SLIDES-PR Interactive Map

Guía sobre deslizamientos de tierra para residentes de Puerto Rico

Landslide guide for residents of Puerto Rico

               

Publications:

*indicates student author

(23)  West, J., Rodriguez-Cruz, L. A., and Hughes, K. S., 2023, Steep Risks: Assessing Social Vulnerability to Landslides in Rural Puerto Rico. Natural Hazards Center Public Health Report Series, 34. University of Colorado Boulder. https://hazards.colorado.edu/public-health-disaster-research/steep-risks

(22) Morales, A.C., Hughes, K.S., et al., 2023,  Geotechnical Impacts of Hurricane Fiona in Puerto Rico, Geotechnical Extreme Event Reconnaissance Report No. 081, 42p. (link)

(21) Ramos-Scharrón, C.E., Arima, E.Y., and Hughes, K.S., 2022,  An assessment of the spatial distribution of shallow landslides induced by Hurricane María in Puerto Rico,  Physical Geography, v. 43, no. 2, p. 163-191,  https://doi.org/10.1080/02723646.2020.1801121. (pdf)

(20) Allstadt, K.E., Thompson, E.M., Bayouth García, D., Irizarry Brugman, E.O., Hughes, K.S., and Schmitt, R.G., 2022, Ground failure triggered by the 7 January 2020 M6.4 Puerto Rico earthquake, Seismological Research Letters, v. XX, p. 1-15. (pdf)

(19) *Irizarry Brugman, E.O., *Bayouth García, D., and Hughes, K.S., 2021, Widespread shallow mass wasting during Hurricane María: The effect of soil type on the volume of material loss and the long-term significance of sedimentation: Revista Internacional de Desastres Naturales, Accidentes e Infraestructura Civil, v. 21, p. 83-94. (pdf)

(18) Allstadt, K.E., Thompson, E.M., *Bayouth García, D., *Irizarry Brugman, E., Hernandez, J.L., Schmitt, R.G., Hughes, K.S., Fuentes, Z., Martinez, S.N., Cerovski-Darriau, C., Perkins, J.P., Grant, A.R., and Slaughter, S.L., 2020, Field observations of ground failure triggered by the 2020 Puerto Rico earthquake sequence: U.S. Geological Survey data release, https://doi.org/10.5066/P96QNFMB. (Interactive Dashboard)

(17) *West, J., Davis, L., *Lugo Bendezú, R., *Álvarez Gandía, Y.D., Hughes, K.S., Godt, J., and Peek, L., 2021, Principles for collaborative risk communication: Reducing landslide losses in Puerto Rico, Journal of Emergency Management, v. 19, no. 2, p. (pdf)

(16) Hughes, K.S., and Morales Vélez, A.C., 2020, Landslide Science in Puerto Rico: Past, Present, and Future; Revista Internacional de Desastres Naturales, Accidentes e Infraestructura Civil, v. 19-20, no. 1, p. 175-187. (pdf)

(15)  Morales-Vélez, A.C.,  Bernal, J.,  Hughes,  K.S., Pando, M., *Pérez, J., and Rodríguez, L.A., 2020, Geotechnical Reconnaissance of the January 7, 2020 M6.4 Southwest Puerto Rico Earthquake and Associated Seismic Sequence, Geotechnical Extreme Events Reconnaissance Report No.  066, 55p. (link) (pdf)

(14) Hughes, K.S., and Schulz, W.H., 2020, Map depicting susceptibility to landslides triggered by intense rainfall, Puerto Rico:  U.S. Geological Survey Open-File Report 2020-1022, 91 p., 1 plate, scale 1:150,000, https://doi.org/10.3133/ofr20201022

(13) López, A.M., Vanacore, E., Hughes, K.S., Báez-Sánchez, G., and Hudgins, T.R., 2020, Response and initial scientific findings from the southwestern Puerto Rico 2020 Seismic Sequence, Temblor, http://doi.org/10.32858/temblor.068.

(12) López, A.M., Hughes, K.S., and Vanacore, E., 2020, Puerto Rico’s Winter 2019-2020 Seismic Sequence Leaves the Island On Edge, Temblor, http://doi.org/10.32858/temblor.064.

(11) Hughes, K.S., *Bayouth García, D., *Martínez Milian, G.O., Schulz, W.H., and Baum, R.L., 2019, Map of slope-failure locations in Puerto Rico after Hurricane María: U.S. Geological Survey data release, https://doi.org/10.5066/P9BVMD74.

(10) Bessette-Kirton, E.K., Cerovski-Darriau, C., Schulz, W.H., Coe, J.A., Kean, J.W., Godt, J.W., Thomas, M.A., and Hughes, K.S., 2019, Landslides triggered by Hurricane Maria :  Assessment of an extreme event in Puerto Rico, GSA Today v. 29, no. 6, p. 4-10. (https://www.geosociety.org/gsatoday/science/G383A/article.htm)

(9) *Villareal Arango, A.F., Hughes, K.S., and Morales-Vélez, A.C., 2019, Multi-Decadal Earth Dam Deformation Monitoring using Airborne LiDAR and Structure from Motion at Lago Guajataca, Puerto Rico :  Geocongress, American Society of Civil Engineers, (link) (pdf).

(8) Silva-Tulla, F., Pando, M.A., Soto, A.E., Morales, A.C., Pradel, D., Inci, G., Sasanakul, I., Bernal, J.R., Kayen, R., Hughes, K.S., Adams, T., and Park, Y., 2018, Geotechnical Impacts of Hurricane Maria in Puerto Rico :  Geotechnical Extreme Events Reconnaissance Report No. 057, 234 p. (link) (pdf)

(7) Morales-Vélez, A.C., and Hughes, K.S., 2018, Comprehensive Hurricane María Mass Wasting Inventory and Improved Frequency Ratio Landslide Hazard Mapping:  Status Update From the University of Puerto Rico at Mayagüez : Dimension, Colegio de Inginieros y Agrimensores de Puerto Rico, v. 1, p. 23-26. (link) (pdf)

(6)  Hughes, K.S., Hibbard, J.P., and Bohnenstiehl, D.R., 2015, Relict Paleozoic faults in the epicentral area of the 23 August 2011 central Virginia earthquake:  Assessing the relationship between preexisting strain and modern seismicity, in Horton, J.W., Jr., Chapman, M.C., and Green, R.A., eds., The 2011 Mineral, Virginia, Earthquake, and Its Significance for Seismic Hazards in Eastern North America: Geological Society of America Special Paper 509. (link) (GSA Special Paper 509) (pdf)

(5)  Hughes, K.S., Hibbard, J.P., Burton, W.C., Sauer, T., 2014, Stitching the western Piedmont of Virginia:  Tectonic significance of the Ellisville pluton and the Potomac and Chopawamsic terranes in the early Paleozoic:  October 10-11, 2014 Virginia Geological Field Conference, Virginia Museum of Natural History Publications Guidebook Number 9, 33 p. (link) (VMNH store) (pdf) (VGFC presentation pdf)

(4)  Hughes, K.S., Hibbard, J.P., Pollock, J.C., Lewis, D.J., and Miller, B.V., 2014, Detrital zircon geochronology across the Chopawamsic fault, western Piedmont of north-central Virginia:  Implications for the main Iapetan suture in the southern Appalachian orogen:  Geoscience Canada, 45 ms p. (link) (pdf)

(3)  Hughes, K.S., Hibbard, J.P., Miller, B.V., Pollock, J.C., Terblanche, A.A., Nance, D.M., and Lewis, D.J., 2014, Does the Chopawamsic fault represent the main Iapetan suture in the southern Appalachians?  Geology, geochemistry, and geochronology of the western Piedmont of northern 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 Guides 34, p. 41-61. (link) (pdf)

(2)  Hughes, K.S., Hibbard, J.P., and Miller, B.V., 2013, Relationship between the Ellisville pluton and Chopawamsic fault:  Establishment of significant Late Ordovician faulting in the Appalachian Piedmont of Virginia, American Journal of Sc­ience, v. 313, no. 6, p. 584-612. (link)  (pdf)

(1)  Gallen, S.F., Wegmann, K.W., Frankel, K.L., Hughes, S., Lewis, R.Q., Lyons, N., Paris, P., Ross, K., Bauer, J.B., and Witt, A.C., 2011, Hillslope response to knickpoint migration in the Southern Appalchians:  implications for the evolution of post-orogenic landscapes, Earth Surface Processes and Landforms, Vol. 36, Issue 9, p. 1254-1267. (link) (pdf)


Videos:

(www.youtube.com/watch?v=1mUkmyvCGgA)

(www.youtube.com/watch?v=0aQFGl6JDqg)

(https://www.facebook.com/ecoexploratorio/videos/549325839085616)

(www.youtube.com/watch?v=U8juIPX0pkg)

(https://www.facebook.com/watch/?v=857777191340447)

(https://www.telemundopr.com/noticias/local/expertos-estudian-aumento-de-temperatura-en-banos-de-coamo/2035661/)

(www.youtube.com/watch?v=OGGpr2KtQZE)

(www.youtube.com/watch?v=T1EYX8_SVLU)

(https://www.youtube.com/watch?v=PqFYJQHzFzY)

(www.youtube.com/watch?v=-NeOTKwxCAQ)

              


Abstracts, Presentations, Reports:                        

              *indicates student author


(64) *Méndez Méndez, K., *Moore, A.K., *Ortíz-Silvestry, J., *Álvarez, Y., Hughes, K.S., and Granger, D.E., 2021, Chemical Weathering of Mafic and Ultramafic Volcanic Arc Bedrock in a Tropical Montane Setting, American Geophysical Union Annual Conference

(63) *Bayouth García, D., and Hughes, K.S., 2021, Effects of Widespread Mass Wasting Triggered by Hurricane María in the Lago Caonillas Watershed, Puerto Rico, American Geophysical Union Annual Conference

(62) *Irizarry Brugman, E., and Hughes, K.S., 2021, Soil and Sedimentation Dynamics of a Widespread Shallow Landsliding Event in a Tropical Montane Setting, American Geophysical Union Annual Conference

(61) *Villafañe-Pagán, J., and Hughes, K.S., Groundwater elevation changes during the 2020 Southwestern Puerto Rico seismic sequence, Geological Society of America Abstracts with Programs, Vol 53, No. 6.

(60) Hughes, K.S., 2021, Hurricane María Landslide Response, U.S. Interagency Coordination Committee on Landslide Hazards, 23-jun-2021.

(59) Hughes, K.S., *Irizarry Brugman, E.O., *Bayouth García, D., and Matos Rodríguez, M.,  2021, Examination of the Soil Mass Movement Risk Rating in Puerto Rico using the Hurricane María Landslide Inventory, National Cooperative Soil Survey National Conference, 08-10 June, 2021.

(58) Hughes, K.S., 2020, Atmospheric Event-Driven Liberation of Sediment at Mass Wasting Sites Across Puerto Rico: Short and Long Term Effects from Source to Sink, Invited Presentation, Department of Homeland Security Coastal Resilience Center, Department of Civil Engineering and Surveying, University of Puerto Rico at Mayagüez, 19-Nov-2020:  www.youtube.com/watch?v=0aQFGl6JDqg.

(57) Davis, L., *West, J.M., *Álvarez, Y., *Lugo, R., Hughes, K.S., Godt, J., and Peek, L., 2020, Collaborative Risk Communication for Landslides in Puerto Rico, American Geophysical Union Annual Conference.

(56) *Lugo Bendezú, R., *Álvarez Gandía, Y., *West, J., Davis, L., Hughes, K.S., Godt, J.W., and Peek, L.A., 2020, Collaborative Risk Communication for Landslides in Puerto Rico, Geological Society of America Abstracts with Programs, Vol 52, No. 6. 

(55) *Figueroa-Colón, T., Hudgins, T.R., and Hughes, K.S., 2020, Terrestrial Hydrologic Response to the 2020 Southwest Puerto Rico Seismic Sequence, Geological Society of America Abstracts with Programs, Vol 52, No. 6. 

(54) *Bayouth García, D., Hughes, K.S., Allstadt, K.E., Thompson, E.M., Morales-Vélez, A.C., *Irizarry Brugman, E.O., and *Cruz Vega, E.J., 2020, Documenting and Communicating Ground Failure Triggered by the 2020 Southwest Puerto Rico Seismic Sequence, Geological Society of America Abstracts with Programs, Vol 52, No. 6. 

(53)  Vanacore, E., Hughes, K.S., ten Brink, U.S., Hudgins, T.R., Fielding, E.J., Joyce, J., López-Venegas, A., Martinez-Cruzado, J.A., and Huérfano Moreno, V., 2020, Overview of Preliminary Investigations of the 2020 Southwest Puerto Rico Seismic Sequence, Geological Society of America Abstracts with Programs, Vol 52, No. 6. 

(52)  Thompson, E.M., Allstadt, K.E., Hughes, K.S., *Bayouth, D., *Cruz, E., *Irizarry, E., Grant, A., Perkins, J.P., and Cerovski-Darriau, C., 2020, Observations of Ground Failure in the 2020 M6.4 Indios, Puerto Rico Earthquake Sequence, Seismological Society of America Conference:  https://seismosoc.secure-platform.com/a/gallery/rounds/12/details/5794.

(51)  Pando, M.A., Morales-Vélez, A.C., and Hughes, K.S., 2020, Geotechnical Failures during the Puerto Rico 2020 M6.4 Earthquake and Sequence, Seismological Society of America Conference: https://seismosoc.secure-platform.com/a/solicitations/9/sessiongallery/270/application/5797.

(50)  Schulz, W.H.,  Hughes, K.S., Bessette-Kirton, E., Cerovski-Darriau, C., *Martínez Milian, G.O., *Bayouth García, D., Thomas, M.A., and Baum, R.L., 2019,  Factors contributing to hurricane-induced landslides in Puerto Rico:  Implications for hazards and sediment mobilization, American Geophysical Union Annual Conference. 

(49)  *Martínez, S., Gasparini, N.M., Lyons, N.J., Hughes, K.S.,, and *Bayouth García, D., 2019,  Semi-Automatic Landslide Detection using Sentinel-2 Imagery:  Case Study in the Añasco River Watershed, Puerto Rico, American Geophysical Union Annual Conference. 

(48) Hughes, K.S., 2019, Mass Wasting Driven by Tropical Cyclones:  Hurricane María's Topographic Signature in Puerto Rico, Invited Seminar Presentation, Department of Earth and Planetary Sciences, Purdue University, West Lafayette, IN, 5-December, 2019.

(47) *Lugo Bendezú, R., Álvarez Gandía, Y., Hughes, K.S., Davis, L.A., Godt, J.W., and Peek, L.A., 2019, Strategies for Communicating Landslide Risk in Puerto Rico, Geological Society of America Abstracts with Programs.

(46) *Santiago-Perez, Y., *Odom, W.E., and Hughes, K.S., 2019, Relict Caribbean Topography and Tectonically Triggered  Erosion Rates in the Cordillera Central of Puerto Rico, Geological Society of America Abstracts with Programs.

(45) *Rodríguez Feliciano, C.A., *Bayouth García, D., and Hughes, K.S., 2019, Volcume of Slope Failures caused by Hurricane María in Puerto Rico using LiDAR and SfM, Geological Society of American Abstracts with Programs.

(44) Hughes, K.S., and Schulz, W.C., 2019, A new Rainfall-Inducted Slope Failure Susceptibility Map for Puerto Rico, Colegio de Inginieros y Agrimensores de Puerto Rico Mega Viernes Civil, San Juan, PR, 5-April, 2019.

(43) Hughes, K.S.,  and Schulz, WC., 2019, A new Rainfall-Inducted Slope Failure Susceptibility Map for Puerto Rico, FEMA Caribbean Area Division GeoCon, San Juan, PR, 22-March, 2019.

(42) Hughes, K.S., 2019, Short and long term consequences of storm-induced mass wasting across Puerto Rico after Hurricane María, Invited Seminar Presentation, Department of Earth and Environmental Sciences, Tulane University, New Orleans, LA, 15-March, 2019.

(41) *Moul, M., and Hughes, K.S., 2018, Temporal and Kinematic insights into the Western Puerto Rico Fault System, American Geophysical Union Annual Conference.

(40) *Roig, C.I., and Hughes, K.S., 2018, Geochemistry of the Elk Hill Volcanic Complex and Pegmatite Belt, and their tectonic significance within the central Appalachian Piedmont, Virginia, American Geophysical Union Annual Conference.

(39) *Cáliz-Padilla, R., Hughes, K.S., Hudgins, T.R., and Restrepo, C., 2018, Petrographic analysis of the Bosque Enano Granite in the Sierra de las Minas, Guatemala, Geological Society of America Abstracts with Programs

(38) *Cancel Vázquez, S.M., *Irizarry Brugman, E.O., and Hughes, K.S., 2018, Reservoir Sedimentation estimates and landslide susceptibility in Puerto Rico after Hurricane María, Geological Society of America Abstracts with Programs

(37) *Santiago-Perez, Y., and Hughes, K.S., 2018, Proximity analysis of Rainfall induced landslide sites to road surfaces and fluvial channels during Hurricane María in Puerto Rico, Geological Society of America Abstracts with Programs

(36) *Lugo Bendezú, R., *Martinez, G., *Ortiz Carrero, P., *Torres Angleró, K., and Hughes, K.S., 2018, Assessing Puerto Rico's Physical Topography in Relation to Rainfall-induced Mass Wasting Sites post Hurricne María, Geological Society of America Abstracts with Programs

(35)  *Bayouth García, D., *Rodríguez Feliciano, C.A. and Hughes, K.S., 2018, Event-specific and annual Precipitation controls on Mass Wasting Sites in Puerto Rico after the passage of Hurricane María, Geological Society of America Abstracts with Programs

(34) *García López, X.A., *Soto Rios, S., *González del Valle, S., and Hughes, K.S., 2018, Quantification of the effect of Geology, Soil, and Land-use on landslides in Puerto Rico caused by Hurricane María in 2017, Geological Society of America Abstracts with Programs

(33) Morales Vélez, A.C., and Hughes, K.S., 2018,  Geotechnical Damages in Puerto Rico after the Passage of Hurricanes Irma and María, Módulo 4: Huracanes B, Mega Viernes Civil, Colegio de Ingenieros y Agrimensores de Puerto Rico; San Juan, Puerto Rico. (pdf)

(32) Hughes, K.S., and Morales Vélez, A.C., 2017, Characterization of Landslide Sites in Puerto Rico after Hurricanes Irma and María, American Geophysical Union Annual Conference, Abstract NH23E-2859. (pdf)

(31) *Vicens, E., Hughes, K.S., Joyce, J., and Ramirez, W., 2017, The Onset of Extensional Faulting in Western Puerto Rico at 15 Ma, Geological Society of America Abstracts with Programs, v. 49, no. 6.

(30) Hughes, K.S., Smith II, R.C., Miller, B.V., and Skema, V.W., 2017, The Ordovician Green Springs Pluton of Central VA:  Possible Source of Glaciogenic Cobbles in the Devonian Rockwell Formation of PA, MD, and WV?,  Geological Society of America Abstracts with Programs, v. 49, no. 3. 

(29) *Madera, A.D.,  and Hughes, K.S., 2017, Quantification of Mogote Asymmetry:  Arecibo, Puerto Rico, Geological Society of America Abstracts with Programs, v. 49, no. 3. 

(28) *Roig, C.I., and Hughes, K.S., 2017, Age and Tectonic Significance of the Elk Hill Volcanic Complex and Pegmatitie Belt, Central Appalachian Piedmont, Virginia, Geological Society of America Abstracts with Programs, v. 49, no. 3. 

(27) Hughes, K.S., 2017, Interior Geomorphology of Northwestern Puerto Rico:  San Sebastian to Arecibo, Field Trip Guide, 32nd annual Caribbean Geology Symposium, February 22-26, Mayagüez, Puerto Rico.

(26) Hughes, K.S., 2017,  Using 'Structure from Motion' for Geological Applications in Puerto Rico, 32nd annual Caribbean Geology Symposium, February 22-26, Mayagüez, Puerto Rico.

(25) *Gonzalez, E.L., *Madera, A.D., *Rodriguez Sanchez-Vahamonde, C.M., and Hughes, K.S., 2016, River Profiles and Uplift-Related Relict Landscapes of the Yauco, Guayanilla, and Tallaboa Basins, Southern Puerto Rico, Geological Society of America Abstracts with Programs, v. 48, no. 7.

(24)  Hughes, K.S., 2016,  Entrenched Meanders and  Stream Piracy in the Rio Añasco Watershed, Western Puerto Rico, 31st annual Caribbean Geology Symposium, March 7-8, Mayagüez, Puerto Rico.

(23)  Hughes, K.S., Pollock, J.C., and Hibbard, J.P., 2015, Hafnium isotopic analysis of the Chopawamsic Arc, Appalachian Piedmont of Virginia:  Geological Society of America Abstracts with Programs, v. XX, no. X, p. XX.

(22)  *Miranda Berrocales, V.M., Hughes, K.S., Pollock, J.C., and Hibbard, J.P., 2015, Origin of small granitoid bodies in the western Piedmont of central Virginia, Geological Society of America Abstracts with Programs, v. 47, no. 7, p. 807.

(21)  *Rivera Banuchi, V.B., and Hughes, K.S.,  2015, Stream  profiles of South Anna River tributaries to investigate possible long-lived seismically induced uplift in the Central Virginia Seismic Zone:  Geological Society of America Abstracts with Programs, v. 47, no. 7, p. 745.

(20)  Hughes, K.S., 2014, Does the Chopawamsic Fault Represent the Main Iapetan Suture in the Southern Appalachian Orogen? Geology, Geochemistry, and Geochronology of the Western Piedmont of Virginia and Insight into Local Intraplate Seismicity, unpublished North Carolina State University Doctoral Dissertation, 321 p., http://www.lib.ncsu.edu/resolver/1840.16/9521.  (pdf)

(19)  Hughes, K.S., 2014, Does the Chopawamsic fault represent the main Iapetan suture in the southern Appalachian orogen? Geology, geochemistry, and geochronology of the western Piedmont of Virginia, Virginia Geological Symposium, Charlottesville, Virginia; April, 2014. 

(18)  Hughes, K.S., 2014, NCSU Geology Field Camp:  Capstone undergraduate education in the American Cordillera; Invited talk, Tar Heel Gem and Mineral Club, Raleigh, NC; February 18th, 2014. 

(17)  Hughes, K.S., Hibbard, J. Miller, B.V., and Pollock, J., 2013, Late Ordovician accretion of the Chopawamsic arc in the western Piedmont of Virginia:  U-Pb zircon geochronology of meta-igneous and meta-sedimentary rocks across the Chopawamsic fault:  Geological Society of America Abstracts with Programs, v. 45, no. 7, p. 584-612. (link) (pdf)

(16)  Hughes, S., Hibbard, J., and Pollock, J., 2012, Detrital zircon geochronology across the Chopawamsic fault, western Piedmont of Virginia, and its bearing on early Paleozoic tectonic development in the southern Appalachians:  Geological Society of America Abstracts with Programs, v. 44, no. 7, p. 282. (link) (pdf)

(15)  Hughes, S., and Hibbard, J., 2012, Relict Paleozoic faults in the epicentral area of the August 23, 2011 Virginia earthquake:  Assessing potential sources of reactivation with field observations:  Geological Society of America Abstracts with Programs, v. 44, no. 7, p. 380. (link) (pdf)

(14)  Hughes, S., Terblanche, A., Nance, D., Hibbard, J., and Miller, B.V., 2012, New observations on the Chopawamsic fault, an early Paleozoic terrane boundary in the Western Piedmont of Virginia, Geological Society of America Abstracts with Programs, Vol. 44, No. 4, p. 29. (link) (pdf)

(13)  Hibbard, J., Hughes, S., Miller, B.V., Hames, W.E., and Waldron, J.W.F., 2012, Translational odyssey of Carolinia:  Paleozoic bulk kinematic reversal in the Southern Appalachians, Geological Society of America Abstracts with Programs, Vol. 44, No. 4, p. 23. (link)

(12)  Hughes, S., and Hibbard, J., 2012, Relict Paleozoic faults in the epicentral area of the August 23, 2011 Virginia earthquake; geology in the Ferncliff, VA quadrangle, Geological Society of America Abstracts with Programs, Vol. 44, No. 4, p. 14. (link) (pdf)

(11)  Hughes, S., 2011, Geology research in the vicinity of the Virginia Earthquake, Virginia Association of Science Teachers Annual Meeting, Roanoke, VA. 

(10)  Hughes, S., 2011, Geology of the northern half of the Ferncliff 7.5′ quadrangle, United States Geological Survey EDMAP deliverable, 1 sheet, 1:24,000. (pdf)

(9)  Hughes, S., and Hibbard, J., 2011, The Ellisville granodiorite:  A stitching pluton in the Western Piedmont of Virginia?, Geological Society of America Abstracts with Programs, Vol. 43, No. 2, p. 31. (link) (pdf)

(8)  Hughes, S., and Hibbard, J., 2011, Mapping and ancillary studies in the Ferncliff quadrangle, Virginia Geological Symposium, Charlottesville, Virginia; April, 2011. 

(7)  Gallen, S., Wegmann, K.W., Frankel, K.L, Hughes, S., Lewis, R.Q., Lyons, N.J., Paris, P., Ross, K, Bauer, J.B., and Witt, A.C., 2011, Hillslope response to knickpoint migration in the Southern Appalachians:  implications for the evolution of post-orogenic landscapes, Geological Society of America Abstracts with Programs, Vol. 43, No. 2, p. 84. (link) (pdf)

(6)  Hughes, S., 2010, The relationship between the Chopawamsic fault and Ellisville pluton, near Ferncliff, VA, North Carolina State University Field Defense, November 22, 2010, 19p. (pdf)

(5)  Hughes, S., 2010, The Chopawamsic Fault and Ellisville Pluton, Central Virginia Piedmont, Sigma Xi Annual Meeting and International Research Conference, Raleigh, NC. 

(4)  Zimmer, M.J., Mills, R.D., Coleman, D.S., McIntosh, W., and Hughes, S., 2010, Using the intrusive record to understand caldera magmatism:  The geochronology and geochemistry of the Mt. Aetna caldera complex, central Colorado, Geological Society of America Abstracts with Programs, Vol. 42, No. 5, p. 655. (link)

(3)  Almquist, K, Gallen, S., Hughes, S., Lyda, A., Lyons, N, McConnell, D.A., Ross, K, and Whitley, J., 2010, The impact of lab style, course times, and teacher gender on course evaluations, Geological Society of America Abstracts with Programs, Vol. 42, No. 5, p. 532. (link)

(2)  Gallen, S., Hughes, S., Lewis, R.Q., Lyons, N, Maas, J., Munoz, M., Paris, P., Ross, K., and Wegmann, K., 2010, Hillslope response to knickpoint migration:  An investigation of slope stability in the Cullasaja River basin, Geological Society of America Abstracts with Programs, Vol. 42, No. 1, p. 189.  (link)

(1)  Hughes, S., Pluton-Tuff geochemical analysis:  Examining the relationship in the Southern         Rocky Mountains Volcanic Field:  University of North Carolina at Chapel Hill, Undergraduate Research report (Advisors: Ryan Mills and Drew Coleman), 10 p.