A5051291275- Maritime and Coastal Archaeology
- Marine and environmental studies
- Groundwater and Isotope Geochemistry
- Isotope Analysis in Ecology
- Geology and Paleoclimatology Research
- Archaeology and ancient environmental studies
- Karst Systems and Hydrogeology
- Ancient and Medieval Archaeology Studies
- Atmospheric and Environmental Gas Dynamics
- Radioactive contamination and transfer
- Radioactivity and Radon Measurements
- Nuclear Physics and Applications
- Environmental Science and Water Management
- Geological Formations and Processes Exploration
- Water Quality and Pollution Assessment
- Aquatic Ecosystems and Phytoplankton Dynamics
- Regional Development and Management Studies
- Oceanographic and Atmospheric Processes
- Radiation Detection and Scintillator Technologies
- Marine and coastal ecosystems
- Heavy metals in environment
- Cultural Heritage Materials Analysis
- Groundwater and Watershed Analysis
- Building materials and conservation
- Archaeological Research and Protection
Rudjer Boskovic Institute
2015-2024
University of Arizona
2019
Institut de l'Information Scientifique et Technique
2019
The isotope composition of precipitation has been monitored in monthly at Zagreb, Croatia, since 1976. Here, we present a statistical analysis available long-term data (3H activity concentration, δ2H, δ18O, and deuterium excess) compare them to basic meteorological data. aim was see whether reflected observed climate changes Zagreb: significant increase the annual air temperature larger variations amount. Annual mean δ18O δ2H values showed an 0.017‰ 0.14‰ per year, respectively, with...
Two methods of chemical preparation radiocarbon samples are implemented in the Zagreb Radiocarbon Laboratory for measurement by a new liquid scintillation counter (LSC), Quantulus 1220 ™ : CO 2 absorption method (LSC-A) and benzene synthesis (LSC-B). For prepared both methods, optimal counting windows LSC were determined. The total efficiency LSC-A is 65% that LSC-B 83%, while corresponding 14 C dating limits 31,800 yr 52,160 yr, respectively. activities measured compared with those gas...
The main purpose of this study was to understand the interactions between precipitation, surface water, and groundwater in Zagreb aquifer system using water stable isotopes. is unconfined type strongly hydraulically connected Sava River. As source drinking for one million inhabitants, it essential investigate each detail recharge processes ensure adequate protection groundwater. Measuring content isotopes waters enabled creation two- three-component mixing models based on isotopic mass...
Radiocarbon analyses of 14 modern, pre-bomb marine organisms collected between AD 1836 and 1946 along the eastern Adriatic coast were performed. The C ages five algal nine mollusk samples measured by accelerator mass spectrometry (AMS). Marine reservoir (R) regional offsets (ΔR) calculated compared. shells algae significantly differ, even though both inhabit hard substrate from intertidal zone to shallow sea. Coralline had a considerably lower age (355 ± 34 yr) ΔR value (–9 than mollusks (R...
Five short cores (top 40–45 cm of sediment) from 4 lakes the Plitvice Lakes system (Croatia) were measured for 210 Pb, 137 Cs, a 14 C, δ 13 and 18 O in order to study influence environmental changes on sediment small large lakes. Sediment chronology based constant flux (CF) Pb model was most reliable. Lake sediments consisted mainly autochthonous carbonates with higher sedimentation rates Sediments 2 lakes, Prošće Kozjak, showed stable isotope profiles carbonate fraction full agreement...
Plitvice Lakes waters were collected at 14 sampling points, including springs, tributaries and lakes, for the period 2002–2007. The results of physical chemical conditions calcite precipitation as well δ13C values dissolved inorganic carbon (DIC) used to study processes influencing precipitation. Significant differences between spring, lake stream changes in downstream direction observed. correlation δ13CDIC physico-chemical showed that precipitates which are oversaturated with respect CaCO3...
Nitrates are among the most common groundwater contaminants worldwide, and same situation is present within Zagreb aquifer. The aquifer presents only source of potable water for inhabitants City part County. Isotopic composition ( δ 2 H 18 O) nitrates 15 N O), chemistry, molar ratios, in combination with correlation multivariate statistical methods, have been used estimation nitrate origin. Nitrate stable isotopes excluded synthetic fertilizer as main contamination. They showed insignificant...
The application of tritium, 2H, and 18O in the characterization precipitation, groundwater, surface lake water Plitvice Lakes (PL), Croatia, over 1979–2019 period is presented. An increase mean annual air temperature 0.06 °C/year precipitation amount 10 mm/year observed. good correlation tritium activity concentration PL Zagreb implies that data for are applicable study area. best local meteoric line at was obtained by reduced major axis regression (RMA) precipitation-weighted ordinary least...
Abstract The analyses of radioactive isotopes 14C, 137Cs and 210Pb, stable isotope 13C were performed in the sediment cores, top 40 cm, taken 2011 from karst lakes Prošće Kozjak Plitvice Lakes National Park, central Croatia. Frozen cores cut into 1 cm thick layers dried. 14C activity both carbonate organic fractions was measured using accelerator mass spectrometry technique with graphite synthesis. 137Cs, 214Pb 214Bi by low level gamma method on ORTECHPGe detector efficiency 32%....
Recent sediments in Lake Kozjak, the Plitvice Lakes National Park, Croatia, were used to study impact of material delivered lake sediment via Rječica Brook. Sediment cores, top 40 cm, taken near mouth Brook at three locations different distances from shore, water depth 2-9 m and analyzed using isotopic chemical methods. profiles following parameters obtained: organic carbonate fraction, C/N analyses 14C activity (a14C) d13C values (d13Ccarb) fraction (d13Corg) d15N total nitrogen. The...