Elizabeth A. Johnson
James Madison University
Department of Geology and Environmental Science

Johnson, E.A. (2003) Water in Nominally Anhydrous Crustal Minerals. Ph.D. dissertation, California Institute of Technology.
download dissertation here and data files here

Publications
Bold indicates student.

Mazza, S., Gazel, E., Johnson, E.A., McAleer, R., Kunk, M., Spotila, J., Bizimis, M., and Coleman, D. (2014) Volcanoes of the passive margin: the youngest magmatic event in Eastern North America. Geology. Published online April 10, 2014, doi: 10.1130/G35407.1.

Haynes, J.T., Johnson, E.A., and Whitmeyer, S.J. (2014) Active features along a “passive” margin: The intriguing interplay between Silurian-Devonian stratigraphy, Alleghanian deformation, and Eocene magmatism of Highland and Bath Counties, Virginia. In Bailey, C.M., and Coiner, L.V., eds., Elevating Geoscience in the Southeastern United States: New Ideas about Old Terranes: Field Guides for the GSA Southeastern Section Meeting, Blacksburg, Virginia, 2014: Geological Society of America Field Guide 35, p. 1-40, doi:10.1130/2014.0035(01).

Johnson, E.A. and Rossman, G.R. (2013) The diffusion behavior of hydrogen in plagioclase feldspar at 800-1000°C: Implications for re-equilibration of OH in volcanic phenocrysts.  American Mineralogist, 98, 1179-1787. Link to full text article is here.

Johnson, E.A., Kiracofe, Z.A., Haynes J.T., and Nashimoto, K. (2013) The origin of sandstone xenoliths in the Mole Hill basalt, Rockingham County, Virginia: Implications for magma ascent and crustal structure in the western Shenandoah Valley. Southeastern Geology, 49, 95-118.

Colasanti, C.V., Johnson, E.A. and Manning, C.E. (2011) An experimental study of OH solubility in rutile at 500-900 ° C, 0.5-2 GPa, and a range of oxygen fugacities. American Mineralogist, 96, 1291-1299.

Johnson, E.A., Sutherland, C.E., Logan, M.A.V., Samson, S. and Feely, M. (2011) Petrogenesis of a felsic porphyry dike and constraints on timing of motion along the Coolin Fault at Ben Levy, County Galway. Irish Journal of Earth Sciences, 29, 1-13.

Johnson, E.A. (2006) Water in nominally anhydrous crustal minerals: speciation, concentration, and geologic significance. In H. Keppler and J.R. Smith (Eds.) Water in Nominally Anhydrous Minerals. Reviews in Mineralogy and Geochemistry, 62, 117-154.

Johnson, E.A. and Post, J.E. (2006) Water in the interlayer of the Mn oxide birnessite: importance in cation exchange and structural stability. American Mineralogist, 91, 609-618.

Johnson, E.A. and Rossman, G.R. (2004) An infrared and nuclear magnetic resonance study of strong hydrogen bonding in ussingite, NaAlSi3O8 (NaOH). Physics and Chemistry of Minerals, 31, 115-121.

Johnson, E.A. and Rossman, G.R. (2004) A survey of hydrous species and concentrations in igneous feldspars.  American Mineralogist, 89, 586-599.

King, J.L., Johnson, E.A., and Post, J.E. (2003) A comparison of three historic blue diamonds. Gems and Gemology, 39(4), 322-325.

Johnson, E.A. and Rossman, G.R. (2003) The concentration and speciation of hydrogen in feldspars using FTIR and 1 H MAS NMR spectroscopy. American Mineralogist, 88, 901-911.

Johnson, E.A., Rossman, G.R., Dyar, M.D., and Valley, J.W. (2002) Correlation between OH concentration and oxygen isotope diffusion rate in diopsides from the Adirondack Mountains, New York . American Mineralogist, 87, 899-908.

Heymann, D., Yancey, T.E., Wolbach, W.S., Thiemens, M.H., Johnson, E.A., Roach, D., and Moecker, S. (1998) Geochemical markers of the Cretaceous-Tertiary boundary event at Brazos River, Texas , USA . Geochimica et Cosmochimica Acta , 62, 173-181.

McElvany, S.W., Johnson, E.A., and Holliman, C.L. (1995) Mass spectrometric characterization of fullerenes, oxides, and odd-numbered carbon clusters. In K.M. Kadish and R.S. Ruoff (eds.) Recent Advances in the Chemistry and Physics of Fullerenes and Related Materials , vol.2. Electrochemical Society, 1425-1436.

Shada, J.M., Johnson, E.A., Whitmeyer, S.J., and Cohick, B. (2014) Structural controls on the method of Eocene magmatic intrusion in Blue Grass Valley, Highland County, Virginia. Geological Society of America Abstracts with Programs. Vol. 46, No. 3, p.30, Abstract 19-7.

Mazza, S.E., Gazel, E., Johnson, E.A., Kunk, M.J., McAleer, R.J., Bizimis, M., and Coleman, D.S. (2014) Volcanoes of the passive margin: the youngest magmatic event in Eastern North America. Geological Society of America Abstracts with Programs. Vol. 46, No. 3, p.20, Abstract 11-10.

Helsley, J.T., Johnson, E.A., Bodnar, R.J., Farley, C., and Schwartz, B.F. (2013) Ultrahigh temperatures recorded in lower crustal xenoliths from the Shenandoah Valley, VA.  Geological Society of America Abstracts with Programs, 355-15.

Rossi, N.P., Johnson, E.A., and Schwartz, B.F. (2013) U-Pb geochronology of Grenvillian and Late Jurassic lower crustal xenoliths in the Shenandoah Valley, VA. Geological Society of America Abstracts with Programs, 355-16.

Bulas, M. and Johnson, E.A. (2012) Timing and eruption mechanism of felsic Eocene dikes in the Valley and Ridge Province of VA and WV. Geological Society of America Abstracts with Programs, 92-91.

Guzmán, D. and Johnson, E.A. (2012) Evidence for a two-stage eruption at Trimble Knob, an Eocene volcanic plug in Highland County, VA. Geological Society of America Abstracts with Programs, 92-92.

Jones, D.J., Johnson, E.A. and Belkin, H.E. (2012) Depth and temperature of the lithospheric mantle beneath Highland County, VA. Geological Society of America Abstracts with Programs, 92-94.

O’Reilly, S.K., Johnson, E.A., Belkin, H.E., Gazel, E., Fedele, L. and Bodnar, R. (2012) Melting the Eocene mantle under Mole Hill, VA: LA-ICPMS analysis of melt inclusions in olivine xenocrysts. Geological Society of America Abstracts with Programs, 92-93.

Johnson, E.A., O’Reilly, S.K. and Pyle, E.J. (2012) A petrographic and geochemical database for countertops as a teaching resource. Geological Society of America Abstracts with Programs, 242-8.

Kiracofe, Z.A., Johnson, E.A., and Haynes, J.T. (2011) The origin of sandstone xenoliths at Mole Hill, an Eocene volcanic neck near Harrisonburg, VA. Geological Society of America Abstracts with Programs, 39-24.

Sacco, B., Johnson, E.A., and Belkin, H.E. (2011) Depth and temperature of the mantle beneath Mole Hill, an Eocene basalt near Harrisonburg, VA. Geological Society of America Abstracts with Programs, 39-18.

Stempniewicz, V.A. and Johnson, E.A. (2011) Hydration profiles in clinopyroxene mantle xenocrysts from the Eocene Mole Hill basalt, Rockingham County, VA. Geological Society of America Abstracts with Programs, 39-22.

Johnson, E.A. and Beard, J. (2010) Geochemical and Petrologic Constraints on the Source of Eocene Volcanism at Mole Hill, Rockingham County, VA. Abstract V11B-2266 presented at 2010 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec.

Hartshorn, T., Vallotton, J.D., Johnson, E.A., Davies, K.W., Ressler, D.J. and King, C.C. (2010) A pedological approach to landmine aging. Geological Society of America Abstracts with Programs, 192-14.

Shepherd, H.V., Johnson, E.A. and Logan, M.A.V. (2010) Zr-in-rutile thermometry of a ruby-bearing metamorphic rock, Cascade Canyon, San Bernardino County, CA . Geological Society of America Northeastern Section (45 th annual) and Southeastern Section (59 th annual) Joint Meeting, 65-24.

Johnson, E.A. (2009) Geology of Skyline Drive: an intergenerational field course in Shenandoah National Park. Geological Society of America Abstracts with Programs, 208-15.

Johnson, E.A., Colasanti, C.V., and Manning, C.E. (2009) The effect of cation substitution on hydrogen solubility in rutile. Geological Society of America Abstracts with Programs , 132-11.

Sutherland C., Johnson, E.A., Logan, M.A.V., Samson, S. and Feely, M. (2009) Age and emplacement temperature of a felsite porphyry dike near Ballard, County Galway, Ireland . Geological Society of America Abstracts with Programs, 258- 16.

Eaton, L.S., Baedke, S.J., Haynes, J.T., Johnson, E.A., Leslie, S.A., Pyle, E.J., Whitmeyer, S.J. and Whitmeyer, S.J. (2009) Dualing tracks: success using a two- track option in the James Madison University Ireland Field Course. Geological Society of America Abstracts with Programs, 208-6.

Gehman J.R. and Johnson, E.A. (2008) A Long, Long Time Ago: Student Perceptions of Geologic Time Using a 45.6-foot-long Timeline, Eos Trans. AGU, 89 (53), Fall Meet. Suppl., Abstract ED31A-0606.

Johnson, E.A., Logan M.V., and Thompson A.L. (2008) Application of an OH-in-rutile Oxybarometer to the Roseland Anorthosite, Virginia, Eos Trans. AGU, 89 (53), Fall Meet. Suppl., Abstract V41D-2116.

Johnson, E.A., Means, B., Bordwell, K. and Post, J.E. (2008) Layered manganese oxide stream deposits in Spring Branch, TN. Geological Society of America Abstracts with Programs , 132-11.

Post, J.E., Heaney, P.J, Johnson, E.A. (2008) Structures and behaviors of calcium-rich phyllomanganates and related phases, Chemical & Engineering News.

Colasanti, C.V., Johnson, E.A., Manning, C.E. (2007) Hydrogen solubility in synthetic rutile. Geochimica et Cosmochimica Acta, 71(15s), A181.

Johnson E.A., Colasanti, C.V., Manning, C.E. (2006) Experimental calibration of an OH-in-rutile oxybarometer, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract V41D-1761.

Johnson, E.A., Manning, C.E., Antignano, A. and Tropper, P. (2005) OH in rutile: an oxygen and water barometer. Eos Trans. AGU, 86 (52), Fall Meet. Suppl., Abstract V41A-1420.

Johnson, E.A. (2005) Magmatic water contents recorded by hydroxyl concentrations in plagioclase phenocrysts from Mount St. Helens, 1980-1981. Geochimica et Cosmochimica Acta, 69(10s), A743.

Johnson, E.A. (2004) A record of magmatic water content preserved in hydroxyl concentrations of plagioclase phenocrysts from the 1980-1981 eruption sequence of Mount St. Helens. Eos Trans. AGU , 85(47) , Fall Meet. Suppl., Abstract V43D-1445.

Johnson, E.A. and Post, J.E. (2004) Water in the interlayer region of birnessite: an infrared spectroscopic study. Geochimica et Cosmochimica Acta, 68(11s), A33.

Heaney, P., Post, J.E., McKeown, D.A. and Johnson, E.A. (2004) An in situ study of the I2/a to Imab phase transition in SiO2 moganite using hard mode Raman spectroscopy. Geological Society of America - Abstracts with Programs 36 (5), 113.

Johnson, E.A. and Rossman, G.R. (2003) Determination of hydrogen in feldspars by IR and NMR spectroscopy. LERM 2003, International Symposium on Light Elements in Rock-forming Minerals, Book of Abstracts, 37.

Johnson, E.A. and Rossman, G.R. (2002) The thermal stability of hydrogen in feldspars. Geochimica et Cosmochimica Acta, 66, A369 (abstr.).

Johnson, E.A. and Rossman, G.R. (2002) An FTIR calibration for structural hydrogen in feldspars using 1 H MAS NMR. Eos Trans. AGU, 83(19), Spring Meet. Suppl., Abstract M51B-02.

Johnson, E.A. and Rossman, G.R. (2001) The concentration and speciation of hydrogen in feldspars from 1 H MAS NMR and FTIR spectroscopy. In Eleventh Annual V. M. Goldschmidt Conference, Abstract #3202. LPI Contribution No.1088, Lunar and Planetary Institute, Houston (CD-ROM).

Johnson, E.A., Rossman, G.R., and Valley, J.W. (2000) Correlation between OH content and oxygen isotope diffusion rate in diopsides from the Adirondacks Mountains , New York .  Geological Society of America - Abstracts with Programs, 32 (7), 81.