JEFFREY S. MARSHALL, Ph.D.

 

Geological Sciences Department

Cal Poly Pomona University

3801 West Temple Ave.

Pomona, CA  91768

(909) 869-3461

 

e-mail:  marshall@csupomona.edu

 

home page:  http://www.csupomona.edu/~marshall/

 

(last updated 7/08)

 

 

EDUCATION

 

Ph.D. (2000) - Pennsylvania State University, Geosciences Department

• Research advisors: Dr. Thomas W. Gardner, and Dr. Donald M. Fisher

• Dissertation: Active tectonics and Quaternary landscape evolution across the western Panama block, Costa Rica, Central America

                    

M.S.  (1991) - University of California, Santa Cruz, Earth Sciences Department

• Research advisors: Dr. Robert S. Anderson, and Dr. Gary B. Griggs

• Thesis: Neotectonics of the Nicoya Peninsula, Costa Rica: A Look at Forearc Response to Subduction at the Middle America Trench

 

B.A.  (1984) - University of California, Santa Barbara, Geological Sciences Department

• Academic advisors: Dr. Richard H. Sibson, and Dr. Arthur G. Sylvester

 

 

PROFESSIONAL EXPERIENCE

 

Associate Professor (2006-present)

      • Cal Poly Pomona University, Geological Sciences Department - Pomona, CA

Assistant Professor (2001-2006)

      • Cal Poly Pomona University, Geological Sciences Department - Pomona, CA

Visiting Assistant Professor / Instructor (1998-2001)

      • Franklin & Marshall College, Geosciences Department - Lancaster, PA

Graduate Research & Teaching Assistant (1993-1998)

      • Pennsylvania State University, Geosciences Department - University Park, PA

Environmental Geologist (1991-1992)

      • Harding Lawson Associates - Novato, CA

Engineering Geologist (1989-1991)

      • Gary Griggs Associates - Santa Cruz, CA

Graduate Research & Teaching Assistant (1988-1991)

      • University of California Santa Cruz, Earth Sciences Department - Santa Cruz, CA 

Peace Corps Volunteer (1987-1988)

    • U.S. Peace Corps - Costa Rica, Central America

Geologic Field Mapping Assistant (1986)

      • Cal Tech, Geological Sciences Division & U.S. Forest Service - Ketchikan, Alaska


 

TEACHING

 

            Cal Poly Pomona University – Associate & Assistant Professor (2001-present)

   • Natural Disasters

   • Principles of Geology

   • Engineering Geology

   • Applied Geomorphology

   • Watershed Hydrology Field Module

   • Tectonic Geomorphology Field Module

   • Costa Rica Geology & Tectonics Field Module

   • Costa Rica Tropical Field Studies in Biology

   • Earth Science Education (service learning course for elementary education majors)

   • Earth Science Content Workshops (professional development for local teachers)

 

            Franklin & Marshall College – Visiting Assistant Professor & Instructor (1998-2001)

   • Earth, Environment & Humanity (environmental geology)

   • Surface of the Earth (geomorphology)

   • Water Resources (hydrogeology)

   • Stream Restoration - Environmental Problems Capstone Seminar

 

            Pennsylvania State University – Graduate Teaching Assistant (1993-1998)

   • Geomorphology

   • The Sea Around Us (oceanography) 

 

            University of California, Santa Cruz – Graduate Teaching Assistant (1988-1991)

   • Geomorphology

   • Coastal Geology

   • Hydrology

   • Field Methods

   • Summer Field Camp

 

 

RESEARCH INTERESTS

 

      • Earth surface processes: Quaternary geology, geomorphology, and sedimentology

      • tectonic geomorphology, fault kinematics, earthquake hazards, paleo-seismology

      • convergent margin tectonics, geochronology, and landscape evolution (esp. Central America)

      • geomorphology of marine and fluvial terraces, paleo-shore deposits, river gravels

      • coastal processes, beach sediments, wave erosion, wavecut platforms, coastal cliffs 

      • sedimentology and tectonic geomorphology of mountain-front alluvial fans

      • soil geomorphology, rock weathering, hillslope erosion, regional denudation

      • fluvial geomorphology, stream channel hydrology, erosion and sediment transport

      • watershed and stream restoration: applications of geomorphic and sedimentological principles

      • flood dynamics, flood hazards, integrated watershed management and flood-control engineering

      • landslide hazards and geomorphology (landslides, debris flows, and coastal cliff failure)

      • landscape and watershed response to climate change and human land-use

      • geomorphic applications of remote sensing, GPS and GIS, numerical modeling

 

 

RESEARCH EXPERIENCE

 

San Gabriel Mountain Foothills, California – Research with undergraduate students (2003-present)

      • tectonic geomorphology and sedimentology of mountain-front alluvial fans

Nicoya Peninsula, Costa Rica – Research with undergraduate students (2001-present)

      • marine terrace uplift, upper-plate faulting, and tectonic segmentation of the Nicoya seismic gap

   • stratigraphy and geochronology of uplifted Quaternary shallow marine and beach sediments

   • geomorphology, petrology, and provenance of Holocene beach sands and beachrock horizons

Cape Liptrap, Victoria, Australia – Keck Geology Consortium student project (2002-2003)

      • coastal tectonics, marine terrace uplift, and sedimentology of Pleistocene aeolianites

Lancaster County, Pennsylvania – Keck Geology Consortium student project (2001-2002)

      • geomorphic field assessment and GIS mapping of stream restoration projects

Nicoya Peninsula, Costa Rica – Keck Geology Consortium student project (1999-2001)

      • coastal tectonics and marine terrace uplift related to seamount subduction

Keewaydin Island, Rookery Bay, Florida – Keck Geology Consortium student project (1999-2000)

      • geomorphic, stratigraphic and historical air photo analysis of barrier island sediment accretion

Pacific Coast, Nicaragua – Research with colleagues (1999-2000)

      • tectonic geomorphology, structure, and stratigraphy of the Nicaraguan Pacific margin 

Michoacán and Guerrero, México – Research with colleagues (1998-1999)

      • coastal tectonics and geomorphology along the 1985 Mexico City earthquake rupture zone

Central Costa Rica – Ph.D. dissertation fieldwork (1993-1998)

      • fault kinematics and tectonic geomorphology of the Central Costa Rica deformed belt

      • active tectonics, coastal uplift, and correlation of marine and fluvial terraces, Pacific fore arc

      • volcanic stratigraphy, geochronology, and landscape evolution of the central volcanic arc

Nicoya Peninsula, Costa Rica – M.S. thesis fieldwork (1988-1991)

      • tectonic geomorphology and sedimentology of uplifted Quaternary marine terraces

      • 1950 Nicoya earthquake: eyewitness accounts of coseismic uplift, liquefaction, and other effects

Santa Cruz Mountains, California – graduate research assistant (1989-1991)

      • earthquake-induced ground cracking and landslide hazards, 1989 Loma Prieta earthquake

Monterey Bay and Santa Cruz Coastline, California – graduate research assistant (1988-1991)

      • beach erosion and longshore sediment transport near concrete and rip-rap sea walls

      • hillslope sediment diffusion and channel incision on marine terrace landscape

      • flow dynamics of coastal dune sands (laboratory simulation)

Tongass National Forest, Southeast Alaska – field assistant (1986)

      • geologic mapping of Taku terrane: implications for accretionary evolution of southeast Alaska

 

 

STUDENT RESEARCH ADVISING

 

Graduate Students:

Eli LaFromboise, California State Universtiy, Northridge (2006-present)

      • M.S. thesis:  Seismotectonics and earthquake hazards of the Nicoya Peninsula, Costa Rica

Robyn Gerth, University of California Santa Cruz, (1999-2000)

      • M.S. thesis: La Boquita Terrace, Nicaragua: Evidence for uplift of the central Pacific coast

Peter Sak, Pennsylvania State University, (1996-99)

      • M.S. thesis: Landscape evolution and structure of the central Pacific coast, Costa Rica

 

Undergraduate Students:

Shawn Morrish, Cal Poly Pomona University (2008-present)

      • senior thesis: Tectonic geomorphology of late Pleistocene fluvial and marine terraces, Río Ora and Puerto Carrillo, Nicoya Peninsula, Costa Rica

Peter Piestrzeniewicz, Cal Poly Pomona University (2007-present)

      • senior thesis: Tectonic geomorphology and digital terrain analysis using ArcGIS: Nicoya Peninsula, Costa Rica

Robert Ellis, Cal Poly Pomona University (2006-08) – M. Van Buskirk & E. Prete Jr. Scholarships

      • senior thesis: Tectonic geomorphology and provenance of uplifted alluvial gravel deposits, San Antonio Canyon and Claremont foothills, San Gabriel Mountains, Southern California

Allison Ruotolo, Cal Poly Pomona University (2006-08) – M. Van Buskirk Scholarship

      • senior thesis: Tectonic geomorphology and clast provenance of uplifted alluvial fan gravels, San Gabriel Mountain foothills, eastern Los Angeles County, California

John Utick, Cal Poly Pomona Univ. (2005-08) – Puente Hills Gem & Mineral Society Scholarship

      • senior thesis:  Geomorphology, petrology, and provenance of Holocene beach sands, Nicoya Peninsula, Costa Rica

Eli LaFromboise, Cal Poly Pomona University (2005-06) – Ernest Prete, Jr. Scholarship

      • senior thesis:  Variations in Quaternary coastal emergence patterns along the Nicoya Peninsula seismic gap, Costa Rica

Lauren Annis, Cal Poly Pomona University (2004-05)

      • senior thesis:  Age correlation of uplifted Quaternary marine terraces, Nicoya Pen., Costa Rica

Jonathan (Fookgiin) Khaw, Cal Poly Pomona University (2003-05) – M. Van Buskirk Scholarship

      • senior thesis: Coastal tectonics & marine terraces, Northern Nicoya Peninsula, Costa Rica

Chris Horsley, Cal Poly Pomona University (2003-04) – Ernest Prete, Jr. Scholarship

      • senior thesis: Hydrogeology of the Chino Basin Aquifer, California

Terri Amborn, Cal Poly Pomona University (2002-03) – Margaret Van Buskirk Scholarship

      • senior thesis (Keck Geology Consortium field project): Evidence for active tectonics along the Australian passive margin: Quaternary marine terraces of Waratah Bay, Victoria

Aubree Gallaher, Franklin & Marshall College (2000-01)

      • senior thesis: The effects of urban growth on a barrier island beach, Ocean City, Maryland

Karyn Novakowski, Franklin & Marshall College (1999-2000)

      • senior thesis (Keck Geology Consortium field project): Barrier island accretion and geomorphic evolution of Keewaydin Island, Collier County, Florida

Bhavani Bee, Franklin & Marshall College (1998-99)

      • senior thesis (Keck Geology Consortium field project): Rapid Quaternary uplift of marine terraces: Cabo Blanco to Montezuma, Península de Nicoya, Costa Rica

Lauren Brown, Franklin & Marshall College (1998-99) – John Marshall Scholarship

      • senior thesis: Environmental and cultural impacts of eco-tourism in Costa Rica, Central America: A case study at Monteverde Cloud Forest Reserve

 

 

PROFESSIONAL SERVICE & HONORS

Professional Societies & Programs

      • Council on Undergraduate Research (CUR), Geosciences Division Councilor (2004-present)

     • Early Career Faculty Case Study – On the Cutting Edge Program, National Association of Geoscience Teachers (NAGT) (2006-present))

      • Peer reviewer, GSA Bulletin, GSA Books, Geomorphology, G-Cubed, Am. J. Sci. (1996-present)

      • NSF Proposal Reviewer & Panelist – Tectonics Program, International Research and Education Program, Course Curriculum and Laboratory Improvement (CCLI) Program (2005-present)

       • Technical Session Chair – National & Regional Professional Meetings: Geological Society of America (GSA) & American Geophysical Union (AGU) (2003-present)

      • Geosciences Division Research Mentor & Judge - Society for Advancement of Chicanos and Native Americans in Science (SACNAS) (2004-present)

      • NSF MARGINS program, Co-chair of Central American geologic hazards working group (2001)

      • NSF MARGINS program Field trip leader, Costa Rica workshop, SubFac & SEIZE Initiatives (2001)

Keck Geology Consortium

      • Faculty sponsor (2002-03) for student on undergraduate summer research project, Active tectonics of the Australian passive margin, Cape Liptrap, Victoria, Australia

      • Project faculty (2001-02) for undergraduate summer research project, Watershed restoration in Lancaster County, Pennsylvania

      • Workshop faculty (2001), Watershed assessment, Carleton College, Northfield, Minnesota

      • Faculty sponsor (1999-2000) for student on undergraduate summer research project, Coastal wetland and barrier island dynamics, Rookery Bay Reserve, Florida

      • Workshop faculty (1999), Costa Rica tectonics, Trinity Univ., San Antonio, Texas

      • Project faculty (1998-99) for undergraduate summer research project, Coastal geomorphology and tectonics, Nicoya Peninsula, Costa Rica, Central America

Cal Poly Pomona University (2001-present)

      • Cal Poly Pomona University Provost’s Teacher-Scholar Award

      • Director, Cal Poly Pomona College of Science International Field Studies Program

      • Senator, Cal Poly Pomona University Academic Senate

      • Chair, University General Education Assessment Committee for Physical Sciences

      • Faculty Advisory Board, Cal Poly Pomona International Studies Minor

      • Faculty Advisory Board, Cal Poly Pomona Center for GIS Research

      • Campus liaison, Council on Undergraduate Research

      • University Committees - General Education, Academic Programs, and Faculty Affairs

      • College Committees – Dean’s Prioritization Advisory, Instructional Support, Science Education

      • Director, Cal Poly Pomona Earth Science Education Service Learning Project

      • Faculty, Center for Science Education Teacher Training Workshops

      • Faculty Advisor, Cal Poly Pomona Geology Club

      • Coordinator, Geological Sciences Department visiting speaker series

      • Field trip leader, Geological Sciences Dept. annual student trip & alumni reunion trip

      • Teacher Quality Enhancement Grant (TQE) faculty working group

Franklin & Marshall College, Lancaster, PA (1998-2001)

      • Faculty leader, Geosciences and Environmental Studies field excursion to Costa Rica

      • Center for Liberal Arts & Society: Organizing committee, F&M Global Warming Colloquium

      • Faculty director, Environmental Studies Capstone Seminar - Watershed Restoration

      • Little Conestoga Watershed Alliance, Stream Restoration Working Group

      • Chesapeake Bay Watershed Educ. Program, Stream Restoration Public Education & Outreach

Pennsylvania State University (1993-98)

      • Laboratory coordinator & T.A. supervisor, Geosciences oceanography course

      • Graduate student colloquium committee

      • Field trip leader, new graduate student orientation

      • Instructor, Penn State Geosciences Day for elementary school students

      • Public radio programmer, music & public affairs, WPSU State College, PA

University of California, Santa Cruz (1988-92)

      • Co-founder UCSC Earth Sciences Tea Fund endowment for academic discussion

      • Bilingual community earthquake education outreach, Loma Prieta earthquake

      • Volunteer landslide mapping team, Loma Prieta earthquake, Santa Cruz County

      • Author & photographer, educational slide set & web site, Loma Prieta earthquake

      • Field trip consultant, Loma Prieta earthquake, Seismological Soc. of Amer. meeting

      • Field trip leader, Earth Sci. Alumni Reunion, Downtown Santa Cruz in Wake of Quake of '89

      • Public radio programmer, music & public affairs, KZSC Santa Cruz


 

PROFESSIONAL AFFILIATIONS

 

• Council on Undergraduate Research

• Geological Society of America

• American Geophysical Union

• International Association of Geomorphologists

• American Quaternary Association

• Society for the Advancement of Chicanos and Native Americans in Science

• Unión Geofísica Mexicana

• Asociación Latinoamericana de Ciencias de la Tierra

• National Association of Geoscience Teachers

• National Peace Corps Association

 

 

LANGUAGE SKILLS

 

• fluent in English & Spanish

• working knowledge of German

 

 

PH.D. DISSERTATION  & M.S. THESIS

 

Marshall, J.S., 2000, Active tectonics and Quaternary landscape evolution across the western Panama block, Costa Rica, Central America, [Ph.D. Thesis]: Pennsylvania State University, 304 p.

Advisors: Dr. Thomas W. Gardner and Dr. Donald M. Fisher

 

Marshall, J.S., 1991, Neotectonics of the Nicoya Peninsula, Costa Rica: A Look at Forearc Response to Subduction at the Middle America Trench, [M.S. Thesis]: University of California Santa Cruz, 196 p.

Advisor: Dr. Robert S. Anderson

 

 

PUBLICATIONS

research manuscripts and reports:

 

Marshall, J.S., LaFromboise, E.J., Utick, J.D., Khaw, F., Morrish, S.C., Piestrzeniewicz, P., Gardner, T.W., and Protti, J.M., (in preparation), Tectonic geomorphology and forearc deformation along the Nicoya Peninsula seismic gap, Costa Rica.

 

Montero, W., Marshall, J., Kruse, S., Wetmore, P., and Lewis, J., 2008 (in review), Neotectonic faulting and fore arc sliver motion along the Atirro-Río Sucio fault system, Costa Rica, Central America: Geological Society of America Bulletin.

 

Sak, P.B., Fisher, D.M., Gardner, T.W., Marshall, J.S., and Lafemina, P., 2008 (in review), Relationship among rough crust subduction, fore arc kinematics, and Quaternary uplift rates, Costa Rican segment of the Middle American Trench: Geological Society of America Bulletin.

 

Gardner, T., Webb, J., Pezzia, C., *Amborn, T., Tunnell, R., Flanagan, S., Kapostasy, D., Merritts, D., Marshall, J., Fabel, D., Cupper, M., 2008 (in review), Deformation of Late Neogene and Quaternary Marine Terraces, Cape Liptrap, southeastern Australia: Quaternary Science Reviews.

 

López, A., Marshall, J.S., Chinchilla, A.L., Sak, P.B., Chiesa, S., Meschede, M., Alvarado, G.E., Calderón, M., Gazel, E., Villegas, A., and Barquero, R., 2008, The Sigma Project stress field map of Costa Rica: World Stress Map, Release 2008: Heidelberg Academy of Sciences and Humanities, and Geophysical Institute, University of Karlsruhe, Germany.

 

Marshall, J.S., 2007, Geomorphology and physiographic provinces of Central America: in Bundschuh, J. and Alvarado, G.E., eds., Central America: Geology, Resources and Hazards, Taylor & Francis Group, London, p. 75-122.

 

Marshall, J.S., Idleman, B.D., Gardner, T.W., and Fisher, D.M., 2003, Landscape evolution within a retreating volcanic arc, Costa Rica, Central America: Geology, v. 31, p. 419-422.

 

De Wet, A.P., Marshall, J.S., Merritts, D., and Weaver, S., 2002, Little Conestoga Creek Watershed Assessment, Lancaster, Pennsylvania: Keck Geology Consortium 15th Annual Undergraduate Research Symposium Proceedings, p. 165-169.

 

Gardner, T.W., Marshall, J.S., Merritts, D.J., Protti, M., Bee, B., Burgette, R., Burton, E., Cooke, J., Kehrwald, N., Fisher, D., and Sak, P., 2001, Holocene fore arc block rotation in response to seamount subduction, southeastern Península de Nicoya, Costa Rica: Geology, v. 29, p. 151-154.

 

Marshall, J.S., 2001, Natural Hazards and Effects on Local Populations: Applications of NSF MARGINS research to hazards mitigation in Central America: in Silver, E. and Dixon, T., eds., NSF MARGINS Program Workshop Report: Central America Seismogenic Zone and Subduction Factory Initiatives, 15 p.

 

Marshall, J.S., Gardner, T.W., Fisher, D.M., Sak, P.B., and Protti, M., 2001, Quaternary neotectonics of the Costa Rican coastal fore arc: Field Guide for National Science Foundation MARGINS Program Workshop on Central American Tectonics, Heredia, Costa Rica, July 2001, 62 p.

 

Marshall, J.S., Fisher, D.M., and Gardner, T.W., 2000, Central Costa Rica deformed belt: Kinematics of diffuse faulting across the western Panama block, Tectonics, v. 19, p. 468-492.

 

Gardner, T.W., Beutner, E.C., Marshall, J.S., Merritts, D.J., and Protti, M., 1999, Effects of seamount subduction on fore arc kinematics and origin of the Nicoya Complex, Costa Rica: 12th Keck Research Symposium in Geology Proceedings, p. 161-167.

 

Fisher, D.M., Gardner, T.W., Marshall, J.S., Sak, P.B., and Protti, M., 1998, Effect of subducting sea-floor roughness on fore-arc kinematics, Pacific coast, Costa Rica: Geology, v. 26, p. 467-470.

 

Marshall, J.S., and Anderson, R.S., 1995, Quaternary uplift and seismic cycle deformation, Península de Nicoya, Costa Rica: Geological Society of America Bulletin, v. 107, p. 463-473.

 

Fisher, D.M., Gardner, T.W., Marshall, J.S., and Montero, W., 1994, Kinematics associated with late Cenozoic deformation in central Costa Rica: Western boundary of the Panama microplate: Geology, v. 22, p. 263-266.

 

Marshall, J.S., and Griggs, G.B., 1991, Ground crack monitoring program, in Keefer, D.K., ed., Geologic hazards in the Summit Ridge area, Santa Cruz Mountains, Santa Cruz County, California, evaluated in response to the October 17, 1989, Loma Prieta earthquake: Report of the Technical Advisory Group: U.S. Geological Survey Open-File Report 91-618, p. 210-221.

 

Griggs, G.B., Marshall, J.S., Rosenbloom, N.A., and Anderson, R.S., 1991, Ground cracking in the Santa Cruz Mountains generated by the October 17, 1989 earthquake, in Baldwin, J.E. and Sitar, N., eds., Loma Prieta earthquake: Engineering geologic perspectives: Association of Engineering Geologists Special Publication #1, p. 25-41.

 

Griggs, G.B., Rosenbloom, N.A., and Marshall, J.S., 1990, Investigation and monitoring of ground cracks and landslides initiated by the 10/17/89 Loma Prieta earthquake: Final report to the Army Corps of Engineers: Santa Cruz, California, Gary Griggs Associates, 216 p.

 

Marshall, J.S., 1990, History of landsliding and ground cracking in the Santa Cruz Mountains associated with the earthquakes of 1865, 1868, and 1906: Santa Cruz, California, Gary Griggs Associates, 26 p.

 

field guides:

 

Marshall, J.S., 2004, Field guide to the San Antonio Canyon Watershed, San Gabriel Mountains, Southern California: Geological Sciences Department, Cal Poly Pomona University, 23 p.

 

Marshall, J.S., 2002, Tectonic Geomorphology of the San Diego County Coastal Zone, Field trip guide: Geological Sciences Department, Cal Poly Pomona University, 35 p.

 

Marshall, J.S., 1999, Field guide to the stream restoration projects of Lititz Run, Lancaster County, Pennsylvania: Geosciences Department, Franklin & Marshall College, 6 p.

 

Marshall, J.S., 1999, Field guide to the Tucquan Creek watershed, Lancaster County, Pennsylvania: Geosciences Department, Franklin & Marshall College, 11 p.

 

Marshall, J.S., White, T.S., and Alley, R.B., 1997, Karst geomorphology of the Nittany Valley area, Central Pennsylvania, Field trip guide: Geosciences Department, Pennsylvania State University, 40 p.

 

Marshall, J.S., Anderson, R.S., and Weber, G.E., 1990, Geomorphology of the San Andreas fault zone, Field trip guide: Earth Sciences Department, University of California Santa Cruz, 32 p.

 

Marshall, J.S., 1990, Tour of downtown Santa Cruz in the wake of the quake of '89, Field trip guide for the 1990 alumni reunion, Earth Sciences Department, University of California Santa Cruz, 18 p.

 

text books:

 

Nourse, J.A., Marshall, J.S., and Berry, D.R., 2003, Practical Earth Science Exercises, 2nd Edition: Dubuque, IA, Kendall/Hunt Publishing Co., 118 p.

 

abstracts:

 

Marshall, J.S., LaFromboise, E.J., Utick, J.D., Khaw, F., Morrish, S.C., Piestrzeniewicz, P., Protti, M., Gardner, T.W., Sak, P.B., Fisher, D.M., and Spotila, J.A., 2008, Coastal tectonics of the Nicoya Peninsula seismic gap, Costa Rica: Geological Society of America, Abstracts with Programs, v. 40.

 

Sak, P., Fisher, D., Gardner, T., Marshall, J., and LaFemina, P., 2008, Relationship among rough crust subduction, forearc kinematics, and Quaternary uplift rates, Costa Rican segment of the Middle America Trench: Geological Society of America, Abstracts with Programs, v. 40.

 

Marshall, J.S., LaFromboise, E.J., Utick, J.D., Khaw, F., Morrish, S.C., Piestrzeniewicz, P., Gardner, T.W., Protti, J.M., and Spotila, J.A., 2008, Tectonic geomorphology and paleoseismology along the Nicoya Peninsula seismogenic zone, Costa Rica: NSF MARGINS Program, Seismogenic Zone Experiment (SEIZE) Workshop, Mt. Hood, Oregon, 2008.

 

Marshall, J.S., LaFromboise, E.J., Utick, J.D., Khaw, F., Morrish, S.C., Piestrzeniewicz, P., Gilbert, R.C., Gardner, T.W., and Protti, J.M., 2008, Tectonic geomorphology and forearc deformation along the Nicoya Peninsula seismic gap, Costa Rica: Resumenes del IX Congreso Geológico de América Central, San José, Costa Rica, 2008.

 

López, A., Marshall, J.S., Chinchilla, A.L., Sak, P.B., Chiesa, S., Alvarado, G.E., Gazel, E., 2008, Stress field map of Costa Rica: The Sigma Project: Resumenes del IX Congreso Geológico de América Central, San José, Costa Rica, 2008.

 

Ruotolo, A.M., Ellis, R.A., and Marshall, J.S., 2008, Tectonic geomorphology and clast provenance of uplifted alluvial fan gravels, San Gabriel Mountain Foothills, eastern, Los Angeles County, California: Geological Society of America, Abstracts with Programs, v. 40, no. 1, Abs. 16-1, p. 64.

 

Marshall, J.S., LaFromboise, E.J., Gardner, T.W., and Protti, M., 2007, Segmented fore arc deformation along the Nicoya Peninsula seismic gap, Costa Rica: Eos, Transactions, American Geophysical Union, v. 88, Fall Meeting Supplement, Abs T53A-1121, 2007.

 

Marshall, J.S., 2007, Riding the waves of San Andreas: Geologic and engineering aspects of the 17 October 1989 Loma Prieta Earthquake, Santa Cruz, California: Association of Environmental and Engineering Geologists, Inland Empire Chapter Newsletter, v. 3, no. 10, October 2007.

 

Marshall, J.S., LaFromboise, E.J., Gardner, T.W., and Protti, M., 2007, Upper plate faulting and uplift along the Nicoya Peninsula seismic gap, northern Costa Rica fore arc: NSF MARGINS Program, Central America Focus-Site Workshop, Heredia, Costa Rica, 2007.

 

Gardner, T., Pezzia, C., Amborn, T., Tunnell, R., Flanagan, S., Merritts, D., Marshall, J., Webb, J., Fabel, D., Cupper, M., 2007, Deformation of Late Neogene and Quaternary Marine Terraces, Cape Liptrap, Southeastern Victoria, Australia: XVII INQUA Congress, International Quaternary Association, Cairns, Australia, 2007.

 

Ruotolo, A.M., Ellis, R.A., and Marshall, J.S., 2007, Geomorphology and tectonics of uplifted alluvial fan remnants along the San Gabriel Mountain Foothills, San Dimas and La Verne, Los Angeles County, California: Cal Poly Pomona University, College of Science 2nd Annual Undergraduate Research Symposium, 2007.

 

Sak, P.B., Fisher, D.M., Gardner, T.W., Lafemina, P., and Marshall, J.S., 2006, Interseismic coupling, Quaternary uplift rates, and fore arc deformation along the Costa Rican segment of the Middle America Trench: Eos, Transactions, American Geophysical Union, v. 87, Fall Meeting Supplement Abs. T21D-0445.

 

Singer, J., and Marshall, J., 2006, The Los Angeles and Buffalo Rivers: Restoration of urban river systems and opportunities for student learning: Geological Society of America, Abstracts with Programs, v.38, no.5, Abs. 88-7.

 

Gardner, T., Pezzia, C., Amborn, T., Tunnell, R., Flanagan, S., Merritts, D., Marshall, J., Webb, J., Fabel, D., Cupper, M., 2006, Intraplate deformation of late Neogene and Quternary marine terraces, Cape Liptrap, southeastern Victoria, Australia: Geological Society of America, Abstracts with Programs, v. 38, no. 5, Abs. 24-11.

 

Ellis, R.A., Ruotolo, A.M., and Marshall, J.S., 2006, Quaternary alluvial fan deposition and active faulting along the San Gabriel Mountain front, San Dimas and Marshall Canyons, Los Angeles County, California: Geological Society of America, Abstracts with Programs, v. 38, no. 5, p. 8, Abs. 6-3.

 

Utick, J.D., Marshall, J.S., and LaFromboise, E.J., 2006, Geomorphology and petrology of Holocene beach deposits and adjacent basaltic bedrock, Northern Nicoya Peninsula, Costa Rica: Geological Society of America, Abstracts with Programs, v. 38, no. 5, p. 8, Abs. 6-2.

 

LaFromboise, E.J., Marshall, J.S., and Utick, J.D., 2006, Differential upper plate deformation in response to contrasts in subducting seafloor roughness, Nicoya Peninsula, Costa Rica: Geological Society of America, Abstracts with Programs, v. 38, no. 5, p. 8, Abs. 6-1.

 

Marshall, J.S., LaFromboise, E.J., Utick, J.D., 2006, In the wake of flat subduction: Upper-plate tectonics across a steep to flat slab transition, Pacific margin, Costa Rica, Central America: Backbone of the Americas, Patagonia to Alaska, 3-7 April 2006, Mendoza, Argentina, GSA Specialty Meetings Abstracts with Programs, No. 2, p. 38, Abs. 3-12.

 

Marshall, J.S., Gardner, T.W., and Protti, M., 2005, International field research with undergraduate students: Investigating active tectonics of the Nicoya Peninsula, Costa Rica: Eos, Transactions, American Geophysical Union, v. 86(52), Fall Meeting Supplement, Abs. ED41B-03.

 

Marshall, J.S., 2005, Costa Rica, Central America: A prime destination for international Earth science field experience: Geological Society of America, Abstracts with Programs, v. 37, no. 7, p. 191, Abs. 80-1.

 

Marshall, J.S., LaFromboise, E.J., Utick, J.D., Khaw, F., Annis, L.K., Parra, J.G., and Protti, M., 2005, Variations in Quaternary coastal emergence along the Nicoya Peninsula seismic gap, Costa Rica: Geological Society of America, Abstracts with Programs, v. 37, no. 7, p. 560, Abs. 256-12.

 

Marshall, J.S., Annis, L.K., Khaw, F., Parra, J.G., and Protti, M., 2004, Coastal deformation patterns along the Nicoya seismic gap, Pacific coast, Costa Rica, Central America: Eos, Transactions, American Geophysical Union, v. 85(47), Fall Meeting Supplement, Abs. T13C-1393.

 

Marshall, J.S., Khaw, F., Parra, J.G., Annis, L.K., and Protti, M., 2004, Undergraduate geosciences field research in Costa Rica, Central America:  A study of marine terrace uplift and subduction cycle earthquakes: Council on Undergraduate Research, 10th National Conference, Workshop and Poster Abstracts, p. 46.

 

Khaw, F., and Marshall, J.S., 2004, Active tectonics and Quaternary marine terraces along a convergent plate margin, Península de Nicoya, Costa Rica: Geological Society of America, Abstracts with Programs, v. 36, no. 4, p. 91, Abs. 42-11.

 

Marshall, J.S., Khaw, F., Parra, J.G., Annis, L.K., and Protti, M., 2003, Marine terraces, subduction earthquakes, and Quaternary uplift of the Nicoya Peninsula, Costa Rica, Central America: Geological Society of America, Abstracts with Programs, v. 35, no. 6, p. 515, Abs. 224-22.

 

Marshall, J.S., 2003, The Peace Corps experience and cooperative international geosciences research and education in Costa Rica, Central America: Geological Society of America, Abstracts with Programs, v. 35, no. 6, p. 39, Abs. 10-13.

 

Amborn, T.A., Marshall, J.S.*, and Gardner, T.W.*, 2003, Active tectonics along a passive margin coastline: The marine terraces of Waratah Bay, Victoria, Australia: 11th Southern California Conference on Undergraduate Research, Program with abstracts, p. 49, (*faculty mentors).

 

Khaw, F., Parra, J.G., and Annis, L.K., and Marshall, J.S.*, 2003, Marine terraces, subduction earthquakes, and Quaternary uplift of the Nicoya Peninsula, Costa Rica, Central America: 11th Southern California Conference on Undergraduate Research, Program with abstracts, p. 158, (*faculty mentor).

 

Marshall, J.S. and Vannuchi, P., 2003, Forearc deformation influenced by subducting plate morphology and upper plate discontinuity, Pacific Coast, Costa Rica: Geological Society of America, Abstracts with Programs, v.35, no.4, p. 74, Abs. 33-3.

 

Amborn, T.A., Marshall, J.S., and Gardner, T.W., 2003, Evidence for active tectonics along the Australian passive margin: Quaternary marine terraces of Waratah Bay, Victoria: Geological Society of America, Abstracts with Programs, v. 35, no. 4, p. 16, Abs. 9-10.

 

Marshall, J.S., 2003, Active tectonics of the Costa Rican Pacific margin: Joint Meeting of the South Coast Geological Society and the San Diego Association of Geologists, in SCGS and SDAG Newsletters, March 2003, p. 1-2.

 

Bayrd, G.B., Davis, A.G., Harris, N.J., De Wet, A.P., Marshall, J.S.