Won Joon Song

Geodynamics | SEM laboratory | TESA Toolbox

Faculty Mentor: Scott Johnson

Professional Preparation:

  • Ph.D., Earth and Climate Sciences, University of Maine, USA (2018)
  • M.S., Geology, Korea University, South Korea
  • B.S., Earth and Environmental Sciences, Korea University, South Korea

Research Interests/Professional Specialties:

My research focuses on the structure, microstructure, mechanics, and rheology of exhumed earthquake faults and how different rock structures and microstructures influence the velocities of seismic waves. Recently, I am involved in developing numerical tools to analyse thermoelastic properties of heterogeneous and polycrystalline materials. I typically integrate microanalytical techniques (e.g., SEM, EBSD), numerical models, and field observations in my projects.

I also co-manage our SEM laboratory, which consists of a Tescan Vega II XMU SEM with secondary electron, backscattered electron, and cathodoluminescence detectors, EDAX EDS and EBSD systems, and a cryo-stage.

Publications

Peer-Reviewed Articles:

  • Song, B. R., Song, W. J., Johnson, S. E., Gerbi, C. C., and Vel, S. S. (2021). Elastic contrast, rupture directivity, and damage asymmetry in an anisotropic bimaterial strike-slip fault at middle crustal depths. Journal of Geophysical Research: Solid Earth, in review.
  • Walters, J. B., Cruz-Uribe, A. M., Song, W. J., Gerbi, C., and Biela, K. (2021). Strengths and limitations of in situ U-Pb titanite petrochronology in polymetamorphic rocks: An example from western Maine, USA. Journal of Metamorphic Geology, in revision.
  • Johnson, S. E., Song, W. J., Vel, S. S., Song, B. R., and Gerbi, C. C. (2021). Energy partitioning, dynamic fragmentation, and off-fault damage in the earthquake source volume. Journal of Geophysical Research: Solid Earth 126, e2021JB022616. https://doi.org/10.1029/2021JB022616
  • Anderson, E. K., Song, W. J., Johnson, S. E., and Cruz-Uribe, A. M. (2020). Mica kink-band geometry as an indicator of coseismic dynamic loading. Earth and Planetary Science Letters 567, 117000. https://doi.org/10.1016/j.epsl.2021.117000
  • Johnson, S. E., Song, W. J., Cook, A. C., Vel, S. S., and Gerbi, C. C. (2020). Quartz α↔β phase transition: does it drive damage and reaction in continental crust? Earth and Planetary Science Letters 553, 116622. https://doi.org/10.1016/j.epsl.2020.116622
  • Song, W. J., Johnson, S. E., and Gerbi, C. C. (2020). Quartz fluid inclusion abundance and off-fault damage in a deeply exhumed, strike-slip, seismogenic fault. Journal of Structural Geology 139, 104118. https://doi.org/10.1016/j.jsg.2020.104118
  • Song, B. R., Johnson, S. E., Song, W. J., Gerbi, C. C., and Yates, M. G. (2020). Coseismic damage runs deep in continental strike-slip faults. Earth and Planetary Science Letters 539, 116226. https://doi.org/10.1016/j.epsl.2020.116226
  • Okaya, D., Vel., S. S., Song, W. J., and Johnson, S. E. (2019). Modification of crustal seismic anisotropy by geological structures (“structural geometric anisotropy”). Geosphere 15, 146-170. https://doi.org/10.1130/GES01655.1
  • Price, N. A., Song, W. J., Johnson, S. E., Gerbi, C. C., Beane, R. J., and West, D. P. Jr. (2016). Recrystallization fabrics of sheared quartz veins with a strong pre-existing crystallographic preferred orientation from a seismogenic shear zone. Tectonophysics 682, 214-236. https://doi.org/10.1016/j.tecto.2016.05.030
  • Song, W. J. and Ree, J.-H. (2007). Effect of mica on the grain size of dynamically recrystallized quartz in a quartz-muscovite mylonite. Journal of Structural Geology 29, 1872-1881. https://doi.org/10.1016/j.jsg.2007.09.011

Peer-Reviewed Conference Abstracts:

  • Walters, J., Cruz-Uribe, A., Song, W.J., Stone, J., Brooks, H., and Biela, K., 2021. Dating polymetamorphism using titanite: Linking trace elements, textures, and ages. European Geosciences Union General Assembly, Geophysical Research Abstracts, Vol. 23, EGU21-13449.
  • Johnson, S.E., Gerbi, C.C., Song, W.J., and Vel, S.S., 2019. The mechanical, rheological and mineralogical impact of microscale stress heterogeneities. American Geophysical Union Fall Meeting, Abstract T43D-0463.
  • Johnson, S.E., Song, W.J., Gerbi, C.C., and Vel, S.S., 2019. Grain-scale elastic energy drives rock fabric development and rheological evolution. Geological Society of America Annual Meeting, Paper No. 142-9, doi: 10.1130/abs/2019AM-336460.
  • Johnson, S.E., Song, W.J., Cook, A.C., Vel, S.S., and Song, B.R., 2019. Grain-scale elastic energy, rock fabric development and rheological evolution. Geological Society of America Northeastern Section, Paper No. 22-1, doi: 10.1130/abs/2019NE-328054.
  • Song, W.J., Song, B.R., Johnson, S.E., and Gerbe, C.C., 2019. Fault-adjacent damage at the base of the seismogenic zone and implications for crustal rheology. Geological Society of America Northeastern Section, Paper No. 40-7, doi: 10.1130/abs/2019NE-328698.
  • Toy, V.G., Adam, L., Gerbi, C.C., Hellman, R., Johnson, S.E., Kirilova, M., Kluge, E., Lockner, D., Plümper, O., Sauer, K., Song, W.J., and Wirth, R., 2019. Evolution of microporosity and permeability of quartzofeldspathic rocks during changes in crustal conditions and tectonite fabric. European Geosciences Union General Assembly, Geophysical Research Abstracts, Vol. 21, EGU2019-4596.
  • Johnson, S.E., Song, W.J., Cook, A.C., Vel, S.S., and Gerbi, C.C., 2018. Quartz α↔β phase transition drives brittle damage and reaction in viscous continental crust. American Geophysical Union Fall Meeting, Abstract T32B-03.
  • Song, B.R., Johnson, S.E., Song, W.J., Gerbi, C.C., and Yates, M.G., 2018. Coseismic damage runs deep in continental strike-slip faults. American Geophysical Union Fall Meeting, Abstract T21E-0259.
  • Song, W.J., Johnson, S.E., and Gerbi, C.C., 2018. Quartz fluid inclusion abundance and off-fault damage in a deeply exhumed seismogenic fault. American Geophysical Union Fall Meeting, Abstract T21E-0266.
  • Song, W.J., Johnson, S.E., and Gerbi, C.C., 2017. Brittle co-seismic deformation of quartz: Localization near the base of the seismogenic zone. Geological Society of America Abstracts with Programs, Vol. 49, No. 6, doi: 10.1130/abs/2017AM-308304.
  • Gerbi, C.C., Marsh, J.H., Johnson, S.E., Culshaw, N.G., Shulman, D.J., Song, W.J., and Foley, M., 2015. Geological Society of America Abstracts with Programs, Vol. 47, No. 3, p.103.
  • Song, B.R., Johnson, S.E., Song, W.J., and Gerbi, C.C., 2015. Damage microstructures in garnet and feldspar preserve coseismic cycles at mid-crustal depths in an ancient strike-slip fault system in south-central Maine. Geological Society of America Abstracts with Programs, Vol. 47, No. 3, p.134.
  • Johnson, S.E., Song, W.J., Price, N.A., and Gerbi, C.C., 2014. Coseismic damage and strain localization is large displacement, strike-slip fault/shear-zone systems: Observations from near the base of the seismogenic zone. Geological Association of Canada (GAC)-Mineralogical Association of Canada (MAC) Annual Meeting, Abstracts Vol. 37, p.129.
  • Johnson, S.E., Vel, S.S., Cook, A.C., Song, W.J., Gerbi, C.C., and Okaya, D., 2014. ESP toolbox: A computational framework for precise, scale-independent analysis of bulk elastic and seismic properties. American Geophysical Union Fall Meeting, Abstract S23E-06.
  • Song, W.J., Gerbi, C.C., Johnson, S.E., and Vel, S.S., 2014. Effects of shear zone development on seismic anisotropy in the lower Grenvillian crust. American Geophysical Union Fall Meeting, Abstract S21C-4454.
  • Song, W.J., Johnson, S.E., Price, N.A., Song, B.R., Gerbi, C.C., and West, D.P., Jr., 2014. Seismogenic cycles, quartz microstructures and localization at the frictional to viscous transition in an exhumed, large-displacement, seismogenic strike-slip fault. American Geophysical Union Fall Meeting, Abstract T13A-4629.
  • West, D.P., Jr., Pollock, S.G., Song, W.J., Price, N.A., and Johnson, S.E., 2014. The Ray Corner high strain zone of the Norumbega fault system in Maine: A complex history of ductile shear, brittle deformation, and paleoseismicity. American Geophysical Union Fall Meeting, Abstract T13A-4615.
  • Song, W.J., Gerbi, C.C., Johnson, S.E., and Koons, P.O., 2013. Determining the relative strengths of rocks from deformational geometry and implications for the rheology of the lower crust. Geological Society of America Abstracts with Programs, Vol. 45, No. 1, p.120.
  • Okaya, D., Johnson, S.E., Vel, S.S., Song, W.J., and Christensen, N.I., 2012. The role of length scales in bridging the gap between rock CPO and seismic signals of crustal anisotropy. European Geosciences Union General Assembly, Geophysical Research Abstracts, Vol. 14, EGU2012-12830.
  • Song, W.S., Vel, S.S., Johnson, S.E., and Okaya, D., 2012. Effect of fold structures on seismic anisotropy in continental crust. European Geosciences Union General Assembly, Geophysical Research Abstracts, Vol. 14, EGU2012-12661.
  • Johnson, S.E., Vel, S.S., Gerbi, C.C., Cook, A.C., Song, W.J., and Okaya, D., 2011. Evaluating the effects of shear zone development on seismic anisotropy in the deep cratonic crust: natural examples and computational methods. Geological Society of America Abstracts with Programs, Vol. 43, No. 5, p.198.
  • Johnson, S.E., Vel, S.S., Gerbi, C.C., Cook, A.C., Song, W.J., Naus-Thijssen, F.M.J., and Goupee, A.J., 2011. Microscale stress and strain distributions, fabric evolution, and crustal seismic anisotropy. In: Aerden D.G.A.M. & Johnson, S.E. (eds) The Interrelationship Between Deformation and Metamorphism, Abstracts Volume, p.50, University of Granada, Spain.
  • Johnson, S.E., Vel, S.S., Gerbi, C.C., Song, W.J., Okaya, D.A., and Cook, A.C., 2011. The effects of strain localization and shear zone development on elastic anisotropy at a variety of scales. Geological Society of America Penrose Conference, Cap de Creus, Catalonia, Spain, June 27–July 2.
  • Vel, S.S., Johnson, S.E., Cook, A.C., Goupee, A.J., Song, W.J., and Okaya, D., 2011. Integrated analytical-computational framework for the calculation of bulk elastic properties and seismic wave speeds in polycrystalline materials. Geological Society of America Abstracts with Programs, Vol. 43, No. 5, p.198.

Software and Other Products: