Research fields
Paleaoenvironmental proxies
![Pollenkorn_Nelke_aglitt_aglitt_.png](https://www.paleontology.uni-bonn.de/de/medien-inhalte/arbeitsgruppen/palaeobotanik/palaeobotanik_tlitt/pollenkorn_nelke.png/@@images/image)
Pollen and plant macrofossil analysis
Pollen analysis examines fossil sporomorphs. Pollen grains contain the male germ cells of plants.
![Holzkohle_aglitt_aglitt_.jpg](https://www.paleontology.uni-bonn.de/de/medien-inhalte/arbeitsgruppen/palaeobotanik/palaeobotanik_tlitt/holzkohle.jpeg/@@images/image)
Charcoal
The analysis of microscopically small charcoal particles from lake sediments provides insights into the fire history.
![Diatoms_aglitt_aglitt_.jpeg](https://www.paleontology.uni-bonn.de/de/medien-inhalte/arbeitsgruppen/palaeobotanik/palaeobotanik_tlitt/diatoms.jpeg/@@images/image)
Diatoms
Diatoms (Bacillariophyta) are single-celled siliceous algae, which are ecologically widespread, occurring in marine, freshwater and (semi-)terrestrial habitats worldwide.
![Symbolbild_kombinieren_colourbox_cb_COLOURBOX25704716.jpg](https://www.paleontology.uni-bonn.de/de/medien-inhalte/arbeitsgruppen/palaeobotanik/palaeobotanik_tlitt/kombinieren.jpg/@@images/image/large)
Geochemical proxies
In our working group, we combine our paleoecological results with numerous geochemical proxies.
![Abb. 2 Transfer function_aglitt_aglitt_.jpg](https://www.paleontology.uni-bonn.de/de/medien-inhalte/arbeitsgruppen/palaeobotanik/palaeobotanik_tlitt/abb-2-transfer-function.jpg/@@images/image)
Botanical-climatological transfer function for the reconstruction of the paleoclimate
The climate indicator-species method is based on observations of current geobotany.
Chronology / dating
![Warvenchronologie_aglitt_aglitt_Website_5034_2E_1H_1_W_102_112.png](https://www.paleontology.uni-bonn.de/de/medien-inhalte/arbeitsgruppen/palaeobotanik/palaeobotanik_tlitt/website_5034_2e_1h_1_w_102_112.png/@@images/image)
Varves chronology
Varves are annually laminated sediments, found mostly in limnic environments.
![streudiagramm_aglitt_aglitt_.png](https://www.paleontology.uni-bonn.de/de/medien-inhalte/arbeitsgruppen/palaeobotanik/palaeobotanik_tlitt/streudiagramm.png/@@images/image)
Radiocarbon dating
The AMS radiocarbon dating is a radiometric dating application, based on the radioactive decay of 14C-nuclides.