title: Anthropogenic- and natural sources of dust in peatland during the Anthropocene.
abstract: As human impact have been increasing strongly over the last decades, it is crucial to distinguish human-induced dust sources from natural ones in order to define the boundary of a newly proposed epoch - the Anthropocene. Here, we track anthropogenic signatures and natural geochemical anomalies in the Mukhrino peatland, Western Siberia. Human activity was recorded there from cal AD 1958 (±6). Anthropogenic spheroidal aluminosilicates clearly identify the beginning of industrial development and are proposed as a new indicator of the Anthropocene. In cal AD 1963 (±5), greatly elevated dust deposition and an increase in REE serve to show that the geochemistry of elements in the peat can be evidence of nuclear weapon testing; such constituted an enormous force blowing soil dust into the atmosphere. Among the natural dust sources, minor signals of dryness and of the Tunguska cosmic body (TCB) impact were noted. The TCB impact was indirectly confirmed by an unusual occurrence of mullite in the peat.
authors.affiliation: Department of Biogeography and Paleoecology, Adam Mickiewicz University, Bogumiła Krygowskiego 10, 61-680 Poznań, Poland.
authors.forename: B
authors.initials: B
authors.lastname: Fiałkiewicz-Kozieł
authors.affiliation: Faculty of Earth Sciences, University of Silesia, Będzińska 60, 41-200 Sosnowiec, Poland.
authors.forename: B
authors.initials: B
authors.lastname: Smieja-Król
authors.affiliation: Department of Neutron Activation Analysis, Frank Laboratory of Neutron Physics Joint Institute for Nuclear Research, Dubna, Russian Federation.
authors.forename: M
authors.initials: M
authors.lastname: Frontasyeva
authors.affiliation: Department of Environmental Resources and Geohazards, Institute of Geography and Spatial Organization, Polish Academy of Sciences, Twarda 51/55, 00-818 Warszawa, Poland.|GFZ German Research Centre for Geosciences, Section 5.2-Climate Dynamics and Landscape Evolution, Telegrafenberg, D-14473 Potsdam, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Słowiński
authors.affiliation: Department of Biogeography and Paleoecology, Adam Mickiewicz University, Bogumiła Krygowskiego 10, 61-680 Poznań, Poland.|Laboratory of Wetland Ecology and Monitoring, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, B.Krygowskiego 10, PL-61 680 Poznań, Poland.
authors.forename: K
authors.initials: K
authors.lastname: Marcisz
authors.affiliation: Yugra State University, Chekhova 16, 628012, Khanty-Mansiysk, Russia.
authors.forename: E
authors.initials: E
authors.lastname: Lapshina
authors.affiliation: Laboratoire de Chrono-environment, UMR 6249 CNRS, Université de Franche-Comté, 16 Route de Gray, 25030 Besancon Cedex, France.
authors.forename: D
authors.initials: D
authors.lastname: Gilbert
authors.affiliation: Swiss Federal Research Institute-WSL, Community Ecology Research Unit, Station 2, CH-1015 Lausanne, Switzerland.|École Polytechnique Fédérale de Lausanne (EPFL), School of Architecture, Civil and Environmental, Engineering (ENAC), Laboratory of Ecological Systems (ECOS), Station 2, CH-1015 Lausanne, Switzerland.
authors.forename: A
authors.initials: A
authors.lastname: Buttler
authors.affiliation: Swiss Federal Research Institute-WSL, Community Ecology Research Unit, Station 2, CH-1015 Lausanne, Switzerland.|École Polytechnique Fédérale de Lausanne (EPFL), School of Architecture, Civil and Environmental, Engineering (ENAC), Laboratory of Ecological Systems (ECOS), Station 2, CH-1015 Lausanne, Switzerland.
authors.forename: V E J
authors.initials: VE
authors.lastname: Jassey
authors.affiliation: Department of Biogeography and Paleoecology, Adam Mickiewicz University, Bogumiła Krygowskiego 10, 61-680 Poznań, Poland.|Laboratory of Wetland Ecology and Monitoring, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, B.Krygowskiego 10, PL-61 680 Poznań, Poland.
authors.forename: K
authors.initials: K
authors.lastname: Kaliszan
authors.affiliation: Université d'Orléans, CNRS/INSU, BRGM, ISTO, UMR 7327, 45071 Orléans, France.
authors.forename: F
authors.initials: F
authors.lastname: Laggoun-Défarge
authors.affiliation: Department of Biogeography and Paleoecology, Adam Mickiewicz University, Bogumiła Krygowskiego 10, 61-680 Poznań, Poland.
authors.forename: P
authors.initials: P
authors.lastname: Kołaczek
authors.affiliation: Department of Biogeography and Paleoecology, Adam Mickiewicz University, Bogumiła Krygowskiego 10, 61-680 Poznań, Poland.|Laboratory of Wetland Ecology and Monitoring, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, B.Krygowskiego 10, PL-61 680 Poznań, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Lamentowicz
mesh_terms: D000883:Anthropology; D004391:Dust; D006801:Humans; D012800:Siberia; D012987:Soil
chemical_list: D004391:Dust; D012987:Soil