NEWS (April 2021): New publication by Rebecca deGraffenried out! Learn about modeling diffusion in melt embayments here.







Publications in international journals
* = students advised

[43] *Mourey, A.J., Shea, T., Lynn, K.J., Lerner, A.H., Lambart, S., Costa, F., Oalmann, J., Lee, R.L., Gansecki, C., (2022) Trace elements in olivine fingerprint the source of 2018 magmas and shed light on explosive-effusive eruption cycles at Kīlauea Volcano. Earth and Planetary Science Letters 595, 117769. download pdf

[42] Crozier, J., Tramontano, S., Forte, P., Oliva, S.J.C., Gonnermann, H.M., Lev, E., Manga, M., Myers, M., Rader, E., Ruprecht, P., Tuffen, H., Paisley, R., Houghton, B.F., Shea, T., Schipper, C.I., Castro, J.M., (2022) Outgassing through magmatic fractures enables effusive eruption of silicic magma. Journal of Volcanology and Geothermal Research 430:107617. doi: 10.1016/j.jvolgeores.2022.107617 download pdf

[41] Saalfeld M., Myers, M., *deGraffenried, R.D., Shea T, Walkens, C., (2022) On the rise: using reentrants to extract magma ascent rates in the Bandelier Tuff caldera complex, New Mexico, USA. Bulletin of Volcanology, 84(1), 4. download pdf

[40] *Nelson, W., Hammer, J.E., Shea T, Taylor, G.J., Hellebrand, E.W.G, (2021) Chemical heterogeneities in troctolite 76535: rapid cooling in the slowest cooled Apollo sample. Nature Communications, 12(1), 7054. download pdf

[39] Giachetti, T., Trafton, K.R., Wiejaczka, J., Gardner, J.E., Watkins, J.M., Shea T, Wright, H.M.N., (2021) The products of primary magma fragmentation finally revealed by pumice agglomerates. Geology, 49(11), 1307-1311. download pdf

[38] *deGraffenried, R., Hammer, J., Dietterich, H., Perroy, R., Patrick, M., Shea, T. (2021) Evaluating lava flow propagation models with a case study from the 2018 eruption of Kīlauea Volcano, Hawai'i. Bulletin of Volcanology, 83:65. download pdf

[37] Lerner, A.H., Wallace, P.J., Shea, T., *Mourey, A., Kelly, P., Nadeau, P., Elias, T., Kern, C., Clor, L.E., Gansecki, C., Lee, R.L., Moore, L.R., Werner, C.A. (2021) The petrologic and degassing behavior of sulfur and other magmatic volatiles from the 2018 eruption of Kīlauea, Hawaiʻi: melt concentrations, magma storage depths, and magma recycling. Bulletin of Volcanology 83:43. download pdf

[36] *deGraffenried, R., Shea, T. (2021) Using Volatile Element Concentration Profiles in Crystal‐Hosted Melt Embayments to Estimate Magma Decompression Rate: Assumptions and Inherited Errors. Geochemistry, Geophysics, Geosystems, 10.1029/2021GC009672 download pdf

[35] Wallace, P.J., Plank, T., Bodnar, R.J., Gaetani, G.A., Shea, T. (2021) Olivine-Hosted Melt Inclusions: A Microscopic Perspective on a Complex Magmatic World. Annual Reviews Earth and Planetary Sciences, 49, 10.1146/annurev-earth-082420-060506. download pdf

[34] Patrick, M., Johanson, I., Shea, T. (2020) The historic events at Kilauea Volcano in 2018: summit collapse, rift zone eruption, and M-w 6.9 earthquake: preface to the special issue. Bulletin of Volcanology, 82:46, doi: 10.1007/s00445-020-01377-5. download pdf

[33] Gordeychik, B., Churikova, T., Shea, T., Kronz, A., Simakin, A., Worner, G. (2020) Fo and Ni Relations in Olivine Differentiate between Crystallization and Diffusion Trends. Journal of Petrology, 60:9, doi: 10.1093/petrology/egaa083 download pdf

[32] Colombier, M., Shea, T., Burgisser, A., Druitt, T.H., Gurioli, L., Muller, D., Caceres, F., Hess, K.-U., Boivin, P., Miallier, D., Dingwell, D.B. (2020) Rheological change and degassing during a trachytic Vulcanian eruption at Kilian Volcano, Chaîne des Puys, France. Bulletin of Volcanology, 82:78, doi: 10.1007/s00445-020-01420-5 download pdf

[31] *Lynn KJ, Garcia MO, Shea T, (2020) Phosphorous obfuscates lithium geospeedometry in olivine. Frontiers in Earth Science, doi: 10.3389/feart.2020.00135.

[30] Costa F, Shea T, Ubide T (2020) Diffusion chronometry and the timescales of magmatic processes. Nature Reviews – Earth and the Environment. doi : 10.1038/s43017-020-0038-x download pdf

[29] Gansecki C, Lee RL, Shea T, Lundblad S, Hon K, Parcheta C (2019) The tangled tale of Kīlauea’s 2018 eruption as told by geochemical monitoring. Science, 366. 10.1126/science.aaz0147. download pdf

[28] *Mourey AJ, Shea T (2019) Forming olivine phenocrysts in basalt: a 3D characterization of growth rates in laboratory experiments. Frontiers in Earth Sciences, 7 doi: 10.3389/feart.2019.00300 . download pdf

[27] Giachetti T, Hudak MR, Shea T, Bindeman I, Hoxsie EC (2019) D/H ratios and H2O contents record degassing and rehydration history of rhyolitic magma and pyroclasts. Earth and Planetary Science Letters. doi: 10.1016/j.epsl.2019.115909 download pdf

[26] Shea T, Hammer JE, Hellebrand E, *Mourey A, Costa F, First E, *Lynn KJ, Melnik O, (2019) Phosphorus and aluminum zoning in olivine: contrasting behavior of two nominally incompatible elements. Contributions to Mineralogy and Petrology. 174:85. download pdf

Owen J, Shea T, Tuffen H, (2019) Basalt, Unveiling Fluid-filled Fractures, Inducing Sediment Intra-void Transport, Ephemerally: examples from Katla 1918. Journal of Volcanology and Geothermal Research. 369:121-144. download pdf

*Lynn KJ, Shea T, Garcia MO, Costa F, Norman MD (2018) Lithium diffusion in olivine records priming of explosive basaltic eruptions, Earth and Planetary Science Letters, 500:127-135. download pdf

Mitchell SJ, McIntosh IM, Houghton BF, Carey RJ, Shea T (2018) Dynamics of a powerful deep submarine eruption recorded in H2O contents and speciation in rhyolitic glass: The 2012 Havre eruption, Earth and Planetary Science Letters, 494:135:147. download pdf

[22] *Lynn KJ, Garcia MO, Shea T, Costa F, Swanson DA (2017) Timescales of mixing and storage for Keanakako'i Tephra magmas (1500-1820 C.E.), Kilauea Volcano, Hawai'i, Contributions to Mineralogy and Petrology. 172:76. download pdf

[21] Shea T (2017) Bubble nucleation in magmas: a dominantly heterogeneous process? Journal of Volcanology and Geothermal Research. 343:155-170. download pdf

[20] Shea T, *Leonhardi T, Giachetti T, Larsen J, Lindoo A, Sinton, J, Parson E, (2017) Dynamics of an unusual cone-building trachyte eruption at Puʻu Waʻawaʻa, Hualālai, Hawaii, Bulletin of Volcanology. 79:2. download pdf

[19] Colombier M, Gurioli L, Druitt TH, Shea T, Boivin P, Miallier D, (2017) Textural evolution of magma during the 9.4 ka trachytic explosive eruption at Kilian Volcano, Chaîne des Puys, France, 2015, Bulletin of Volcanology. 79:17. download pdf

[18] *Lynn KJ, Shea T, Garcia MO, (2017) Nickel variability in Hawaiian olivine: Evaluating the relative contributions from mantle and crustal processes, online first, American Mineralogist. DOI 10.2138/am-2017-5763. download pdf

[17] Graham DW, Michael PJ, Shea T, (2016) Extreme Incompatibility of Helium During Mantle Melting: Evidence from Undegassed Mid-Ocean Ridge Basalts. Earth and Planetary Science Letters. 454:192-202. download pdf

[16] Shea T, Owen J., (2016) Discovery of a trachyte ignimbrite sequence at Hualalaī, Hawaii, Bulletin of Volcanology. 78, 34. download pdf

[15] Shea T, *Lynn, K.J., Garcia, M.O., (2015) Cracking the olivine zoning code: Distinguishing between crystal growth and diffusion, Geology, 43:935-938. download pdf

[14] Shea T, Costa, F., Krimer D., Hammer J.E, (2015) Accuracy and precision of timescales retrieved from diffusion modeling in olivine: a 3D perspective, American Mineralogist, 100:2026-2042. download pdf

[13] Giachetti T, Gonnermann H, Gardner, J, Shea T, Gouldstone A (2015) Discriminating secondary from magmatic water in rhyolitic matrix-glass of volcanic pyroclasts using thermogravimetric analysis. Geochimica and Cosmochimica Acta, 148:457-476. download pdf

[12] Shea T, Gurioli L, Hellebrand E, Tuffen, H (2014) Conduit to localized scale degassing during Plinian eruptions: insights from major element and volatile (Cl and H2O) analyses within AD79 Vesuvius pumice. Journal of Petrology, 55:315-344. download pdf

[11] Shea T, Hammer JE, First E (2013) Pumice balloons or bombs? Nature Geoscience (Corresp.), 6:802-803. download pdf

[10] Shea T, Hammer JE (2013) Rates of oxidation in CSPV experiments involving H2O-bearing mafic magmas. American Mineralogist, 98:1285-1296. download pdf

[9] Shea T, Hammer JE (2013) Kinetics of cooling- and decompression-induced crystallization in hydrous mafic-intermediate magma. Journal of Volcanology and Geothermal Research, 260:127-145. download pdf

[8] Shea T, Gurioli L, Houghton, BF (2012) Transitions between fall phases and pyroclastic density currents during the AD 79 eruption at Vesuvius: building a transient conduit model from the textural and volatile record. Bulletin of Volcanology, 74:2363-2381. download pdf

[7] Shea T
, Gurioli L, Houghton, BF, Cioni, R, Cashman KV (2011) Column collapse and generation of pyroclastic density currents during the AD 79 eruption of Vesuvius: the role of pyroclast density. Geology, 39, 695-698. download pdf

[6] Shea T, Houghton BF, Gurioli L, Cashman KV, Hammer JE, Hobden B (2010) Textural investigations of vesicles in volcanic rocks : an integrated methodology. Journal of Volcanology and Geothermal Research, 190, 271-289. download pdf

[5] Shea T, v. Wyk de Vries (2010) Collapsing volcanoes: the sleeping giants’ threat. Geology Today, 26, 2, 72-77. download pdf

[4] Shea T, Gurioli L, Larsen JF, Houghton BF (2010) Linking experimental and natural vesicle textures in Vesuvius 79AD white pumice. Journal of Volcanology and Geothermal Research, 192, 69-84. download pdf

[3] Shea T, Larsen JF, Gurioli L, Houghton BF, Hammer JE, (2009), Leucite crystals : surviving witnesses of magma storage conditions prior to the 79AD eruption at Vesuvius, Italy. Earth and Planetary Science Letters, 281, 88-98. download pdf

[2] Shea T, van Wyk de Vries B, Pilato M, (2008), Emplacement mechanisms of contrasting debris avalanches at Volcan Mombacho (Nicaragua), provided by structural and facies analysis. Bulletin of Volcanology, 70, 899-921. download pdf

[1] Shea T, van wyk de Vries, (2008), Structural analysis and analogue modelling of the kinematics and dynamics of large-scale rockslide-avalanches. Geosphere, 4, 657-686. download pdf