Isotopic analyses strontium isotopes

Strontium isotope analyses. Strontium isotope data obtained using residual salt analysis (SrRSA) are the Sr/ Sr isotope ratios of residual salts extracted from reservoir cores (see Mearns McBride 1999 for a description of the methodology). The Sr/ Sr isotope ratios of formation waters are modified by diagenesis (water-rock interactions) and/or hydrodynamic processes through time. Once established, differences in the strontium isotope ratio will tend to... 

Gale, N. (1981), Mediterranean obsidian source characterization by strontium isotope analysis, Archaeometry 23, 41-51. 

Bentley, R.A., Price, T.D., Liming, J., Gronenborn, D., Wahl, J. and Fullager, P.D. (2002). Prehistoric migration in Europe strontium isotope analysis of early Neolithic skeletons. Current Anthropology 43 799-804. 

Evans, J.A., Chenery, C.A. and Fitzpatrick, A.P. (2006). Bronze Age childhood migration of individuals near Stonhenge, revealed by strontium and oxygen isotope tooth enamel analysis. Archaeometry 48 309-321. 

Price, T.D., Grupe, G. and Schroter, P. (1994). Reconstruction of migration patterns in the Bell Beaker period by stable strontium isotope analysis. Applied Geochemistry 9 413-417. 

Strontium isotope analysis Requires a very small sample Gale (1981)... 

Resonance-ionization mass-spectrometry is still in the development stage in terms of its application to cosmochemistry. The Charisma instrument, which is operated by Argonne National Laboratories, uses multiple lasers to resonantly ionize only the elements of interest, which are then analyzed with a time-of-flight mass spectrometer. The Charisma instrument has made isotopic measurements of molybdenum, zirconium, strontium, ruthenium, barium and other elements in presolar grains. These measurements are made possible by the high ionization efficiency of the RIMS technique and its ability to completely eliminate isobaric interferences. Work is now underway to build a RIMS instrument that can be operated by an individual investigator in a university laboratory. If this succeeds, RIMS will play an increasing role in analysis of extraterrestrial materials. 

Using Archaeological Chemistry to Investigate the Geographic Origins of Trophy Heads in the Central Andes Strontium Isotope Analysis at the Wari Site... 

In the twenty years since it was first proposed (24, 2S), strontium isotope analysis of archaeological human remains to examine residential mobility has become increasingly common. Briefly, 87Sr/86Sr in a given geologic zone is... 

Strontium Isotope Analysis of Archaeological Enamel and Bone... 

All tooth and bone samples were initially prepared in the Laboratory for Archaeological Chemistry by the first author. Modem faunal samples for strontium isotope analysis were placed in a crucible and ashed at approximately 800°C for 10 hours. The bone samples were then crushed in an agate mortar and pestle. The teeth were removed from modem fauna mandibles after ashing and crushed and stored separately from the bone. 

Strontium Isotope Analysis of Modern Fauna from the Andes... 

Despite the potential to track the spatial movement of marine shell beads, archaeometric attempts at sourcing have been minimal. We are aware of only three other groups that have taken this approach including a neutron activation analysis (NAA) of Busycon sp. shells and artifacts in the American Southeast (/), the use of strontium isotopes as a measure of geologic age of fossil shells in Southwest Europe (2), and the use of oxygen isotope ratios to source Sporufylus sp. beads in Central Europe (5). 

We tested this data acquisition method by first ablating bracketing concentration standard glasses that had been determined from previous measurements. All the samples in this analysis had total strontium elemental concentrations between 95 and 350 parts per million strontium. We then collected 150-300 one second ion count packets for MSr, Sr, 87 Sr and 88Sr, plus the instantaneous ratio of each isotope to Sr (Figure 3). 

Bone and enamel, archaeological, strontium isotope analysis, 102-104 Bone chemistry, principles, 116-117 Bone materials in archaeological soils and sediments, 198, 200-204 Botswana prehistoric mines, specular hermatite source fingerprinting, 460-479... 

Diagenesis in strontium isotope analysis, 101-102 Didrachms. See Tyrian shekels and half-shekels... 

Enamel and bone, strontium isotope analysis, 102-104 Energy dispersive spectrometry (EDS), scanning electron microscopy, Seip textiles, 35 Energy dispersive X-ray fluorescence (EDXRF), elemental analyses copper-based coins, 231-245 copper coins, Herodian prutah, 246-257... 

Human dental enamel, strontium isotope analysis by LA-TOF-ICP-MS, 306-308... 

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