Luminescence chronostratigraphy for the loess deposits in Złota, Poland , , , , , , et | 24 janv. 2018
Publié en ligne: 24 janv. 2018 Pages: 44 - 55 Reçu: 18 oct. 2016 Accepté: 12 sept. 2017 © 2016 P. Moska., published by Sciendo This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Fig. 1 Loess formations in southeastern part of Poland and position of Złota and Polanów Samborzecki loess profiles. Fig. 2 A – grain size distribution. B – Reprinted from Moska et al 2015, with permission from Elsevier. Lithology, grain size distribution (MZ), magnetic susceptibility, humus and CaCO3 content for Złota loess section. Detailed lithological description is presented in Moska et al 2015. Fig. 3 Correlation of the Late Pleistocene loess–palaeosol stratigraphic units in Złota and Polanów Samborzecki. Comparison of new OSL dates with previous results. Obtained OSL results in some cases are quite different as compared with the OSL and TL dates obtained during last 10 years by other authors and presented in previous publications relating to this loess profile. Fig. 4 OxCal age–depth model (Bronk Ramsey, 2009) for polimineral grains fraction. Sample names in the current study, specific activities of natural radionuclides, dose rates, calculated equivalent doses and ages for all investigated fractions using CAM model and laboratory codes. Depth (m) Sample name U-238 (Bq/kg) Th-232 (Bq/kg) K-40 (Bq/kg) Dose rate 4–11 µm (Gy/ka) Equivalent dose De 4–11 µm (Gy) post-IR IRSL age 4–11 µm (ka) Laboratory code 0.3 Złota21 24.9±0.4 30.6±0.5 480±13 3.23±0.18 73.3±2.0 22.7±1.6 GdTL2333 1.2 Złota20 28.2±0.4 35.9±0.7 480±12 3.41±0.19 75.3±2.0 22.1±1.5 GdTL2334 1.7 Złota19 27.7±0.4 34.3±0.7 492±13 3.33±0.19 76.7±2.0 23.1±1.6 GdTL2335 2.3 Złota18 29.1±0.4 34.8±0.7 490±13 3.41±0.19 77.6±2.0 22.8±1.6 GdTL2336 3.0 Złota17 30.1±0.4 36.8±0.6 483±13 3.46±0.20 80.2±2.0 23.1±1.6 GdTL2337 3.5 Złota16 29.8±0.4 35.8±0.7 491±13 3.49±0.20 80.8±2.0 23.2±1.6 GdTL2338 4.4 Złota13 31.5±0.4 39.8±0.7 510±13 3.65±0.21 85.3±2.1 23.4±1.7 GdTL2339 5.3 Złota12 28.4±0.4 36.9±0.6 512±13 3.48±0.20 85.7±2.2 24.7±1.7 GdTL2340 5.6 Złota11 29.6±0.4 37.3±0.6 508±13 3.51±0.20 90.1±2.5 25.6±1.8 GdTL2341 6.6 Złota10 28.5±0.4 37.2±0.7 533±14 3.53±0.19 94.0±2.5 26.7±1.8 GdTL2342 72 Złota9 26.8±0.4 40.9±0.6 489±13 3.45±0.20 115.4±3.0 33.4±2.5 GdTL2343 7.5 Złota8 24.2±0.4 35.7±0.7 461±12 3.15±0.18 167.9±3.5 53.3±3.3 GdTL2344 8.4 Złota7 26.3±0.4 34.8±0.7 507±13 3.32±0.19 209.7±5.5 63.1±4.0 GdTL2345 8.9 Złota6 28.2±0.4 37.3±0.6 513±13 3.46±0.20 215.7±5.5 62.3±4.1 GdTL2346 10.0 Złota5 27.5±0.4 38.0±0.7 521±13 3.48±0.20 222.5±4.4 63.9±4.1 GdTL2347 10.8 Złota4 25.1±0.4 36.9±0.7 469±13 3.22±0.19 217.1±3.8 67.4±4.4 GdTL2348 11.2 Złota3 15.4±0.3 28.9±0.5 360±10 2.40±0.14 243.3±5.0 101.3±6.2 GdTL2349 11.9 Złota2 18.8±0.3 35.3±0.6 468±12 2.97±0.17 460±10 142.3±9.0 GdTL2350 12.5 Złota1 20.3±0.3 31.7±0.5 501±13 3.02±0.17 451±24 150±12 GdTL2351