A5069827966- Atmospheric and Environmental Gas Dynamics
- Archaeology and ancient environmental studies
- Atmospheric chemistry and aerosols
- Isotope Analysis in Ecology
- Geology and Paleoclimatology Research
- Pleistocene-Era Hominins and Archaeology
- Forensic Anthropology and Bioarchaeology Studies
- Vehicle emissions and performance
- Atmospheric Ozone and Climate
- Climate variability and models
- Hydrocarbon exploration and reservoir analysis
- Paleopathology and ancient diseases
- Nuclear and radioactivity studies
- Peatlands and Wetlands Ecology
- Air Quality Monitoring and Forecasting
- Forensic Entomology and Diptera Studies
- Groundwater and Isotope Geochemistry
- Fermentation and Sensory Analysis
- Wine Industry and Tourism
- Scientific Research and Discoveries
- Maritime and Coastal Archaeology
- Image Processing and 3D Reconstruction
- Environmental Impact and Sustainability
- Horticultural and Viticultural Research
- Coastal wetland ecosystem dynamics
University of Groningen
2014-2024
ABSTRACT The Centre for Isotope Research (CIO) at the University of Groningen has operated a radiocarbon ( 14 C) dating laboratory almost 70 years. In 2017, CIO received major upgrade, which involved relocation to new purpose-built premises, and installation MICADAS accelerator mass spectrometer. This period transition provides an opportunity update laboratory’s routine procedures. article addresses all processes quality checks in place registering, tracking pretreating samples dating....
This study investigates the accuracy of radiocarbon-based calculation biogenic carbon fraction for different biogas and biofossil gas mixtures. The focus is on uncertainty in 14 C reference values 100% 13 C-based isotope fractionation correction measured values. separately (AMS) CO 2 CH 4 fractions 8 samples showed between 102‰ 116% (pMC). δ these varied –6‰ +31‰ –28‰ –62‰ fraction. calculated due to depends available information about origin used materials. It varies ±0.5% ±3.5% (absolute)...
Attributing the start of peat growth to an absolute timescale requires dating bottom deposits overlying mineral sediment, often called basal peat. Peat initiation is reflected in stratigraphy as a gradual transition from sediment increasingly organic material, up where it So far, varying criteria have been used define peat, resulting divergent approaches date initiation. The lack universally applicable and quantitative definition, combined with multiple concerns that raised previously...
ABSTRACT The radiocarbon ( 14 C) dating facility at the Centre for Isotope Research, University of Groningen went through a major upgrade in 2017 and this included installation MICADAS accelerator mass spectrometer (AMS). In first 18 months, we performed 4000 sample 3000 reference measurements. A careful evaluation those measurement results is presented, to characterize various sources uncertainty ultimately assign, every measurement, realistic expanded uncertainty. This analysis was on...
Port is a famous sort of fortified wine, exclusively produced in the Douro region Portugal. Among various types wines, Tawny with stated maturation ages 10 or 20 years are among higher quality and more expensive ones. Fraudulently producing those shorter time than claimed, along additions treatments to mask this, would make production wines cheaper. Here, we present method, based on Radiocarbon (14C) age determination ethanol sugar residue, verify such wines. We successfully verified method...
14 C (radiocarbon) in atmospheric CO 2 is the most direct tracer for presence of fossil‐fuel‐derived (CO ‐ff). We demonstrate measurement wine ethanol as a way to determine relative regional ‐ff concentration compared background site (“regional excess”) specific harvest years. The carbon directly back traceable that plants assimilate. An important advantage using atmosphere can be monitored annually time. have analyzed total 165 wines, mainly from years 1990–1993 and 2003–2004, among which...
The 14 C/C abundance in CO 2 (Δ ) promises to provide useful constraints on regional fossil fuel emissions and atmospheric transport through the large gradients introduced by anthropogenic activity. currently sparse Δ monitoring network can potentially be augmented using plant biomass as an integrated sample of . But interpretation such requires knowledge about day‒to‒day uptake sampled plants. We investigate here required detail daily growth variations needed accurately interpret from...
Abstract Atmospheric Δ 14 CO 2 measurements are useful to investigate the regional signals of anthropogenic emissions, despite currently scarce observational network for . Plant samples an easily attainable alternative, which have been shown work well as a qualitative measure atmospheric integrated over time plant has grown. Here, we present C analysis results 89 individual maize ( Zea mays ) from 51 different locations that were gathered in Netherlands years 2010 2012, and western Germany...
This article presents results from the first 3 rounds of an international intercomparison measurements Δ14CO2 in liter-scale samples whole air by groups using accelerator mass spectrometry (AMS). The ultimate goal is to allow merging data different groups, with confidence that differences are geophysical gradients and not artifacts calibration. Eight have participated at least 1 round intercomparison, which has so far included distribution between 2007 2010. comparison intended be ongoing,...
ABSTRACT Radiocarbon ( 14 C) results on cremated bone are frequently published in high-ranking journals, but C laboratories employ different pretreatment methods as they have divergent perceptions of what sources contaminants might be present. We found protocols to vary significantly between three (Brussels [RICH], Kiel [KIA], and Groningen [CIO]), which all a long history dating bone. present case study 6 sets replicate dates, compare laboratory protocols, further 16 inter-laboratory...
Two cores from a Weichselian periglacial alluvial fan were dated using 14C and OSL, to verify the reliability of both methods check upper dating limit method. Both yielded similar chronology for core Eerbeek-I, with infinite dates lower part where OSL indicated ages over 45 ka. Finite obtained throughout Eerbeek-II, despite stratigraphic evidence suggesting beyond limits. Apparently, additional chemical pre-treatment remove younger carbon fractions did not work adequately samples this core....
This article presents results from the first 3 rounds of an international intercomparison measurements Δ 14 CO 2 in liter-scale samples whole air by groups using accelerator mass spectrometry (AMS). The ultimate goal is to allow merging data different groups, with confidence that differences are geophysical gradients and not artifacts calibration. Eight have participated at least 1 round intercomparison, which has so far included distribution between 2007 2010. comparison intended be...
Rescue excavations in Beirut, Lebanon, have uncovered large burial assemblages dating to the Roman period. As first colony Near East, human skeletons from Beirut provide a unique opportunity explore migration city using biomolecular analyses. This study applies strontium and oxygen isotope analysis nineteen establishes primary local reference values through of faunal dentition utilisation already available environmental botanical data Lebanon. Two possible incomers two definite migrants –...
Abstract We report the discovery and analysis of new Mesolithic human remains—dated to ca. 10,200–9000 cal. BP—from Arma di Nasino in Liguria, northwestern Italy, an area rich Upper Paleolithic Neolithic attestations, but for which little information on Early Holocene occupation was available. The multi-proxy isotopic profile two individuals reveals that—despite proximity site Mediterranean seashore use shellfish as decorative elements burials—the ecology these foragers based exploitation...
While processes involved in the protohistoric briquetage at Puntone (Tuscany, Italy) have been reconstructed detail, age of this industry remained uncertain since materials suited for traditional dating (14C on charcoal and typological ceramics) were very scarce. We attempted to assess its by radiocarbon organic matter carbonates strata that directly linked industry. Microbial DNA C isotope analyses showed is dominantly composed labile matter, which coeval with Carbonates had a complex...
The Aix-Marseille metropolis is the second most populated urbanized area of France. It aims at reaching carbon neutrality in 2050. Located south-east France under a Mediterranean climate, this known as hot-spot regarding climate change. Its west part strongly industrialized. local air quality monitoring agency  ATMOSUD delivers high resolved greenhouse gas emissions inventory that represents reference for stakeholders matter trajectory. However, still quite uncertain and requires...