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Publications
Helmholtz Centre Potsdam
GFZ German Research Centre for Geosciences
(Co) Author: Kristen, I.
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Blaauw, M.; van Geel, B.; Kristen, I.; Plessen, B.; Lyaruu, A.; Engstrom, D. R.; van der Plicht, J.; Verschuren, D. (2011): High-resolution 14C dating of a 25,000-year lake-sediment record from equatorial East Africa. Quaternary Science Reviews, 30, 21-22, 3043-3059.
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Kristen, I.; Wilkes, H.; Vieth-Hillebrand [Vieth], A.; Zink, K.-G.; Plessen, B.; Thorpe, J.; Partridge, T. C.; Oberhänsli, H. (2010): Biomarker and stable carbon isotope analyses of sedimentary organic matter from Lake Tswaing: evidence for deglacial wetness and early Holocene drought from South Africa. Journal of Paleolimnology, 44, 1, 143-160.
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Verschuren, D.; Damste, J. S. S.; Moernaut, J.; Kristen, I.; Blaauw, M.; Fagot, M.; Haug, G. H. (2009): Half-precessional dynamics of monsoon rainfall near the East African equator: Implications for Indian Ocean ITCZ migration over the past 25,000 years. Geochimica et Cosmochimica Acta, 73, 13, Suppl. 1, A1380.
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Verschuren, D.; Sinninghe Damsté, J. S.; Moernaut, J.; Kristen, I.; Blaauw, M.; Fagot, M.; Haug, G. H. (2009): Half-precessional dynamics of monsoon rainfall near the East African Equator. Nature, 462, 7273, 637-641.
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Blaauw, M.; Verschuren, D.; van Geel, B.; Kristen, I.; Lyaruu, A.; van der Plicht, J. (2008): High-resolution age-depth modelling of the Lake Challa sediment record, 25,000 kyr BP to present (Mt. Kilimanjaro, Kenya/Tanzania). Book of Abstracts, Final EuroCLIMATE Conference (Giens, France 2008).
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Kristen, I.; Wolff, C.; Schettler, G.; Dulski, P.; Naumann, R.; Haug, G. H.; Blaauw, M.; Verschuren, D. (2008): Lake Challa (Mt. Kilimanjaro) sediments as recorder of present and past seasonality in equatorial East Africa. Book of Abstracts, Final EuroCLIMATE Conference (Giens, France 2008).
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Verschuren, D.; Sinninghe Damsté, J. S.; Haug, G. H.; Kristen, I.; Moernaut, J.; Milne, I.; Wolff, C.; Fagot, M.; van Geel, B.; Blaauw, M. (2008): A 25,000 years climate record from the East African equator: Half-precessional climate forcing and the history of temperature and hydrological change. 5th General Assembly European Geosciences Union (Vienna, Austria 2008).
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Verschuren, D.; Sinninghe Damsté, J. S.; Moernaut, J.; Milne, I.; Kristen, I.; Fagot, M.; Haug, G. H.; Blaauw, M. (2008): Half-precessional climate forcing of Indian Ocean monsoon dynamics on the East African equator. Book of Abstracts, Final EuroCLIMATE Conference (Giens, France 2008).
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Wolff, C.; Haug, G. H.; Plessen, B.; Kristen, I.; Verschuren, D. (2008): Lake Challa (Kenya/Tanzania) sediments - a varved climate archive of environmental variability in equatrial East Africa of the last 25,000 years. Book of Abstracts, Final EuroCLIMATE Conference (Giens, France 2008).
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Kristen, I.; Dulski, P.; Haug, G. H.; Verschuren, D. (2007): High-resolution microfacies and µXRF analysis of lacustrine sediments from the equatorial East African Lake Challa, spanning the last 1000 years (CHALLACEA, ESF programme EuroCLIMATE). 4th General Assembly European Geosciences Union (Vienna, Austria 2007).
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Kristen, I.; Wilkes, H.; Plessen, B.; Vieth, A.; Thorpe, J.; Oberhänsli, H. (2007): Tracing environmental change in Lake Tswaing (South Africa) using biomarker and stable carbon isotopes. 4th International Limnogeology Congress (ILIC 2007) - Limnogeology: tales of an evolving Earth. Programme and abstracts book, 4th International Limnogeology Congress (ILIC 2007) (Barcelona 2007), 163-164.
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Moernaut, J.; Verschuren, D.; Kristen, I.; Fagot, M.; De Batist, M. (2007): Abrupt lake-level changes in Lake Challa (East Africa) revealed by high-resolution seismic stratigraphy: relationship to global paleoclimatic events during the last glacial-interglacial cycle?. 4th International Limnogeology Congress (ILIC 2007) - Limnogeology: tales of an evolving Earth. Programme and abstracts book, 4th International Limnogeology Congress (ILIC 2007) (Barcelona 2007), 162.
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Kristen, I.; Fuhrmann, A.; Haug, G. H.; Horsfield, B.; Oberhänsli, H.; Partridge, T. C.; Thorpe, J.; Wilkes, H. (2005): New Insights Into the Climate and Vegetation History of the subtropical Crater Lake 'Tswaing', South Africa, for the Last 300,000. AGU 2005 Fall Meeting (San Francisco 2005).
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Kristen, I.; Fuhrmann, A.; Haug, G. H.; Horsfield, B.; Oberhänsli, H.; Thorpe, J.; Wilkes, H. (2005): New insights into the climatic and vegetational history of the subtropical crater lake 'Tswaing', South Africa, for the last ~300.000 years. Organic Geochemistry: Challenges for the 21st Century (Vol. 2). Book of Abstracts, 22nd International Meeting on Organic Geochemistry (IMOG) (Sevilla, Spain 2005), 869-870.
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Kristen, I. (2009): Investigations on rainfall variability during the late Quaternary based on geochemical analyses of lake sediments from tropical and subtropical southern Africa. Scientific Technical Report ; 10/01, Deutsches GeoForschungsZentrum GFZ, viii, 124, XXII.
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