People

Yarrow Axford, Principal Investigator

Yarrow Axford, Principal Investigator

Grace Schellinger, Research Technologist

Grace Schellinger, Research Technologist

Research areas: Microscopy for paleoecology, charcoal identification, lab safety and student training.

Melissa Chipman, Postdoctoral Scholar

Melissa Chipman, Postdoctoral Scholar

Research Areas: Arctic paleoecology and paleoclimate (Alaska and Greenland). Macrofossil (charcoal, chironomids, diatoms) and geochemical (stable isotopes, BSi, XRF) analyses of lake sediments.

Link to Melissa’s web site.

Laura Larocca, PhD Candidate

Laura Larocca, PhD Candidate

Research areas: Paleoclimate and mountain glacier history, South Greenland. Geospatial analysis of aerial and satellite imagery. Lake sediment records of glacier change.

Everett Lasher, PhD Candidate

Everett Lasher, PhD Candidate

Research Areas: Oxygen isotopes in sedimentary organic materials. Greenland lake records and paleoclimate.

Link to Everett’s web site.
Jamie McFarlin, PhD Candidate

Jamie McFarlin, PhD Candidate

Research areas: Plant leaf waxes and hydrogen isotopes in lake sediments. Paleoecology. Greenland lake records and paleoclimate. Also working in the Osburn lab.

Link to Jamie’s web site.
Link to the Osburn lab.
Link to a Helix story on talking with family about climate change.

Annika Hansen, Undergraduate Student ('20)

Annika Hansen, Undergraduate Student ('20)

Research areas: chironomid sample preparation.

Christine Lee, Undergraduate Student ('20)

Christine Lee, Undergraduate Student ('20)

Research areas: Oxygen isotopes of chironomids

Peter Puleo, Undergraduate Student ('19)

Peter Puleo, Undergraduate Student ('19)

Research areas: Paleoclimate of the upper Midwest. Ostracode geochemistry. Geneva Lake sediment record.

Roseanna Mayfield, Visiting Predoctoral Fellow

Roseanna Mayfield, Visiting Predoctoral Fellow

Research areas: Chironomid paleoecology. SPITFIRE fellow, Southampton University.

Recent Lab Alums:

Karalyn Berman. Undergraduate Student (’18).
Research area: Chironomid assemblages, bulk sediment geochemistry, Greenland paleoclimate.

Hannah Dion-Kirschner. Undergraduate Student (’18).
Research area: Lipid biomarkers in arctic plants. (Primary adviser: Maggie Osburn)

Lucero Flores. Undergraduate Student (’18).
Research area: Chironomids

Peter Kotecki. Undergraduate Student (’18).
Research area: Analysis of glacial lake sediments; FTIR microscopy of subfossils.

Basia Gawin. Undergraduate Student (’17).
Research areas: Glacial lake records, biogenic silica analysis.

Melissa Gardner. Undergraduate Student (’16).
Research area: Charcoal in Peruvian lake records.

Dana Johnson. Undergraduate Student (’16).
Research area: Biogenic silica analysis.

Margaret Isaacson. Undergraduate Student (’15).
Research area: Pollen and paleoclimate in the Peruvian Andes.

Anna Hopkins. Undergraduate Student (’15).
Research area: Foraminifera and marine molluscs, response to water pollution.
(Project in affilication with U. of Chicago.)

Andrew Pfeiffer. Undergraduate Student (’15).
Research area: Chironomid analyses in Greenland lakes.

Henrik Westerkam. Undergraduate Student (’15).
Research area: Lab analyses of lake sediment composition.

Nora Richter. Undergraduate Student (’14).
Research areas: Svalbard lake records. Chironomids. Sediment provenance.

Margaret Koeppel. Undergraduate Student (’14).
Research area: Physical properties and color change in Greenlandic sediments.