Luminescence dating and palaeomagnetic age constraint of a last glacial loess-palaeosol sequence from Istria, Croatia

Zhang, Jingran; Rolf, Christian; Wacha, Lara; Tsukamoto, Sumiko; Durn, Goran; Frechen, Manfred

doi:10.1016/j.quaint.2018.05.045

Cited by 23 publications

(11 citation statements)

References 83 publications

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“…; Zhang et al . ), Vasiliniuc et al . () calculated fading rates ranging from 0.6 to 1.3%/decade on samples collected from the Last Glacial loess in Mircea‐Voda, Romania, and concluded they are laboratory artefacts.…”

Section: Resultsmentioning

confidence: 95%

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Testing polymineral post‐IR IRSLand quartzSAR‐OSLprotocols on Middle to Late Pleistocene loess at Batajnica, Serbia

Avram

Constantin

Vereș

et al. 2020

Boreas

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The loess–palaeosol 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 the SAR protocol on fine (4–11 μm) and coarse (63–90 μm) quartz fractions, as well as on polymineral fine grains by using two elevated temperature infrared stimulation methods, pIRIR290 and pIRIR225. We show that the upper age limit of coarse quartz OSL and polymineral pIRIR290 and pIRIR225 techniques is restricted to the Last Glacial/Interglacial cycle due to the field saturation of the natural signals. Luminescence ages on coarse quartz, pIRIR225 and pIRIR290 polymineral fine grains are in general agreement. Fine quartz ages are systematically lower than the coarse quartz and pIRIR ages, 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 Gy, respectively, suggesting that the SAR protocol provides reliable ages up to c. 50 ka on fine quartz and c. 100 ka on coarse quartz. Using the pIRIR225 and pIRIR290 protocols, equivalent doses up to ~400 Gy 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.

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Section: Resultsmentioning

confidence: 95%

“…() and Zhang et al . () reported good pIRIR 290 dose recovery ratios for the loess in the Middle Danube basin and the Chinese Loess Plateau.…”

Section: Resultsmentioning

confidence: 99%

Testing polymineral post‐IR IRSLand quartzSAR‐OSLprotocols on Middle to Late Pleistocene loess at Batajnica, Serbia

Avram

Constantin

Vereș

et al. 2020

Boreas

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“…Various values of the fading rates were reported in literature for the IRSL signal measured using pIRIR225. gvalues >1 %/decade were obtained (Buylaert et al, 2009;Thomsen et al, 2008;Zhang et al, 2018), while Vasiliniuc et al (2012) calculated g-values ranging from 0.6 to 1.3 %/decade. Previous studies reported low fading…”

Section: Equivalent Dosesmentioning

confidence: 94%

Supplementary material to "Box canyon erosion along the Canterbury coast (New Zealand): A rapid and episodic process controlled by rainfall intensity and substrate variability"

Micallef¹,

Marchis²,

Saadatkhah³

et al. 2020

Preprint

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Sample preparation and analytical facilities Luminescence samples were prepared under subdued red light condition in the luminescence laboratory from Cluj-Napoca, Romania. The material from the ends of each sample tube was used for gamma spectrometry and water content measurements whereas polymineral fine grains (4-11 µm) and coarse (63-90 µm) K-feldspars were extracted from the inner part. Samples were first treated with hydrochloric acid (10% concentration) for calcium carbonate removal, followed by a treatment with hydrogen peroxide (30% concentration) in order to remove the organic matter. All samples were wet sieved in order to collect the finer (<63 µm) and coarser (>63 µm) grains. Polymineral fine grains (4-11 µm) were obtained by settling using Stoke's law and centrifuging in distilled water (Frechen et al., 1996; Lang et al., 1996). Coarser grains in the range of 63-90 µm was obtained through dry sieving. For coarse K-rich feldspars extraction, an etching with HF (10% concentration) for 40 min was employed to remove the coating and alpha irradiated layer, and the material was then rinsed for 40 min with HCl (10% concentration) to remove any precipitated fluorides. K-feldspar enriched extracts were then separated using a heavy liquid solution with ρ<2.58 g/cm 3. Luminescence analyses were performed using TL/OSL Risø DA-20 reader equipped with automated detection and stimulation head (DASH) (Lapp et al., 2015). Luminescence signals were detected by PDM 9107Q-AP-TTL-03 (160-630 nm) photomultiplier. A blue filter combination (Schott BG36+Corning 7-59, with transmission between 320-460 nm) was used for the detection of polymineral fine grains and K-feldspar signals. Laboratory irradiations were carried out using a calibrated 90 Sr/ 90 Y beta source delivering 0.0764 Gy/s for fine grains and 0.086 Gy/s for coarse grains. K-feldspar coarse grains were mounted on stainless steel discs using silicone oil as an adhesive while for polymineral fine grains aluminium discs were used. Equivalent dose determination Equivalent doses on polymineral fine grains and K-feldspar coarse grains were determined using post-IR IRSL protocols based on SAR procedure with two different preheat and post-IR IRSL stimulation temperature combination (pIRIR290 and pIRIR225). For equivalent dose determination using pIRIR290 protocol (see Table S1a)

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“…Based on results of a previous investigation ( 17 ), we used two soil samples representative of slightly acidic and alkaline soil from Istria, Croatia – terra rossa and red palaeosol from Cretaceous limestone – dug from the upper 30 cm of 50 cm deep pits. Samples were aseptically collected in sterile plastic bags and analysed in the laboratory within 24 h of collection.…”

Section: Methodsmentioning

confidence: 99%

Metal-loaded zeolite remediation of soils contaminated with pandrug-resistant Acinetobacter baumannii

Hrenović

Dekić

Dikić

et al. 2020

Archives of Industrial Hygiene and Toxicology

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AbstractDue to the development of resistance to antimicrobial agents, bacterium Acinetobacter baumannii is nowadays a leading cause of nosocomial outbreaks. Clinically relevant A. baumannii outside hospital settings including natural soils affected by human waste represents a public-health risk for humans and animals. The aim of this study was to investigate the potential of metal-loaded zeolites to eliminate viable A. baumannii from artificially contaminated natural soils. A. baumannii isolate was subjected to the activity of natural zeolitised tuff (NZ) and Cu-modified (CuNZ) or Ag-modified zeolite (AgNZ) in wet, slightly acidic terra rossa and slightly alkaline red palaeosol. A. baumannii survived in terra rossa and red palaeosol supplemented with 1 wt% of NZ for seven days and four months, respectively. The addition of 1 wt% of CuNZ to terra rossa and red palaeosol shortened the survival of A. baumannii to three and 14 days, respectively. The addition of 0.1 wt% of AgNZ to both soils resulted in complete removal of viable A. baumannii within 1 h of contact, while the total native heterotrophic bacterial counts remained high. Since AgNZ is prepared with a simple modification of cost-effective and environmentally friendly natural zeolite, it is a promising material for the remediation of soils contaminated with pandrug-resistant A. baumannii.

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Luminescence dating and palaeomagnetic age constraint of a last glacial loess-palaeosol sequence from Istria, Croatia

Cited by 23 publications

References 83 publications

Testing polymineral post‐IR IRSLand quartzSAR‐OSLprotocols on Middle to Late Pleistocene loess at Batajnica, Serbia

Testing polymineral post‐IR IRSLand quartzSAR‐OSLprotocols on Middle to Late Pleistocene loess at Batajnica, Serbia

Supplementary material to "Box canyon erosion along the Canterbury coast (New Zealand): A rapid and episodic process controlled by rainfall intensity and substrate variability"

Metal-loaded zeolite remediation of soils contaminated with pandrug-resistant Acinetobacter baumannii

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Luminescence dating and palaeomagnetic age constraint of a last glacial loess-palaeosol sequence from Istria, Croatia

Cited by 23 publications

References 83 publications

Testing polymineral post‐IR IRSLand quartzSAR‐OSLprotocols on Middle to Late Pleistocene loess at Batajnica, Serbia

Testing polymineral post‐IR IRSLand quartzSAR‐OSLprotocols on Middle to Late Pleistocene loess at Batajnica, Serbia

Supplementary material to &quot;Box canyon erosion along the Canterbury coast (New Zealand): A rapid and episodic process controlled by rainfall intensity and substrate variability&quot;

Metal-loaded zeolite remediation of soils contaminated with pandrug-resistant Acinetobacter baumannii

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Supplementary material to "Box canyon erosion along the Canterbury coast (New Zealand): A rapid and episodic process controlled by rainfall intensity and substrate variability"