Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder

Anne F. Sheehan

Research Interests

I am a professor in Geological Sciences and CIRES at the University of Colorado Boulder. My research group addresses problems in earthquake seismology, tsunami studies, active tectonics, and geophysical imaging of the subsurface. Research topics include deep structure and tectonics of mountain regions including the Rocky Mountains, Himalaya, and Southern Alps, subduction zone seismicity and structure, tsunami modeling using seafloor pressure measurements, tsunami forecasting with data assimilation, and studies of induced seismicity. Our work is field- and computer- based; we deploy seismometers, including ocean bottom seismometers, to record earthquakes and tsunamis as signals; we deploy geodetic and electromagnetic instruments, for tectonic studies and subsurface imaging complementary to seismology. The data sets that we collect are processed using modern algorithms, with significant emphasis on time series analysis, signal detection, and imaging technologies. Novel computational techniques include data assimilation, subspace detection, and interferometry.

Current Research

Subduction zone studies: Sheehan is a PI on the Alaska Amphibious Array Community Seismic Experiment (AACSE) and the Hikurangi Ocean Bottom Investigation of Tremor and Slow Slip (HOBITSS) experiments. Both of these projects involved the deployment of ocean bottom seismic and pressure sensors to study subduction zone processes including slow slip, megathrust earthquakes, and tsunamis. Graduate students and postdocs on these projects have worked on seismicity, attenuation, and tomography.

Induced seismicity: Sheehan’s seismology group, in close collaboration with the hydrogeology group of Professor Shemin Ge, also in the Department of Geological Sciences, has made numerous contributions in recent years to studies of human-induced seismicity. Sheehan’s group has an ongoing experiment in northeast Colorado and maintains a webpage with direct access to real time seismic data from throughout Colorado at earthquake.colorado.edu

Continental crust and mantle imaging: Sheehan’s group made many early contributions to the use of converted seismic wave imaging and anisotropy studies of the continental lithosphere. Current method development includes coda wave autocorrelation interferometry, with the goal of better utilizing short-term but dense deployments of seismometer, with targets including crustal faults at depth.

Tsunami studies: A relatively new focus of the Sheehan group is in tsunami studies. This grew out of Sheehan’s involvement with ocean bottom seismic experiments, and the recognition that tsunami signals were well-recorded on the pressure sensors associated with such deployments. This has led to productive collaborations with international researchers and new development of in-house expertise.

Geomagnetics: Sheehan has co-advised graduate students with the local NOAA and USGS geomagnetic groups. Recent publications include a magnetotelluric study of the Rio Grande Rift (Feucht et al., 2019), and use of ocean tidal magnetic signals to study patterns of ocean circulation (Schnepft et al., 2018).

 

Check out our video documenting our journey at sea.

 

 



Sunset from the R/V Sikuliaq, July 2018. Broadband ocean bottom seismometers arranged on deck are ready to be deployed in support of the Alaska Amphibious Community Seismic Experiment. Photo: Anne Sheehan

Melody Zhang, Jack Bell, Anne Sheehan, and Tom Clifford deploying portable seismometer near Great Sand Dunes National Park, Colorado. Photo: Bob Kirkham

Honors and Awards

  • AGU Fellow, 2014

View Publications

  • Zietlow, DW, AF Sheehan and MV Bernardino (2018), Teleseismic S-wave tomography of South Island, New Zealand upper mantle. Geosphere Version: 1 14 (3) 1343-1364, issn: 1553-040X, ids: GJ3PO, doi: 10.1130/GES01591.1
  • Todd, EK, SY Schwartz, K Mochizuki, LM Wallace, AF Sheehan, SC Webb, CA Williams, J Nakai, J Yarce, B Fry, S Henrys and Y Ito (2018), Earthquakes and Tremor Linked to Seamount Subduction During Shallow Slow Slip at the Hikurangi Margin, New Zealand. J. Geophys. Res.-Solid Earth Version: 1 123 (8) 6769-6783, issn: 2169-9313, ids: GV5UV, doi: 10.1029/2018JB016136
  • Yeck, WL, AF Sheehan, JC Stachnik and FC Lin (2017), Offshore Rayleigh group velocity observations of the South Island, New Zealand, from ambient noise data. Geophys. J. Int. Version: 1 209 (2) 827-841, issn: 0956-540X, ids: EW6SW, doi: 10.1093/gji/ggx054
  • Brown, MRM, SM Ge, AF Sheehan and JS Nakai (2017), Evaluating the effectiveness of induced seismicity mitigation: Numerical modeling of wastewater injection near Greeley, Colorado. J. Geophys. Res.-Solid Earth Version: 1 122 (8) 6569-6582, issn: 2169-9313, ids: FH7CS, doi: 10.1002/2017JB014456
  • Feucht, DW, AF Sheehan and PA Bedrosian (2017), Magnetotelluric Imaging of Lower Crustal Melt and Lithospheric Hydration in the Rocky Mountain Front Transition Zone, Colorado, USA. J. Geophys. Res.-Solid Earth Version: 1 122 (12) 9489-9510, issn: 2169-9313, ids: FT4MM, doi: 10.1002/2017JB014474
  • Nakai, JS, AF Sheehan and SL Bilek (2017), Seismicity of the rocky mountains and Rio Grande Rift from the EarthScope Transportable Array and CREST temporary seismic networks, 2008-2010. J. Geophys. Res.-Solid Earth Version: 1 122 (3) 2173-2192, issn: 2169-9313, ids: ES6LV, doi: 10.1002/2016JB013389
  • Nakai, JS, M Weingarten, AF Sheehan, SL Bilek and S Ge (2017), A Possible Causative Mechanism of Raton Basin, New Mexico and Colorado Earthquakes Using Recent Seismicity Patterns and Pore Pressure Modeling. J. Geophys. Res.-Solid Earth Version: 1 122 (10) 8051-8065, issn: 2169-9313, ids: FQ7XW, doi: 10.1002/2017JB014415
  • ORourke, CT, AF Sheehan, EA Erslev and ML Anderson (2016), Small-Magnitude Earthquakes in North-Central Wyoming Recorded during the Bighorn Arch Seismic Experiment. Bull. Seismol. Soc. Amer. Version: 1 106 (1) 281-288, issn: 0037-1106, ids: DB5XW, doi: 10.1785/0120150114
  • Gusman, AR, AF Sheehan, K Satake, M Heidarzadeh, IE Mulia and T Maeda (2016), Tsunami data assimilation of Cascadia seafloor pressure gauge records from the 2012 Haida Gwaii earthquake. Geophys. Res. Lett. Version: 1 43 (9) 4189-4196, issn: 0094-8276, ids: DP2RS, doi: 10.1002/2016GL068368
  • Worthington, LL, KC Miller, EA Erslev, ML Anderson, KR Chamberlain, AF Sheehan, WL Yeck, SH Harder and CS Siddoway (2016), Crustal structure of the Bighorn Mountains region: Precambrian influence on Laramide shortening and uplift in north-central Wyoming. Tectonics Version: 1 35 (1) 208-236, issn: 0278-7407, ids: DE3AO, doi: 10.1002/2015TC003840
  • Wallace, LM, SC Webb, Y Ito, K Mochizuki, R Hino, S Henrys, SY Schwartz and AF Sheehan (2016), Slow slip near the trench at the Hikurangi subduction zone, New Zealand. Science Version: 1 352 (6286) 701-704, issn: 0036-8075, ids: DL1UC, doi: 10.1126/science.aaf2349, PubMed ID: 27151867
  • Yeck, WL, AF Sheehan, HM Benz, M Weingarten and J Nakai (2016), Rapid Response, Monitoring, and Mitigation of Induced Seismicity near Greeley, Colorado. Seismol. Res. Lett. Version: 1 87 (4) 837-847, issn: 0895-0695, ids: DP4TU, doi: 10.1785/0220150275
  • Zietlow, DW, PH Molnar and AF Sheehan (2016), Teleseismic P wave tomography of South Island, New Zealand upper mantle: Evidence of subduction of Pacific lithosphere since 45 Ma. J. Geophys. Res.-Solid Earth Version: 1 121 (6) 4427-4445, issn: 2169-9313, ids: DT6XD, doi: 10.1002/2015JB012624
  • Ball, JS, AF Sheehan, JC Stachnik, FC Lin, WL Yeck and JA Collins (2016), Lithospheric shear velocity structure of South Island, New Zealand, from amphibious Rayleigh wave tomography. J. Geophys. Res.-Solid Earth Version: 1 121 (5) 3686-3702, issn: 2169-9313, ids: DT6XA, doi: 10.1002/2015JB012726
  • Gusman, AR, IE Mulia, K Satake, S Watada, M Heidarzadeh and AF Sheehan (2016), Estimate of tsunami source using optimized unit sources and including dispersion effects during tsunami propagation: The 2012 Haida Gwaii earthquake. Geophys. Res. Lett. Version: 1 43 (18) 9819-9828, issn: 0094-8276, ids: DY8PS, doi: 10.1002/2016GL070140
  • ORourke, CT, GE Baker and AF Sheehan (2016), Using P/S Amplitude Ratios for Seismic Discrimination at Local Distances. Bull. Seismol. Soc. Amer. Version: 1 106 (5) 2320-2331, issn: 0037-1106, ids: EC8BN, doi: 10.1785/0120160035
  • Karalliyadda, S. C., Savage, M. K., Sheehan, A., Collins, J., Zietlow, D., Shelley, A. (2015), S-wave splitting in the offshore South Island, New Zealand: Insights into plate-boundary deformation: S-WAVE SPLITTING: OFFSHORE SOUTH ISLAND. Geochem. Geophys. Geosyst. Version: 1 16 (9) , issn: 15252027, doi: 10.1002/2015GC005882
  • McGarr, A., Bekins, B., Burkardt, N., Dewey, J., Earle, P., Ellsworth, W., Ge, S., Hickman, S., Holland, A., Majer, E., Rubinstein, J., Sheehan, A. (2015), Coping with earthquakes induced by fluid injection. Science Version: 1 347 (6224) , issn: 00368075, doi: 10.1126/SCIENCE.AAA0494
  • Sheehan, AF, AR Gusman, M Heidarzadeh and K Satake (2015), Array Observations of the 2012 Haida Gwaii Tsunami Using Cascadia Initiative Absolute and Differential Seafloor Pressure Gauges. Seismol. Res. Lett. Version: 1 86 (5) 1278-1286, issn: 0895-0695, ids: CR3TR, doi: 10.1785/0220150108
  • Godin, OA, NA Zabotin, AF Sheehan and JA Collins (2014), Interferometry of infragravity waves off New Zealand. J. Geophys. Res.-Oceans Version: 1 119 (2) 1103-1122, issn: 2169-9275, ids: AH6SO, doi: 10.1002/2013JC009395
  • Zietlow, DW, AF Sheehan, PH Molnar, MK Savage, G Hirth, JA Collins and BH Hager (2014), Upper mantle seismic anisotropy at a strike-slip boundary: South Island, New Zealand. J. Geophys. Res.-Solid Earth Version: 1 119 (2) 1020-1040, issn: 2169-9313, ids: AD2AK, doi: 10.1002/2013JB010676
  • Yeck, WL, AF Sheehan, ML Anderson, EA Erslev, KC Miller and CS Siddoway (2014), Structure of the Bighorn Mountain region, Wyoming, from teleseismic receiver function analysis: Implications for the kinematics of Laramide shortening. J. Geophys. Res.-Solid Earth Version: 1 119 (9) 7028-7042, issn: 2169-9313, ids: AR9EI, doi: 10.1002/2013JB010769
  • ORourke, CT, AF Sheehan, EA Erslev and KC Miller (2014), Estimating basin thickness using a high-density passive-source geophone array. Earth Planet. Sci. Lett. Version: 1 402 120-126, issn: 0012-821X, ids: AO4VW, doi: 10.1016/j.epsl.2013.10.035
  • Ball, JS, AF Sheehan, JC Stachnik, FC Lin and JA Collins (2014), A joint Monte Carlo analysis of seafloor compliance, Rayleigh wave dispersion and receiver functions at ocean bottom seismic stations offshore New Zealand. Geochem. Geophys. Geosyst. Version: 1 15 (12) 5051-5068, issn: 1525-2027, ids: AZ2JZ, doi: 10.1002/2014GC005412
  • Ball, Justin S and Anne F Sheehan (2014), Hydroacoustic signals of Antarctic origin detected at ocean-bottom seismic stations off New Zealand.. J. Acoust. Soc. Am. Version: 1 135 (4) , Art. No. 2307, issn: 1520-8524, doi: 10.1121/1.4877605, PubMed ID: 25235663
  • Sheehan, AF, TL de la Torre, G Monsalve, GA Abers and BR Hacker (2014), Physical state of Himalayan crust and uppermost mantle: Constraints from seismic attenuation and velocity tomography. J. Geophys. Res.-Solid Earth Version: 1 119 (1) 567-580, issn: 2169-9313, ids: AD1ZY, doi: 10.1002/2013JB010601
  • Yeck, WL, AF Sheehan and V Schulte-Pelkum (2013), Sequential H-kappa Stacking to Obtain Accurate Crustal Thicknesses beneath Sedimentary Basins. Bull. Seismol. Soc. Amer. Version: 1 103 (3) 2142-2150, issn: 0037-1106, ids: 160FH, doi: 10.1785/0120120290
  • Wech, AG, AF Sheehan, CM Boese, J Townend, TA Stern and JA Collins (2013), Tectonic Tremor Recorded by Ocean Bottom Seismometers. Seismol. Res. Lett. Version: 1 84 (5) 752-758, issn: 0895-0695, ids: 212NS, doi: 10.1785/0220120184
  • Godin, OA, NA Zabotin, AF Sheehan, ZH Yang and JA Collins (2013), Power spectra of infragravity waves in a deep ocean. Geophys. Res. Lett. Version: 1 40 (10) 2159-2165, issn: 0094-8276, ids: 277SS, doi: 10.1002/grl.50418
  • Berglund, HT, AF Sheehan, MH Murray, M Roy, AR Lowry, RS Nerem and F Blume (2012), Distributed deformation across the Rio Grande Rift, Great Plains, and Colorado Plateau. Geology Version: 1 40 (1) 23-26, issn: 0091-7613, ids: 866VK, doi: 10.1130/G32418.1
  • Yang, ZH, AF Sheehan, WL Yeck, KC Miller, EA Erslev, LL Worthington and SH Harder (2012), Imaging basin structure with teleseismic virtual source reflection profiles. Geophys. Res. Lett. Version: 1 39 , Art. No. L02303, issn: 0094-8276, ids: 880GR, doi: 10.1029/2011GL050035
  • Stachnik, JC, AF Sheehan, DW Zietlow, Z Yang, J Collins and A Ferris (2012), Determination of New Zealand Ocean Bottom Seismometer Orientation via Rayleigh-Wave Polarization. Seismol. Res. Lett. Version: 1 83 (4) 704-713, issn: 0895-0695, ids: 048MJ, doi: 10.1785/0220110128
  • Yang, ZH, AF Sheehan, JA Collins and G Laske (2012), The character of seafloor ambient noise recorded offshore New Zealand: Results from the MOANA ocean bottom seismic experiment. Geochem. Geophys. Geosyst. Version: 1 13 , Art. No. Q10011, issn: 1525-2027, ids: 023XL, doi: 10.1029/2012GC004201
  • Befus, KM, AF Sheehan, M Leopold, SP Anderson and RS Anderson (2011), Seismic Constraints on Critical Zone Architecture, Boulder Creek Watershed, Front Range, Colorado. Vadose Zone J. Version: 1 10 (3) 915-927, issn: 1539-1663, ids: 808UX, doi: 10.2136/vzj2010.0108
  • Collins, JA, P Molnar and AF Sheehan (2011), Multibeam bathymetric surveys of submarine volcanoes and mega-pockmarks on the Chatham Rise, New Zealand. N. Z. J. Geol. Geophys. Version: 1 54 (3) 329-339, issn: 0028-8306, ids: 880QM, doi: 10.1080/00288306.2011.589860
  • Schulte-Pelkum, V, G Biasi, A Sheehan and C Jones (2011), Differential motion between upper crust and lithospheric mantle in the central Basin and Range. Nature Geosci. Version: 1 4 (9) 619-623, issn: 1752-0894, ids: 814KY, doi: 10.1038/ngeo1229
  • Yang, ZH, A Sheehan and P Shearer (2011), Stress-induced upper crustal anisotropy in southern California. J. Geophys. Res.-Solid Earth Version: 1 116 , Art. No. B02302, issn: 2169-9313, ids: 717HX, doi: 10.1029/2010JB007655
  • Monsalve, G, P McGovern and A Sheehan (2009), Mantle fault zones beneath the Himalayan collision: Flexure of the continental lithosphere. Tectonophysics Version: 1 477 (2-Jan) 66-76, issn: 0040-1951, ids: 519ON, doi: 10.1016/j.tecto.2008.12.014
  • Huang, GC, FT Wu, SW Roecker and AF Sheehan (2009), Lithospheric structure of the central Himalaya from 3-D tomographic imaging. Tectonophysics Version: 1 475 (4-Mar) 524-543, issn: 0040-1951, ids: 542UP, doi: 10.1016/j.tecto.2009.06.023
  • Monsalve, G, C Vivian and A Sheehan (2008), An assessment of Colorado seismicity from a statewide temporary seismic station network. Seismol. Res. Lett. Version: 1 79 (5) 645-652, issn: 0895-0695, ids: 355BI, doi: 10.1785/gssrl.79.5.645
  • Monsalve, G, A Sheehan, C Rowe and S Rajaure (2008), Seismic structure of the crust and the upper mantle beneath the Himalayas: Evidence for eclogitization of lower crustal rocks in the Indian Plate. J. Geophys. Res.-Solid Earth Version: 1 113 (B8) , Art. No. B08315, issn: 0148-0227, ids: 340ME, doi: 10.1029/2007JB005424
  • Boyd, OS, MK Savage, AF Sheehan and CH Jones (2007), Illuminating the plate interface structure beneath Cook Strait, New Zealand, with receiver functions. J. Geophys. Res.-Solid Earth Version: 1 112 (B6) , Art. No. B06310, issn: 0148-0227, ids: 185DM, doi: 10.1029/2006JB004552
  • de la Torre, TL, G Monsalve, AF Sheehan, S Sapkota and F Wu (2007), Earthquake processes of the Himalayan collision zone in eastern Nepal and the southern Tibetan Plateau. Geophys. J. Int. Version: 1 171 (2) 718-738, issn: 0956-540X, ids: 220GR, doi: 10.1111/j.1365-246X.2007.03537.x
  • Monsalve, G, A Sheehan, V Schulte-Pelkum, S Rajaure, MR Pandey and F Wu (2006), Seismicity and one-dimensional velocity structure of the Himalayan collision zone: Earthquakes in the crust and upper mantle. J. Geophys. Res.-Solid Earth Version: 1 111 (B10) , Art. No. B10301, issn: 0148-0227, ids: 092TZ, doi: 10.1029/2005JB004062
  • Sheehan, A, V Schulte-Pelkum, O Boyd and C Wilson (2005), Passive Source Seismology of the Rocky Mountain Region. Version: 1 ROCKY MOUNTAIN REGION: AN EVOLVING LITHOSPHERE: TECTONICS, GEOCHEMISTRY, AND GEOPHYSICS 154 309-315, Ed. Karlstrom, KE; Keller, GR, issn: 0065-8448, ids: BOG08, isbn: 978-0-87590-419-1, doi: 10.1029/154GM23
  • Lastowka, LA and AF Sheehan (2005), CDROM Interstation Pn Study Along the Rio Grande Rift. Version: 1 ROCKY MOUNTAIN REGION: AN EVOLVING LITHOSPHERE: TECTONICS, GEOCHEMISTRY, AND GEOPHYSICS 154 379-384, Ed. Karlstrom, KE; Keller, GR, issn: 0065-8448, ids: BOG08, isbn: 978-0-87590-419-1, doi: 10.1029/154GM28
  • Boyd, OS and AF Sheehan (2005), Attenuation Tomography Beneath the Rocky Mountain Front: Implications for the Physical State of the Upper Mantle. Version: 1 ROCKY MOUNTAIN REGION: AN EVOLVING LITHOSPHERE: TECTONICS, GEOCHEMISTRY, AND GEOPHYSICS 154 361-377, Ed. Karlstrom, KE; Keller, GR, issn: 0065-8448, ids: BOG08, isbn: 978-0-87590-419-1, doi: 10.1029/154GM27
  • de la Torre, TL and AF Sheehan (2005), Broadband seismic. noise analysis of the Himalayan Nepal Tibet Seismic Experiment. Bull. Seismol. Soc. Amer. Version: 1 95 (3) 1202-1208, issn: 0037-1106, ids: 938PX, doi: 10.1785/0120040098
  • Fox, OC and AF Sheehan (2005), Upper Mantle Anisotropy Beneath Precambrian Province Boundaries, Southern Rocky Mountains. Version: 1 ROCKY MOUNTAIN REGION: AN EVOLVING LITHOSPHERE: TECTONICS, GEOCHEMISTRY, AND GEOPHYSICS 154 347-360, Ed. Karlstrom, KE; Keller, GR, issn: 0065-8448, ids: BOG08, isbn: 978-0-87590-419-1, doi: 10.1029/154GM26
  • Schulte-Pelkum, V, G Monsalve, A Sheehan, MR Pandey, S Sapkota, R Bilham and F Wu (2005), Imaging the Indian subcontinent beneath the Himalaya. Nature Version: 1 435 (7046) 1222-1225, issn: 0028-0836, ids: 940JJ, doi: 10.1038/nature03678, PubMed ID: 15988523
  • Wilson, CK, CH Jones, P Molnar, AF Sheehan and OS Boyd (2004), Distributed deformation in the lower crust and upper mantle beneath a continental strike-slip fault zone: Marlborough fault system, South Island, New Zealand. Geology Version: 1 32 (10) 837-840, issn: 0091-7613, ids: 861LD, doi: 10.1130/G20657.1
  • Gilbert, HJ and AF Sheehan (2004), Images of crustal variations in the intermountain west. J. Geophys. Res.-Solid Earth Version: 1 109 (B3) , Art. No. B03306, issn: 2169-9313, ids: 806ND, doi: 10.1029/2003JB002730
  • Boyd, OS, CH Jones and AF Sheehan (2004), Foundering lithosphere imaged beneath the Southern Sierra Nevada, California, USA. Science Version: 1 305 (5684) 660-662, issn: 0036-8075, ids: 842GQ, doi: 10.1126/science.1099181, PubMed ID: 15286370
  • Gilbert, HJ, AF Sheehan, KG Dueker and P Molnar (2003), Receiver functions in the western United States, with implications for upper mantle structure and dynamics. J. Geophys. Res.-Solid Earth Version: 1 108 (B5) , Art. No. 2229, issn: 2169-9313, ids: 678KB, doi: 10.1029/2001JB001194
  • Hazler, SE, AF Sheehan, DE McNamara and WR Walter (2001), One-dimensional shear velocity structure of Northern Africa from Rayleigh wave group velocity dispersion. Pure Appl. Geophys. Version: 1 158 (8) 1475-1493, issn: 0033-4553, ids: 472UD, doi: 10.1007/PL00001230
  • Lastowka, LA, AF Sheehan and JM Schneider (2001), Seismic evidence for partial lithospheric delamination model of Colorado Plateau uplift. Geophys. Res. Lett. Version: 1 28 (7) 1319-1322, issn: 0094-8276, ids: 415GZ, doi: 10.1029/2000GL012360
  • Smith, KD, JN Brune, D dePolo, MK Savage, R Anooshehpoor and AF Sheehan (2001), The 1992 Little Skull Mountain earthquake sequence, southern Nevada Test Site. Bull. Seismol. Soc. Amer. Version: 1 91 (6) 1595-1606, issn: 0037-1106, ids: 520DZ, doi: 10.1785/0120000089
  • Gilbert, HJ, AF Sheehan, DA Wiens, KG Dueker, LM Dorman, J Hildebrand and S Webb (2001), Upper mantle discontinuity structure in the region of the Tonga Subduction Zone. Geophys. Res. Lett. Version: 1 28 (9) 1855-1858, issn: 0094-8276, ids: 424QN, doi: 10.1029/2000GL012192
  • Savage, MK and AF Sheehan (2000), Seismic anisotropy and mantle flow from the Great Basin to the Great Plains, western United States. J. Geophys. Res.-Solid Earth Version: 1 105 (B6) 13715-13734, issn: 2169-9313, ids: 324NJ, doi: 10.1029/2000JB900021
  • Sheehan, AF, PM Shearer, HJ Gilbert and KG Dueker (2000), Seismic migration processing of P-SV converted]phases for mantle discontinuity structure beneath the Snake River Plain, western United States. J. Geophys. Res.-Solid Earth Version: 1 105 (B8) 19055-19065, issn: 2169-9313, ids: 345BB, doi: 10.1029/2000JB900112
  • Bhattacharyya, J, AF Sheehan, K Tiampo and J Rundle (1999), Using a genetic algorithm to model broadband regional waveforms for crustal structure in the western United States. Bull. Seismol. Soc. Amer. Version: 1 89 (1) 202-214, issn: 0037-1106, ids: 170MB
  • Shen, Y, AF Sheehan, KG Dueker, C de Groot-Hedlin and H Gilbert (1998), Mantle discontinuity structure beneath the southern East Pacific Rise from P-to-S converted phases. Science Version: 1 280 (5367) 1232-1235, issn: 0036-8075, ids: ZQ351, doi: 10.1126/science.280.5367.1232
  • Forsyth, DW, DS Scheirer, SC Webb, LM Dorman, JA Orcutt, AJ Harding, DK Blackman, JP Morgan, RS Detrick, Y Shen, CJ Wolfe, JP Canales, DR Toomey, AF Sheehan, SC Solomon and WSD Wilcock (1998), Imaging the deep seismic structure beneath a mid-ocean ridge: The MELT experiment. Science Version: 1 280 (5367) 1215-1218, issn: 0036-8075, ids: ZQ351
  • Dueker, KG and AF Sheehan (1998), Mantle discontinuity structure beneath the Colorado Rocky Mountains and High Plains. J. Geophys. Res.-Solid Earth Version: 1 103 (B4) 7153-7169, issn: 2169-9313, ids: ZG619, doi: 10.1029/97JB03509
  • Bump, HA and AF Sheehan (1998), Crustal thickness variations across the northern Tien Shan from teleseismic receiver functions. Geophys. Res. Lett. Version: 1 25 (7) 1055-1058, issn: 0094-8276, ids: ZE646, doi: 10.1029/98GL00516
  • Dueker, KG and AF Sheehan (1997), Mantle discontinuity structure from midpoint stacks of converted P to S waves across the Yellowstone hotspot track. J. Geophys. Res.-Solid Earth Version: 1 102 (B4) 8313-8327, issn: 2169-9313, ids: WU876, doi: 10.1029/96JB03857
  • Ozalaybey, S, MK Savage, AF Sheehan, JN Louie and JN Brune (1997), Shear-wave velocity structure in the northern Basin and Range province from the combined analysis of receiver functions and surface waves. Bull. Seismol. Soc. Amer. Version: 1 87 (1) 183-199, issn: 0037-1106, ids: WL061
  • Sheehan, AF, CH Jones, MK Savage, S Ozalaybey and JM Schneider (1997), Contrasting lithospheric structure between the Colorado Plateau and Great Basin: Initial results from Colorado Plateau - Great Basin PASSCAL experiment. Geophys. Res. Lett. Version: 1 24 (21) 2609-2612, issn: 0094-8276, ids: YE985, doi: 10.1029/97GL02782
  • Savage, MK, AF Sheehan and A LernerLam (1996), Shear wave splitting across the rocky mountain front. Geophys. Res. Lett. Version: 1 23 (17) 2267-2270, issn: 0094-8276, ids: VD376, doi: 10.1029/96GL02146
  • SHEEHAN, AF, GA ABERS, CH JONES and AL LERNERLAM (1995), CRUSTAL THICKNESS VARIATIONS ACROSS THE COLORADO ROCKY-MOUNTAIN FROM TELESEISMIC RECEIVER FUNCTIONS. J. Geophys. Res.-Solid Earth Version: 1 100 (B10) 20391-20404, issn: 2169-9313, ids: RZ312, doi: 10.1029/95JB01966
  • SHEEHAN, AF (1993), MAPPING CONVECTION IN THE OCEANIC UPPER MANTLE. Geotimes Version: 1 38 (6) 18-20, issn: 0016-8556, ids: LE186
  • SHEEHAN, AF and SC SOLOMON (1992), DIFFERENTIAL SHEAR-WAVE ATTENUATION AND ITS LATERAL VARIATION IN THE NORTH-ATLANTIC REGION. J. Geophys. Res.-Solid Earth Version: 1 97 (B11) 15339-15350, issn: 0148-0227, ids: JR875, doi: 10.1029/92JB01093
  • DOUGLAS, A, AF SHEEHAN and RC STEWART (1992), NORTHERN CHILE EARTHQUAKE OF 1980 MAY 26 - EVIDENCE OF UNILATERAL FRACTURE. Geophys. J. Int. Version: 1 110 (1) 201-210, issn: 0956-540X, ids: HZ801, doi: 10.1111/j.1365-246X.1992.tb00722.x
  • DOUGLAS, A, AF SHEEHAN and RC STEWART (1992), ON THE ONSET OF PP AND OTHER MINI-MAX PHASES. Geophys. J. Int. Version: 1 108 (1) 394-398, issn: 0956-540X, ids: GX547, doi: 10.1111/j.1365-246X.1992.tb00867.x
  • SHEEHAN, AF and MK MCNUTT (1989), CONSTRAINTS ON THERMAL AND MECHANICAL STRUCTURE OF THE OCEANIC LITHOSPHERE AT THE BERMUDA RISE FROM GEOID HEIGHT AND DEPTH ANOMALIES. Earth Planet. Sci. Lett. Version: 1 93 (4-Mar) 377-391, issn: 0012-821X, ids: AH128, doi: 10.1016/0012-821X(89)90037-X
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