KARL R. WIRTH

Geology Department

Macalester College voice: 651-***-****

**** ***** ****** ***: 651-***-****

Saint Paul, Minnesota 55105 e-mail: abqfcs@r.postjobfree.com

Education

Doctor of Philosophy : Cornell University, NY (1991); Igneous Petrology, Isotope Geochemistry, Tectonics, and

Remote Sensing. Thesis: "Processes of Lithosphere Evolution: Geochemistry and

Tectonics of Mafic Rocks in the Brooks Range and Yukon-Tanana Region, Alaska"

Master of Science: Cornell University, NY (1986); Precambrian Geology and Petrology. Thesis: "Geology and

Geochemistry of the Gr o Par Group, Serra dos Caraj s, Par, Brazil"

Bachelor of Science: Beloit College, WI (1982); Geology. Thesis: Geology of the Friday Bay Quadrangle, MN

Experience

Associate Professor Macalester College, Minnesota 9/96 - present

Adjunct Professor Beloit College, Wisconsin Summer 2002

Visiting Research Associate University of Dar es Salaam, Tanzania 7/00-12/00; 7/01-12/01

Director of Tanzania Program Associated Colleges of Midwest 7/00-12/00; 7/01-12/01

Visiting Associate Professor Beloit College, Wisconsin Summers '98, '99

Visiting Assistant Professor Stanford University 7/94 - 9/94

Visiting Scientist Cornell University 3/94 - 9/94

Assistant Professor Macalester College, Minnesota 11/90 - 9/96

Instructor Beloit College, Wisconsin Summers '89, '91, '95, '97

Teaching & Research Assistant Cornell University, New York 8/83 - 11/90

Geologic Field Assistant U.S. Geological Survey, Colorado 8/82 - 8/83

AMAX, Colorado 8/82 - 12/82

Wallaby Enterprises, Arizona 8/79 - 8/80

Professional Affiliations

Geological Society of America National Association of Geology Teachers

American Geophysical Union American Association for Advancement of Science

Training and Certifications

Open Water SCUBA (1984) Medic First Aid (2001) Emergency First Responder (2003)

Advanced Open Water (1989) Enriched Air (2001) Assistant Instructor (2003)

Rescue Diver (2001) Divemaster (PADI# 187604; 2003) Open Water Scuba Instructor (2003)

Emerg. First Responder Instr. (2004)

Awards, Fellowships, and Grants

Bausch and Lomb Science Award (1977) Pew Summer Faculty Research Award (1993, 1994)

Pellet Scholarship (1981) Petroleum Research Fund - Type B Grant (1994)

AMAX Field Fellowship (1981) NSF Research Opportunity Award (1994)

Haven Fellow Award in Geology (1981) NSF Instr. and Lab. Improvement Grant (1995, 1996)

Monta E. Wing Scholarship (1982) Beltmann Physical Sciences Award ( 95, 96, 97, 01)

Sigma Xi Grant-in-Aid of Research (1987) NSF Academic Research Infrastructure Grant (1996)

AAPG Grant-in-Aid of Research (1987) National Science Foundation Grant (1999)

NASA Graduate Researcher Award (1987, 1988, 1989) Keck Student-Faculty Collaboration Award (2001)

ACM Faculty Travel Grant (1991) Keck Geology Consortium Grant (2002, 2005)

Pew Faculty Development Awards (1991, 92, 93, 2002) Wallace Research and Travel Grant (2004, 2005)

Wallace Research and Travel Grant (1991, 1992, 1994) NSF Major Research Infrastructure Grant (2005)

Geological Society of America Travel Grant (1991, 1996) Global Partners East Africa Travel Grant (2005)

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Publications

(Undergraduate student co-authors are underlined)

Anderson, P. and Wirth, K.R., 1981, Uranium potential in Precambrian conglomerates of the

central Arizona Arch; Final Report: U.S. Department of Energy Report No. GJBX-2(81),

National Uranium Resource Evaluation Program, Bendix Field Engineering, Grand

Junction, Colorado, 226 p.

Wirth, K.R., Gibbs, A.K., and Olszewski, W.J., Jr., 1986, U-Pb ages of zircons from the Gr o

Par Group and Serra dos Caraj s Granite, Par, Brazil: Revista Brasileira de Geoci ncias,

v. 16, n. 2, p. 195-200.

Gibbs, A.K., Wirth, K.R., Hirata, W.K., and Olszewski, W.J., Jr., 1986, Age and composition of

the Gr o Par Group volcanics, Serra dos Caraj s: Revista Brasileira de Geoci ncias, v. 16,

n. 2, p. 201-211.

Olszewski, W.J., Jr., Wirth, K.R., Gibbs, A.K., and Gaudette, H.E., 1989, The age, origin, and

tectonic setting of the Gr o Par Group and associated rocks, Serra dos Caraj s, Brazil:

Archean continental volcanism and rifting: Precambrian Research, v. 42, p. 229-254.

Harding, D.J., Wirth, K.R., and Bird, J.M., 1989, Spectral Mapping of Alaskan Ophiolites using

Landsat Thematic Mapper Data: Remote Sensing of the Environment, v. 28, p. 219-232.

Gibbs, A.K. and Wirth, K.R., 1990, Geologic setting of the Serra dos Caraj s iron deposits: in

Chauvel, J.-J. et al., editorial board, Ancient Banded Iron Formations (Regional

Presentations), Theophrastus Publications, S.A., Athens, Greece, p. 83-102.

Wirth, K.R., Olivera, E.P., Silva Sa, H., and Tarney, J., 1990, Early Precambrian basic rocks of

South America: in Hall, R.P. and Hughes, D.J., editors, Early Precambrian Basic

Magmatism, Blackie and Sons Ltd., Glasgow, p. 379-404.

Wirth, K.R., 1991, Processes of lithosphere evolution: Geochemistry and tectonics of mafic

rocks in the Brooks Range and Yukon-Tanana region, Alaska: Ph.D. Dissertation, Cornell

University, New York; University Microfilms, University of Michigan, 367 p.

Wirth, K.R. and Bird, J.M., 1992, Chronology of ophiolite crystallization, detachment, and

emplacement: Evidence from the Brooks Range, Alaska: Geology, v. 20, p. 75 - 78.

Wirth, K.R., Bird, J.M., Blythe, A.E., Harding, D.J., and Heizler, M.T., 1993, Age and tectonic

evolution of western Brooks Range ophiolites, Alaska: Results from 40Ar/39Ar

thermochronometry: Tectonics, v. 12, no. 2, p. 410-432.

Wirth, K.R., Bird, J.M., and Wessels, J., 1994, The diversity of accreted oceanic lithosphere in

the Brooks Range, Alaska: in Ishiwatari, A., Malpas, J., and Ishizuka, H., editors, Circum-

Pacific Ophiolites: Proceedings of the 29th Ophiolite Symposium, VSP International

Science Publishers, p. 89-108.

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Wirth, K.R. and Vervoort, J.D., 1995, Nd isotopic constraints on mantle and crustal contributions

to Early Proterozoic dykes of the southern Superior Province: in Baer, G. and Heimann, A.

(editors), Physics and Chemistry of Dykes, Balkema, Rotterdam, p. 237-249.

Schmitz, M.D., Wirth, K.R., and Craddock, J.C., 1995, Major and trace element geochemistry of

Early Proterozoic mafic dykes of northern Minnesota and southwestern Ontario: in Baer,

G. and Heimann, A. (editors), Physics and Chemistry of Dykes, Balkema, Rotterdam, p.

219-233.

Wirth, K.R., Vervoort, J.D., Naiman, Z.J., 1997, Petrography and geochemistry of southernmost

volcanic rocks exposed in the Midcontinent rift: Canadian Journal of Earth Sciences, v. 34,

no. 4, p. 536-548.

Wirth, K.R., Cordua, W.S., Kean, W.F., Middleton, M.M., Naiman, Z.J., 1998, The geology of

the southeastern portion of the Midcontinent Rift system, Eastern Minnesota and western

Wisconsin: 44th Annual Meeting of the Institute on Lake Superior Geology, Minneapolis,

Minnesota, Field Trip Guidebook, v. 44, p. 33-75.

Cannon, W.F., Daniels, D.M., Nicholson, S.W., Phillips, J., Woodruff, L.G., Chandler, V.W.,

Morey, G.B., Boerboom, Wirth, K.R., and Mudrey, M.G., Jr., 2001, New map reveals

origin and geology of North American Mid-Continent Rift: Eos (Transactions of the

American Geophysical Union), v. 82, no. 8, p. 97-101.

Harpp, Karen S., Wirth, Karl R, Korich, Daniel J., 2002, Northern Gal pagos province: hotspot-

induced, near-ridge volcanism at Genovesa Island: Geology, v. 30, no. 5, p. 399-402.

Wirth, K.R., Grandy, J., Kelley, K., and Sadofsky, S., 2002, Evolution of crust and mantle

beneath the Bering Sea region: Evidence from xenoliths and late Cenozoic basalts: in

Miller, E.L., Grantz, A., and Klemperer, S.L., editors, Tectonic Evolution of the Bering

Shelf-Chukchi Sea-Artic Margin and Adjacent Landmasses: Boulder, CO, Geological

Society of America Special Paper 360, p. 167-193.

Miller, E.L., Ireland, T., Klemperer, S., Wirth, K.R., Akinin, V.V., and Brocher, T.M., 2002,

Constraints on the age of formation of seismically reflective middle and lower crust

beneath the Bering Shelf: SHRIMP zircon dating of xenoliths from Saint Lawrence Island:

in Miller, E.L., Grantz, A., and Klemperer, S.L., editors, Tectonic Evolution of the Bering

Shelf-Chukchi Sea-Artic Margin and Adjacent Landmasses: Boulder, CO, Geological

Society of America Special Paper 360, p. 195-208.

Harris, R.A., Moore, T.E., Wirth, K.R., Mull, C.G., McBride, J., 2003, Rooted Brooks Range

Ophiolite: Implications for Cordilleran terranes: Comment and Reply: Geology, v. 31, no.

1, p. 91-92.

Boerboom, Terry, Holm, Daniel, Wirth, Karl, Woodruff, Laurel, and Cannon, William, 2005,

The western margin of the Keweenawan Midcontinent Rift System: Geologic highlights of

Archean, Paleoproterozoic, Keweenawan, and Paleozoic bedrock in eastern Minnesota and

northwestern Wisconsin: in Robinson, L. et al., Field trip guidebook for selected geology in

Minnesota and Wisconsin: Minnesota Geological Survey Guidebook 21, p. 181-207.

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Wirth, K.R., and Perkins, D., 2005, Knowledge surveys: An indispensable course design and

assessment tool: paper submitted to the Innovations in the Scholarship of Teaching and

Learning at the Liberal Arts College, St. Olaf College, Northfield, MN, 01-03 April 2005,

Conference Proceedings.

Schmitz, M.D., Bowring, S.A., Southwick, D.L., Boerboom, T.J., and Wirth, K.R., 2006, High-

precision U-Pb geochronology in the Minnesota River Valley subprovince and its bearing

on the Neoarchean to Paleoproterozoic evolution of the southern Superior Province:

Geological Society of America Bulletin, v., 118, no. 1/2, p. 82-93.

Jeff D. Vervoort, Karl Wirth, Bryan Kennedy, Travis Sandland, and Karen S. Harpp, in press,

The Magmatic Evolution of the Midcontinent Rift: New Geochronologic and Geochemical

Evidence From Felsic Magmatism: Precambrian Research, 54 p.

Wirth, K.R., in press, Teaching for Deeper Understanding and Life-Long Learning: Elements, 19

p.

Foreman, B.Z., Rogers, R.R., Deino, A.L., Wirth, K.R., and Thole, J.T., in review, Geochemical

discrimination and new 40Ar/39Ar age of bentonites in the Two Medicine Formation

(Upper Cretaceous), northwestern Montana, USA: to be submitted to Canadian Journal of

Earth Sciences.

Wirth, K.R. and Perkins, D., in prep, Knowledge Surveys: An Indispensable Course Design and

Assessment Tool: to be submitted to Journal of Geological Education.

Abstracts

(Undergraduate student co-authors are underlined)

Wirth, K.R., Crouse, G., and Woodard, H.H., 1982, Geology of the Friday Bay quadrangle,

Minnesota: Institute on Lake Superior Geology, 28th Annual Meeting, Proceedings and

Abstracts, International Falls, Minn., p. 52.

Gibbs, A.K. and Wirth, K.R., 1985, Lithostratigraphy of the Gr o Par Group, Serra dos Caraj s,

Brazil: 98th Annual Meeting of the Geological Society of America, Abstracts with

Programs, Orlando, Florida, v. 17, no. 7, p. 591.

Olszewski, W.J., Jr., Gibbs, A.K., and Wirth, K.R., 1985, Rb-Sr and Sm-Nd whole rock analyses

of basalts of the Gr o Par Group, Serra dos Caraj s, Brazil: 98th Annual Meeting of the

Geological Society of America, Abstracts with Programs, Orlando, Florida, v. 17, no. 7, p.

682.

Bird, J.M., Wirth, K.R., Harding, D.J., and Shelton, D.H., 1985, Brooks Range ophiolites

reconstructed: EOS, Transactions, American Geophysical Union, San Francisco,

California, v. 66, no. 46, p. 1129.

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Harding, D.J., Wirth, K.R., Bird, J.M., and Shelton, D.H., 1985, Ophiolite emplacement, western

Brooks Range, northern Alaska: EOS, Transactions, American Geophysical Union, San

Francisco, California, v. 66, no. 46, p. 1129.

Wirth, K.R., Gibbs, A.K., and Olszewski, W.J., Jr., 1985, Archean continental volcanism in the

Amazonian Craton: EOS, Transactions, American Geophysical Union, San Francisco,

California, v. 66, no. 46, p. 1119.

Wirth, K.R., Harding, D.J., Blythe, A.E., and Bird, J.M., 1986, Brooks Range ophiolite

crystallization and emplacement ages from 40Ar/39Ar data: 99th Annual Meeting of the

Geological Society of America, Abstracts with Programs, San Antonio, Texas, v. 18, no. 6,

p. 792.

Harding, D.J., Wirth, K.R., Bird, J.M., and Blythe, A.E., 1986, Correlation of Angayucham

Range and Copter Igneous Sequence basalts in the Brooks Range, Alaska, from Thematic

Mapper data: 99th Annual Meeting of the Geological Society of America, Abstracts with

Programs, San Antonio, Texas, v. 18, no. 6, p. 628.

Gibbs, A.K. and Wirth, K.R., 1986, Origin and evolution of the Amazonian Craton: Workshop

on Early Crustal Genesis: The World's Oldest Rocks, Godthab, Greenland, June 21-30,

1985, Lunar and Planetary Institute Technical Report 86-04, Houston, Texas, p. 46-50.

Olszewski, W.J., Jr., Gibbs, A.K., and Wirth, K.R., 1986, Geochemical and isotopic constraints

on the tectonic setting of the Serra dos Caraj s belt, eastern Par, Brazil: Workshop on

Early Crustal Genesis: The Tectonic Evolution of Greenstone Belts, Houston, Texas,

January 16-18, 1986, Lunar and Planetary Institute Technical Report 86-10, p. 162-164.

Harding, D.J., Wirth, K.R., and Bird, J.M., 1987, Landsat TM studies, Brooks Range, Alaska:

Cordilleran Section Meeting of the Geological Society of America, Abstracts with

Programs, Hilo, Hawaii, v. 19, n. 6, p. 386.

Wirth, K.R., Harding, D.J., and Bird, J.M., 1987, Basalt geochemistry, Brooks Range, Alaska:

Cordilleran Section Meeting of the Geological Society of America, Abstracts with

Programs, Hilo, Hawaii, v. 19, n. 6, p. 464.

Olszewski, W.J., Jr., Wirth, K.R., Gibbs, A.K., and Gaudette, H.E., 1987, The age, origin, and

tectonics of the Gr o Par Group and associated rocks, Serra dos Caraj s, Brazil: Archean

continental volcanism and rifting: Final Meeting of the Precambrian Evolution of the

Amazonian Region (IUGS Project 204), Proceedings, Serra dos Caraj s, Par, Brazil, Sept.

9-14, 1987, p. 117-119.

Wirth, K. R. and Bird, J.M., 1988, Hot-spot volcanism in northeastern Alaska?: Trace element

and isotope evidence from Yukon Flats basalts: EOS, Transactions, American Geophysical

Union, San Francisco, California, v. 69, no. 44, p. 1457.

Wirth, K. R., Bird, J.M., and Cheatham, M.M., 1989, Geochemistry of western Brooks Range

basalt, Alaska: Cordilleran/Rocky Mountain Section Meeting of the Geological Society of

America, Abstracts with Programs, Spokane, Washington, v. 21, no. 5, p. 160-161.

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Blythe, A.E., Wirth, K.R., and Bird, J.M., 1990, Fission-track and 40Ar/39Ar ages of

metamorphism and uplift, Brooks Range, northern Alaska: Annual Meeting of the

Geological Association of Canada and the Mineralogical Association of Canada,

Vancouver, Canada, v. 15, p. 12.

Wirth, K.R., and Bird, J.M., 1990, Trace element and isotope compositions of Late Cenozoic

alkaline basalts, northeastern Alaska: Annual Meeting of the Geological Association of

Canada and the Mineralogical Association of Canada, Vancouver, Proc., v. 15, p. 142.

Plumley, P.W., Wirth, K.R., Bird, J.M., and Harding, D.J., 1990, Paleomagnetic results from

sheeted dike sequence, western Brooks Range Ophiolite: EOS, Transactions, American

Geophysical Union, San Francisco, California, v. 71, no. 43, p. 1295.

Wirth, K. R. and Karig, D.E., 1991, Geochemistry of volcanic rocks from an intra-arc basin:

Marinduque Basin, Philippines: EOS, Transactions, American Geophysical Union, 1991

Fall Meeting, San Francisco, California, v. 72, no. 44, p. 248.

Wirth, K.R. and Bird, J.M., 1992, The diversity of accreted oceanic lithosphere in the Brooks

Range, Alaska: 29th International Geological Congress, Kyoto, Japan, v. 1, p. 133.

Moshoian, A.D., Wirth, K.R., and Craddock, J.P., 1992, The Kenora-Kabetogama dike swarm:

results of trace element studies: Proceedings of the 38th Annual Meeting of the Institute on

Lake Superior Geology, Hurley, Wisconsin, v. 38, p. 75 - 77.

Bartk, L. and Wirth, K.R., 1993, Petrography of basalts from a volcanic ridge in the

Marinduque Basin, Philippines: 1993 Annual Meeting of the North-Central Section,

Geological Society of America, Rolla, MO, v. 25, no. 3, p. 5.

Wessels, J. and Wirth, K.R., 1993, Petrography of plutonic rocks in Brooks Range ophiolites:

Presented at: Annual Meeting of the North-Central Section, Geological Society of America,

Rolla, MO (Omitted from proceedings volume due to editorial errors).

Schmitz, M.D., Wirth, K.R., Craddock, J.C., and Moshoian, A.D., 1993, Petrogenesis of early

Proterozoic Kenora-Kabetogama dike swarm: Annual Meeting of the Geological Society of

America, Boston, MA, Abstracts with Programs, v. 25, no. 6, p. A-97-98.

Brenner, J.S., Hornbach, D., and Wirth, K., 1993, A study of lattice parameters in freshwater

bivalve mollusks: Relation to environmental and genetic variation: Pew Undergraduate

Research Symposium, Chicago, IL.

Schmitz, M.D. and Wirth, K.R., 1993, Petrogenesis of the Early Proterozoic Kenora-

Kabetogema dike swarm, northern Minnesota and southern Ontario: Pew Undergraduate

Research Symposium, Chicago, IL.

Kropf, E.P., Craddock, J.P., and Wirth, K.R., 1993, Calcite-bearing pseudotachylite in Archean

amphibolite grade rocks of the Minnesota River Valley Terrane: EOS, Transactions,

6

American Geophysical Union, 1993 Fall Meeting, San Francisco, California, v. 74, no. 43,

p. 577.

Wirth, K.R., 1993, Evidence of magma mixing in a Philippine intra-arc basin from

disequilibrium plagioclase: EOS, Transactions, American Geophysical Union, 1993 Fall

Meeting, San Francisco, California, v. 74, no. 43, p. 681-682.

Schmitz, M.D., Wirth, K.R., and Craddock, J.C., 1994, Origin of the Early Proterozoic Kenora-

Kabetogama Mafic Dike Swarm: 40th Annual Meeting of the Institute on Lake Superior

Geology, Houghton, MI, May 11-14, Part I - Program with Abstracts, v. 40, p. 62-63.

Kropf, E.P., Wirth, K.R., Craddock, J.C., 1994, New Archean-hosted pseudotachylite

occurrences, western Lake Superior region: 40th Annual Meeting of the Institute on Lake

Superior Geology, Houghton, MI, May 11-14, Part I - Program with Abstracts, v. 40, p. 25-

26.

Leslie, M., Wetzel, T., Wirth, K.R., and Craddock, J.C., 1994, Petrography and structure of the

Keweenaw Chengwatana volcanics near Dresser, Wisconsin: 40th Annual Meeting of the

Institute on Lake Superior Geology, Houghton, MI, May 11-14, Part I - Program with

Abstracts, v. 40, p. 35-36.

Schmitz, M.D., Wirth, K.R., and Craddock, J.C., 1994, Petrologic models for genesis of Kenora-

Kabetogama dike swarm: 27th Annual Meeting of the North-Central Section of the

Geological Society of America, April 28-29, Kalamazoo, MI, Abstracts with Programs, v.

26, no. 5, p. 60.

Sadofsky, S. and Wirth, K.R., 1994, Geology and Geochemistry of the Keweenawan

Chengwatana Volcanics, eastern Minnesota and western Wisconsin: Pew Undergraduate

Research Symposium, St. Louis, MO, Oct. 14-16, 1994.

Grischkowsky, B.A., Craddock, J.P., and Wirth, K.R., 1995, Progressive strain history from the

Seward Peninsula: evidence from twinned calcite preserved in Ordovician-Cretaceous

sediments: 91st Annual Meeting of the Cordilleran Section, Geological Society of

America, Fairbanks, Alaska, Abstracts with Programs, p. 22.

Sadofsky, S.J. and Wirth, K.R., 1995, Petrology of the Teller Volcanic Field, Alaska: 91st

Annual Meeting of the Cordilleran Section, Geological Society of America, Fairbanks,

Alaska, Abstracts with Programs, p. 75.

Beutel, E., Craddock, J., Dean, M., and Wirth, K.R., 1995, Structure and geochemistry of

Proterozoic mafic dykes in western Wisconsin, Superior Province, USA: Third

International Dyke Conference, Sept. 4-8, Jerusalem, Israel, Program and Abstracts, p. 12.

Schmitz, M.D., Wirth, K.R., and Craddock, J.P., 1995, Major and trace element geochemistry of

Early Proterozoic mafic dykes of northern Minnesota and southwestern Ontario: Third

International Dyke Conference, Sept. 4-8, Jerusalem, Israel, Program and Abstracts, p. 63.

7

Wirth, K.R., Vervoort, J.D., and Heaman, L.M., 1995, Nd isotopic constraints on mantle and

crustal contributions to 2.08 Ga diabase dykes of the western Superior Province: Third

International Dyke Conference, Sept. 4-8, Jerusalem, Israel, Program and Abstracts, p. 84.

Wirth, K.R., Grotta, S., Sadofsky, S., and Vervoort, J.D., 1995, Geochemistry of southernmost

Midcontinent Rift lavas in Minnesota and Wisconsin: International Field Conference and

Symposium on the Petrology and Metallogeny of Volcanic and Intrusive Rocks of the

Midcontinent Rift System: Aug. 19-Sept. 1, Duluth, Minnesota, Proceedings, p. 211-212.

Wirth, K.R., Ronnback, C.M., Grandy, J.S., and Sadofsky, S.J., 1995, Mafic Volcanism and

Xenoliths of the Northern Bering Sea Region: EOS (invited), Transactions, American

Geophysical Union, 1993 Fall Meeting, San Francisco, California, v. 76, no. 46, p. 589-

590.

Wirth, K.R. and Branlund, J.M., 1996, Magmatic evolution of an Intra-Arc Basin, Marinduque

Basin, Philippines: 30th International Geological Congress, Aug. 4-14, 1996, Beijing,

China, Abstracts, p. 229.

Simon, Justin I. and Wirth, Karl R., 1996, Dikes of the Minnesota River Valley: Petrography and

major element chemistry: 29th Annual Meeting of the North-Central Section of the

Geological Society of America, Ames, Iowa, Abstracts with Programs, v. 28, p. 65.

Branlund, Joy M. and Wirth, Karl R., 1996, Marinduque Basin, Philippines: Plagioclase zoning

and magma mixing: 29th Annual Meeting of the North-Central Section of the Geological

Society of America, Ames, Iowa, Abstracts with Programs, v. 28, p. 30.

Wirth, Karl R. and Branlund, Joy M., 1996, Marinduque Basin, Philippines: Whole-rock

geochemistry and source composition: 29th Annual Meeting of the North-Central Section

of the Geological Society of America, Ames, Iowa, Abstracts with Programs, v. 28, p. 71.

Naiman, Zachary, Wirth, Karl R., Morey, G.B., and Miller, James D., 1996, Metamorphism of

Chengwatana Volcanic Group near Taylors Falls and from Osseo drill core: 42nd Annual

Meeting of the Institute on Lake Superior Geology, Cable, WI, Proceedings, v. 42, p. 40-

41.

Wirth, Karl R., Naiman, Zachary, Vervoort, J.D., Miller, James D., and Morey, G.B., 1996,

Geochemistry of Chengwatana Volcanic Group near Taylors Falls and from Osseo drill

core: 42nd Annual Meeting of the Institute on Lake Superior Geology, Cable, WI,

Proceedings, v. 42, p. 66-67.

Naiman, Zachary J. and Wirth, Karl R., 1996, Geology and geochemistry of Midcontinent Rift

lavas (Chengwatana Volcanic Group) along the St. Croix River: St. Croix River Research

Rendezvous, St. Croix Watershed Research Station, Marine on St. Croix, MN, October 15,

1996.

Pawlisch, Melissa S., Craddock, John P., and Wirth, Karl R., 1996, Emplacement and flow

direction of Kenora-Kabetogama dike swarm from studies of magnetic susceptibility:

8

Annual Meeting of the Geological Society of America, Denver, CO, Abstracts with

Programs, v. 28, no. 7, p. 247.

Kelley, Katherine A. and Wirth, Karl R., 1997, Geothermometry studies of spinel lherzolite

xenoliths from Klikitarik Bay and St. Lawrence Island, Alaska: 30th Annual Meeting of the

North-Central Section of the Geological Society of America, Madison, Wisconsin,

Abstracts with Programs, v. 29, no. 4, p. 25.

Pawlisch, Melissa S., Craddock, John P., and Wirth, Karl R., 1997, Local and regional AMS

results for composite and non-composite dikes, Kenora-Kabetogama Dike Swarm: 30th

Annual Meeting of the North-Central Section of the Geological Society of America,

Madison, Wisconsin, Abstracts with Programs, v. 29, no. 4, p. 65

Naiman, Zachary J. and Wirth, Karl R., 1997, Geology and geochemistry of midcontinent rift

lavas (Chengwatana Volcanic Group) along the St. Croix River: 43rd Annual Meeting of

the Institute on Lake Superior Geology, Sudbury, Ontario, Proceedings, v. 43, p. 45-46.

Grandy, Jeffrey S. and Wirth, Karl R., 1997, Petrogenesis of the St. Michael Volcanic Field,

Norton Sound region, Alaska: Annual Meeting of the Geological Society of America, Salt

Lake City, UT, Abstracts with Programs, v. 29, no. 6, p. 392.

Abbott, Kathleen M., Thole, Jeffrey T., and Wirth, Karl R., 1998, Petrography and geochemistry

of Midcontinent rift rhyolite (Chengwatana Volcanics) near Clam Falls, Wisconsin: 44th

Annual Meeting of the Institute on Lake Superior Geology, Minneapolis, Minnesota,

Proceedings, v. 44, p. 41-42.

Naiman, Zachary J. and Wirth, Karl R., 1998, Composition and sources(s) of Midcontinent rift

lavas (Chengwatana Volcanics) near Clam Falls, Wisconsin: 44th Annual Meeting of the

Institute on Lake Superior Geology, Minneapolis, Minnesota, Proceedings, v. 44, p. 96-97.

Wirth, Karl R. and Gehrels, George, E., 1998, Precise U-Pb zircon ages of Midcontinent Rift

rhyolite (Chengwatana Volcanics), Clam Falls, WI: 44th Annual Meeting of the Institute

on Lake Superior Geology, Minneapolis, Minnesota, Proceedings, v. 44, p. 124-125.

Abbott, K.M., Thole, J.T., and Wirth, K.R., 1998, Petrography and geochemistry of

Midcontinent rift rhyolite (Chengwatana Volcanics) near Clam Falls, Wisconsin [abstract]:

Annual Meeting of the Geological Society of America, Toronto, Ontario, Abstracts with

Programs, v. 30, p. 376-377.

Page, F., Wirth, K.R., and Dobrovolskaya, T.I., 1998, Subduction-related mid-Jurassic

magmatism of the Crimean Mountains [abstract]: Annual Meeting of the Geological

Society of America, Toronto, Ontario, Abstracts with Programs, v. 30, p. 378.

Johnson, A.N., Wirth, K.R., Peck, W.H., and Valley, J.W., 1998, Oxygen isotopes and

geochemistry of anorthosite xenoliths, Keweenawan Beaver Bay Complex, northeastern

Minnesota [abstract]: Annual Meeting of the Geological Society of America, Toronto,

Ontario, Abstracts with Programs, v. 30, p. 377-378.

9

Miller, E.L., Ireland, T., Klemperer, S., Wirth, K.R., Akinin, V.V., 1998, SHRIMP zircon dating

of reflective crust and Moho beneath the Bering Shelf, Alaska and Russia: EOS,

Transactions, American Geophysical Union, 1998 Fall Meeting, San Francisco, California,

v. 79, p. 808.

Moore, T.E., Aleinikoff, J.N., and Wirth, K.R., 1998, Middle Jurassic U-Pb Ages for Brooks

Range Ophiolites, Alaska: EOS, Transactions, American Geophysical Union, 1998 Fall

Meeting, San Francisco, California, v. 79, p. 807.

Funk, A.E., Ricke, M., Wallin, L.B., Annexstad, J.O., and Wirth, K., 1999, Cosmic spherules in

glaciogenic sediments; An update: 62nd annual meeting of the Meteoritical Society,

Johannesburg, South Africa, July 11-16, 1999, Meteoritics & Planetary Science, v. 34, no.

4, Suppl., p.39.

Harris, E.C., and Wirth, K.R., 2000, Petrogenesis of granitic rocks of the Dunka River region,

eastern Mesabi Range, Minnesota: 46th Annual Meeting of the Institute on Lake Superior

Geology, Thunder Bay, Ontario, Proceedings, v. 46, p. 15-16.

Kennedy, B.C., Wirth, K.R., and Vervoort, J.D., 2000, Petrogenesis of the Midcontinent Rift

granophyric complexes of northern Minnesota: 46th Annual Meeting of the Institute on

Lake Superior Geology, Thunder Bay, Ontario, Proceedings, v. 46, p. 29-30.

Phillips, E.H., and Wirth, K.R., 2000, Petrogenesis of the enigmatic Aurora sill, Mesabi Range,

Minnesota: 46th Annual Meeting of the Institute on Lake Superior Geology, Thunder Bay,

Ontario, Proceedings, v. 46, p. 51-52.

Vervoort, J.D., Wirth, K.R., and Kennedy, B.C., 2000, Isotopic constraints on the origin of

granophyre complexes in the Midcontinent rift of northeastern Minnesota: 46th Annual

Meeting of the Institute on Lake Superior Geology, Thunder Bay, Ontario, Proceedings, v.

46, p. 67-68.

Kennedy, B.C., Sandland, T.O., Wirth, K.R., and Vervoort, J.D., 2000, Petrogenesis of

Midcontinent rift granophyres in northern Minnesota: geochemical evidence: Annual

Meeting of the Geological Society of America, Reno, Nevada, Abstracts with Programs, v.

32, no. 7, p. 398.

Vervoort, J.D., Kennedy, B.C., Sandland, T.O., Wirth, K.R., 2000, Isotopic constraints on the

origin of granitic rocks in the Midcontinent rift of northern Minnesota: Annual Meeting of

the Geological Society of America, Reno, Nevada, Abstracts with Programs, v. 32, no. 7, p.

399.

Phillips, E.H., and Wirth, K.R., 2000, Petrogenesis of the enigmatic Aurora sill, Mesabi Range,

Minnesota: Annual Meeting of the Geological Society of America, Reno, Nevada,

Abstracts with Programs, v. 32, no. 7, p. 150.

Pistner, J., Harpp, K., Wirth, K.R., and Thole, J., 2000, Composition and evolution of

megacrystic lavas on Genovesa Island, Galapagos: Annual Meeting of the Geological

Society of America, Reno, Nevada, Abstracts with Programs, v. 32, no. 7, p. 151.

10

Miller, J.H., Rogers, R.R., Wirth, K.R., and Dunn, R.K., 2000, Preliminary analyses of paleosols

in the Upper Cretaceous Maevarano Formation (Mahajanga Basin), Northwestern

Madagascar: paleoclimatic implication: Annual Meeting of the Geological Society of

America, Reno, Nevada, Abstracts with Programs, v. 32, no. 7, p. 305.

Harpp, K. S., Wirth, K.R., Pistiner, J.S., Korich, D.J., and Mayhew, L., 2000, Plume-ridge

interaction in the Galapagos: and example of hotspot-induced near-ridge volcanism at

Genovesa Island: Annual Meeting of the Geological Society of America, Reno, Nevada,

Abstracts with Programs, v. 32, no. 7, p. 323.

Harpp, K.S., Wirth, K.R., Korich, D.J., Mayhew, L., Pistiner, J.S., 2000, Plume-Ridge

interaction in the Galapagos Islands: A geochemical investigation of Genovesa Island:

RIDGE Workshop on Physical and Chemical Effects of Mantle Plume - Spreading Ridge

Interaction, Troutdale, Oregon, June, 2000, Abstracts, p. 36-38.

Harpp, K.S., Wirth, K.R., Korich, D.J., Mayhew, L., Pistiner, J.S., 2000, Genovesa Island,

Galapagos: An exposed near-ridge seamount: International Association of Volcanology and

Chemistry of the Earth's Interior (IAVCEI), Bali, Indonesia.

Harpp, K.S., Wirth, K.R., Korich, D.J., Mayhew, L., Pistiner, J.S., 2000, Plume-Ridge

interaction in the Galapagos Islands: A geochemical investigation of Genovesa Island:

RIDGE Program: Plume-Ridge Interaction Workshop, Reykjavik, Iceland, August, 2000.

Nicholson, S.W., Boerboom, T., Cannon, W.F., Wirth, K., 2001, Reinterpretation of the 1.1 Ga

Chengwatana volcanics in the St. Croix horst, Minnesota and Wisconsin: Annual Meeting

of the Geological Society of America - North Central Section, Bloomington-Normal, IL, v.

33, no.4, p.20.

Phillips, E., and Wirth, K.R., 2001, Nd and U-Pb Isotope Studies of the Syenitic Aurora Sill,

Mesabi Range, Minnesota: 47th Annual Meeting of the Institute on Lake Superior

Geology, Madison, Wisconsin, Proceedings, v 47, p. 80-81.

Sandland, T.O., Wirth, K.R., Gehrels, G.E., Vervoort, J.D., Kennedy, B.K., and Harpp, K.S.,

2001, Roles of fractional crystallization and assimilation in the production of Midcontinent

Rift granophyres: 47th Annual Meeting of the Institute on Lake Superior Geology,

Madison, Wisconsin, Proceedings, v 47, p. 85-86.

Jerde, E.A., Salvato, D.J., Thole, J., and Wirth, K.R., 2001, The early gabbroic series of the

Midcontinent Rift System: continued assessment of magmatic origins: 47th Annual

Meeting of the Institute on Lake Superior Geology, Madison, Wisconsin, Proceedings, v

47, p. 36-37.

Nicholson, S.W., Boerboom, T., Cannon, W.F., Wirth, K., and Isachsen, C.E., 2001, A new look

at the 1.1 Ga Chengwatana volcanics in the St. Croix Horst, Minnesota and Wisconsin:

47th Annual Meeting of the Institute on Lake Superior Geology, Madison, Wisconsin,

Proceedings, v 47, p. 71-72.

11

Vervoort, J.D., Wirth, K.R., Gehrels, G.E., Kennedy, B.C., and Sandland, T.O., 2001, Granites

and rhyolites of the Midcontinent Rift: Annual Meeting Of The Geological Association of

Canada Mineralogical Association of Canada, St. Johns, Newfoundland, 27-30 May,

2001, Abstracts Volume 26, p. 157.

Terry, Rebecca, Rogers, R.R., and Wirth, K.R., 2001, Geochemical characterization and origin

of the Mpandi silcrete (Late Jurassic?), Limpopo Valley, Zimbabwe: Annual Meeting of

the Geological Society of America, Boston, Massachusetts, Abstracts with Programs, v. 33,

p. 446.

Adelsberger, Katherine, A., Wirth, Karl, R., and Mabulla, Audax, Z.P., 2002, Provenance of

Middle Stone Age tools of the Laetoli Archaeological Site, Tanzania: Annual Meeting of

the Geological Society of America, Denver, Colorado, Abstracts with Programs, v. 34, p.

110.

Wirth, Karl, R., and Adelsberger, Katherine, A., 2002, Mantle source and magmatic evolution of

the Late Pliocene Ogol Lava beds of Laetoli, Tanzania: Annual Meeting of the Geological

Society of America, Denver, Colorado, Abstracts with Programs, v. 34, p. 463.

Wirth, Karl R., 2003, An Inquiry-Based Approach To Learning Petrology Using Student-

Generated Data: Annual Meeting of the Geological Society of America, Seattle,

Washington, Abstracts with Programs, v. 34, no. 7, p. 122.

Mankiewicz, Carol, Wirth, Karl R., Bevis, Martin, Diggins, John IV, Douglas, Peter, Feucht,

Drew, Leven, Chelsea, Mathers, Genevive, Poteat, Veronica, Waldron, Alice, and Ballou

Stephen M., 2003, Modern Tilefish Mounds Of Isla Cozumel, Mexico: Annual Meeting of

the Geological Society of America, Seattle, Washington, Abstracts with Programs, v. 34,

no. 7, p. 597.

Davidson, Cameron, Wirth, Karl, R., Creasey, John, 2003, A Proposal To Build Data-Rich Rock

Suites For Learning Petrology: Annual Meeting of the Geological Society of America,

Seattle, Washington, Abstracts with Programs, v. 34, no. 7, p. 122.

Wirth, Karl R., 2003, Using an M&M magma chamber to illustrate magmatic differentiation:

Annual Meeting of the Geological Society of America, Seattle, Washington, Abstracts with

Programs, v. 34, no. 7, p. 250.

Wirth, Karl, R., 2003, Improving Student Understanding of Magmatic Differentiation Using an

M&M Magma Chamber: Eos Transactions, 2003 Fall Meeting of the American

Geophysical Meeting, San Francisco, CA, Abstracts with Programs, v. 84, no. 46, p. 455.

Wirth, Karl R., Davidson, Cameron, and Creasy, John W., 2003, Refining a Proposal to Build

Data-Rich Rock Suites for Learning Petrology: Eos Transactions, 2003 Fall Meeting of the

American Geophysical Meeting, San Francisco, CA, Abstracts with Programs, v. 84, no.

46, p. 455.

Mankiewcz, Carol, Wirth, Karl, Ballou, Steve, 2004, Recognizing tilefish mounds in the rock

record: Lessons from modern tilefish mounds of Isla Cozumel, Mexico: Seventh Annual

12

Keck Research Symposium in Geology, Washington and Lee University, April 2004,

Proceedings, p.32-36.

Vervoort, J.D., and Wirth, K.R., 2004, Origin of the rhyolites and granophyres of the

Midcontinent Rift, northeast Minnesota: 50th Annual Meeting of the Institute on Lake

Superior Geology, Duluth, Minnesota, Proceedings, v. 50, p. 158-159.

Wirth, Karl R., Vervoort, Jeffrey D., and Weisberger, Bethany, 2004, Origin and evolution of the

Kilimafedha greenstone belt, eastern Tanzania craton: Evidence from Nd and Pb isotopes:

Annual Meeting of the Geological Society of America, Denver, Colorado, Abstracts with

Programs, v. 36, no. 5, p. 224.

Weisberger, Bethany, Wirth, Karl R., and Vervoort, Jeffrey D., 2004, Origin and evolution of the

Kilimafedha greenstone belt, eastern Tanzania craton: Evidence from field geology and

whole rock geochemistry: Annual Meeting of the Geological Society of America, Denver,

Colorado, Abstracts with Programs, v. 36, no. 5, p. 224.

Foreman, B., Rogers, R., Wirth, K. and Hanna, R., 2004, Geochemical correlation and

characterization of Two Medicine Formation bentonites, Northwestern Montana: Annual

Meeting of the Society for Vertebrate Paleontologists, Denver, Colorado, Abstracts with

Programs, v. 24, no. 3, p. 59.

Wirth, Karl R., 2004, Using Problem-Based Learning (PBL) to teach introductory earth science

(INVITED): Annual Meeting of the Geological Society of America, Denver, Colorado,

Abstracts with Programs, v. 36, no. 5, p. 277.

Greenler, R., Greenler, J., Wirth, K., and Tunnicliff, K., 2004, Challenges and Opportunities of

Learning Science in Tanzania: ACM African Studies Conference, Colorado College, CO.

Greenler, J., Greenler, R., Wirth, K., and Tunnicliff, K., 2004, Science Study Abroad and Socio-

Cultural Issues; New Directions in International Education: Building Context, Connections,

and Knowledge, Beloit College, Beloit, WI.

Perkins, Dexter, Wirth, Karl R., 2005, Knowledge surveys and the Mineralogy course:

Innovations in the Scholarship of Teaching and Learning at the Liberal Arts Colleges, St.

Olaf and Carleton College, Minnesota, April 1-3, 2005.

Wirth, Karl R., Perkins, Dexter, 2005, Knowledge surveys: the ultimate course design and

assessment tool for faculty and students: Innovations in the Scholarship of Teaching and

Learning at the Liberal Arts Colleges, St. Olaf and Carleton College, Minnesota, April 1-3,

2005.

Koralesky, Barron, Serie, Jan, and Wirth, Karl, 2005, A faculty seminar series to foster

implementation of web-based tools in the classroom: Innovations in the Scholarship of

Teaching and Learning at the Liberal Arts Colleges, St. Olaf and Carleton College,

Minnesota, April 1-3, 2005.

13

Nicholson, S. W., Green, J.C., Wirth, K.R., Vervoort, J.D., 2005, Geochemical evolution of the

volcanic rocks of the 1.1 Ga Midcontinent rift system: Geological Society of America,

North-Central Section Annual Meeting, May 2005, St. Paul, MN, Abstracts with Programs,

v. 37, n. 5, p. 73.

Cannon, W.F., Miller, James D.W., Easton, R.M., Nicholson, S.W., Woodruff, L.G., Green, J.C.,

Boerboom, T.J., Wirth, K.R., McIlraith, S.J., and Wahl, T.E., 2005, A Geographic

Information System On The Geology And Mineral Resources Of The Midcontinent Rift

System: Geological Society of America, North-Central Section Annual Meeting, May

2005, St. Paul, MN, Abstracts with Programs, v. 37, n. 5, p. 29-30.

Williams, Josephine, Harwood, Cara, Rogers, Raymond, Wirth, Karl, and Thole, Jeffrey, 2005,

Authigenic cements in fossil bones from the Upper Cretaceous Two Medicine and Judith

River Formations, Montana: Geological Society of America, North-Central Section

Annual Meeting, May 2005, St. Paul, MN, Abstracts with Programs, v. 37, n. 5, p. 33.

Dwyer, Christopher N., Rogers, Raymond R., Fricke, Henry, Wirth, Karl, and Thole, Jeffrey,

2005, A comparative study of REE signatures and authigenic cements in dinosaur teeth and

gar scales from the Upper Cretaceous Two Medicine and Judith River Formations of

Montana: Geological Society of America, North-Central Section Annual Meeting, May

2005, St. Paul, MN, Abstracts with Programs, v. 37, n. 5, p. 81.

Wirth, Karl R., Perkins, Dexter, and Nuhfer, Ed, 2005, Knowledge surveys: an ideal tool for

assessing learning and for evaluating instructional practices and curricula (INVITED):

Annual Meeting of the Geological Society of America, Salt Lake City, Utah, Abstracts

with Programs, v. 37, no. 7, p. 119.

Wirth, Karl R., Craddock, John, and Watkins, Timothy, 2005, Geology and biology in the

Gal pagos Islands (INVITED): Annual Meeting of the Geological Society of America, Salt

Lake City, Utah, Abstracts with Programs, v. 37, no. 7, p. 193.

Perkins, Dexter, and Wirth, Karl R., 2005, Knowledge surveys: applications and results: Annual

Meeting of the Geological Society of America, Salt Lake City, Utah, Abstracts with

Programs, v. 37, no. 7, p. 222.

Wirth, Karl R., 2005, Learning to learn: why not be explicit in the classroom?: Annual Meeting

of the Geological Society of America, Salt Lake City, Utah, Abstracts with Programs, v.

37, no. 7, p. 549.

Craddock, J., Wirth, K., and Davidson, C., 2006, Precambrian Evolution of Minnesota: Project

Summary: Ninth Annual Keck Research Symposium in Geology, Smith College, April

2006, Proceedings, p.

Wirth, K.R., Craddock, J., Davidson, C., Vervoort, J., Finley-Blasi, L., Kerber, L., Lundquist, B.,

Vorhies, S., Walker, E., Andring, M., Juda, N., Patel, D., Porter, R., 2006, Sources of

sediment in the northern Midcontinent region during the Early Proterozoic to Early

Paleozoic: Evidence from U-Pb studies of detrital zircons: 52nd Annual Meeting of the

14

Institute on Lake Superior Geology, Sault Ste. Marie, Ontario, Proceedings and Abstracts,

v. 52, Part I, p. 69-70.

Craddock, John, P., Patel, Dhiren, Porter, Ryan, and Wirth, Karl, R., 2006, Anisotropy of

Magnetic Susceptibility (AMS) Analysis of Keweenaw Rift Rhyolites, Minnesota: 52nd

Annual Meeting of the Institute on Lake Superior Geology, Sault Ste. Marie, Ontario,

Proceedings and Abstracts, v. 52, Part I, p. 13-14.

Juda, Natalie, Wirth, Karl, R., Craddock, John, P., Vervoort, Jeff, and Andring, Matt, 2006,

Petrogenesis of a granite xenolith in the 1.1 Ga Midcontinent Rift at Silver Bay, MN: 52nd

Annual Meeting of the Institute on Lake Superior Geology, Sault Ste. Marie, Ontario,

Proceedings and Abstracts, v. 52, Part I, p. 35-36.

Nicholas, S.L., Wirth, K.R., Lapakko, K.A., and Engstrom, J., 2006, SEM Investigations of

Sulfide Oxidation in Leaching Experiments of Mine-Rock Wastes: Annual Meeting of the

Geological Society of America, Philadelphia, Pennsylvania, Abstracts with Programs, v.

38, no. 7, p. 432.

Wirth, K.R., Vervoort, J., Craddock, J.P., Davidson, C., Finley-Blasi, L., Kerber, L., Lundquist,

R., Vorhies, S., and Walker, E., 2006, Source Rock Ages and Patterns of Sedimentation in

the Lake Superior Region: Results of Preliminary U-Pb Detrital Zircon Studies: Annual

Meeting of the Geological Society of America, Philadelphia, Pennsylvania, Abstracts with

Programs, v. 38, no. 7, p. 505.

Finley-Blasi, L., Davidson, C., Wirth, K.R., Craddock, J.P., and Vervoort, J.D., 2006, U-Pb

Dating Of Detrital Zircon From The Neoproterozoic Fond du Lac and Hinckley

Sandstone Formations Near Duluth, Minnesota: Annual Meeting of the Geological Society

of America, Philadelphia, Pennsylvania, Abstracts with Programs, v. 38, no. 7, p. 505.

Perkins, D., and Wirth, K.R., 2007, Helping Students Develop Metacognitive Skills:

Innovations in the Scholarship of Teaching and Learning at the Liberal Arts Colleges, St.

Olaf and Carleton College, Minnesota, February 16-18, 2007.

Wirth, K.R., and Perkins, D., 2007, Learning About Thinking and Thinking About Learning:

Innovations in the Scholarship of Teaching and Learning at the Liberal Arts Colleges, St.

Olaf and Carleton College, Minnesota, February 16-18, 2007.

Authored Websites

(Undergraduate student co-authors are underlined)

Wirth, Karl R., and Perkins, Dexter, 2005, Knowledge Surveys: A web resource developed for

On the Cutting Edge: Professional Development for Geoscience Faculty,

(http://serc.carleton.edu/NAGTWorkshops/assess/knowledgesurvey/index.html)

updated 02/07

15

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