<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">The present investigation conducted in Čepkeliai peatland (south-eastern Lithuania) deals with two radioisotope methods - carbon-14 (14C) and tritium (3H). 14C was applied to peatland chronology and sedimentation rate estimation and 3H to peat water dynamics characterization. According to 14C data, peatland development began since 12650-11350 years cal BP and peat accumulation since 10550-9700 years cal BP with peat accumulation rate of 0.27-0.79 mm/year in the central part of the peatland. The peat water mean residence time and basic groundwater flow was estimated to be respectively about 27±6 years and 62±15 mm based on 3H data. The obtained data showed relatively undisturbed natural condition of Čepkeliai peatland in the studied sites.</abstract>

The present investigation conducted in Čepkeliai peatland (south-eastern Lithuania) deals with two radioisotope methods - carbon-14 (14C) and tritium (3H). 14C was applied to peatland chronology and sedimentation rate estimation and 3H to peat water dynamics characterization. According to 14C data, peatland development began since 12650-11350 years cal BP and peat accumulation since 10550-9700 years cal BP with peat accumulation rate of 0.27-0.79 mm/year in the central part of the peatland. The peat water mean residence time and basic groundwater flow was estimated to be respectively about 27±6 years and 62±15 mm based on 3H data. The obtained data showed relatively undisturbed natural condition of Čepkeliai peatland in the studied sites.

The Use of Carbon-14 and Tritium For Peat and Water Dynamics Characterization: Case of Čepkeliai Peatland, Southeastern Lithuania

Institute of Geology and Geography, T. Ševčenkos Str. 13, LT-03223 Vilnius, Lithuania

Vilnius University, M.K. Čiurlionio Str. 21/27, LT-03101, Vilnius, Lithuania

Čepkeliai State Nature Reserve, Šilagėlių str. 11, Marcinkonys, LT-65303 Varėna district, Lithuania

Geochronometria

The present investigation conducted in Čepkeliai peatland (south-eastern Lithuania) deals with two radioisotope methods - carbon-14 (14C) and tritium (3H). 14C...

The Use of Carbon-14 and Tritium For Peat and Water Dynamics Characterization: Case of Čepkeliai Peatland, Southeastern Lithuania

Publié en ligne: 14 déc. 2009

Pages: 41 - 48

DOI: https://doi.org/10.2478/v10003-009-0007-3

Mots clés
Carbon-14, Tritium, Peat, Groundwater Residence Time, Holocene

This content is open access.

The Use of Carbon-14 and Tritium For Peat and Water Dynamics Characterization: Case of Čepkeliai Peatland, Southeastern Lithuania

Publié en ligne: 14 déc. 2009

Pages: 41 - 48

DOI: https://doi.org/10.2478/v10003-009-0007-3

Mots clésCarbon-14, Tritium, Peat, Groundwater Residence Time, Holocene

This content is open access.

Mots clés
Carbon-14, Tritium, Peat, Groundwater Residence Time, Holocene