Results 31 to 40 of about 177,874 (317)

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 ...
Aubert, Dominique   +3 more
core   +1 more source

Machine-learning-based automated loading of strontium isotopes into magneto-optical trap

open access: yesAIP Advances, 2023
We implemented optimization techniques of machine learning (ML) to obtain the mutually exclusive sets of experimental parameters that maximize the number of strontium atoms of different isotopes (88Sr, 86Sr, and 87Sr) in a magneto-optical trap (MOT ...
Korak Biswas   +4 more
doaj   +1 more source

Neodymium isotopes in modern human dental enamel: An exploratory dataset for human provenancing

open access: yesData in Brief, 2021
This collection presents data on neodymium isotopes from modern dental elements (third molars) of 47 individuals born and raised in the Netherlands, Grenada, Curaçao, Bonaire, Columbia and Iceland.
Esther Plomp
doaj   +1 more source

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.
Gorokhov, I.M.   +8 more
core   +1 more source

The influence of water–rock interactions on household well water in an area of high prevalence chronic kidney disease of unknown aetiology (CKDu)

open access: yesnpj Clean Water, 2021
Poor drinking water quality in household wells is hypothesised as being a potential contributor to the high prevalence of chronic kidney disease of uncertain aetiology (CKDu) among the farming communities of the Medawachchiya area, Anuradhapura, Sri ...
Liza K. McDonough   +3 more
doaj   +1 more source

Seaweed against strontium and preussian blue against cesium

open access: yesRangifer, 1988
The fact that alginates bind strontium and cyanates bind cesium and are capable of removing these elements from living organisms is scientifically verified. Zeolites offer another possibility for exchange of these ions.
G Michanek
doaj   +1 more source

Silver Linings at the Dawn of a “Golden Age”

open access: yesFrontiers in Ecology and Evolution, 2021
Nearly four decades after the first applications of strontium isotope analyses in archaeology and paleoecology research, it could be said that we are entering a “Golden Age”.
Kate Britton   +8 more
doaj   +1 more source

Strontium isotopes as an indicator of human migration – easy questions, difficult answers

open access: yesAnthropological Review, 2015
Isotope analyses of bones and teeth allow us to study phenomena which occurred in the history of human species and which are difficult to capture by traditional anthropological methods. Measuring oxygen, nitrogen and carbon isotope levels in the skeleton
Szostek Krzysztof   +2 more
doaj   +1 more source

The Precambrian marine carbonate isotope database: version 1.1. [PDF]

open access: yes, 2002
We present a compilation of strontium, carbon, and oxygen isotope compositions of roughly 10,000 marine carbonate rocks of Archean - Ordovician age (3800 Ma – 450 Ma).
Shields, GA   +5 more
core   +1 more source

Strontium isotope compositions of river waters as records of lithology-dependent mass transfers : the Garonne river and its tributaries (SW France) [PDF]

open access: yes, 2000
The relation of lithology in the drainage basin to the dissolved load of the Garonne river and its main tributaries, in southwestern France, was evaluated by determining 87Sr/86Sr ratios, and concentrations of major and trace elements during a 2-year ...
Probst, Jean-Luc   +5 more
core   +1 more source

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