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      Single Aliquot Regeneration (SAR) Optically Stimulated Luminescence Dating Protocols Using Different Grain-Sizes of Quartz: Revisiting the Chronology of Mircea Vodă Loess-Paleosol Master Section (Romania)

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          Abstract

          The loess-paleosol archive from Mircea Vodă (Romania) represents one of the most studied sections in Europe. We are applying here the current state of the art luminescence dating protocols for revisiting the chronology of this section. Analysis were performed on fine (4–11 µm) and coarse (63–90 µm) quartz extracts using the single aliquot regenerative (SAR) optically stimulated luminescence (OSL) dating protocol. Laboratory generated SAR dose response curves in the high dose range (5 kGy for fine quartz and 2 kGy for coarse quartz) were investigated by employing a test dose of either 17 or 170 Gy. The results confirm the previously reported different saturation characteristics of the two quartz fractions, with no evident dependency of the equivalent dose (D e) on the size of the test dose. The OSL SAR ages are discussed and compared to the previously obtained results on quartz and feldspars. The previous reports regarding the chronological discrepancy between the two quartz fractions are confirmed. However, while previous investigations on other sites concluded that this discrepancy appears only above equivalent doses of about 100 Gy, here fine grain quartz ages underestimate coarse quartz ages starting with equivalent doses as low as around 50 Gy.

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          A Pliocene-Pleistocene stack of 57 globally distributed benthic δ18O records

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            Luminescence dating of quartz using an improved single-aliquot regenerative-dose protocol

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              Cosmic ray contributions to dose rates for luminescence and ESR dating: Large depths and long-term time variations

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                Author and article information

                Journal
                Methods Protoc
                Methods Protoc
                mps
                Methods and Protocols
                MDPI
                2409-9279
                27 February 2020
                March 2020
                : 3
                : 1
                Affiliations
                [1 ]Interdisciplinary Research Institute on Bio-Nano-Science, Babes-Bolyai University, 400000 400271 Cluj-Napoca, Romania; smgroza@ 123456yahoo.com
                [2 ]Faculty of Environmental Science and Engineering, Babes-Bolyai University, 400000 400294 Cluj-Napoca, Romania
                [3 ]Faculty of Physics, University of Bucharest, 030018 077125 Magurele, Romania; cristian.panaiotu@ 123456gmail.com
                Author notes
                Article
                mps-03-00019
                10.3390/mps3010019
                7189666
                32121026
                0cba1e56-aab2-4d83-9bcf-2b8f7d3df09e
                © 2020 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

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