People

Professor

Sidney R. Hemming

Lamont Assistant Research Professor

Stephen E. Cox

Research Technician

Tanzhuo Liu

Graduate Student

Jenna Everard

Graduate Student

Kelly Fenton-Samuels

Graduate Student

Sydney Maguire

Lab Manager

Jenny Paltan

Lab Mascot

Crinkle

Undergraduate

Natalie Buttner

Undergraduate

Katie Pierson

Affiliate

Mike Kaplan

Affiliate

Allison M. Franzese

Affiliate

Malka L. Machlus

Affiliate

Trevor J. Williams

Affiliate

Brent D. Turrin

AGES Alumni

Silu Wang, Undergraduate Researcher (2021 - 2023) & Staff Research Assistant (2025 - 2026). Examining the Viability of K Isotope Ratios as a Biomarker of Cardiovascular Diseases Linked to Arsenic Exposure in Bangladesh

Carmen Rodriguez, USSSP/IODP Undergraduate Researcher (2026). BEFORE THE SUBDUCTION: Clay Mineralogy & K/Ar Geochronology of Pacific Plate sediment entering the Japan Trench

Zarah Danton, REU Undergraduate Researcher (2026). Clay Mineralogy and K/Ar Ages of sediments from Expedition 343 (JFAST)

Makayla McShane, USSSP/IODP Undergraduate Researcher (2026). Refining the Assessment of Ice Rafted Debris Abundance in Sediment Cores Using Combined X-Ray Imaging and Sedimentology

Brice Banda, Undergraduate Researcher (2025 - 2026). Examining the Timing and Source of Fluorite Deposits along the Rio Grande Rift, New Mexico

Gina Brown, Undergraduate Researcher (2023 - 2026). K’/Ar Provenance Analysis of Bermuda Rise Sediment during Termination I

Leila Tarabein, Undergraduate Researcher (2021 - 2023) & Staff Research Assistant (2023 - 2025). Ar-Ar Evidence for Iceberg Rafted Detritus Provenance through Termination 1 at Site U1537 in Iceberg Alley, Antarctica

Alice Warden, Undergraduate Researcher (2022 - 2023). Novel Single-Pellet K/Ar Dating Combined with X-Ray Diffraction to Examine Glauconite Formation in Gulf of Guinea Site 959

Nathalie Gee, Undergraduate Researcher (2021 - 2022). Geochemical Fingerprinting of a Mono Lake Ash Layer Using Titanomagnetite Chemistry

Sydney Peet, Undergraduate Researcher (2024). Stratigraphic refinement of the early Pleistocene record from IODP Site U1562 from the Reykjanes Ridge

Nicole Sadie Spearman, Undergraduate Researcher (2024). Can Arctic Sea Ice Melting Lead to More Summer Heat Extremes?

Daniel Babin, PhD Student (2019 - 2023). Mid-Pleistocene-to-present southeast African hydroclimate and deep water regimes

Cecilia Bowe, Undergraduate Researcher (2022). Tracing North Atlantic Continental Erosion during the Mid-Pleistocene Transition: K-Ar geochronology and mineralogical analyses of Ice Rafted Debris

Abby Cermak, Undergraduate Researcher (2022). Testing of the Contemporaneous Degassing Rate of 40Ar Over the Last 450 Million Years Using Coral and Brachiopod Archives

Amelia Faucher, Undergraduate Researcher (2022). Examining the Effects of Grain Size and Marine Barite on Sr Isotopes in Terrigenous Sediment from U1479, Cape Basin, South Africa

Gabriel Mangum Lehmann, Undergraduate Researcher (2022). Authigenic Gypsum in Southern Ocean Sediments

Amanda Chen, Undergraduate Researcher (2021). Examining Mineralogical Variations Through ODP Site 959 in the Gulf of Guinea

Annika Gonzales, Undergraduate Researcher (2021). Connecting Changes in Volcanic Activity to Glacial-Climates Over the Last ~6 Ma From Central America to the Central Andes

* List complete for 2021 onwards

Columbia Affiliations