiments constrain the thermal conditions during pyroclastic density current emplacement at Tungurahua volcano, Ecuador, Eos Trans. AGU, 90 (52), Fall Meet. Suppl., Abstract V13B-2018, San Francisco, CA.

*Weatherford, E.H., Oswald, P., Harpp, K., Geist, D., *White, B. (2008), The prehistoric development of Hekla Volcano and its modern eruptive style, Eos Trans. AGU, 89 (53), Fall Meet. Suppl., Abstract V11B-2034, San Francisco, CA.

*Swarr, G., Oswald, P., Harpp, K., Geist, D. (2008), Comparison of historic and prehistoric tephra deposits at Hekla Volcano, Iceland, Eos Trans. AGU, 89 (53), Fall Meet. Suppl., Abstract V11B-2035, San Francisco, CA.

Shuttleworth, S., *Swarr, G., Harpp, K., Oswald, P., Geist, D. (2008), Laser ablation ICP-MS of mied pumices from Hekla Volcano, Iceland, Eos Trans. AGU, 89 (53), Fall Meet. Suppl., Abstract V21A-2073, San Francisco, CA.

*Swarr, G., Oswald, P., Harpp, K., Geist, D. (2008), The 1300 AD eruption of Hekla Volcano, Iceland, 43rd Annual Northeast Section Meeting of the Geological Society of America, Buffalo, NY.

*White, B.M., Harpp, K., Geist, D., Oswald, P. (2008), On the sub-glacial ridges surrounding Hekla Volcano, Iceland, 43rd Annual Northeast Section Meeting of the Geological Society of America, Buffalo, NY.

*Turka, J., Harpp, K., Oswald, P., Geist, D. (2008), Geochemical evolution of the Burfell, Southern Iceland, 43rd Annual Northeast Section Meeting of the Geological Society of America, Buffalo, NY.

Buck, S.A., Geist, D.J., Garcia, M.O., Harpp, K., Parcheta, C.E., *Matulaitis, I. (2008), Amphibole content and composition of the Vanda Dike Swarm: Dry Valleys, Southern Victoria Land, Antarctica, Eos Trans. AGU, 89 (53), Fall Meet. Suppl., Abstract V13C-2136, San Francisco, CA.

Parcheta, C., Garcia, M.O., Harpp, K., Geist, D., Buck, S., *Matulaitis, I. (2008), Structural analysis of the Vanda Dike Swarm, McMurdo Dry Valleys, Southern Victoria Land, Antarctica, Eos Trans. AGU, 89 (53), Fall Meet. Suppl., Abstract V13C-2135, San Francisco, CA.

*Perlman, C., Harpp, K., Jordan, B. (2008), A declining Tertiary rift zone: NORÐURFJÖRÐUR, Iceland, 43rd Annual Northeast Section Meeting of the Geological Society of America, Buffalo, NY.

Oswald, P., Geist, D., Harpp, K., *Christensen, B., Wallace, P. (2007), Differentiation of historical Hekla magmas, Eos Trans. AGU, 88 (52), Fall Meet. Suppl., Abstract V13C-1493, San Francisco, CA.

*Christensen, B., Harpp, K.S., Oswald, P., Geist, D.J. (2006), A re-eamination of Hekla’s 20th Century eruptions, Iceland, Eos Trans. AGU, 87 (52), Fall Meet. Suppl., Abstract V11A-0567, San Francisco, CA.

Harpp, K.S. and Geist, D.J. (2006), On the Origin of Volcanism in the Northern Galapagos Islands: Lithospheric Fracturing and Plume-Ridge Interaction, Cities on Volcanoes Conference, Quito, Ecuador.

*Christensen, B.C., Harpp, K.S., Geist, D.J., and *Koleszar, A.M. (2006), The Eruptive and History and Geochemical Evolution of Floreana Island, Galapagos Archipelago, Cities on Volcanoes Conference, Quito, Ecuador.

Geist, D., Harpp, K., and Kurz, M. (2005), The Depleted Galapagos Mantle: Plume or Upper Mantle?, Geochim Cosmochim. Acta, 69, p. A91, Goldschmidt Conference, Moscow, ID.

Diefenbach, B., Geist, D., Kurz, M., Fornari, D, and Harpp, K. (2005), Geochemistry and Morphology of Submarine Terraces from the Southwestern Galapagos Platform, Geochim Cosmochim. Acta, 69, p. A91, Goldschmidt Conference, Moscow, ID.

*LeBon, E.P. and Harpp, K.S. (2005), The Grounds of War: Terrain, Surficial Geology, and the Pacific War, American Association for the Advancement of Science Annual (AAAS) Meeting, Washington, DC.

*Nagle, A.N., Harpp, K.S., and Geist, D.J. (2005), Temporal Geochemical Variations in Lavas From Sakurajima Volcano, Japan, Eos Trans. AGU, 86 (52), Fall Meet. Suppl., Abstract V53B-1566, San Francisco, CA.

*Waymack, S.W., *Carrington, M.P., and Harpp, K.S. (2005), Okinawa, Japan: Geologic Battleground, Eos Trans. AGU, 86 (52), Fall Meet. Suppl., Abstract ED53A-0322, San Francisco, CA.

Harpp, K.S., *Christensen, B.C., Geist, D.J., and Garcia, M.O. (2005), Petrologic Consequences of the Magmatic Death of a Continental Arc: Vanda Dike Swarm, Dry Valleys, Antarctica, Eos Trans. AGU, 86 (52), Fall Meet. Suppl., Abstract V23A-0681, San Francisco, CA.

Geist, D.J., Boudreau, A., Garcia, M.O., Harpp, K., Mathez, E., and Marsh, B., (2005), Origin of Mafic Pegmatoids in the Dais Intrusion, Wright Valley, Antarctica, Eos Trans. AGU, 86 (52), Fall Meet. Suppl., Abstract V14C-07, San Francisco, CA (invited)

Harpp, K.S., Geist, D.J., *Koleszar, A.M., *Rollins, N.A., and *Christensen, B. (2004), The Evolution of Floreana Island, Galapagos Archipelago I: Eruptive History and Geochemistry, IAVCEI Meeting, Pucon, Chile.

Geist, D.J., Harpp, K.S., Lyons, J., and Diefenbach, B. (2004), The Evolution of Floreana Island, Galapagos Archipelago II: Evidence from Mafic and Ultramafic Xenoliths, IAVCEI Meeting, Pucon, Chile.

Harpp, K.S. and Geist, D.J. (2004), Origins of Volcanism in the Galapagos Archipelago: Alternative Mechanisms for Volcanic Activity in Plume-Ridge Systems, EOS Trans. AGU, 85 (28), West. Pac. Geophys. Meet. Suppl., Abstract V43B-04, Honolulu, HI (Invited talk).

Geist, D.J., Lyons, J., and Harpp, K.S. (2004), Construction of the Galapagos Platform by Magmatic Overplating, EOS Trans. AGU, 85 (28), West. Pac. Geophys. Meet. Suppl., Abstract V41B-65, Honolulu, HI.

*Lambert, M.K., Harpp, K.S., Geist, D.J., Fornari, D.J., Kurz, M.D., *Koleszar, A.M., and *Rollins, N.A. (2004), Examination of the Constructional Processes of Submarine Cerro Azul and the Galapagos Platform, Eos Trans. AGU, 85 (17), Jt. Assem. Suppl., Abstract V43C-04.

*Barr, J.A., Harpp, K.S., and Geist, D.L. (2004), Plagioclase-Ultraphyric Basalts of the Northern Galapagos and Plume-Ridge Interaction, Eos Trans. AGU, 85 (17), Jt. Assem. Suppl., Abstract V43C-05.

*Koleszar, A.M., *Rollins, N.A., Harpp, K.S., and Geist, D.J. (2004), The Evolution of Floreana Island, Galapagos: Mantle Metasomatism as a Control of Structural and Geochemical Variations, Eos Trans. AGU, 85 (17), Jt. Assem. Suppl., Abstract V43C-06.

*Rollins, N., Harpp, K.S., Geist, D.J., and *Koleszar, A.M. (2004), Compositional Variations on the Timescales of Single Eruptions in Lavas from Floreana Island, Galapagos, Eos Trans. AGU, 85 (17), Jt. Assem. Suppl., Abstract V43C-07.

Lyons, J.J., Geist, D.J., and Harpp, K.S. (2004), Petrogenesis of Ultramafic Xenoliths from Floreana Island, Galapagos Archipelago, Ecuador, Eos Trans. AGU, 85 (17), Jt. Assem. Suppl., Abstract V43C-08.

*Karmosky, C.C. and Harpp, K.S. (2004), Onondaga Lake: A Forsaken Superfund Site, or a Sampling Playground for Environmental Geochemistry Classes?, Eos Trans. AGU, 85 (17), Jt. Assem. Suppl., Abstract ED31A-05.

Harpp, K.S., *Wanless, V.D., *Otto, R.H., and Hoernle, K. (2003), Magmatic Consequences of Failed Rift Zones: Examples from the Eastern Pacific,” Eos Trans. AGU, 84 (47), Fall Meet. Suppl., Abstract V12G-05, San Francisco, CA.

Harpp, K.S. (2003), “Petrology in action: Teaching Volcanology in the Undergraduate Curriculum,” Eos Trans. AGU, 84 (47), Fall Meet. Suppl., Abstract ED51A-06, San Francisco, CA.

Geist, D.J., Naumann, T., Standish, J., Harpp, K.S., Kurz, M., and Fornari, D.J. (2003), “Diffuse Rift Zones: Subaerial and Submarine Satellite Vents at Wolf Volcano, Galapagos,” Eos Trans. AGU, 84 (47), Fall Meet. Suppl., Abstract V12G-04, San Francisco, CA.

Harpp, K.S. and Geist, D.J. (2003), “Alternative mechanisms for volcanic activity in hotspot-ridge systems: The Northern Galápagos Province,” Plume IV GSA Penrose Conference, Hveragerdi, Iceland.

Geist, D.J. and Harpp, K.S. (2003), “Perturbations to the Galápagos Hotspot due to Interaction with the Galápagos Spreading Center,” Plume IV GSA Penrose Conference, Hveragerdi, Iceland.

Geist, D.J., Kurz, M., Fornari, D., Harpp, K.S., Saal, A. (2003), “The Leading Edge of the Galápagos Hotspot: Submarine Fernandina,” Annual Meeting of the Geological Association of Canada (GAC-MAC), Vancouver, British Columbia.

Harpp, K.S. and Geist, D.J. (2002), “The Role of Plume-Ridge Interaction in Magma Genesis I: The Northern Galápagos,” Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Blair†, S.W., Reed†, L.A., Harpp, K.S., and Koleszar†, A. (2002), “The Role of Plume-Ridge Interaction in Magma Genesis II: Wolf Island,” Galápagos, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Reed†, L.A., Blair†, S.W., Harpp, K.S., and Koleszar†, A. (2002), “The Role of Plume-Ridge Interaction in Magma Genesis III: Darwin Island,” Galápagos, Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Teasdale, R., Harpp, K.S., Barr†, J., and Fink, J. (2002), “Emplacement of Megacrystic Basalt Flows in the Northern Galápagos Archipelago: Rheologic Parameters and Analog Flow,” Eos Trans. AGU, Fall Meet. Suppl., San Francisco, CA.

Harpp, K.S. (2002), “The Use of Threaded Discussions in the Undergraduate Curriculum,” Conference on Blackboard technology software, St. Lawrence University, Potsdam, NY.

Kurz, M.D., Fornari, D.J., Geist, D.J., Johnson, P.D., Curtice, J.M., Lott, D.E., Harpp, K.S., Saal, A.E., Peckman, U.G. (2001), The leading edge of the Galapagos hotspot: Geochemistry and geochronology of submarine glasses coupled to new sidescan sonar imagery, Eos Trans. AGU, 82, abstract number T42b-0938.

Harpp, K.S., Wanless, V., and Hoernle, K. (2001), The Cocos and Carnegie Ridges: A record of long-term Galapagos plume-ridge interaction, Eos Trans. AGU, 82, Abstract T42B-0927.

Warner, Nathaniel, Levy, Jonathan, Harpp, Karen, Farruggia, Frank (2001), GSA Annual Meeting, Boston, MA, November, GSA Abstracts with Programs: “Groundwater quality in Nepal’s Kathmandu Valley: An assessment of controlling site characteristics”.

Harpp, Karen S. and White, William M. (2001), Geological Association of Canada (GACMAC) Annual Meeting, St. John’s, Newfoundland, Canada, May 27-30, 2001: “Chemical zonation within the inner rift valley floor of the FAMOUS area, Mid-Atlantic Ridge” (winner of second place in the Remick Poster Competition).

Lambert#, Jennifer, Raynes, Todd, and Harpp, Karen (2001), Northeast GSA Meeting, Burlington, VT, March: “Lead contamination in soil near residences in upstate New York.”

Harpp, Karen S., Sweeney†, William, Otto†, Robert H., Wanless†, Virginia (2000), GSA Annual Meeting, Reno, NV, November 9-18, GSA Abstracts with Programs Vol. 32, No. 7: “Innovative Approaches to Teaching Introductory Volcanology.”

Pistiner†, Janna S., Harpp, Karen S., Wirth, Karl R., Thole, Jeff, and Mayhew†, Lisa (2000), GSA Annual Meeting, Reno, NV, November 9-18, GSA Abstracts with Programs Vol. 32, No. 7: “Petrographic insight into plume-ridge interactions: Genovesa’s fascinating phenocrysts.”

Harpp, Karen S., Wirth, Karl R., Pistiner†, Janna S., Korich†, Daniel J., and Mayhew†, Lisa (2000), GSA Annual Meeting, Reno, NV, November 9-18, GSA Abstracts with Programs Vol. 32, No. 7: “Plume-ridge interaction in the Galapagos: An example of hotspot-induced, near-ridge volcanism at Genovesa Island.”

Geist, Dennis J., Naumann, T., Standish, J., Kurz, M., and Harpp, K. (2000) IAVCEI General Meeting, Bali, Indonesia, July 2000: “Volcan Wolf’s (Galapagos) caldera and magma chamber.”

Harpp, Karen S., Wirth, Karl R., Korich†, Daniel J., Mayhew†, Lisa, Pistiner†, Janna S. (2000), RIDGE-sponsored Plume-Ridge Interaction Workshop, Reykjavik, Iceland, August 2000: “Plume-Ridge Interaction in the Galapagos Islands: A Geochemical Investigation of Genovesa Island.”

Harpp, Karen S., Wirth, Karl R., Korich†, Daniel J., Mayhew†, Lisa, Pistiner†, Janna S. (2000), RIDGE-sponsored Plume-Ridge Interaction Meeting, Portland, Oregon, June 2000: “Plume-Ridge Interaction in the Galapagos Islands: A Geochemical Investigation of Genovesa Island.”

Harpp, Karen S., Wirth, Karl R., Korich†, Daniel J., Mayhew†, Lisa, Pistiner†, Janna S. (2000), IAVCEI General Meeting, Bali, Indonesia, July 2000: “Genovesa Island, Galapagos: An Exposed Near-Ridge Seamount.”

Clechenko, Cory C., Orrell, Sue E., and Harpp, Karen (1999), GSA Annual Meeting, Denver, CO, October 24-28, GSA Abstracts with Programs: “Trace and Rare Earth Element Compositions of K-Feldspars from Leucosomes, Host Gneiss, and Pegmatites in Metapelitic Gneisses, Southeasternmost Adirondacks, NY.”

Harpp, Karen S. and Harpp, David N. (1999), GSA Annual Meeting, Denver, CO, October 24-28, GSA Abstracts with Programs: “Visualizing Natural Phenomena: The Use of Traditional Chemistry Demonstrations as Learning Tools in the Introductory Geology Curriculum.”

Bohrson, Wendy A., Geist, Dennis J., and Harpp, Karen S. (1998), GSA Penrose Conference, Evolution of Ocean Island Volcanoes, Galapagos Islands, June 4-12: “The evolution of ocean island volcanoes: An overview.”

Geist, Dennis and Harpp, Karen (1998), GSA Penrose Conference, Evolution of Ocean Island Volcanoes, Galapagos Islands, June 4-12: “The geologic, petrologic, and geochemical evolution of the Galapagos Islands."

Standish, J., Geist, D., Harpp, K., Kurz, M. (1998), GSA Penrose Conference, Evolution of Ocean Island Volcanoes, Galapagos Islands, June 4-12: "The emergence of a Galapagos shield volcano: Roca Redonda Volcano."

White, W.M., Geist, D., Harpp, K., Blichert-Toft, J., and Albarede, F. (1998), GSA Penrose Conference, Evolution of Ocean Island Volcanoes, Galapagos Islands, June 4-12: "Temporal and spatial variations in chemistry and petrology of lavas from Volcan Ecuador, Isla Isabela."

White, W.M., Blichert-Toft, J., Albarede, F., Harpp, K.S., and Geist, D. (1997) EOS Transactions, American Geophysical Union Fall Meeting: "Geochemical evolution of Volcan Ecuador, Galapagos Islands."

Geist, D., White, W.M., Harpp, K.S., Albarede, F., and Reynolds, R. (1997) EOS Transactions, American Geophysical Union Fall Meeting: "Volcanic development and petrologic evolution of a collapsed Galapagos shield: Volcan Ecuador."

Strickland*, Zeta A. and Harpp, Karen S. (1997) ACS, American Chemical Society National Meeting (April): "A unique chemical outreach program."

Johnson*, Sarah C. and Harpp, Karen S. (1997) ACS, American Chemical Society National Meeting (April): "Natural and artificial fats: A module for use throughout the chemistry curriculum."

Lisensky, George S. and Harpp, Karen S. (1997) ACS, American Chemical Society National Meeting (April): "What happens to acid rain? An active-learning topical module for analytical chemistry."

Feighner, Mark and Harpp, Karen S. (1996) EOS Transactions, American Geophysical Union, v. 77, p. 734: "A fault model for the formation of the Wolf-Darwin Lineament, Galapagos."

Harpp, Karen S. and White, William M. (1995) EOS Transactions, American Geophysical Union, v. 76, no. 46, p. 694: "The East Pacific Rise magma chamber (9°-10°N): Isotopic and trace element constraints."

White, William M. and Harpp, Karen S. (1995). Terra Abstracts, v. 7, no. 1, p. 157: “The Galapagos mantle plume: Geochemical perspectives on plume-asthenosphere interaction.”

Harpp, Karen S. and White, William M. (1994) EOS Transactions, American Geophysical Union, v. 75, no.44, p.727: “The Galapagos hotspot: Mixing and melting in the mantle.”

White, William M., Bird, John M., Harpp, Karen S., Duncan, Robert A., Brousse, R. and Gisbert, T. (1993) International Workshop on Intraplate Volcanism: The Polynesian Plume Province, p.30: “Volcanic evolution of Tahaa: Does erosion cause post-erosional volcanism?"

Graham, David W., Christie, David M., Harpp, Karen S. and Lupton, J.E. (1993) nternational Workshop on Intraplate Volcanism: The Polynesian Plume Province, p.30: “Mantle plume helium in submarine basalts from the Galapagos Platform."

White, William M., Harpp, Karen S. and Duncan, Robert A. (1992) EOS Transactions, American Geophysical Union, v. 73, no.43, p.583: “Plume-ridge interaction in the Galapagos I: Overview” (Invited) .

Harpp, Karen S. and White, William M. (1992) EOS Transactions, American Geophysical Union, v. 73, no.43, p.583: “Plume-ridge interaction in the Galapagos II: Thermal and partial melting effects” (Invited).

Castillo, Pat, White, William M., Harpp, Karen S., Batiza, Rodey, and Niu, Yao-Ling (1991) EOS Transactions, American Geophysical Union, v. 72, no.44, p.525: “Petrology and Sr, Nd and Pb isotope geochemistry of MORB from the 14° to 15° N segment of the EPR.”

Harpp, Karen S., White, William M., Batiza, Rodey, and Castillo, Pat (1991) EOS Transactions, American Geophysical Union, v. 72, no.44, p.496: “Isotopic constraints on the East Pacific Rise magma chamber at 9°30’N."

Harpp, Karen S. and White, William M. (1990) EOS Transactions, American Geophysical Union, v. 71, no. 43, p.1695: "Geochemistry of Galapagos Seamounts."

Harpp, Karen S., White, William M. and Duncan, R.A. (1990) Geological Society of Australia Abstracts: Seventh International Conference on Geochronology, Cosmochronology and Isotope Geology, no. 27, p.44: "Geochemistry of the Wolf-Darwin Lineament and ridge-plume interaction in the Galapagos."

Harpp, Karen S. and White, William M. (1990) EOS Transactions, American Geophysical Union, v. 71, no. 17 p.658: "Isotopic study of contrasting magmatic systems: The EPR at 9°-10°N and the MAR in the FAMOUS area."

White, W.M., Harpp, K., Levy, L. and Cheatham, M.M. (1989) EOS Transactions, American Geophysical Union, v. 70, no. 43, p.1385: "Hawaiian style volcanic evolution on Tahaa, Society Islands."

Harpp, Karen S., Housecroft*, Catherine E. and Shongwe, Musa S. (1987) 194th American Chemical Society National Meeting,New Orleans: "Gold(I) phosphine derivatives of Fe4(CO)12BH3 and Fe3(CO)9BH4Me: Routes to encapsulated boron."