strontium isotopes using

Forensic Identification of Human Skeletal Remains Using Isotopes…

Strontium Isotopes. Strontium isotope ratios in the local environment vary spatially due to variations in the local geology. One isotope of strontium— 87 Sr—is the product of radioactive decay of rubidium (87 Rb), and the abundance of 87 Sr in a material is thus dependent on the initial concentration of 87 Rb and the age

Equilibrium Fractionation of Stable Strontium Isotopes …

First published: 05 April 2024. https://doi/10.1029/2024GC011460. Sections. PDF. Tools. Share. Abstract. Understanding the stable strontium isotope fractionation …

Recovery of Cesium and Strontium from Nitric Acid HLW …

Abstract The processes of solvent extraction of cesium and strontium stable isotopes using solutions of macrocyclic polyethers in organic solvents from nitric acid solutions were studied. The influence of crown ether structure and solvent type on the distribution coefficients of cesium (DCs) and strontium (DSr) was investigated. …

USGS -- Isotope Tracers -- Resources

Periodic Table--Strontium. The alkali earth metal strontium has four stable, naturally occurring isotopes: 84 Sr (0.56%), 86 Sr (9.86%), 81 Sr (7.0%) and 88 Sr (82.58%). Only 87 Sr is radiogenic; it is produced by decay from the radioactive alkali metal 87 Rb, which has a half-life of 48,800,000 years. Thus, there are two sources of 87 Sr in any material: …

Strontium and Lead isotopes in forensic geography | Isobar Science

Strontium isotopes (87 Sr/ 86 Sr) provide a fingerprint of the source of food consumed during an individual's lifetime, as these isotopes are abundant in water and bedrock and are eventually integrated into soil and plants (Pye et al. 2004; Bartelink et al. 2019).Additionally, oxygen isotopes (𝛿 18 O) can be analysed to pinpoint water sources …

Recent developments and trends in the application of …

Strontium isotopes provide a biological signature for several applications. •. They can be used for finger the geographical origin of foodstuffs. •. Its presence …

Strontium isotopes delineate fine-scale natal origins and …

By tracing the migratory histories of individual Chinook salmon caught in fisheries using strontium isotopes, we determined the relative production of natal habitats at fine spatial scales and different life histories. Although strontium isotopes have been widely used in provenance research, we present a new robust framework to …

USGS -- Isotope Tracers -- Resources

The alkali earth metal strontium has four stable, naturally occurring isotopes: 84 Sr (0.56%), 86 Sr (9.86%), 81 Sr (7.0%) and 88 Sr (82.58%). Only 87 Sr is radiogenic; it is produced by decay from the radioactive alkali metal 87 Rb, which has a half-life of 48,800,000 years. Thus, there are two sources of 87 Sr in any material: that formed ...

Where did you grow up? How strontium in your teeth can …

We use strontium isotopes to help with resolving the issue of provenance: the place where people belong. The abundance of isotopes. The element strontium (chemical symbol, Sr) has an atomic number ...

Frontiers | Editorial: A Golden Age for Strontium Isotope …

1 EditorialBuilding from a session we chaired at the 2019 International Union for Quaternary Research Congress in Dublin, this research topic explores advances and new applications in strontium isotope research across palaeoecology, archaeology, and allied fields. These contributions encompass the range of current research, the latest …

Tracing Volcanic Eruptions using Strontium Isotopes

Tracing origins of volcanic activity using multiple isotopes. While strontium isotopes alone can be used to trace volcanic activity, the combination of multiple trace isotopes (e.g. Sr-Nd-Pb) can be analyzed to reconstruct lava origin and its tectonic setting. Rasoazanamparany et al. (2016) analyzed lava and tephra deposits from a volcanic ...

Facts About Strontium | Live Science

Just the facts. Atomic number (number of protons in the nucleus): 38. Atomic symbol (on the periodic table of the elements): Sr. Atomic weight (average mass of the atom): 87.62. Density: 2.64 ...

Using Strontium Isotopes to Determine the Age and Origin …

The variation of 87 Sr/ 86 Sr in seawater with time can be used to determine the age of calcium sulfate beds precipitated from brine derived from seawater. The determination of a marine origin can be established by the consistency of strontium isotope results from samples at different stratigraphic levels in a single gypsum/anhydrite bed collected at …

Strontium Isotopes

Of the four stable strontium isotopes found in nature, the isotope 88 Sr is the most common nuclide with a proportion of over 82%. Sr-87 enters nature as a stable decay product of the radioactive rubidium isotope Rb-87. Atomic Mass m a: Quantity: Half-life: Spin: Strontium Isotopic mixture: 87,62 u: 100 %: Isotope 84 Sr: 83,913419(8) u:

Use of strontium isotope ratios in potential geolocation of …

Stable isotope methods for provenance of unidentified human remains are relatively a newer field of enquiry in forensic archeology. It is of great interest for forensic experts these days. The application of strontium isotope analyses for estimating geolocation of archeological remains is of great interest in bioarcheology and modern …

Strontium and oxygen isotope evidence for the origin and …

Using strontium isotope analysis of cattle teeth, the research suggested that livestock found at the site were from diverse geographical origins. While some of the cattle were likely to be local, a proportion of the animals had 87 Sr/ 86 Sr values that were inconsistent with the Cretaceous chalk on which the site is located (Viner et al. 2010 ).

Using strontium isotopes to evaluate the spatial variation …

Strontium, a trace element with geochemical behavior similar to Ca, has a naturally radiogenic isotope, 87 Sr, produced by the decay of 87 Rb (half-life = 4.92 × 10 10 yrs). This results in variation in the 87 Sr/ 88 Sr ratio of Sr that depends on the geochemical and geologic histories of the source rock and its minerals.

Tracing Volcanic Eruptions using Strontium Isotopes

Imprints of volcanic eruptions within archaeological isoscapes. Strontium isotopes ( 87 Sr/ 86 Sr) are commonly used in archeological studies of trade and mobility by tracing …

Strontium Isotope

The earliest study to use isotopes as an indicator of atmospheric inputs to soils was by Dymond et al. (1974), who used strontium isotope measurements of micas …

Using strontium isotopes to evaluate the spatial variation of

The Sr isotopic and concentration data can be used as a basis for a mixing model between Rifle groundwater and vadose zone porewater to quantify the recharge of the aquifer from the vaodse zone and its spatial variation. Eqs. (1), (2) can be used to model the Sr concentrations and the 87 Sr/ 86 Sr of mixtures of various proportions of the …

The use of otolith strontium isotopes

The use of strontium isotope ratios (87 Sr/ 86 Sr) for salinity history reconstruction in estuaries could have broad application in the field of estuarine research. Many estuarine fish have been previously shown to utilize the freshwater-low salinity waters for spawning and larval rearing in other systems.

Diagenetic effects on strontium isotopes in shallow-water …

Seawater 87 Sr/ 86 Sr ratios have been used as a proxy for continental weathering flux and the partial pressure of atmospheric CO 2 (pCO 2) in Earth's past, but the fidelity of 87 Sr/ 86 Sr records in marine carbonates under diagenesis remains controversial. To investigate this issue, we undertook an integrated chemostratigraphic …

Strontium Isotopes

The use of strontium isotopes in these small catchment studies have helped to solve the puzzle of why stream waters draining silicate bedrock catchments often display Ca/Na and Ca/Sr ratios far in excess of what would be released by weathering of the abundant silicate minerals in the soil parent materials (Figure 7). Thus, as in the case of ...

Geochemical behavior of stable strontium isotopes during …

In this study, major developments and challenges in using stable Sr isotopes to trace continental weathering are reviewed, when considering high-precision …

PRECISE AND ACCURATE DETERMINATION OF …

PRECISE AND ACCURATE DETERMINATION OF STRONTIUM ISOTOPE COMPOSITIONS USING MC-ICPMS. V. K. Rai1, G. S. Franco1, R. Hines1, and M. Wadhwa1, 1School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85281, USA ([email protected]). Introduction: Strontium is an alkaline earth metal with an …

Strontium Isotopes Geochemistry Overview

The most abundant strontium isotope is 88Sr, making up approximately 83% of naturally occurring strontium; followed by 10% 86Sr, 7% 87Sr and <1% 84Sr. In geologic and environmental investigations, the ratio of …

Strontium isotopes as tracers of ecosystem processes: theory …

Strontium isotopes can be used to track the biogeochemical cycling of nutrient cations such as calcium. The extent of cation contributions from in situ …

Identifying migrants in Roman London using lead and strontium …

Using lead and strontium to track mobility in Roman Britain. The use of isotopes in archaeological studies is based on the premise that humans tend to incorporate isotopic compositions that correspond to those of locally sourced resources (Schwarcz et …

Reconstructing Pleistocene Australian herbivore megafauna diet using

Isotopes in fossil tooth enamel provide robust tools for reconstructing food webs, which have been understudied in Australian megafauna. To delineate the isotopic composition of primary consumers ...

CDC Radiation Emergencies | Radioisotope Brief: Strontium …

Sr-90 can be inhaled, but ingestion in food and water is the greatest health concern. Once in the body, Sr-90 acts like calcium and is readily incorporated into bones and teeth, where it can cause cancers of the bone, bone marrow, and soft tissues around the bone. Sr-90 decays to yttrium 90 (Y-90), which in turn decays by beta radiation so that ...