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Lecture series in Ecology and Environmental Research WS 2015/16

Thursday 12:00-13:30 H6, Geo


Dr. Christoph Schmidt
Geomorphology, BayCEER, University of Bayreuth (Homepage)
Thursday, 19.11.2015 12:00-13:30 H6, GEO:

Of trapped electrons and their relevance in tracing landscape evolution and human history

Both geosciences and archaeology rely on robust chronological markers in environmental archives and excavations to solve their research questions adequately: Ordering events, revealing causal relationships and interregional parallelisation of terrestrial archives require sound age control.

For more than 50 years now, geographers and archaeologists make use of the environmental radioactivity for dating purposes. Its ionising radiation produces free electrons in natural minerals such as quartz and feldspar. These electrons may be stored in electron traps in buried minerals, and released again when they are exposed to heat or sunlight. During this re-setting event, the stored energy is set free and emitted in the form of light – luminescence. The integrated light sum (proportional to the trapped electron concentration) is thus a measure for the time elapsed since the last bleaching or heating event. The ability to record the time of last sunlight exposure or heating above 350 °C makes luminescence dating a unique dating tool for Quaternary sciences, covering an age range from a few 100 to more than 100,000 years.

This talk aims to present the basic principles of luminescence dating, but also demonstrates its abundant fields of applications as well as some examples of what role this technique plays in deciphering landscape evolution and human (pre-)history.



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DatelecturerTitle
Wednesday
Room 204, 2. floor/Geo III
10:00-11:30
07.10.2015
Dr. Lucian Staicu
University of Franche-Comté, Department of Science and Technology, Besançon, France
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22.10.2015Prof. Declan Kennedy
formerly Chair of Urban Design, Dept. of Architecture, TU Berlin
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15:15-16:45
28.10.2015
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Community Ecology Research Oxford, University of Oxford, UK / Smithsonian Tropical Research Institute, Panama
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29.10.2015Dr. Sergio Calabrese
Università degli Studi di Palermo; Department of Earth and Marine Science (DiSTeM); Italy
Environmental impact of volcanic emissions [Abstract]
12.11.2015Dr. Dylan James Craven
German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig
Biodiversity effects on ecosystem stability following climate extremes [Abstract]
19.11.2015Dr. Christoph Schmidt
Geomorphology, BayCEER, University of Bayreuth
Of trapped electrons and their relevance in tracing landscape evolution and human history [Abstract]
26.11.2015Dr. Derek Persoh
Institute for Evolution and Biodiversity of Plants, Ruhr-University of Bochum
Fungal community structure and function - from current knowledge towards predictability [Abstract]
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14:15-15:45
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Prof. Dr. Alexandra-Maria Klein
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03.12.2015Dr. Harald Pauli
Department of Conservation Biology, Vegetation and Landscape Ecology Institute of Ecology and Conservation Biology University of Vienna
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10.12.2015Dr. Severin Irl
Biogeography, BayCEER, University of Bayreuth
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Luftdruck (356m): 980.3 hPa
Lufttemperatur: -0.1 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 17m): 4.5 km/h
Wind (Max.): 12.2 km/h
Windrichtung: S

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Globalstrahlung: -5 W/m²
Lufttemperatur: -3.5 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 32m): 0.0 km/h

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