Samuel BentleySamuel Bentley 


Associate Dean for Research, LSU College of Science

Billy & Ann Harrison Chair in Sedimentary Geology

Bachelor's Degree(s): University of Georgia, BA in Theater with minor in Geology- 1985
Master's Degree: University of Georgia, MS in Geology- 1992
PhD: SUNY Stony Brook, PhD Coastal Geological Oceanography- 1998
Phone: (225) 578-5735
Fax: (225) 578-2302


Office: E307 Howe-Russell Building
Google Scholar Page:

Selected Professional Activities:

2017-present: Associate Dean of Research, LSU College of Science

2013-2017: Director, LSU Coastal Studies Institute 

2010-2013: member, Special Engineering and Science Team, organized by the National Audubon Society, National Wildlife Federation, and Environmental Defense Fund, for evaluating conservation and restoration of the Mississippi Delta

2010-2012: Research Councilor (elected), Executive Committee, Society for Sedimentary Geology

2009-2012: Associate Editor for sedimentology and stratigraphy, Canadian Journal of Earth Science

2009 Chief Scientist, Leg 4B of CCGS Amundsen 2009 Arctic Expedition, Leg 4b, Canada ArcticNet

Graduate Students at LSU Geology and Geophysics:

PhD students:

Mitchell Andrus

Giancarlo Restreppo

James Smith

Brian Vosburg

Crawford White

MS Students:

Ryan Clarke

Andrew Courtois

Suyapa Gonzalez

Christopher Magliolo

Research Interests:

Coastal and marine sedimentology, sediment radiochemistry, fine sediment dynamics on continental shelves, bioturbation, predictive modeling of sedimentary fabric and structures

Selected Publications

Obelcz, J., Xu, K., Georgiou, I.Y., Maloney, J., Bentley, S.J. and Miner, M.D., 2017. Sub-decadal submarine landslides are important drivers of deltaic sediment flux: Insights from the Mississippi River Delta Front. Geology (2017) 45 (8): 703-706. DOI:

Septama, Erlangga., Bentley, Samuel.J., 2017, Source-to-sink sediment delivery in the Gulf of Papua from SEM-MLA-aided provenance analysis of deep-sea turbidite sands, AAPG Bulletin DOI:10.1306/09021615184, p. 907-936.

Keller, G., Bentley, S.J., Xu, K., Maloney, J., Miner, M., Georgiou, I., 2016, River-plume sedimentation and 210Pb/7Be seabed delivery on the Mississippi River delta front. Geo Marine Letters doi:10.1007/s00367-016-0476-0.

Denommee, KC., Bentley, SJ, Harazim, D., Macquaker, JHS, 2016, Hydrodynamic controls on muddy sedimentary-fabric development on the Southwest Louisiana subaqueous delta. Marine Geology,

Twilley, R. R.*, Bentley, S.J., Chen, Q.J., Edmonds, D.A., Hagen, S.C., Lam, N.S.L., et al., 2016, Co-evolution of wetland landscapes, flooding, and human settlement in the Mississippi River Delta Plain. Sustainability Science DOI: 10.1007/s11625-016-0374-4.

Septama, E., and Bentley, SJ., 2016, Late Quaternary geomorphology, seabed evolution, and terrigenous sediment delivery to the Pandora and Moreseby Troughs, Gulf of Papua. Marine Geology doi:10.1016/j.margeo.2016.06.004.

Septama, E., and Bentley, SJ., 2016, Conduits, Timing, and Processes of Sediment Delivery across a high-relief continental margin: Continental Shelf to Basin in the Late Quaternary Gulf of Papua. Marine and Petroleum Geology 72: 447-462,        doi:10.1016/j.marpetgeo.2016.02.009.

Xu, K., Bentley, S.J., Robichaux, P., Sha, X., and Yang, H., 2016, Implications of texture and erodibility for sediment retention in receiving basins of Coastal Louisiana diversions. Water 2016, 8(1), 26; doi: 10.3390/w8010026.


2011-Present, Harrison Chair in Sedimentary Geology and Associate Professor, Louisiana State University, Department of Geology and Geophysics

2011-Present, Adjunct Professor, Memorial University of Newfoundland

2006-2011, Canada Research Chair in Seabed Processes and Seabed Imaging, and Associate Professor, Earth Sciences Dept., Memorial University of Newfoundland

2004-2006, Associate Professor, Department of Oceanography and Coastal Sciences (DOCS), Louisiana State University.

2006-Present, Adjunct Professor, Department of Oceanography and Coastal Sciences, LSU

1999-2004, Assistant Professor, Department of Oceanography and Coastal Sciences, LSU

1998-1999 Naval Research Laboratory Postdoctoral Fellow, Stennis Space Center, MS, Seafloor Sciences