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Tyler S. Winkler
Tyler S. Winkler

Texas A&M University at Galveston


Ph.D. Oceanography, Texas A&M University (Anticipated 2020)

B.S. Summa Cum Laude, Marine Biology; Texas A&M University-Galveston Campus (2015)


Texas A&M University at Galveston 2-Year Competitive Graduate Student Fellowship (2015-2017)

Texas A&M Department of Oceanography Department Louis and Elizabeth Scherck Scholarship (2015)

GSA Annual Meeting Outstanding Student Poster Presentation Award (2014)


GEOL 101: Principles of Geology Laboratory

Tyler S. Winkler

Graduate Student

Research Interests

  • Paleoceanography
  • Paleoclimatology
  • Sedimentology
  • Micropaleontology
  • Stable and radiogenic isotopic geochemistry
  • Karst hydrology
  • Coastal geomorphology

Ph.D. Research

The goal of my primary Ph.D. research is to study long-term coastal sea surface temperature (SST) variability in the western North Atlantic Ocean by applying carbonate geochemical proxies (e.g., Mg/Ca, δ18O) to benthic foraminifera preserved in sediments from flooded sinkholes in known as blueholes. I will simultaneously use these sediment archives to reconstruct hurricane frequency and intensity over the last several thousand years. Ultimately, this study will provide unprecedented insight into the relationship between SST and hurricane behavior that which could be critical in understanding how hurricane behavior may respond if Earth’s oceans continue to warm.
I am also in a number of other projects that utilize a combined field (piston coring, vibracoring, technical SCUBA diving, geophysical surveying) and laboratory approach (sedimentology, micropaleontology, and isotopic geochemistry) to study ocean/climate impacts on the hydrology, geomorphology, and biogeochemistry of carbonate landscapes (e.g., sinkholes, blueholes, and underwater caves) throughout The Bahamas, Mexico, Florida, Bermuda, and Jamaica.

Selected Publications


Winkler, TS, van Hengstum, PJ, Horgan, MC, Donnelly, JD, Reibenspies, JH. Detrital cave sediments record late quaternary hydrologic and climatic variability in northwestern Florida, USA. Sedimentary Geology (in press; 2016)

Published Abstracts and Presentations

Winkler, T.S., van Hengstum, P.J., Donnelly, J.P., Sullivan, R.M., Albury, N.A., 2015, The geomorphologic value of drone-based aerial photography during reconnaissance of remote northern Bahamian blueholes. GSA Abstracts with Programs 47 (7)

Winkler, T.S., van Hengstum, P.J., Schwehr, K. A., Reibenspies, J.H., 2014, Deglacial hydrologic conditions in two underwater caves flooded by the Western Floridian aquifer. GSA Abstracts with Programs 46 (6).

Additional Information

Advisor: Dr. Pete J. van Hengstum 

Professional Affiliations

  • Geological Society of America (2014-present)
  • Cushman Foundation for Foraminiferal Research (2014-present)

Technical Certifications

  • Divemaster, National Association of Underwater Instructors (NAUI) (2014-present)
  • Full Cave SCUBA Diver, Technical Diving International (TDI) (2012-present)
  • Scientific Diver, American Academy of Underwater Sciences (AAUS) (2012-present)
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