Jonathan Warnock

Jonathan Warnock serves as Professor in the Department of Anthropology, Geospatial and Earth Sciences at Indiana University of Pennsylvania's Kopchick College of Natural Sciences and Mathematics, with his office located in Kopchick Hall 312-E (jwarnock@iup.edu, 724-357-5627).

His academic credentials include:

• BS in Geology and Biology from Northern Illinois University
• MS in Geology (Paleoecology) from University of Illinois Chicago
• PhD in Geology (Micropaleontology/Paleoclimatology) from Northern Illinois University

Specializing in diatom-based silica cycle reconstruction, Warnock conducts paleoclimatological research focused on environmental reconstruction in the Southern Ocean and Baltic Sea. His work pioneers novel proxy development through diatom taphonomy analysis to decode Pleistocene-Holocene climate dynamics, Antarctic ice sheet behavior, and ocean productivity cycles. Current projects examine West Antarctic Ice Sheet collapse impacts and Baltic Sea paleosalinity variations using IODP core samples.

Analysis of his 15 most recent publications reveals dominant research trajectories in Antarctic climate history using diatom proxies from IODP expeditions. Key themes include West Antarctic Ice Sheet retreat patterns during Marine Isotope Stages, Southern Ocean circulation shifts during interglacials, and multi-proxy Baltic Sea environmental reconstructions. His methodology integrates sediment DNA analysis, diatom dissolution metrics, and geochemical data from Iceberg Alley and Little Belt cores.

Warnock mentors graduate researchers including J. Petricko (Cleveland-Lloyd Dinosaur Quarry geochemistry), B. Ferguson (Fragilariopsis Kerguelensis morphology), and S. Parker (Antarctic nutrient cycling). He participates in major collaborative initiatives like IODP Expedition 382 and Plio-Pleistocene Antarctic glaciation studies through NSF-funded projects.

His research program operates within international frameworks including IODP Expedition 347 (Baltic Sea) and Expedition 382 (Scotia Sea), coordinating multi-disciplinary teams analyzing sediment cores from Iceberg Alley. These collaborations involve paleoceanographers, glaciologists, and geochemists examining Antarctic ice-ocean interactions across 1.5 million years.