Irka Hajdas

Dr. Irka Hajdas
Labor für Ionenstrahlphysik
ETH Zürich
Otto-Stern-Weg 5
CH-8093 Zürich

Phone: +41 (0) 44 633 20 42
Fax: +41 (0) 44 633 10 67
E-mail: hajdas(at)
URL Institution:
Personal URL: link

Additional functions:

Key Publications of Irka Hajdas (up to ten) :
Hajdas, I., Bonani, G., Boden, P., Peteet, D. M., and Mann, D. H. (1998). Cold reversal on Kodiak Island, Alaska, correlated with the European Younger Dryas by using variations of atmospheric C-14 content. Geology 26, 1047-1050.
Hajdas, I., Bonani, G., Hadorn, P., Thew, N., Coope, G. R., and Lemdahl, G. (2004a). Radiocarbon and absolute chronology of the Late-Glacial record from Hauterive/Rouges-Terres, Lake Neuchatel (CH). Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 223-224, 308-312.
Hajdas, I., Bonani, G., Hergessell Zimmerman, S., Mendelson, M., and Hemming, S. (2004b). 14C Ages of Ostracodes from Pleistocene Lake Sediments of the Western Great Basin, USA - Results of Progressive Acid Leaching. Radiocarbon 46, 189-200.
Hajdas, I., Bonani, G., Moreno, P. I., and Ariztegui, D. (2003). Precise radiocarbon dating of late-glacial cooling in mid-latitude South America. Quaternary Research 59, 70-78.
Hajdas, I., Ivy, S. D., Beer, J., Bonani, G., Imboden, D., Lotter, A. F., Sturm, M., and Suter, M. (1993). Ams Radiocarbon Dating and Varve Chronology of Lake Soppensee - 6000 to 12000 C-14 Years Bp. Climate Dynamics 9, 107-116.

Expertise of Irka Hajdas:
Expertise CategorySpecific Expertise
Topic AtmosphereAtmosphere
Topic HydrosphereHydrosphere
Topic PedospherePedosphere
Topic Integrated SystemsIntegrated Systems and Ecology
Spatial ScaleSpatial Scale
Global / Hemispheric
Time FramePast
MethodsData Collection - Measurement
Literature Study
Applied Research / Technology

Specialties of Irka Hajdas:
AMS 14C dating and its applications in archaeology and climate research, as well as other problems connected to sample preparation and production of reliable ages, calibration problems

Time scales of climatic records (lakes, deep-sea cores, corals, tree rings, etc.) of the past 40,000 years and dating of climatic events, correlation between records based on chronological information

Calibration issues of the radiocarbon time scale, changes in atmospheric 14C content over the past 40,000 years

Last update: 6/22/20
Source of data: ProClim- Research InfoSystem (1993-2022)

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