{"type": "FeatureCollection", "features": [{"id": "10.1016/j.quageo.2018.07.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:16:02Z", "type": "Journal Article", "created": "2018-07-24", "title": "Luminescence age constraints on the Pleistocene-Holocene transition recorded in loess sequences across SE Europe", "description": "\u00a9 2018 The Authors Here we investigate the timing of the last glacial loess (L1) - Holocene soil (S0) transition recorded in loess-paleosol sequences from SE Europe (Ukraine, Romania, Serbia) by applying comparative luminescence dating techniques on quartz and feldspars. Equivalent dose measurements were carried out using the single-aliquot regenerative-dose (SAR) protocol on silt (4\u201311 \u03bcm) and sand-sized (63\u201390 \u03bcm and coarser fraction when available) quartz. Feldspar infrared stimulated luminescence (IRSL) emitted by 4\u201311 \u03bcm polymineral grains was measured using the post IR-IRSL290 technique. The paleoenvironmental transition from the last glacial loess to the current interglacial soil was characterized using magnetic susceptibility and its frequency dependence. SAR-OSL dating of 4\u201311 \u03bcm, 63\u201390 \u03bcm and 90\u2013125 \u03bcm quartz provided consistent ages in the loess-paleosol sites investigated, while the post-IR IRSL290 protocol proved unreliable for dating such young samples. Based on these ages and the threshold of the magnetic signal enhancement the onset of soil formation has been placed around 16.6 \u00b1 1.1 ka at Roxolany (Ukraine), 13.5 \u00b1 0.9 ka at Mo\u0161orin (Serbia) and between 17.6 \u00b1 1.4 ka and 12.4 \u00b1 1.0 ka at R\u00e2mnicu S\u0103rat (Romania). The trend observed in the magnetic parameters reflects the intensity of pedogenesis induced by regional climate amelioration during the Late Glacial, but the onset of magnetic susceptibility enhancement precedes the stratigraphic boundary of Pleistocene-Holocene dated at 11.7 ka in ice core records. Thus, magnetic susceptibility indicates a gradual increase in pedogenesis after Termination 1 (\u223c17 ka in the North Atlantic) at the sampling sites. Based on current data, it is not possible to define a synchronous threshold of change for all sections. However, the trend in the magnetic susceptibility data closely reflects the gradual transition from Last Glacial Maximum (LGM) towards the Holocene, with the onset of humus accumulation (A1 horizon) possibly linked to the prevalence of full interglacial conditions.", "keywords": ["PROTOCOL", "Luminescence dating", "Loess", "01 natural sciences", "Southeastern europe", "Magnetic susceptibility", "13. Climate action", "PROXIES", "QUARTZ", "/dk/atira/pure/sustainabledevelopmentgoals/climate_action; name=SDG 13 - Climate Action", "Pleistocene-holocene transition", "IRSL", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.quageo.2018.07.011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Quaternary%20Geochronology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.quageo.2018.07.011", "name": "item", "description": "10.1016/j.quageo.2018.07.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.quageo.2018.07.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-02-01T00:00:00Z"}}, {"id": "10.1016/j.quascirev.2018.09.037", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:16:02Z", "type": "Journal Article", "created": "2018-10-06", "title": "Short-term soil formation events in last glacial east European loess, evidence from multi-method luminescence dating", "description": "Here we provide a robust luminescence chronology for Stayky (Ukraine), a reference profile in European Late Pleistocene loess stratigraphy, based on optically stimulated luminescence (OSL) dating on quartz (4-11 \u03bcm, 63-90 \u03bcm) and post infrared-infrared stimulated luminescence (pIR-IRSL)) on polymineral fine grains. For the Bug loess unit, the equivalent of Marine Isotope Stage (MIS 2), results are in agreement between methods, demonstrating that the suite of embryonic soils previously interpreted as reflecting climate variability similar to Greenland interstadials (GI) actually date to \u223c29/27-15 ka, with most emplaced around or after 20 ka. This temporal span is further confirmed by age-depth modelling of available data. Apart from GI-2, no interstadial-type climate events are recorded in Greenland ice core data for that time interval. As short-term pedogenetic phases are also documented in records from central-western Europe, there is a need for more research into the European mid-latitude terrestrial environments response to MIS 2 hydroclimate variability. The dating of Vytachiv paleosol, previously debatably linked to various GI events within MIS 3 resulted in ages of \u223c40 \u00b1 4 ka and \u223c53 \u00b1 4 ka at the lower transition, and \u223c26 \u00b1 2 ka to \u223c30 \u00b1 2 ka in the overlying loess. These ages indicate that the truncated Vytachiv paleosol is either not continuous, or that it encompasses a broader age range within MIS 3 than previously considered. In both cases, data would not allow for an unambiguous linking of this paleosol with specific GI events as previously attempted. The pIR-IRSL290 dating of the loams immediately underneath Pryluky unit in the range of \u223c120 ka to \u223c168 ka and of the Pryluky mollisol from \u223c90 ka to 126 ka confirm the broad correspondence of this unit with MIS 5, although poor dose recovery results open the possibility for further testing on the degree these ages provide overestimated results. Quartz data severely underestimate the pIR-IRSL290 ages for these samples. The application of pIR-IRSL290 dating for the underlying Dnieper till previously linked to the Saalian glaciation resulted in natural signals at the level of laboratory saturation, yielding minimum ages of c. 700 ka. For the same sample, the natural SAR-OSL signals for 4-11 \u03bcm quartz were found significantly below laboratory saturation level, resulting in finite ages of \u223c250-270 ka interpreted here as underestimates, while coarse quartz (63-90 \u03bcm) signals reached about 85% of the laboratory saturation level. These data suggest extreme caution must be taken when dating such old samples using quartz OSL. Results from our high-resolution luminescence dating raises important implications for the chronological representativeness of Stayky as a key loess site in Eastern Europe beyond MIS 2.", "keywords": ["Embryonic soils", "550", "Millennial-scale loess records", "Luminescence dating", "Loess", "Eastern Europe", "551", "Climate dynamics", "Pleistocene", "[SDU.STU.CL] Sciences of the Universe [physics]/Earth Sciences/Climatology", "[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology", "13. Climate action", "[SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy", "[SDU.STU.ST] Sciences of the Universe [physics]/Earth Sciences/Stratigraphy", "MIS 2 embryonic soils"]}, "links": [{"href": "https://doi.org/10.1016/j.quascirev.2018.09.037"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Quaternary%20Science%20Reviews", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.quascirev.2018.09.037", "name": "item", "description": "10.1016/j.quascirev.2018.09.037", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.quascirev.2018.09.037"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-11-01T00:00:00Z"}}, {"id": "10.1016/j.optmat.2025.117551", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:16:00Z", "type": "Journal Article", "created": "2025-09-24", "title": "Er3+/Yb3+ co-activated YNbO4 nanocrystalline phosphors: Up-conversion luminescence under the 980\u00a0nm excitation and integrated lifetime thermometry", "description": "This paper presents the structure, morphology, optical and photoluminescent properties of erbium (1 at %) and ytterbium (2 at %) doped yttrium niobium oxide (YNbO<inf>4</inf>) as a potential temperature sensor material. Obtained powder samples of fergusonite-\u03b2-like monoclinic crystalline structure of YNbO<inf>4</inf>, confirmed by X-ray diffraction analysis, showed particles of about 1\u20133 \u03bcm in size. Photoluminescence emissions were detected in the visible (Vis) and near-infrared (NIR) regions after excitation at 980 nm as a result of the energy up-conversion (UC) process. The lifetime of the most intense Er<sup>3+</sup> excited state <sup>4</sup>S<inf>3/2</inf> level measured at 300 K was 0.238 ms. Thermometric properties were recorded at different temperatures and analyzed for the first time using the luminescence emission decay method. The relative sensitivity decreases from 0.23 % to 0.085 % K<sup>\u22121</sup>, by varying the temperature from 300 to 600 K, indicating a good potential of this material for lifetime-based phosphor thermometry.", "keywords": ["Luminescence", "Powder processing", "Semiconductors", "Temperature sensing", "Nanocrystalline microstructure"], "contacts": [{"organization": "Tamara B. Iveti\u0107, Boris Banjac, Ljubica \u0110a\u010danin Far, Dragana \u0160trbac, Zoran Risti\u0107,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.optmat.2025.117551"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Optical%20Materials", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.optmat.2025.117551", "name": "item", "description": "10.1016/j.optmat.2025.117551", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.optmat.2025.117551"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2026-01-01T00:00:00Z"}}, {"id": "10.1016/j.quascirev.2019.106130", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:16:02Z", "type": "Journal Article", "created": "2020-01-06", "title": "Latest Pleistocene to Holocene loess in the central Great Plains: Optically stimulated luminescence dating and multi-proxy analysis of the enders loess section (Nebraska, USA)", "description": "Loess deposits of the central Great Plains, USA, and their intercalated soils provide a detailed record of climatically driven changes within the aeolian system during the Pleistocene-Holocene transition and the Holocene. Here we present a detailed optically stimulated luminescence (OSL) chronology as well as multi-proxy analysis obtained for the first time on the Enders section, located in southwestern Nebraska, central Great Plains. The section records multiple episodes of rapid loess deposition alternating with soil formation. Rapid accumulation of Late Pleistocene Peoria Loess was replaced around 13-14 ka by formation of the Brady Soil until 9.5 \u00b1 0.6 ka. The Holocene Bignell Loess then buried the Brady Soil and accumulated episodically throughout the Holocene. The loess-paleosol stratigraphy since the Late Pleistocene at the Enders site is very similar to that at other sites in western Nebraska, and the newly developed OSL chronology (based on three grain size classes) adds new confidence to earlier dating. The high-resolution grain size profile from Enders shares many features with similar data from the previously studied Wauneta site, including three peaks of fine-grained material just above and within the Brady Soil, likely representing response to millennial-scale climatic changes during the Pleistocene-Holocene transition. This study demonstrates the potential for developing high-resolution, well-dated paleoclimatic records from the loess of the central Great Plains. Contrasts between Great Plains and Eurasian loess records reflect differences in the Late Pleistocene to Holocene climatic evolution and other factors influencing the loess system.", "keywords": ["15. Life on land", "01 natural sciences", "Holocene; loess; optically stimulated luminescence dating; grain size; magnetic susceptibility; stable isotopes; Brady Soil", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.quascirev.2019.106130"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Quaternary%20Science%20Reviews", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.quascirev.2019.106130", "name": "item", "description": "10.1016/j.quascirev.2019.106130", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.quascirev.2019.106130"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-02-01T00:00:00Z"}}, {"id": "10.1016/j.radmeas.2018.06.008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:16:02Z", "type": "Journal Article", "created": "2018-06-05", "title": "Single and multi-grain OSL investigations in the high dose range using coarse quartz", "description": "Abstract   There is evidence that optically stimulated luminescence (OSL) dating of quartz using the single-aliquot regenerative-dose (SAR) protocol underestimates the equivalent dose (De) for paleodoses above 100\u2013200\u202fGy. Additionally, \u2018infinitely\u2019 old samples found not to be in laboratory saturation were reported. We present single and multi-grain SAR-OSL investigations for a coarse-grained (180\u2013250\u202f\u03bcm) quartz sample extracted from loess collected below the Brunhes/Matuyama transition at the Roksolany site (Ukraine). The sample was dated to more than 1000 ka by electron spin resonance using a multi center approach (Al and Ti signals), confirming that the De (\u223c2000\u202fGy) falls beyond the limit of standard OSL De measurement techniques. However, the natural signal measured using multi-grain aliquots of quartz was found to be below the laboratory saturation level. A comparison was made between synthetic dose response curves (DRCs) generated from single-grain and multi-grain aliquot data, respectively; the natural signal was found to be closer to the latoratory saturation level (92%) in the case of the single-grain synthetic DRC than for the multi-grain synthetic DRC where the signal was 86% of the saturation level. This difference could not be attributed to stimulation with different wavelengths, i.e. blue and green light stimulation for multi and single-grain measurements, respectively. By analysing synthetic data obtained by grouping grains according to their brightness, it was observed that brighter grains give a natural signal closer to the laboratory saturation level. This trend was confirmed for multi-grain aliquot data. Based on these findings we infer that variability in the contribution from populations of grains with different levels of brightness may represent a controlling factor in the closeness of the natural signal to laboratory saturation level for infinitely old samples.", "keywords": ["Multi-grain aliquots", "03 medical and health sciences", "0302 clinical medicine", "Quartz dose response", "\u2018Infinitely\u2019 old", "Optically stimulated luminescence (OSL)", "Saturation", "Single grains", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.radmeas.2018.06.008"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Radiation%20Measurements", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.radmeas.2018.06.008", "name": "item", "description": "10.1016/j.radmeas.2018.06.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.radmeas.2018.06.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-12-01T00:00:00Z"}}, {"id": "10.1016/j.watres.2022.118628", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:16:28Z", "type": "Journal Article", "created": "2022-05-17", "title": "Investigation of hydrodynamic cavitation induced reactive oxygen species production in microchannels via chemiluminescent luminol oxidation reactions", "description": "Hydrodynamic cavitation was evaluated for its reactive oxygen species production in several convergent-divergent microchannel at the transition from micro to milli scale. Channel widths and heights were systematically varied to study the influence of geometrical parameters at the transitory scale. A photomultiplier tube was used for time-resolved photon detection and monitoring of the chemiluminescent luminol oxidation reactions, allowing for a contactless and in situ quantization of reactive oxygen species production in the channels. The radical production rates at various flow parameters were evaluated, showing an optimal yield per flow rate exists in the observed geometrical range. While cavitation cloud shedding was the prevailing regime in this type of channels, the photon arrival time analysis allowed for an investigation of the cavitation structure dynamics and their contribution to the chemical yield, revealing that radical production is not linked to the synchronous cavitation cloud collapse events. Instead, individual bubble collapses occurring throughout the cloud formation were recognized to be the source of the reactive oxygen species.", "keywords": ["convergent-divergent channels", "kemoluminiscenca", "free radicals", "Free radicals", "Photon counting", "microscale cavitation", "kavitacija", "info:eu-repo/classification/udc/532.528", "0404 agricultural biotechnology", "Microscale cavitation", "cavitation cloud shedding", "kavitacija", " prosti radikali", " kemoluminiscenca", "photon counting", "Convergent-divergent channels", "[SPI.FLUID] Engineering Sciences [physics]/Reactive fluid environment", "04 agricultural and veterinary sciences", "Luminol chemiluminescence", "Cavitation cloud shedding", "info:eu-repo/classification/udc/532", "Luminescent Measurements", "Hydrodynamics", "luminol chemiluminescence", "cavitation cloud shedding", " free radicals", " photon counting", " microscale cavitation", " luminol chemiluminescence", " convergent-divergent channels", "Luminol", "Reactive Oxygen Species", "0405 other agricultural sciences", "prosti radikali", "Oxidation-Reduction"]}, "links": [{"href": "https://doi.org/10.1016/j.watres.2022.118628"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Water%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.watres.2022.118628", "name": "item", "description": "10.1016/j.watres.2022.118628", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.watres.2022.118628"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-01T00:00:00Z"}}, {"id": "10.1111/bor.12442", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:17:29Z", "type": "Journal Article", "created": "2020-05-04", "title": "Testing polymineral post\u2010 IR IRSL and quartz SAR \u2010 OSL protocols on Middle to Late Pleistocene loess at Batajnica, Serbia", "description": "<p>The loess\uffe2\uff80\uff93palaeosol sequence of Batajnica (Vojvodina region, Serbia) is considered as one of the most complete and thickest terrestrial palaeoclimate archives for the Middle and Late Pleistocene. In order to achieve a numerical chronology for this profile, four sets of ages were obtained on 18 individual samples. Equivalent doses were determined using theSARprotocol on fine (4\uffe2\uff80\uff9311\uffc2\uffa0\uffce\uffbcm) and coarse (63\uffe2\uff80\uff9390\uffc2\uffa0\uffce\uffbcm) quartz fractions, as well as on polymineral fine grains by using two elevated temperature infrared stimulation methods,pIRIR290andpIRIR225. We show that the upper age limit of coarse quartzOSLand polymineralpIRIR290andpIRIR225techniques is restricted to the Last Glacial/Interglacial cycle due to the field saturation of the natural signals. Luminescence ages on coarse quartz,pIRIR225andpIRIR290polymineral fine grains are in general agreement. Fine quartz ages are systematically lower than the coarse quartz andpIRIRages, the degree of underestimation increasing with age. Comparison between natural and laboratory dose response curves indicate the age range over which each protocol provides reliable ages. For fine and coarse quartz, the natural and laboratory dose response curves overlap up to ~150 and ~250\uffc2\uffa0Gy, respectively, suggesting that theSARprotocol provides reliable ages up toc.\uffc2\uffa050 ka on fine quartz andc.\uffc2\uffa0100 ka on coarse quartz. Using thepIRIR225andpIRIR290protocols, equivalent doses up to ~400\uffc2\uffa0Gy can be determined, beyond which in the case of the former the natural dose response curve slightly overestimates the laboratory dose response curve. Our results suggest that the choice of the mineral and luminescence technique to be used for dating loess sediments should take into consideration the reported limited reliability.</p>", "keywords": ["Luminescence dating", " quartz", " feldspars", " loess", " Pleistocene", "Original Articles", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12442"}, {"href": "https://doi.org/10.1111/bor.12442"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Boreas", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/bor.12442", "name": "item", "description": "10.1111/bor.12442", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/bor.12442"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-05-04T00:00:00Z"}}, {"id": "10.3390/mps3010019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:19:27Z", "type": "Journal Article", "created": "2020-02-28", "title": "Single Aliquot Regeneration (SAR) Optically Stimulated Luminescence Dating Protocols Using Different Grain-Sizes of Quartz: Revisiting the Chronology of Mircea Vod\u0103 Loess-Paleosol Master Section (Romania)", "description": "<p>The loess-paleosol archive from Mircea Vod\uffc4\uff83 (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\uffe2\uff80\uff9311 \uffc2\uffb5m) and coarse (63\uffe2\uff80\uff9390 \uffc2\uffb5m) 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 (De) 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.</p>", "keywords": ["grain size", "QH301-705.5", "luminescence dating; loess; optically stimulated luminescence; single aliquot regeneration protocol; quartz; grain size", "luminescence dating", "optically stimulated luminescence", "Biology (General)", "loess", "quartz", "01 natural sciences", "single aliquot regeneration protocol", "Article", "0105 earth and related environmental sciences"]}, "links": [{"href": "http://www.mdpi.com/2409-9279/3/1/19/pdf"}, {"href": "https://www.mdpi.com/2409-9279/3/1/19/pdf"}, {"href": "https://doi.org/10.3390/mps3010019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Methods%20and%20Protocols", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/mps3010019", "name": "item", "description": "10.3390/mps3010019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/mps3010019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-02-27T00:00:00Z"}}, {"id": "10.5281/zenodo.4536871", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-21T16:21:09Z", "type": "Journal Article", "created": "2021-05-01", "title": "Investigations on the luminescence properties of quartz and feldspars extracted from loess in the Canterbury Plains, New Zealand South Island", "description": "<p>The applicability of the single-aliquot regenerative-dose (SAR) protocol, by using the optically stimulated luminescence (OSL) signal of quartz as well as the post-infrared\uffe2\uff80\uff93infrared (pIRIR) signals of polymineral fine grains, namely pIRIR&lt;sub&gt;225&lt;/sub&gt; and pIRIR&lt;sub&gt;290&lt;/sub&gt;, was assessed for dating loess in New Zealand South Island. OSL signals of quartz grains displayed low sensitivity. However, the application of repeated irradiation/bleaching cycles did not result in an increase in sensitivity; annealing in the 300\uffe2\uff80\uff93500\uffc2\uffb0C temperature range generated the sensitisation of both the 110\uffc2\uffb0C thermoluminescence (TL) peak as well as the OSL signal, likely by activation of yet unidentified luminescence centres. After heating, the quartz signal is comparable to that of ideal samples, but the annealing is precluding successful dating. On the other hand, feldspar infrared-stimulated signals displayed satisfactory properties, allowing estimation of ages ranging from 14 \uffc2\uffb1 1\uffe2\uff80\uff9329 \uffc2\uffb1 3 ka for the investigated deposit. It was shown that pIRIR&lt;sub&gt;225&lt;/sub&gt; and pIRIR&lt;sub&gt;290&lt;/sub&gt; methods have potential for dating loess in the South Island of New Zealand, based on the following observations: (i) Dose recovery tests were successful with recovered-to-given dose ratios with a &lt;10% deviation from unity, (ii) constant residual values of about 4 Gy and about 10 Gy were obtained after exposures for 48 h in the case of pIRIR&lt;sub&gt;225&lt;/sub&gt; signals and 96 h in the case of pIRIR&lt;sub&gt;290&lt;/sub&gt; signals, respectively, (iii) while a slight dose-dependence of the residual was reported, and for a dose as large as 1600 Gy the residual values are \uffe2\uff89\uff859 Gy and \uffe2\uff89\uff8519 Gy for pIRIR&lt;sub&gt;225&lt;/sub&gt; and pIRIR&lt;sub&gt;290&lt;/sub&gt; signals, respectively.</p>", "keywords": ["Mass-wasting -- New Zealand", "quartz; feldspar; luminescence; sensitivity; loess; New Zealand", "Submarine topography -- New Zealand", "Landslide hazard analysis -- New Zealand", "Submarine geology -- New Zealand", "15. Life on land", "Marine sediments -- New Zealand", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://oceanrep.geomar.de/id/eprint/52652/1/10.2478_geochr-2021-0005.pdf"}, {"href": "https://oceanrep.geomar.de/id/eprint/52652/2/geochr-2021-0005_sm.pdf"}, {"href": "https://doi.org/10.5281/zenodo.4536871"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geochronometria", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.4536871", "name": "item", "description": "10.5281/zenodo.4536871", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.4536871"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-04-30T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Luminescence&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Luminescence&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Luminescence&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Luminescence&offset=9", "hreflang": "en-US"}], "numberMatched": 9, "numberReturned": 9, "distributedFeatures": [], "timeStamp": "2026-09-22T15:05:04.031306Z"}