EducationB.S., Brigham Young University, August 1980.
|
 |
Professional Background
2003-Present: Research Professor, Director of the Electron Microprobe
Lab,
Brigham Young University
2000-2003: Associate Research Professor, Director of the Electron Microprobe
Lab, Brigham Young University
1990-2000: Assistant Scientist, Director of Electron Microprobe Lab,
Indiana University.
1987-1990: Research Associate, Director of the Electron Microprobe Lab,
Indiana University.
Teaching
Indiana University:
Geology 103: Physical Geology
Geology 171: Environmental Geology
Geology 222: Mineralogy
Geology 690: Granite Seminar
Brigham Young University:
G565R Instrumental
Methods
R121 Book of Mormon
G590R Metamorphic
Petrology
Research
Current research projects include:
1) Granitic plutons of the New Hampshire Plutonic Suite in New Hampshire,
Maine, Vermont, and Massachusetts are being examined to determine the
nature of the basement beneath the allochthonous cover rocks to constrain
the location of the Laurentian (North American) and Avalonian/peri-Gondwanan boundary in central New England (Dorais and Paige,
2000).
2) The meta-igneous rocks and paragneisses of the Massabesic Gneiss Complex, a peri-Gondwanan terrane exposed in southern New Hampshire, are being examined to determine their tectonic setting and evolution and the relationship of the Massabesic with Avalon of southeastern New England. The role of the Massabesic Gneiss Complex in the Acadian and Alleghanian orogenies in New England is also being investigated (Dorais et al., 2001).
3) The method of emplacement and the pre-emplacement, intratelluric history of the Winnipesaukee pluton (central NH) is being investigated to evaluate the association of syntectonic magmatism with the Acadian orogeny (Dorais, 2003).
4) A detrital zircon study of the Carrabassett Formation of Maine is being conducted to determine the provenance of these sediments in order to identify the outboard terrane that collided with the Laurentian margin to produce the Acadian Orogeny in New England (Dorais et al., submitted).
5) The origin of the White Mountain Magma Series, primarily the petrogenesis of silica-undersaturated and silica-oversaturated syenites of the Red Hill complex, New Hampshire (Dorais and Askren, 1998; Dorais and MacRae, 1994; Dorais, 1993; Dorais and Floss, 1992; Dorais, 1990).
6) Provenancing of Greek Bronze Age ceramics. Electron microprobe analyses of the mineralogy of volcanic rock fragments in ceramics are being compared with potential source materials in the Aegean arc. Field work has been conducted at the volcanic centers of Aegina, Methana, and Poros of the Saronic Gulf and Milos in the Aegean Sea (Dorais et al., 2004; Dorais and Shriner, 2002a, 2002b; Shriner and Dorais, 1999).
Selected Research Publications
Dorais, M.J., Nelson, W.R., and Tubrett, M.N. (Submitted) What caused the Acadian orogeny, New England Appalachians? A provenance study of the Carrabassett Formation, Central Maine Basin. Journal of Geology.
Dorais, M.J., Workman, J., and Aggarwal, J., (Submitted) The petrogenesis of the Highlandcroft and Oliverian plutonic suites, New Hampshire: Implications for the structure of the Taconic orogen. American Journal of Science.
Dorais, M.J., and Hart, G., (2006) A metallurgical provenance study of the Marcus Herennius military diploma. BYU Studies, 45, 77-87.
Dorais, M.J., Harper, M., Larson, S., Nugroho, H., Richardson, P., and Roosmawati, N., (2005) A comparison of eastern North America and Coastal New England magma suites: Implications for subcontinental mantle evolution and the broad terrane hypothesis. Canadian Journal of Earth Sciences, 42, 1571-1587.
Clarke, D.B., Dorais, M.J., Barbarin, B., Barker, D., Cesare, B., Clarke, G., El Baghdadi, M., Erdmann, S., Forster, H-J., Gaeta, M., C.L., Gottesmann, B., Jamieson, R.A., Kontak, D.J., Koller, F., Leal Gomes, C., London, D., Morgan, G.B. VI, Neves, L.J.P.F., Pattison, D.R.M., Pereira, A.J.S.C., Pichavant, M., Rapela, C.W., Renno, A., Richards, S., Roberts, M., Rottura, A., Saavedra, J., Sial, A.N., Toselli, A.J., Ugidos, J.M., Uher, P., Villaseca, C., Visona, D., Whitney, D.L., Williamson, B., and Woodard, H., 2005. Occurrence and origin of andalusite in peraluminous felsic igneous rocks. Journal of Petrology, 46, 441-472.
Galliske, M.A., Lira, R., and Dorais, M.J., 2004. Low pressure differentiation of melamephelinite and the origin of ijolite pegmatites at La Madera, Cordoba, Argentina. Canadian Mineralogist, 42, 1799-1823.
Dorais, M.J., Lindblom, M., and Shriner, C.M., 2004. Evidence for a single clay/temper source for the manufacture of middle and late Helladic Aeginetan pottery from Asine, Greece. Geoarchaeology, 19, 657-684.
Dorais, M.J., 2003. The petrogenesis and emplacement of the New Hampshire plutonic suite. American Journal of Science, 303, 447-487.
Aleinikoff, J.N., Wintsch, R.P., Fanning, C.M., and Dorais, M.J., (2002) U-Pb geochronology of zircon and polygenetic titanite from the Glastonbury Complex, Connecticut, USA: An integrated SEM, EMPA, TIMS, and SHRIMP study. Chemical Geology, 188, 125-147.
Dorais, M.J., and Shriner, C.M., 2002a. A comparative electron microprobe study of "Aeginetan" wares with potential raw material sources from Aegina, Methana, and Poros. Geoarchaeology, 17, 555-577.
Dorais, M.J., and Shriner, C.M., 2002b. An electron microprobe study of P645/T390: Evidence for an Early Helladic III Lerna - Aegina connection. Geoarchaeology, 17, 755-778.
Dorais, M.J., Wintsch, R.P. Becker, H., and Kunk, M.J., 2001. The Massabesic Gneiss complex, New Hampshire: A study of a portion of the Avalon terrane. American Journal of Science, 301, 657-682
Watts, B.G., Dorais, M.J., and Wintsch, R.P., 2000. Geochemistry of early Devonian calcalkaline plutons in the Merrimack trough: Implications for mid-Paleozoic terrane relationships in the New England Appalachians. Atlantic Geology, 36, 79-102.
Dorais, M.J., and Paige, M.L., 2000. Regional mineralogical and isotopic variations in the posttectonic Acadian plutons of New Hampshire, Maine, and Vermont: Implications for magma sources and Greenville-Avalon basement terrane boundaries. Geological Society of America Bulletin.112, 900-914.
Barth, A.P. and Dorais, M.J., 2000. Magmatic anhydrite in cordilleran granitic rocks: First occurance and potential petrologic consequences. American Mineralogist, 85, 430-435.
Shriner, C., and Dorais, M.J., 1999. A comparative electron microprobe study of Lerna III and IV archaeological ceramics and local clay-rich sediments. Archaeometry, 41, 25-49.
Dorais, M.J., and Askren, D.R., 1998. Mafic enclaves in the Nepheline Sodalite Syenite, Red Hill magmas. Trends in Mineralogy,Vol.2, 19-37.
Dorais, M.J., Lira, R., Chen, Y, and Tingey, D., 1997. Origin of biotite-apatite-rich enclaves, Achala batholith, Argentina. Contributions to Mineral and Petrology, 130, 31-46.
Cullers, R.L., Dorais, M.J., Berendsen, P., and Chaudhuri, S., (1996). The mineralogy and petrology of subsurface lamproites, late Cretaceous age, southeastern Kansas, USA. Lithos, 38, 185-206.
Brophy, J.G., Dorais, M.J.,Donnelly-Nolan, J., and Singer, B.S.,1996. Plagioclase zonation styles in hornblende gabbro inclusions form Little Grass Mountain, Medicine Lake volcano, California: Implications for fractionation mechanisms and the formation of composition gaps. Contribution to Mineralogy and Petrology, 126, 121-136.
Dorais, M.J., and MacRae, N.D., 1994. Amphibole zoning in the Garland Peak Syenite, Red Hill complex, New Hampshire: Camptonitic parental magmas and differentiation to silica-oversaturated syenites. Contributions to Mineralogy and Petrology, 117:76-86.
Dorais, M.J., 1993. Pyroxene in enclaves and syenites of the Red Hill complex, New Hampshire: An ion and electron microprobe study. Contributions to Mineralogy and Petrology, 114, 130-138.
Wintsch, R.P., Sutter, J.F., Kunk, M.J., Aleinikoff, J.N., Dorais, M.J., 1992. Contrasting P-T-t paths: Thermochronologic evidence for a late Paleozoic accretion of the Avalon terrane in the New England Appalachians. Tectonics, 11, 672-687.
Dorais, M.J., and Floss, C., 1992. An ion and electron microprobe study of the mineralogy of enclaves and host syenites of the Red Hill complex, New Hampshire, U.S.A. Journal of Petrology, 33, 1193-1218.
Dorais, M.J., Whitney, J.A., and Stormer, J.C. Jr., 1991. Mineralogical constraints on the petrogenesis of trachytic inclusions, Carpenter Ridge Tuff, central San Juan volcanic field, Colorado. Contributions to Mineralogy and Petrology, 107, 219-230.
Dorais, M.J., 1990. Compositional variations in amphiboles and pyroxenes of the Belknap Mountains complex, New Hampshire: Evidence for the origin of silica saturated alkaline rocks. American Mineralogist, 75, 1092-1105.
Dorais, M.J., Whitney, J.A., and Roden, M.F., 1990. The origin of mafic enclaves in the Dinkey Creek pluton, central Sierra Nevada batholith. Journal of Petrology, 31, 853-881.
Whitney, J.A., Dorais, M.J., Stormer, J.C. Jr., Kline, S.W. and Matte, D.J., 1988. Magmatic conditions and development of chemical zonation in the Carpenter Ridge Tuff, Central San Juan Volcanic Field, Colorado. American Journal of Science, 288-A, 16-44.
Students
Teresa Rice (M.S. Thesis, Advisor)
Wendy Nelson (M.S. Thesis, Advisor)
Elizabeth Balls (M.S. Thesis, Member)
David Neilson (M.S. Thesis, Member)
Eric Robek (M.S. Thesis, Member)
Karin Tobler Ross (M.S. Thesis, Member)
Jason Aase (M.S. Thesis, 2004, Member)
Paul Richardson (M.S. Thesis, 2004, Member)
Elizabeth Yoke (M.S. Thesis, 2004, Member)
Matt Harper (M.S. Thesis, 2004, Member)
William Stavast (M.S., Thesis, 2002, Member)
Emily Bartlett (M.S. Thesis, 2002, Member)
Brandon Watts (M.S. Thesis, 1999, Advisor)
Chris Amato (M.S. Thesis, 1998, Member)
Priya Ganguli (Senior Thesis, 1995, Member)
Michael Stewart (M.S. Thesis, 1994, Member)
Rebecca Robinson (Senior Honor Thesis, 1993, Advisor)