The great antiquity of the Atacama Desert means that some questions about its geological evolution are beyond the capabilities of current dating methods. New techniques need to be developed to allow us and others to answer these questions. Establishing several new techniques that are able to date old sediments geochronometers is the aim of this project. One of the sample types we are using is micrometeorites. These are tiny extra-terrestrial rock particles that continually rain down on the Earth. Their preservation in the Atacama Desert sediments suggests they could be used as a tool to record environmental change, provided we can date when they landed on the Earth. As part of this we are working towards measuring cosmogenic 53 Mn at the University of Cologne, which can currently only be performed in two laboratories worldwide. You need JavaScript enabled to view it. Log in. Remember Me. Project Introduction D1 — Cosmogenic Nuclides. Dating of old continental sediments in arid environments The great antiquity of the Atacama Desert means that some questions about its geological evolution are beyond the capabilities of current dating methods. Publication: Ritter, B. Dissertation B. Ritter Landscape and climate evolution in arid to hyperarid climates with special focus on the Atacama Desert. Universitäts- und Stadtbibliothek Universität zu Köln. Ritter, B. Neogene fluvial landscape evolution in the hyperarid core of the Atacama Desert. Nature Scientific Reports. You are here: Home News Cosmogenic nuclide dating Introduction D1 — Cosmogenic Nuclides. Contact Speaker: Prof. Tibor J. Dunai Institute of Geology and Mineralogy University of Cologne Zülpicher Str. Martin Melles Institute of Geology and Mineralogy University of Cologne Zülpicher Str. Benedikt Ritter Institute of Geology and Mineralogy University of Cologne Zülpicher Str. Partners Chile. Partners Namibia. Main News Jobs Projects Data IRTG. Speaker: Prof. Managing Director: Christian Tiede Institute of Geology and Mineralogy Cosmogenic nuclide dating of Cologne Zülpicher Str. Co-Speaker: Prof. Scientific Coordinator: Dr. Webmaster: Tim Schlüter Institute of Geography University of Cologne Otto-Fischer-Str.
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Project F1 has two main components, each with focus on establishing highprecision chronologies based on radiometric dating methods. Abstract: The method of surface exposure dating using in-situ produced cosmogenic nuclides has become an important and widely applied tool in Quaternary. Dating of old continental sediments in arid environments. This study focuses on the dating of boulders and rock surfaces by means of paired (Be/ Al) in-situ produced cosmogenic nuclides in two mountain ranges. The first component involves. The great antiquity of the Atacama Desert means that some questions about its geological evolution.The first component involves archaeological and sedimentological case studies in the eastern transect of the CRC, employing 14C- and initial 10Be-exposure dating. Filterung aufheben. Ages from flights of fluvial fill-cut terraces at two separate locations are consistent and suggest this branch of the river formed shortly after 2 Myr ago by relatively slow fluvial incision. The results will be presented in scientific journals available under the provided DOIs. Rock material is steadily eroded at a high rate from the solid rock below the ice masses by glacier flow and transported to the edge of the glacier tongue. The different production rates and decay rates of 26Al and 10Be in combination with the burial depth can be used to calculate the time of capping. Mikronavigation Startseite Forschungsdaten Alle Forschungsdaten Dokumentanzeige. Sandra Braumann Contact Mag. Alpine glaciers erode material from the bedrock, transport it within the ice towards the valley and finally deposit rock at the ice margin, creating linear sediment deposits moraines that delineate the ice margin. Träger Deutsche Forschungsgemeinschaft e. Former lab staff: Priv. Projektzeitraum Lastly, our project aims to compare the results from cosmogenic nuclide dating with fluvial histories derived from the timing of amphipod speciation. Förderer Deutsche Forschungsgemeinschaft e. Student assistants: Jonas Bethke Former lab staff: Priv. Burial age dating The ratio of cosmogenically formed aluminum to beryllium can assign numerical ages to depositional events. Excel CSV BibTeX. Einige Cookies sind notwendig, um Ihnen die grundlegenden Funktionen dieser Webseite bereitzustellen und können daher nicht deaktiviert werden. Einige Funktionen dieser Seite funktionieren ohne JavaScript nicht. Lampert3, Klaus R. In ihrem Browser ist JavaScript deaktiviert. Schauen Sie nach: Ländlicher Raum. Mitwirkende Einrichtungen Institut für Geologie und Mineralogie. ESP, Price: The dataset comprises three files. Scientific Coordinator: Dr. Stephanie Neuhuber , M. The prerequisite for a reliable age is that the formation mechanism of sediments to be dated was geologically reconstructed.
