Nancy Durika


Nancy is part of the USGS Florence Bascom Geoscience Center. She manages the stratigraphic palynology lab and the climate change pollen lab. She specializes in the extraction of dinoflagellates and pollen from various sedimentary rock types and unconsolidated sediments.


Indiana University of Pennsylvania (IUP)

BS Geology

Started working at USGS in 1988 as a Physical Science Technician in the Palynology lab.  



Litwin, Ronald J.; Smoot, Joseph P.; Pavich, Milan J.; Markewich, Helaine W.; Oberg, Erik; Helwig, Ben; Steury, Brent; Santucci, Vincent L.; Durika, Nancy J.; Rybicki, Nancy B.; Engelhardt, Katharina M.; Sanders, Geoffrey; Verardo, Stacey; Elmore, Andrew J.; Gilmer, Joseph, 2011. Analysis of the deconstruction of Dyke Marsh, George Washington Memorial Parkway, Virginia-Progression, geologic and manmade causes, and effective restoration scenarios. U.S. Geological Survey Open-File Report 2010-1269, viii, 50 p.; Appendices [Link]

Litwin, R. J.; Smoot, J. P.; Durika, N. J.; Smith, G. I., 1999. Calibrating Late Quaternary terrestrial climate signals: Radiometrically dated pollen evidence from the southern Sierra Nevada, USA. Quaternary Science Reviews, 18: 1151 - 1171

Litwin, Ronald J; Smoot, Joseph P; Durika, Nancy J; Smith, George I; Bischoff, James L., 1997. Initial radiometric chronology for the last approximately 230 ka from two pollen-based climate change records, southern Sierra Nevada. Abstracts with Programs - Geological Society of America.

Repetski, J E; Taylor, J F; Brezinski, D K; Ganis, G R; Durika, N J, 1997. "Value-added" applications of paleontology and biostratigraphy in geologic mapping in the Central Appalachian region. Abstracts with Programs - Geological Society of America p.303.

Taylor, J.F., and Durika, N.J.,1990. Lithofacies, trilobite faunas, and correlation of the Kinzers, Ledger, and Conestoga Formations in the Conestoga Valley [Chapter IX]. In Field Conference of Pennsylvania Geologists, Inc. Guidebook no. 55 [p. 136-160]

Cercone, Karen Rose; Durika, Nancy J; Taylor, John F., 1989. Taphonomy and geochemistry of the Brush Creek marine interval in Indiana, Armstrong and Cambria counties. Guidebook for the Annual Field Conference of Pennsylvania Geologists 54, pg. 100-106.

Durika, Nancy J; Taylor, John F; Cercone, Karen Rose; Dickinson, William R., 1987. Mineralology and fluorescence of skeletal carbonates, Brush Creek marine interval, Virgilian Glenshaw Formation, southwestern Pennsylvania. Abstracts with Programs - Geological Society of America 19.7, p.649