05 Apr 2022
05 Apr 2022
Status: this preprint is currently under review for the journal TC.

Brief communication: Tritium concentration and age of firn accumulation in ice caves of Mt. Olympos (Greece)

Georgios Lazaridis1,, Konstantinos Stamoulis2,, Despina Dora1, Iraklis Kalogeropoulos3, and Konstantinos Prokopis Trimmis4 Georgios Lazaridis et al.
  • 1School of Geology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
  • 2Physics Department, University of Ioannina, Ioannina, 45221, Greece
  • 3Hellenic Speleological Society, Thessaloniki, 54124, Greece
  • 4Department of Anthropology and Archaeology, University of Bristol, Bristol, BS8 1TH, England
  • These authors contributed equally to this work.

Abstract. Firn from an ice cave in the highest mountain of Greece, Mt. Olympos, was sampled and analysed to determine the tritium content in order to estimate rates of accumulation and to date the ice plug. The presence of a sharp raise of tritium content because of the nuclear testing era was expected to be preserved into ice beds. This peak did not appear in the analysed samples providing an age estimation of less than 50 years. It is suggested that the rate of melting is responsible for the absence of older firn layers.

Georgios Lazaridis et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on tc-2022-25', Tanguy Racine, 20 Apr 2022
    • AC1: 'Reply on RC1', Georgios Lazaridis, 30 May 2022
  • RC2: 'Comment on tc-2022-25', Zoltán Kern, 08 Jul 2022
    • AC2: 'Reply on RC2', Georgios Lazaridis, 19 Jul 2022

Georgios Lazaridis et al.

Georgios Lazaridis et al.


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Short summary
Christaki Pothole is located at 2,350 m in Mt. Olympos, the highest mountain of Greece, over the permanent snow line for Greek latitude. The eruption of the tritium content in the water cycle resulting from the nuclear tests of the ’50s and ’60s, allows the dating of firn samples from the ice cave. The nuclear era was not detected in ice from the Olympic cave and the basic reason is considered the ice melting rate.