Project 1st Phase
Cosmogenic nuclides: dating of old continental sediments in arid environments
Research areas: Geochemistry, Experimental Condensed Matter Physics, Analytical Chemistry, Method Development
Principal investigators: Prof. Dr. Tibor J. Dunai, Dr. Steven Binnie, Prof. Dr. Alfred Dewald, Dr. Benedikt Ritter, Dr. Erik Strub
Project Info: 1st Phase
It is presently difficult, in many cases impossible, to obtain reliable ages for continental sediments that are devoid of age-indicating fossils. This is particularly the case for discontinuously deposited old (>1 Ma) sediments in arid environments, since they are outside the age-range of luminescence and disequilibrium dating techniques (Ankjaergaard et al., 2013; Blisniuk et al., 2012; Lomax et al., 2011; Zander and Hilgers, 2013).
Thus some of the sediments that are in the focus of our attention in this CRC are challenging to date. However, a prerequisite for establishing useful paleoclimatic records (e.g. A2, C4) is that we can reliably date these records. Hence, the aim of this project is to develop novel methodology that allows age determination in otherwise barren material. Our methodology relies on decay of cosmogenic nuclides, acquired by in-situ production and from atmospheric production/deposition, and a novel isotopic system for exposure dating. To address the variability of materials encountered, we will use a multipronged approach.
Former Members:
- Prof. Dr. Tibor J. Dunai (Principal Investigator)
- Dr. Steven Binnie (Principal Investigator)
- Prof. Dr. Alfred Dewald (Principal Investigator)
- Dr. Erik Strub (Principal Investigator)
- Dr. Stefan Heinze (Technician)
- Tomasz Góral (Technician)
Publications
Project D1 - Publications
Articles
Ritter, B., Albert, R., Rapikov, A., Van Der Wateren, F. M., Dunai, T., Gerdes, A., 2024.
Late Neogene terrestrial climate reconstruction of the central Namib Desert derived by the combination of U–Pb silcrete and terrestrial cosmogenic nuclide exposure dating.
Geochronology. 5, 433 - 450. DOI: https://doi.org/10.5194/gchron-5-433-2023.
Dunai, T., Melles, M., Quandt, D., Knief, C., Amelung, W., 2021.
Whitepaper: Earth – Evolution at the dry limit.
Global and Planetary Change. 193 (193), 193 - 194.
Schiffer, M., 2020.
Method developments for accelerator mass spectrometry at CologneAMS, 53Mn/3He burial dating and ultra-small 14CO2 samples.
Global and Planetary Change. 186, 1 - 7. DOI: 10.1016/j.gloplacha.2019.103053.
Böhnert, T., Luebert, F., Ritter, B., Merklinger, F. F., Stoll, A., Schneider, J., Quandt, D., Weigend, M., 2019.
Origin and diversification of Cristaria (Malvaceae) parallel Andean orogeny and onset of hyperaridity in the Atacama Desert.
Global and Planetary Change. 181, 1 - 8. DOI: 10.1016/j.gloplacha.2019.102992.
Ritter, B., Stuart, F., Binnie, S., Gerdes, A., Wennrich, V., Dunai, T., 2019.
Neogene fluvial landscape evolution in the hyperarid core of the Atacama Desert.
Nature Scientific Reports. 1 - 16.
Ritter, B., 2019.
Dissertation B. Ritter 2019: Landscape and climate evolution in arid to hyperarid climates with special focus on the Atacama Desert.
Universitäts- und Stadtbibliotheke Universität zu Köln. 1 - 161.
Schiffer, M., Spanier, R., Müller-Gatermann, C., Herb, S., Feuerstein, C. P., Hackenberg, G., Heinze, S., Stolz, A., Dewald, A., Binnie, S., 2019.
The first (53Mn/55Mn) isotopic ratio measurements at the Cologne FNTandem Accelerator.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 437, 87 - 92. DOI: 10.1016/j.nimb.2018.09.029.
Schiffer, M., Altenkirch, R., Feuerstein, C. P., Müller-Gatermann, C., Hackenberg, G., Herb, S., Bhandari, P., Heinze, S., Stolz, A., Dewald, A., 2019.
A dedicated AMS setup for medium mass isotopes at the Cologne FN tandem accelerator.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 406, 287 - 291. DOI: 10.1016/j.nimb.2017.03.083.
Event Papers
Ritter, B., Dunai, T., Stuart, F., Wennrich, V., Melles, M., 2019.
Shoreline dating of the former Quillagua-Llamara Lake, N-Chile – Implications of global teleconnections to the hydrology of the Atacama Desert.
Proc. of EGU General Assembly 2016, April 17 - 22, 2016, Vienna, 1 - 1.
Ritter, B., Binnie, S., Stuart, F., Gerdes, A., Wennrich, V., Dunai, T., 2019.
Neogene fluvial landscape evolution in the hyperarid core of the Atacama Desert.
Proc. of EGU General Assembly 2018, April 08 - 13, 2018, Vienna, 1 - 1.
Ritter, B., Diederich, J., Stuart, F., Binnie, S., Bolten, A., Dunai, T., 2019.
Adaption of drainage and depositional systems to tectonic and climate forcing – New insights from terrestrial cosmogenic nuclide exposure dating in the hyperarid core of the Atacama Desert.
Proc. of EGU General Assembly 2019, April 07 - 12, 2019, Vienna, 1 - 1.
Data
Project D1 - Research Data
Ritter, B., Albert, R., Rapikov, A., Van Der Wateren, F., Dunai, T., Gerdes, A., 2024.
Data tables of terrestrial cosmogenic nuclide dating of Ritter et al., 2024.
CRC1211 Database (CRC1211DB). DOI: https://doi.org/10.5194/gchron-5-433-2023-supplement.
Ritter, B., Dunai, T., 2019.
Introduction Excursion CRC Recorded GPS Tracks.
CRC1211 Database (CRC1211DB).
Ritter, B., Dunai, T., 2019.
Introduction CRC Excursion Tracks Fieldguide.
CRC1211 Database (CRC1211DB).
Ritter, B., 2019.
Field Trip MSc Student Geowiss. Kmz Data 2018.
CRC1211 Database (CRC1211DB).
Ritter, B., 2019.
Field Trip MSc Students Geowiss. Chile Excursion 2019 Recorded Tracks.
CRC1211 Database (CRC1211DB).
Ritter, B., 2019.
Neogene fluvial landscape evolution in the hyperarid core of the Atacama Desert.
CRC1211 Database (CRC1211DB).
Ritter, B., 2019.
Supplementary Dataset Ritter et al. 2018.
CRC1211 Database (CRC1211DB).
Schiffer, M., 2019.
53Mn Measurement 190321-0008.
CRC1211 Database (CRC1211DB). DOI: 10.5880/CRC1211DB.23.
Schiffer, M., 2019.
53Mn Measurement 190321-0007.
CRC1211 Database (CRC1211DB).
Schiffer, M., 2019.
53Mn Measurement Info File 190321.
CRC1211 Database (CRC1211DB).
