Publications

2024

(15)    Portner, D.E., Delph, J.R., Kiser, E., Abers, G.A., Levander, A., and Pang, G. Validation of Ps-P Tomography for Obtaining 3D Crustal Vp/Vs With Small-N Data Sets: An Application to the Mount St. Helens Magmatic System. Journal of Geophysical Research: Solid Earth, 129, doi:10.1029/2024JB029642.

(14)    Rodríguez, E.E., Beck, S.L., Ruiz, M., Meltzer, A., Portner, D.E., Hernández, S., Segovia, M., Agurto-Detzel, H., and Charvis, P. Seismic imaging of the Northern Andean subduction zone from teleseismic tomography: a torn and fragmented Nazca slab. Geophysical Journal International, 236, doi:10.d1093/gji/ggad421.

2022

(13)     Lynner, C., Delph, J.R., Portner, D.E., Beck, S.L., Sandvol, E., and Ozacar, A.A. Slab Induced Mantle Upwelling Beneath the Anatolian Plateau. Geophysical Research Letters, 49, doi:10.1029/2021GL097451.

2021

(12)     Affonso, G.M.P.C., Rocha, M.P., Costa, I.S.L., Assumpção, M., Fuck, R.A., Albuquerque, D.F., Portner, D.E., Rodríguez, E.E., and Beck, S.L. Lithospheric architecture of the Paranapanema Block and adjacent nuclei using multiple-frequency P-wave seismic tomography. Journal of Geophysical Research: Solid Earth, 126, doi:10.1029/2020JB021183.

(11)     Rodríguez, E.E., Portner, D.E., Beck, S.L., Rocha, M.P., Bianchi, M.B., Assumpção, M., Ruiz, M., Alvarado, P., Condori, C., and Lynner, C. Mantle dynamics of the Andean Subduction Zone from continental-scale teleseismic S-wave tomography. Geophysical Journal International, 224, doi:10.1093/gji/ggaa536.

2020

(10)     Portner, D.E., Wagner, L.S., Janiszewski, H.A., Roman, D.C., and Power, J.A. Ps-P Tomography of a Midcrustal Magma Reservoir Beneath Cleveland Volcano, Alaska. Geophysical Research Letters, 47, doi:10.1029/2020GL090406.

(9)     Agrawal, S., Eakin, C.M., Portner, D.E., Rodríguez, E.E., and Beck, S. The deformational journey of the Nazca Slab from seismic anisotropy. Geophysical Research Letters, 47(11), doi:10.1029/2020GL087398.

(8)     Király, A., Portner, D.E., Haynie, K.L., Chilson-Parks, B.H., Ghosh, T., Jadamec, M., Makushkina, A., Manga, M., Moresi, L., and O'Farrell, K.A.  The effect of slab gaps on subduction dynamics and mantle upwelling. Tectonophysics, doi:10.1016/j.tecto.2020.228458.

(7)     Portner, D.E., Rodríguez, E.E., Beck, S., Zandt, G.,  Scire, A., Rocha, M.P., Bianchi, M.B., Ruiz, M., França, G.S., Condori, C., and Alvarado, P.  Detailed structure of the subducted Nazca slab into the lower mantle derived from continent-scale teleseismic P-wave tomography. Journal of Geophysical Research - Solid Earth, doi:10.1029/2019JB017884.

2019

(6)     Meltzer, A., Beck, S., Ruiz, M., Hoskins, M., Soto-Cordero, L., Stachnik, J. C., Lynner, C., Porritt, R., Portner, D., Alvarado, A., Hernandez, S., Yepes, H., Charvis, P., Font, Y., Regnier, M., Agurto-Detzel, H., Rietbrock, A., Leon-Rios, S., and Mercerat, E. D. The 2016 Mw 7.8 Pedernales Earthquake, Ecuador: RAPID Response Deployment. Seismological Research Letters, 90(3), doi:10.1785/0220180364.

2018

(5)     Hayes, G.P., Moore, G.L., Portner, D.E., Hearne, M., Flamme, H., Furtney, M., and Smoczyk, G. Slab2, a comprehensive subduction zone geometry model. Science, 362(6410), doi:10.1126/science.aat4723.

(4)     Portner, D.E. and Hayes, G.P. Incorporating teleseismic tomography data into models of upper mantle slab geometry. Geophysical Journal International, 215, doi:10.1093/gji/ggy279.

(3)     Portner, D.E., Delph, J.R., Biryol, C.B., Beck, S.L., Zandt, G., Ozacar, A.A., Sandvol, E., and Turkelli, N. Subduction termination through progressive slab deformation across Eastern Mediterranean subduction zones from updated P-wave tomography beneath Anatolia. Geosphere, 14(3), doi:10.1130/GES01617.1.

2017

(2)     Lynner, C., Anderson, M., Portner, D.E., Beck, S.L., and Gilbert, H. Mantle flow through a tear in the Nazca slab inferred from shear wave splitting. Geophysical Research Letters, 44, doi:10.1002/2017GL074312.

(1)     Portner, D.E., Beck, S., Zandt, G., and Scire, A. The nature of subslab slow velocity anomalies beneath South America. Geophysical Research Letters, 44, doi:10.1002/2017GL073106.

PDFs available for download on ResearchGate.