(hsv:(NATURVETENSKAP) hsv:(Geovetenskap och miljövetenskap) hsv:(Geologi)) pers:(Ahlberg Per)
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Age constraints for the Trachilos footprints from Crete
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- Kirscher, Uwe (author)
- Eberhard Karls Univ Tubingen, Dept Geosci, D-72076 Tubingen, Germany.;Senckenberg Ctr Human Evolut & Palaeoenvironm, Tubingen, Germany.
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- El Atfy, Haytham (author)
- Eberhard Karls Univ Tubingen, Dept Geosci, D-72076 Tubingen, Germany.;Mansoura Univ, Fac Sci, Dept Geol, Mansoura 35516, Egypt.
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- Gaertner, Andreas (author)
- Senckenberg Naturhist Sammlungen Dresden, Museum Mineral & Geol, Sekt Geochronol, Konigsbrucker Landstr 159, D-01109 Dresden, Germany.
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- Eberhard Karls Univ Tubingen, Dept Geosci, D-72076 Tubingen, Germany;Senckenberg Ctr Human Evolut & Palaeoenvironm, Tubingen, Germany. Eberhard Karls Univ Tubingen, Dept Geosci, D-72076 Tubingen, Germany.;Mansoura Univ, Fac Sci, Dept Geol, Mansoura 35516, Egypt. (creator_code:org_t)
- 2021-10-11
- 2021
- English.
- In: Scientific Reports. - : Springer Nature. - 2045-2322. ; 11:1
- Journal article (peer-reviewed)
Abstract
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- We present an updated time frame for the 30 m thick late Miocene sedimentary Trachilos section from the island of Crete that contains the potentially oldest hominin footprints. The section is characterized by normal magnetic polarity. New and published foraminifera biostratigraphy results suggest an age of the section within the Mediterranean biozone MMi13d, younger than similar to 6.4 Ma. Calcareous nannoplankton data from sediments exposed near Trachilos and belonging to the same sub-basin indicate deposition during calcareous nannofossil biozone CN9bB, between 6.023 and 6.727 Ma. By integrating the magneto- and biostratigraphic data we correlate the Trachilos section with normal polarity Chron C3An.1n, between 6.272 and 6.023 Ma. Using cyclostratigraphic data based on magnetic susceptibility, we constrain the Trachilos footprints age at similar to 6.05 Ma, roughly 0.35 Ma older than previously thought. Some uncertainty remains related to an inaccessible interval of similar to 8 m section and the possibility that the normal polarity might represent the slightly older Chron C3An.2n. Sediment accumulation rate and biostratigraphic arguments, however, stand against these points and favor a deposition during Chron C3An.1n.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
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