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Cynthia Dusel-Bacon



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Short Biography

Geologist with the USGS in Menlo Park since 1975, regional geology and tectonics of east-central Alaska and the northern Cordillera; trace-element tectonic fingerprinting of (meta)igneous rocks; syngenetic hydrothermal mineralization (VMS and Sedex deposits); geologic setting of mineral prospects in east-central Alaska; and distribution and petrology of metamorphic rocks in Alaska.  In 1977, during my third field season of mapping in the Big Delta quadrangle of east-central Alaska, I was mauled by a black bear and lost both arms as a result of my injuries.  Fortunately my disability has not kept me from continuing with fieldwork in Alaska.



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Published Papers and Maps

 

Dusel-Bacon, Cynthia, Foley, N.K., Slack, J.F., Koenig, A.E., and Oscarson, R.L., 2012, Peralkaline- and calc-alkaline-hosted volcanogenic massive sulfide deposits of the Bonnifield district, east central Alaska: Economic Geology, v. 107, no. 7, p. 1403–1432.

 

Dusel-Bacon, Cynthia, 2012, Petrology of sedimentary rocks associated with volcanogenic massive sulfide deposits, in Shanks, W.C.P. III, and Thurston, Roland, eds., Volcanogenic massive sulfide occurrence model: U.S. Geological Survey, Scientific Investigations Report 2010–5070–C, Chapter 16, 8 p.

 

Dusel-Bacon, Cynthia, 2012, Petrology of metamorphic rocks associated with volcanogenic massive sulfide deposits, in Shanks, W.C.P. III, and Thurston, Roland, eds., Volcanogenic massive sulfide occurrence model: U.S. Geological Survey, Scientific Investigations Report 2010-5070-C, Chapter 17. 10 p.

 

Dusel-Bacon, Cynthia, Slack, J.F., Koenig, A.E., Foley, N.K., Oscarson, R.L., and Gans, K.D., 2011, Whole-rock and sulfide-mineral geochemical data for samples from volcanogenic massive sulfide deposits of the Bonnifield district, east central Alaska: U.S. Geological Survey Open-File Report 2011-1171, 43 p. and data tables.

 

Dumoulin, J.A., and Dusel-Bacon, Cynthia, eds., 2011, Studies by the U.S. Geological Survey in Alaska, 2010: U.S. Geological Survey Professional Paper 1784.

 

Shanks, W.C.P. III, Dusel-Bacon, Cynthia, Koski, Randolph, Morgan, L.A., Mosier, Dan, Piatak, N.M., Ridley, Ian, Seal, R.R., II, Schulz, K.J., Slack, J.F., and Thurston, Roland, 2009, A new occurrence model for National assessment of undiscovered volcanogenic massive sulfide deposits: U.S. Geological Survey Open-File Report 2009-1235, 27 p. http://pubs.usgs.gov/of/2009/1235

 

Dusel-Bacon, Cynthia, Aleinikoff, J.N., Premo, W.R., Paradis, Suzanne, and Lohr-Schmidt, Ilana, 2010, Tectonic setting and metallogenesis of volcanogenic massive-sulfide deposits in the Bonnifield mining district, northern Alaska Range, in, Gough, L.P. and Day, W.C., eds., Recent U.S. Geological Survey studies in the Tintina gold province, Alaska, United States, and Yukon, Canada—Results of a 5-year project:  U.S. Geological Survey, Scientific Investigations Report 2007-5289-B, p. B1-B7.

 

Hubbard, B.E., Dusel-Bacon, Cynthia, Rowan, L.C., and Eppinger, R.G., 2010, Mapping known and potential mineral occurrences and host rocks in the Bonnifield mining district, southernmost Tintina Metallogenic Province, Alaska, using minimal cloud- and snow-cover ASTER data, in, Gough, L.P. and Day, W.C., eds., Recent U.S. Geological Survey studies in the Tintina gold province Alaska, U.S.A., and Yukon, Canada — Summary results of a five-year project:  U.S. Geological Survey, Scientific Investigations Report 2008-5289-E, p. E1-E8. 

 

Eppinger, R.G., Briggs, P.H., Dusel-Bacon, Cynthia, Giles, S.A., Gough, L.P., Hammarstrom, J.M., and Hubbard, B.E., 2010, Environmental geochemical study of Red Mountain, an undisturbed volcanogenic massive sulfide deposit in the Bonnifield district, Alaska Range, east-central Alaska, , in, Gough, L.P. and Day, W.C., eds., Recent U.S. Geological Survey studies in the Tintina gold province Alaska, U.S.A., and Yukon, Canada — Summary results of a five-year project:  U.S. Geological Survey, Scientific Investigations Report 2008-5289-I, p. I1-I9. 

 

Dusel-Bacon, Cynthia, and Williams, I.S., 2009, Zircon U-Pb evidence for prolonged mid-Paleozoic plutonism and the ages of crustal sources in east-central Alaska:  Canadian Journal of Earth Sciences, v. 46, p. 21-39.

 

Dusel-Bacon, Cynthia, Slack, J.F., Aleinikoff, J.N., and Mortensen, J.K., 2009, Mesozoic magmatism and base-metal mineralization in the Fortymile mining district, eastern Alaska—Initial results of petrographic, geochemical, and isotopic studies in the Mount Veta area, in Haeussler, P.J., and Galloway, J.P., eds., Studies by the U.S. Geological Survey in Alaska, 2007:  U.S. Geological Survey Professional Paper 1760-A, 42 p.

Dusel-Bacon, Cynthia, Slack, J.F., Belkin, H.E., 2007, The magmatic to hydrothermal transition in peralkaline-hosted VMS systems: An example from the Bonnifield district, east-central Alaska, USA, in Andrew, C.J., ed., Proceedings out of the 9th Biennial Meeting of the Society for Geology Applied to Mineral Deposits, Dublin, Ireland, 20th-23rd of August 2007, Mineral Exploration and Research: Digging Deeper:  Irish Association for Economic Geology, ISBN [0-950989-4-4], v. 2, p. 1045-1048.

 

Eppinger, R.G., Briggs, P.H., Dusel-Bacon, Cynthia, Giles, S.A., Gough, L.P., Hammarstrom, J.H., and Hubbard, B.E., 2007, Environmental geochemistry at Red Mountain, an unmined volcanogenic massive sulphide deposit in the Bonnifield district, Alaska Range, east-central Alaska:  Geochemistry, Exploration, Environment, Analysis, v.7, no. 3, p.207-223.

 

Hubbard, B.E.., Rowan, L.C., Dusel-Bacon, Cynthia, and Eppinger, R.G., 2007, Geologic Mapping and Mineral Resource Assessment of the Healy and Talkeetna Mountains Quadrangles, Alaska Using Minimal Cloud- and Snow-Cover ASTER Data:  U.S. Geological Survey Open-File Report 2007-1046.

 

Dusel-Bacon, C., Hopkins, M.J., Mortensen, J.K., Dashevsky, S.S., Bressler, J.R., and Day, W.C., 2006, Paleozoic tectonic and metallogenic evolution of the pericratonic rocks of east-central Alaska and adjacent Yukon Territory, in Colpron, M., and Nelson, J.L., eds., Paleozoic Evolution and Metallogeny of Pericratonic Terranes at the Ancient Pacific Margin of North America, Canadian and Alaskan Cordillera: Geological Association of Canada, Special Paper 45, p. 25-74.

 

Mortensen, J.K., Dusel-Bacon, C., Hunt, J., and Gabites, J., 2006, Lead isotopic constraints on the metallogeny of middle and late Paleozoic syngenetic base metal occurrences in the Yukon-Tanana and Slide Mountain/Seventymile Terranes and adjacent portions of the North American miogeocline, in Colpron, M., and Nelson, J.L., eds., Paleozoic Evolution and Metallogeny of Pericratonic Terranes at the Ancient Pacific Margin of North America, Canadian and Alaskan Cordillera: Geological Association of Canada, Special Paper 45, p. 261-280.

 

Piercey, S.J., Nelson, J.L., Colpron, M., Dusel-Bacon, C., Simard, R-L., and Roots, C.F., 2006, Paleozoic magmatism and crustal recycling along the ancient Pacific margin of North America: Geochemical constraints from Yukon-Tanana and related terranes in northern British Columbia, Yukon, and eastern Alaska, in Colpron, M., and Nelson, J.L., eds., Paleozoic Evolution and Metallogeny of Pericratonic Terranes at the Ancient Pacific Margin of North America, Canadian and Alaskan Cordillera: Geological Association of Canada, Special Paper 45, p. 281-322.

 

Nelson, J.L., Colpron, M., Piercey, S.J., Dusel-Bacon, C., Murphy, D.C., and Roots, C., 2006, Paleozoic tectonic and metallogenetic evolution of pericratonic terranes in Yukon, northern British Columbia and eastern Alaska, in Colpron, M., and Nelson, J.L., eds., Paleozoic Evolution and Metallogeny of Pericratonic Terranes at the Ancient Pacific Margin of North America, Canadian and Alaskan Cordillera: Geological Association of Canada, Special Paper 45, p.323-360.

 

Dusel-Bacon, Cynthia, Wooden, J.L., and Hopkins, M.J., 2004, U-Pb zircon and geochemical evidence for bimodal mid-Paleozoic magmatism and syngenetic base-metal mineralization in the Yukon-Tanana terrane, Alaska: Geological Society of America Bulletin, v. 116, no. 7/8, p. 989-1015.

 

Eppinger, R.G., Briggs, P.H., and Dusel-Bacon, Cynthia, 2004, Environmental geochemistry of an undisturbed volcanogenic massive sulfide deposit, Red Mountain, Bonnifield mining district, east-central Alaska, in Wanty, R.B., and Seal, R.R. II, eds., Proceedings of the 11th International Symposium on Water-Rock Interaction [extended abstracts], London, Taylor and Francis Group, p. 1483-1487.

 

Dusel-Bacon, Cynthia, Mortensen, J.K., and Fredericksen, Rick, 2003, Cretaceous epigenetic base-metal mineralization at the Lead Creek prospect, eastern Yukon-Tanana Upland, Alaska: Constraints from lead isotopic data from sulfides and zircons, in Galloway, J.P., ed., Studies in Alaska by the U.S. Geological Survey during 2001: U.S. Geological Survey Professional Paper 1678, p. 31-40.

 

Oliver, D.H., and Dusel-Bacon, Cynthia, 2003, Kinematic analysis from tectonites in the northern Big Delta quadrangle, east-central Alaska, in Gallaway, J.P., ed., Studies in Alaska by the U.S. Geological Survey during 2001: USGS Professional Paper 1678, p. 61-70.

 

Dusel-Bacon, Cynthia, and Harris, A.G., 2003, New occurrences of late Paleozoic and Triassic fossils from the Seventymile and Yukon-Tanana terranes, east-central Alaska, with comments on previously published occurrences in the same area, in Galloway, J.P., ed., Studies in Alaska by the U.S. Geological Survey during 2001: U.S. Geological Survey Professional Paper 1678, p. 5-30.

 

Dusel-Bacon, Cynthia, Wooden, J.L., and, Layer, P.W., 2003, A Cretaceous SHRIMP U-Pb zircon age for the West Point orthogneiss: Evidence for another gneiss dome in the Yukon-Tanana Upland, in Galloway, J.P., ed., Studies in Alaska by the U.S. Geological Survey during 2001: U.S. Geological Survey Professional Paper 1678, p. 41-60.

 

Dusel-Bacon, Cynthia, Lanphere, M.A., Sharp, W.D., Layer, P.W., and Hanson, V.L., 2002, Mesozoic thermal history and timing of structural events for the Yukon-Tanana Upland, east-central Alaska: 40Ar/39Ar data from metamorphic and plutonic rocks: Canadian Journal of Earth Sciences, v. 39, no. 6, p. 1013-1051.

 

Dusel-Bacon, Cynthia, and Murphy, J.M., 2001, Apatite fission-track evidence of widespread Eocene heating and exhumation in the Yukon-Tanana Upland, interior Alaska: Canadian Journal of Earth Sciences, v. 38, no. 8, p. 1191-1204.

 

Dusel-Bacon, Cynthia, and Cooper, K.M., 2000, Trace-element geochemistry of metabasaltic rocks from the Yukon-Tanana Upland and implications for the origin of tectonic assemblages in east-central Alaska: Canadian Journal of Earth Sciences, v. 36, no. 10, p. 1671-1695.

 

Dusel-Bacon, Cynthia, Bressler, J.R., Takaoka, H., Mortensen, J.K.,Oliver, D.H., Leventhal, J.S. Newberry, R.J., and Bundtzen, T.K., 1998, Stratiform zinc-lead mineralization in Nasina assemblage rocks of the Yukon-Tanana Upland in east-central Alaska: U.S. Geological Survey Open-File Report 98-340 (URL http://geopubs.wr.usgs.gov/open-file/of98-340/).

 

Hansen, V.L., and Dusel-Bacon, Cynthia, 1998, Structural and kinematic evolution of the Yukon-Tanana upland tectonites, east-central Alaska: A record of late Paleozoic to Mesozoic crustal assembly: Geological Society of America Bulletin, v. 110, no. 2, p. 211-230.

 

Dusel-Bacon, Cynthia, and Aleinikoff, J.N., 1996, U-Pb zircon and titanite ages for augen gneiss from the Divide Mountain area, eastern Yukon-Tanana upland, Alaska, and evidence for the composite nature of the Fiftymile Batholith, in Moore, T.E., and Dumoulin, J.A., eds., Geologic Studies in Alaska by the U.S. Geological Survey during 1994: U.S. Geological Survey Bulletin 2152, p. 131-141.

 

Dusel-Bacon, Cynthia, Doyle, E.O., and Box, S.E., 1996, Distribution, facies, ages, and proposed tectonic associations of regionally metamorphosed rocks in southwestern Alaska and the Alaska Peninsula: U.S. Geological Survey Professional Paper 1497-B, 1:1,000,000-scale colored map, 30 p.

 

Dusel-Bacon, Cynthia, Brew, D.A., and Douglass, S.L., 1996, Metamorphic facies map and explanatory text, southeastern Alaska: U.S. Geological Survey Professional Paper 1497-D, 1:1,000,000-scale colored map, 32 p.

 

Hansen, V.L., Oliver, D.H. and Dusel-Bacon, Cynthia, 1995, Comment on "Hot-side-up aureole in southwest Yukon and limits on terrane assembly of the northern Canadian Cordillera" by S. T. Johnston and P. Erdmer: Geology, v. 23, n. 12, p. 1151-1152.

 

Roeske, S.M., Dusel-Bacon, Cynthia, Aleinikoff, J.N., Snee, L.W., and Lanphere, M.A., 1995, Metamorphic and structural history of continental crust at a Mesozoic collisional margin, the Ruby terrane, central Alaska: Journal of Metamorphic Geology, v. 13, no. 1, p. 25-41.

 

Dusel-Bacon, Cynthia, Hansen, V.L., and Scala, J.A., 1995, High-pressure amphibolite facies dynamic metamorphism and the Mesozoic tectonic evolution of an ancient continental margin, east-central Alaska: Journal of Metamorphic Geology, v. 13, no. 1, p. 9-24.

 

Dusel-Bacon, Cynthia, and Ohms, Mark, 1994, Creating a "foot mouse" for the Macintosh: Vortechs, Center for Rehabilitation Services, South Carolina Vocational Rehabilitation Department, v. 2, Issue 2, p.7.

 

Dusel-Bacon, Cynthia, 1994, Map and table showing metamorphic rocks of Alaska, in Plafker, George, and Berg, H.C., eds., The Geology of Alaska: Boulder, Colorado, Geological Society of America, The Geology of North America, v. G-1, Plate 4, scale 1:2,500,000, 2 sheets.

 

Dusel-Bacon, Cynthia, 1994, Metamorphic history of Alaska, in Plafker, George, and Berg, H.C., eds., The Geology of Alaska: Boulder, Colorado, Geological Society of America, The Geology of North America, v. G-1, p. 495-533.

 

Dusel-Bacon, Cynthia, Csejtey, Béla, Jr., Foster, H.L., Doyle, E.O., Nokleberg, W.J., and Plafker, George, 1993, Distribution, facies, ages, and proposed tectonic associations of regionally metamorphosed rocks in east- and south-central Alaska: U.S. Geological Survey Professional Paper 1497-C, 73 p., 2 pls., (1:1,000,000-scale colored map).

 

Dusel-Bacon, Cynthia, and Till, A.B, 1993, Introduction, in Dusel-Bacon, Cynthia, and Till, A.B., eds., Geologic Studies in Alaska by the U.S. Geological Survey, 1992: U.S. Geological Survey Bulletin 2068, p. 1.

 

Bradley, D.C., and Dusel-Bacon, Cynthia, 1992, Introduction, in Bradley, D.C., and Dusel-Bacon, Cynthia, eds., Geologic Studies in Alaska by the U.S. Geological Survey, 1991: U.S. Geological Survey Bulletin 2041, p. 1.

 

Dusel-Bacon, Cynthia, and Hansen, V.L., 1992, High-pressure amphibolite-facies metamorphism and deformation within the Yukon-Tanana and Taylor Mountain terranes, eastern Alaska, in Bradley, D.C., and Dusel-Bacon, Cynthia, eds., Geologic Studies in Alaska by the U.S. Geological Survey, 1991: U.S. Geological Survey Bulletin 2041, p. 140-159.

 

Dusel-Bacon, Cynthia, Brosgé, W.P., Till, A.B., Doyle, E.O., Mayfield, C.F., Reiser, H.N., and Miller, T.P., 1989, Distribution, facies, ages, and proposed tectonic associations of regionally metamorphosed rocks in northern Alaska: U.S. Geological Survey Professional Paper 1497-A, 44 p., 2 pls., (1:1,000,000-scale colored map).

 

Aleinikoff, J.N., Dusel-Bacon, Cynthia, Foster, H.L., and Nokleberg, W.J., 1987, Pb-isotopic fingerprinting of tectonostratigraphic terranes, east-central Alaska: Canadian Journal of Earth Sciences, v. 24, p.2089-2098.

 

Aleinikoff, J.N., Dusel-Bacon, Cynthia, and Foster, H.L., 1986, Geochronology of augen gneiss and related rocks, Yukon-Tanana terrane, east-central Alaska: Geological Society of America Bulletin, v. 97, no. 5, p. 626-637.

 

Dusel-Bacon, Cynthia, and Aleinikoff, J.N., 1985, Petrology and tectonic significance of augen gneiss from a belt of Mississippian granitoids in the Yukon-Tanana terrane, east-central Alaska: Geological Society of America Bulletin, v. 96, n. 4, p. 411-425.

 

Aleinikoff, J.N., Foster, H.L., Nokleberg, W.J., and Dusel-Bacon, Cynthia, 1984, Isotopic evidence from detrital zircons for Early Proterozoic crustal material, east-central Alaska, in Coonrad, W.L., and Elliott, R.L., eds., The United States Geological Survey in Alaska: Accomplishments during 1981: U.S. Geological Survey Circular 868, p. 43-45.

 

Aleinikoff, J.N., Dusel-Bacon, Cynthia, and Foster, H.L., 1984, Uranium-lead isotopic ages of zircon from sillimanite gneiss and implications for Paleozoic metamorphism, Big Delta quadrangle, east-central Alaska, in Coonrad, W.L., and Elliott, R.L., eds., The United States Geological Survey in Alaska: Accomplishments during 1981: U.S. Geological Survey Circular 868, p 45-48.

 

Dusel-Bacon, Cynthia, and Bacon, C.R., 1983, Concordant bands of augen gneiss within metasedimentary rocks in the Big Delta C-2 quadrangle, in Coonrad, W.L., and Elliott, R.L., eds., The United States Geological Survey in Alaska: Accomplishments during 1981: U.S. Geological Survey Circular 868, p. 48-50.

 

Dusel-Bacon, Cynthia, 1983, Trace element evidence for the tectonic affinities of some amphibolites from the Yukon-Tanana Upland, in Coonrad, W.L., and Elliott, R.L., eds., The United States Geological Survey in Alaska: Accomplishments during 1981: U.S. Geological Survey Circular 868, p. 50-54.

 

Dusel-Bacon, Cynthia, and Foster, H.L., 1983, A sillimanite gneiss dome in the Yukon crystalline terrane, east-central Alaska: Petrography and garnet-biotite geothermometry: U.S. Geological Survey Professional Paper 1170-E, 25 p.

 

Aleinikoff, J.N., Dusel-Bacon, Cynthia, Foster, H.L., and Futa, Kiyoto, 1981, Proterozoic zircon from augen gneiss, Yukon-Tanana Upland, east-central Alaska: Geology, v. 9, p. 469-473.

 

Aleinikoff, J.N., Dusel-Bacon, Cynthia, and Foster, H.L., 1981, Geochronologic studies in the Yukon-Tanana Upland, east-central Alaska, in Albert, N.R.D., and Hudson, Travis, eds., The United States Geological Survey in Alaska: Accomplishments during 1979: U.S. Geological Survey Circular 823-B, p. B34-B37.

 

Dusel-Bacon, Cynthia, Stern, T.W., Foster, H.L., and Bentz, J. L., 1979, Preliminary results of an augen gneiss study, Big Delta quadrangle, Alaska, in Johnson, K.M., and Williams, J. R., The United States Geological Survey in Alaska: Accomplishments during 1978: U.S. Geological Survey Circular 804-B, p. 57-59.

 

Weber, F.R., Foster, H.F., Keith, T.E.C., and Dusel-Bacon, Cynthia, 1978, Preliminary geologic map of the Big Delta quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-529-A, scale 1:250,000.

 

Hessin, T.D., Cooley, E.F., and Dusel-Bacon, Cynthia, 1978, Geochemical map showing the distribution and abundance of bismuth, antimony, and silver in nonmagnetic heavy-mineral concentrate samples in the Big Delta quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-529-F, scale 1:250,000.

 

Cobb, E.H., Dusel-Bacon, Cynthia, MacKevett, E.M., Jr., and Berg, H.C., 1977, Map showing distribution of mineral deposits (other than organic fuels and construction materials) in Alaska: U.S. Geological Survey Open-File Report 77-496, 45 p. 1 map sheet, scale 1:2,500,000.

 

Foster, H.L., Weber, F.R., and Dusel-Bacon, Cynthia, 1977, Gneiss dome in the Big Delta C-4 quadrangle, Yukon-Tanana Upland, Alaska, in Blean, K. M., ed., The United States Geological Survey in Alaska: Accomplishments during 1976: U.S. Geological Survey Circular 751B, p. 33.

 

Foster, H.L., Dusel-Bacon, Cynthia, and Weber, F.R., 1977, Reconnaissance geologic map of the Big Delta C-4 quadrangle, Alaska: U.S. Geological Survey Open-File Map 77-262, 1 sheet, scale 1:63,360.

 

Dusel, C.J., compiler, 1976, Status of land in the Tanacross quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF767D, 1 sheet, scale 1:250,000.

 

Abstracts

 

Dusel-Bacon, Cynthia, O'Sullivan, Paul B., Aleinikoff, John N., Day, Warren C., Slack, John F., and Siron, Chris R., 2012, New SHRIMP U-Pb zircon and apatite fission track ages constrain the deformational history and timing of carbonate replacement mineralization in the western Fortymile mining district, east central Alaska: Association of Canada-Mineralogical Association of Canada Annual Meeting, St. John's, Newfoundland, v. 35, p. 38, (http://www.stjohns2012.ca/gac/wp-content/uploads/2012/05/StJohns2012_GAC-MAC_Abstracts.pdf).

 

 

Bacon, C.R., Dusel-Bacon, Cynthia, Aleinikoff, J.N., and Slack, J.F., 2012, Late Cretaceous Middle Fork caldera and its resurgent intrusion, east-central Alaska [abs.]:  Geological Association of Canada–Mineralogical Association of Canada Annual Meeting, St. John's, Newfoundland, v. 35, p. 6, (http://www.stjohns2012.ca/gac/wp-content/uploads/2012/05/StJohns2012_GAC-MAC_Abstracts.pdf).

 

 

Bacon, C.R., Dusel-Bacon, Cynthia, Aleinikoff, J.N., and Slack, J.F., 2012, Late Cretaceous Middle Fork caldera and its resurgent granite porphyry intrusion, east-central Alaska [abs.]: Abstract V31C-2806 presented at 2012 Fall Meeting, AGU, San Francisco, Calif., 3-7 Dec.

 

Day, W.C., O’Neill, J.M., Dusel-Bacon, Cynthia, Aleinikoff, J.N., and Saltus, R.W., 2010, Influence of geologic structures on mineral resources in the Yukon-Tanana Upland, Alaska [abs.]: Geological Society of America Abstracts with Programs, v. 42, no. 5, p. 674.

 

Dusel-Bacon, Cynthia , Aleinikoff, J.N., Day, W.C., O'Neill, J. M., Slack, J.F., and Wintzer, N.E., 2009, Implications of new SHRIMP U-Pb zircon crystallization ages for the origin of carbonate replacement and skarn mineralization in the western Fortymile mining district, east-central Alaska [abs.]: Geological Society of America Abstracts with Programs, v. 41, no. 7, p. 417.

 

Shanks, W.C.P., Dusel-Bacon, Cynthia, Koski, Randy, Morgan, L.A., Mosier, Dan, Piatak, N.M., Ridley, W.I., Schultz, K.J., Seal, R.R., II, Slack, J.F., and Thurston, Roland, 2009, Volcanogenic Massive Sulfide Deposits: Toward a New Occurrence Model [abs.]: Geological Society of America Abstracts with Programs, v. 41, no. 7, p. 524.

 

Day, W.C., O’Neill, J.M., Dusel-Bacon, Cynthia, Aleinikoff, J.N., Saltus, R.W., McLeod, Rob, Lester, Cullan, and Siron, Christopher, 2009, Structural corridors in the Yukon-Tanana Upland, Alaska—a tool for understanding regional metallogeny in a concealed terrane [abs.]: Northwest Mining Association 115th Annual Meeting, Exposition, and Short Courses, Reno/Sparks, Nevada, Technical Session Abstract Book, pages 45-46, (http://www.nwma.org/pdf/09Abstractbook.pdf).

 

Foley, N.K, Dusel-Bacon, Cynthia, Koenig, Alan, 2008, Comparative study of rare trace metals associated with massive sulfide deposits of the Bonnifield District, Alaska [abs]: in Belkin, H.E., ed., Program and Abstracts: Ninth Pan-American Conference on Research on Fluid Inclusions, in memory of Edwin Roedder:  PACROFI IX: June 2-5, 2008, USGS, Reston, VA, USA, Abstract 28.

 

Slack, J.F., Ridley, W.I., Dusel-Bacon, Cynthia, and Fayek, Mostafa, 2008, Extreme sulfur isotope variation in the Dry Creek massive sulfide deposit, east-central Alaska:  Goldschmidt 2008 Conference, Vancouver, B.C., Canada, Abstracts Volume (unpaginated) [also in Geochimica et Cosmochimica Acta, v. 72, no. 12, Supplement 1, p. A876].

 

Dusel-Bacon, Cynthia, Slack, J.F., Mortensen, J.K., Aleinikoff, J.N., Day, W.C., O’Neill, M.J, Saltus, R.W., Hubbard, B.E., and Deszcz-Pan, Maryla, 2008, Carbonate replacement and skarn mineralization in the Fortymile mining district, eastern Alaska: Initial results of petrologic, isotopic, structural, geophysical, and remote sensing investigations [abs.]:  Abstracts for the Alaska Miners Association 2008 Meeting, Anchorage, AK, p. 17-19.  Available at http://www.alaskaminers.org

 

Dusel-Bacon, Cynthia, Dashevsky, S.S., Aleinikoff, J.N., and Slack, J.F., 2007, VMS deposits of the peralkaline-hosted Bonnifield and calc-alkaline-hosted Delta districts, east-central Alaska[abs.]:  Arizona Geological Society Symposium on Ores and Orogenesis: Circum-Pacific Tectonics, Geologic Evolution, and Ore Deposits:

 

Hubbard, B.E., Rowan, L.C., Dusel-Bacon, Cynthia, and Eppinger, R.G., 2006, Geologic mapping and mineral resource assessment of the Healy-Talkeetna Mountains quadrangles, Alaska using minimal cloud- and snow-cover ASTER data [abs.]:  Geological Society of America Abstracts with Programs, v. 38, no. 7, p. 563.

 

Eppinger, R.G., Briggs, P.H., Dusel-Bacon, Cynthia, Giles, Stuart, Gough, L.P., Hammarstrom, J.M., and Hubbard, B.E., 2006, Naturally acidic and metalliferous waters at unmined volcanogenic massive sulfide deposits in the Bonnifield mining district, Alaska Range, east-central Alaska [abs.]:  7th International Symposium on Environmental Geochemistry, Beijing, China, September, 2006, Chinese Journal of Geochemistry, v. 25 (suppl.), p. 232.

 

Dusel-Bacon, C., Paradis, S., Murphy, D.C., Piercey, S.J., and Dashevsky, S.S., 2006, Volcanic-hosted massive sulfide deposits of the Northern Cordillera: Diverse expressions at extension and subduction along the Paleozoic North American continental-margin: Geological Society of America Abstracts with Programs, v. 38, no. 5, p. 69.

 

Dusel-Bacon, C., Mortensen, J.K., and Nelson, J.N., 2006, Two-fold division of Yukon-Tanana terrane in east-central Alaska into parautochthonous and allochthonous elements and the need for clarification of terminology: Geological Society of America Abstracts with Programs, v. 38, no. 5, p. 6.

 

Eppinger, R.G., Briggs, P.H., Dusel-Bacon, C., Giles, S., Gough, L.P., Hammarstrom, J.M., and Hubbard, B.E., 2006, High level and rare earth element contents in surface waters at Red Mountain, and unmined volcanogenic massive sulfide deposit in the Bonnifield mining district, Alaska Range, east-central Alaska: Geological Society of America Abstracts with Programs, v. 38, no. 5, p. 27.

 

Day, W.C., Gough, L.P., Goldfarb, R.J., Dusel-Bacon, Cynthia, and O'Neill, J.M., 2006, Metallogenic and geoenvironmental research in the Tintina Gold Province of interior Alaska [abs.]: Proceedings 112th Annual Meeting of the Northwest Miners Association, Exposition and Short Courses, Technical Session Abstract Book, v. 112, p. 5-6.

 

Dusel-Bacon, C., Premo, W.R., and Aleinikoff, J.N., 2005, Geochemical and Nd isotopic evidence for an extending continental-margin arc/back arc setting for peralkaline rhyolite-hosted massive sulfide deposits of the Bonnifield district, east-central Alaska [abs.]: Geological Society of America Abstracts with Programs, v. 37, no. 7, p. 97.

 

Mortensen, J.K., Dusel-Bacon, C. and Hunt, J., 2003, Lead isotopic constraints on the metallogeny of syngenetic base metal occurrences in the Yukon-Tanana Terrane and adjacent portions of the North American Miogeocline; [abs.]: Vancouver2003 Abstracts, CD-ROM, Geological Association of Canada-Mineralogical Association of Canada-Society of Economic Geologists Joint Annual Meeting, Vancouver, B.C., v. 28, abstract no. 683, ISSN 0701-8738, ISBN: 0-919216-86-2.

 

Piercey, S.J., Colpron, M., Dusel-Bacon, C., Nelson, J.L., Simard, R-L. and , Yukon-Tanana Working Group, 2003, Paleozoic magmatic, tectonic, and crustal growth history of the ancient pacific margin of North America: Geochemical constraints from the Yukon-Tanana Terrane in British Columbia, Yukon, and Alaska; [abs.]: Vancouver2003 Abstracts, CD-ROM, Geological Association of Canada-Mineralogical Association of Canada-Society of Economic Geologists Joint Annual Meeting, Vancouver, B.C., v. 28, abstract no. 391, ISSN 0701-8738, ISBN: 0-919216-86-2.

 

Dusel-Bacon, C., Wooden, J.L., and Hopkins, M.J., 2003, Bimodal mid-Paleozoic magmatism and syngenetic base-metal mineralization in the Yukon-Tanana terrane, Alaska [abs.]: Vancouver2003 Abstracts, CD-ROM, Geological Association of Canada-Mineralogical Association of Canada-Society of Economic Geologists Joint Annual Meeting, Vancouver, B.C., v. 28, abstract no. 385, ISSN 0701-8738, ISBN: 0-919216-86-2.

 

Day, W.C., Aleinikoff, J.N., Dusel-Bacon, Cynthia, Goldfarb, Richard., Gough, L.P., and O’Neill, Michael, 2002, Complex Mesozoic deformation in the central part of the Yukon-Tanana Upland, Alaska—Implications for gold deposition in the Tintina Gold Province [abs.]: Geological Society of America Abstracts with Programs, v. 34, no. 6, p. A114.

 

Dusel-Bacon, C., Wooden, J.L., Bressler, J.R., 2001, New U-Pb zircon and geochemical evidence for bimodal mid-Paleozoic magmatism and syngenetic base metal mineralization in the Yukon-Tanana terrane, Alaska [abs.]: Geological Society of America Abstracts with Programs, v. 33, no. 6, p. A185.

 

Dusel-Bacon, Cynthia, Wooden, J.L., and Hoffmann, B.L, 2000, U-Pb dating and trace-element geochemistry track Late Devonian intra-arc extension and formation of Bonnifield VMS deposits and SEDEX occurrences in the Yukon-Tanana terrane, Interior Alaska [abs.]: Geological Society of America Abstracts with Programs, v. 32, no. 6, p. A12.

 

Dusel-Bacon, Cynthia, 1999, Effective strategies used by a disabled geologist in a research career [abs.]: Geological Society of America Abstracts with Programs, v. 31, no. 7, p. A273.

 

Dusel-Bacon, Cynthia, Wooden, J.L., Mortensen, J.K., Bressler, J.R., Takaoka, H., Oliver, D.H., Newberry, R., and Bundtzen, T.K., 1998, Metamorphic-hosted mineralization in the Yukon-Tanana Upland, Alaska [abs.]: Extended abstracts of the 16th Biennial Conference on Alaskan Mining, March 2-7, 1998, Fairbanks, Alaska Miners Association, p. 16-18.

 

Dusel-Bacon, Cynthia, Bressler, J.R., Takaoka, H., Mortensen, J.K., Oliver, D.H., Leventhal, J.S. Newberry, R.J., and Bundtzen, T.K., 1998, Stratiform zinc-lead mineralization in Nasina assemblage rocks of the Yukon-Tanana Upland in east-central Alaska [abs.]: Pathways '98, Extended Abstracts Volume: British Columbia & Yukon Chamber of Mines, p. 170-173

 

Dusel-Bacon, Cynthia, Bressler, J.R., Takaoka, H., Mortensen, J.K., Oliver, D.H., Leventhal, J.S., Newberry, R.J., and Bundtzen,T.K., 1997, Stratiform massive sulfides in the Yukon-Tanana Upland of Alaska: Are they there? [abs.]: Abstracts for the Alaska Miners Association 1997 Meeting, Anchorage, AK , p. 24-26.

 

Dusel-Bacon, Cynthia, Lanphere, M.A., Hansen, V.L., and Aleinikoff, J.N., 1995, Thermochronometric constraints on Mesozoic contraction and extension in the eastern Yukon-Tanana upland, Alaska [abs.]: Geological Society of America Abstracts with Programs, v. 27, no. 5, p. 16.

 

Heslop, Kate, Dusel-Bacon, Cynthia, and Williams, I.S., 1995, Survival of zircon U-Pb isotopic systems through partial melting and high P-T dynamothermal metamorphism, Yukon-Tanana terrane, Alaska [abs.]: Geological Society of America Abstracts with Programs, v. 27, no. 5, p. 26.

 

Dusel-Bacon, Cynthia, and Cooper, Kari, 1995, Geochemical and deformational constraints from the Yukon-Tanana upland, and implications for the origin and assembly of pericratonic and arc terranes in the northern Cordillera [abs.]: Geological Association of Canada, Mineralogical Association of Canada Annual Meeting, Programs with abstracts, v. 20, p. A-27.

 

Dusel-Bacon, Cynthia, and Hansen, V.L., 1992, High-P, moderate -T metamorphism and ductile deformation during early Mesozoic subduction and accretion, east-central Alaska [abs.]: Geological Society of America Abstracts with Programs, v. 24, no. 5, p. 21.

 

Dusel-Bacon, Cynthia, and Hansen, V.L., 1991, High-pressure, medium-temperature early Mesozoic metamorphism and deformation within the Yukon-Tanana composite terrane, eastern Alaska [abs.]: Geological Society of America Abstracts with Programs, v. 23, no. 2, p. 20.

 

Sisson, V.B., Pavlis, T.L., and Dusel-Bacon, Cynthia, 1990, Metamorphic constraints on Cretaceous crustal extension in the Yukon Crystalline terrane, east-central Alaska [abs.]: Geological Association of Canada, Mineralogical Association of Canada Annual Meeting, Programs with abstracts, v. 15, p.A-122.

 

Roeske, S.M., Dusel-Bacon, Cynthia, and Douglass, S.L., 1990, Cretaceous deformation and metamorphism in the southwest Ruby terrane, Alaska [abs.]: Geological Association of Canada, Mineralogical Association of Canada Annual Meeting, Programs with abstracts, v. 15, p.A-113.

 

Nokleberg, W.J., Foster, H.L., Dusel-Bacon, Cynthia, Lanphere, M.A., Aleinikoff, J.N., and Labson, V.F., 1990, Structure and tectonics of the Yukon-Tanana, southern Wickersham, and Seventymile terranes along the Trans-Alaskan Crustal Transect (TACT), east-central Alaska [abs.]: Geological Association of Canada, Mineralogical Association of Canada Annual Meeting, Programs with abstracts, v. 15, p.A-97.

 

Dusel-Bacon, Cynthia, and Douglass, S.L., 1990, New thermobarometric evidence for high-pressure, medium-temperature metamorphism of two subterranes of the Yukon-Tanana composite terrane (YTT) in easternmost Alaska [abs.]: Geological Association of Canada, Mineralogical Association of Canada Annual Meeting, Programs with abstracts, v. 15, p.A-35.

 

Aleinikoff, J.N., Dusel-Bacon, Cynthia, Foster, H.L., and Nokleberg, W.J., 1990, A summary of isotopic constraints on the history of the Yukon-Tanana terrane, east-central Alaska [abs.]: Geological Association of Canada, Mineralogical Association of Canada Annual Meeting, Programs with abstracts, v. 15, p.A-1.

 

Nokleberg, W.J., Dusel-Bacon, Cynthia, Foster, H.L., Lanphere, M.A., Plafker, George, and Aleinikoff, J.N., 1989, Structure and tectonics of the Yukon-Tanana, southern Wickersham, and Seventymile terranes along the Trans-Alaskan Crustal Transect (TACT), Alaska [abs]: Eos (American Geophysical Union Transactions), v. 70, no. 43, p. 1337.

 

Dusel-Bacon, Cynthia, 1987, Metamorphism in Alaska as a key to its tectonic evolution: Geological Society of America Abstracts with Programs, v. 19, no. 7, p. 649.

 

Dusel-Bacon, Cynthia, O'Rourke, E.F., Reading, K.E., Fitch, M.R., and Klute, M.A., 1985, Metamorphic facies map of Alaska [abs.]: American Association of Petroleum Geologists Bulletin, v. 69, n. 4, p. 663.

 

Dusel-Bacon, Cynthia, 1985, Metamorphic facies map shows timing and grade of regional metamorphism in Alaska [abs.]: Geological Society of America Abstracts with Programs, v. 17, n. 6, p. 352.

 

Dusel-Bacon, Cynthia, Aleinikoff, J.N., Mortensen, J.K., Foster, H.L., 1983, A belt of middle Paleozoic augen gneiss batholiths with evidence for an Early Proterozoic component in the crust beneath the Yukon-Tanana terrane [abs.]: Geological Association of Canada, Mineralogical Association of Canada, Canadian Geophysical Union Joint Annual Meeting, Programs with abstracts, v. 8, p. A-19.

 

Dusel-Bacon, Cynthia, 1983, Geochemistry of orthogneiss from a belt of deformed Mississippian batholiths, Yukon-Tanana terrane, Alaska [abs.]: Geological Society of America Abstracts with Programs, v. 15, no. 5, p. 411.

 

Dusel-Bacon, Cynthia, and Foster, H.L., 1980, A sillimanite gneiss dome in the Yukon Crystalline Terrane, east-central Alaska [abs.]: EOS (Transactions American Geophysical Union), v. 61, no. 46, p. 1156.

 

Dusel-Bacon, Cynthia, and Aleinikoff, J.N., 1980, Proterozoic cataclastic augen gneiss in the southeastern part of the Big Delta quadrangle, Yukon-Tanana upland, east-central Alaska [abs.]: Geological Society of America Abstracts with Programs, v. 12, no. 3, p. 104-105.


Alaska geology, petrology, geochemistry, syngenetic mineral deposits

Geologic and tectonic history of east-central Alaska utilizing geologic mapping, metamorphic petrology, whole-rock geochemistry and trace-element tectonic fingerprinting of (meta)igneous rocks, and U-Pb zircon, 40Ar-39Ar, and apatite fission track data generated by collaborating scientists.  Correlation of regional events in east-central Alaska with those in the northern Canadian Cordillera.  General interest in submarine, syngenetic hydrothermal mineral deposits hosted in volcanic and sedimentary rocks (VMS and Sedex deposits) and specific interest in the Bonnifield and Delta VMS deposits of the Alaska Range.  Petrography of igneous and metamorphic rocks.


Education, Societies, Awards, Committees, Employment

Education:

 

University of California Santa Barbara, BA, Spanish, 1968; San Jose State University, Secondary Teaching Credential (Spanish), 1969; San Jose State University, BA, Geology, 1975

 

 

Professional Societies:

 

Fellow, Geological Society of America, Geological Association of Canada; Member, Mineralogical Society of America, American Geophysical Union, Society of Economic Geologists, Society for Geology Applied to Mineral Deposits, B.C. and Yukon Chamber of Mines, American Association for the Advancement of Science's Resource Group for Science and the Handicapped

 

 

Honors and Awards:

 

Chosen for Univ. of California's Education Abroad program to Univ. of Madrid, Spain (1967-1968); Outstanding Handicapped Federal Employee (1 of 10) for 1981; Invited speaker for Harvard-Smithsonian Center for Astrophysics, Adventurous Women lecture series, 1995; Sonoma State University Distinguished Alumni Award (1999; spent 1972-74 in undergraduate Geology Program at Sonoma State University); US Department of the Interior Meritorious Service Award, 2011.

 

 

Committees and Editorial Boards: 

 

Committee of Visitors (COV) for the Deep Earth Processes Section of the National Science Foundation (2005); Geological Society of America, Cordilleran Section, Abstract Review Board (1981-84) and Nominations Committee (1997); USGS peer evaluation panels (1980, 90, 93, 2004, 2010), Branch of Alaskan Geology Advisory Committee (1985-86, 94), Western Region Mineral Resources Chief Scientist Selection Committee (1995), Minerals Program Proposal Evaluation Committee (1996).

 

Associate Editor, Geological Society of America Bulletin (1993-99); Co-Editor of Geologic Studies in Alaska by the US Geological Survey (1991, 1992; USGS Bulletins) and Studies by the U.S. Geological Survey in Alaska (2010 and 2011; USGS Professional Papers).

 

Employment:

 

Research Geologist, U.S. Geological Survey, 1980-present; Physical Science Technician, U.S. Geological Survey, 1975-1979.


Contact Information

Cynthia Dusel-Bacon
345 Middlefield Road
Menlo Park, CA 94025-3561
cdusel@usgs.gov
650-329-5719
650-329-5491 - Fax
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