Results 21 to 30 of about 40,961 (371)

Metals and metal isotopes incorporation in insect wings: Implications for geolocation and pollution exposure

open access: yesFrontiers in Ecology and Evolution, 2023
Anthropogenic activities are exposing insects to elevated levels of toxic metals and are altering the bioavailability of essential metals. Metals and metal isotopes have also become promising tools for the geolocation of migratory insects.
Megan S. Reich   +10 more
doaj   +1 more source

Triple sulfur-oxygen-strontium isotopes probabilistic geographic assignment of archaeological remains using a novel sulfur isoscape of western Europe

open access: yesPLoS ONE, 2021
Sulfur isotope composition of organic tissues is a commonly used tool for gathering information about provenance and diet in archaeology and paleoecology.
C. Bataille   +6 more
semanticscholar   +1 more source

The Provenance of Ancient Cotton and Wool Textiles from Nubia: Insights from Technical Textile Analysis and Strontium Isotopes

open access: yesJournal of African Archaeology, 2022
Late antique and medieval cotton and wool textiles found in the middle Nile Valley (Nubia, northern Sudan) were analysed for their technical characteristics and strontium (Sr) isotope composition.
M. Wozniak, Z. Belka
semanticscholar   +1 more source

Identifying nesting grounds for juvenile migratory birds with dual isotope: an initial test using North American raptors

open access: yesEcosphere, 2021
Understanding seasonal mobility, population connectivity, and site fidelity is critical for managing and preserving migratory species. We investigated the potential of coupling strontium (87Sr/86Sr) and hydrogen (δ2H) isotopes in feathers for ...
Brooke E. Crowley   +3 more
doaj   +1 more source

Isotopic Composition of Strontium in Carbonatites [PDF]

open access: yesNature, 1964
IN view of Dr. Bailey's remarks it must be admitted that my phrase “carbonatites show little evidence of assimilation on this scale” was rather ill-chosen. Near the margins of carbonatite plugs inclusions of gneiss transformed into feldspathic or phlogopite rocks are common, and local enrichment of the carbonatite in ferromagnesian silicates is very ...
  +4 more sources

Chemostratigraphy of Neoproterozoic carbonates: implications for 'blind dating' [PDF]

open access: yes, 2001
The delta C-13(carb) and Sr-87/Sr-86 secular variations in Neoproteozoic seawater have been used for the purpose of 'isotope stratigraphy' but there are a number of problems that can preclude its routine use.
Aharon P.   +55 more
core   +1 more source

Evidence of hydrological control of Sr behavior in stream water (Strengbach catchment, Vosges mountains, France) [PDF]

open access: yes, 2002
Strontium and particularly 87Sr/86Sr ratios in stream water have often been used to calculate weathering rates in catchments. Nevertheless, in the literature, discharge variation effects on the geochemical behavior of Sr are often omitted or considered ...
Amiotte-Suchet   +48 more
core   +2 more sources

Application of Eichrom Sr Resin to the Separation and Enrichment of Lead and Strontium in Uranium Ore Concentrates

open access: yesYankuang ceshi, 2019
BACKGROUND The traceability study of uranium ore concentrates plays an important role in nuclear forensics. By measuring the abundance ratios of lead and stontium isotopes, the results can provide some geographical indication information for traceability.
XU Zhuo   +5 more
doaj   +1 more source

A score of bioavailable strontium isotope archaeology in China: Retrospective and prospective

open access: yesFrontiers in Earth Science, 2023
Bioavailable strontium isotope analysis was proposed for prehistoric human ecology almost 40 years ago and rapidly became one of the most important tools to trace past migratory behaviours.
Zihua Tang, Zihua Tang, Xueye Wang
doaj   +1 more source

Strontium Isotope Characteristics (δ88/86Sr, 87Sr/86Sr) of Arima‐Type Brines Originated From Slab‐Fluids

open access: yesGeophysical Research Letters, 2023
In the southwest Japan forearc, slab‐fluids produced from subducted materials migrate to crustal levels and appear as deep‐seated brine. We have analyzed for the first‐time stable strontium isotopes in non‐volcanic spring water with high salinity ...
T. Kani   +6 more
doaj   +1 more source

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