Results 21 to 30 of about 547,241 (288)
Ecosphere, 2022 Recent studies showed the potential of stable isotopes of the macronutrient calcium (δ44/40Ca) and nonessential strontium (δ88/86Sr) as new trophic level indicators in terrestrial vertebrates and marine teleost fishes.
Kai Nils Nitzsche +6 more
doaj +1 more source
Journal of Analytical Science and Technology, 2021 Background One of the most critical issues concerning in situ mass spectrometry lies in accounting for elements and molecules that overlap target isotopes of analytical interest in a sample. This study traced the instrumental mass fractionation of Rb and
Sung-Gyun Yim +4 more
doaj +1 more source
Study on the Factors Influencing the Separation of Sr and Nd in Sediments by Ion Exchange Resin
Yankuang ceshi, 2018 BACKGROUND In geological studies, Sr and Nd isotopes are classical isotopic dating and tracer systems. OBJECTIVES The traditional separation method usually uses the AG50W-X8 resin to elute and separate Sr and REEs in sediments, and then uses Sr-special ...
YIN Peng +3 more
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Resolving archaeological populations with Sr-isotope mixing models [PDF]
Applied Geochemistry, 2007 Strontium isotope analysis of tooth enamel is a useful provenancing technique to investigate the childhood origins and residential mobility of ancient people. However, where different geographical target regions have similar biosphere 87Sr/86Sr it is often difficult to resolve the 87Sr/86Sr ranges of two different groups of people and establish what ...
Montgomery, J. +2 more
openaire +3 more sources
Identifying the origins of local atmospheric deposition in the steel industry basin of Luxembourg using the chemical and isotopic composition of the lichen Xanthoria parietina [PDF]
, 2008 Trace metal atmospheric contamination was assessed in one of the oldest European industrial sites of steel production situated in the southern part of the Grand-Duchy of Luxembourg.
Perrone, T. +13 more
core +1 more source
Strontium as a tracer of weathering processes in a silicate catchment polluted by acid atmospheric inputs, Strengbach, France [PDF]
, 2000 This paper determines the weathering and atmospheric contributions of Ca in surface water from a small spruce forested silicate catchment (N–E France) receiving acid atmospheric inputs.
Aubert, Dominique +9 more
core +1 more source
EQA, 2009 O, H, B and Sr isotopes were identified from surface-waters, ground-waters and waters percolating in soils at the Pialassa Baiona lagoon and nearby inland areas.
Riccardo Petrini +5 more
doaj +1 more source
Short-term coral bleaching is not recorded by skeletal boron isotopes. [PDF]
PLoS ONE, 2014 Coral skeletal boron isotopes have been established as a proxy for seawater pH, yet it remains unclear if and how this proxy is affected by seawater temperature. Specifically, it has never been directly tested whether coral bleaching caused by high water
Verena Schoepf +6 more
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Frontiers in Marine Science, 2023 Seawater temperature is an essential quantity for paleoclimatological and paleoecological studies. A potential archive that can provide century-long, temporally well-constrained and high-resolution temperature proxy data is available in the form of ...
Cornélia Brosset +6 more
doaj +1 more source
High Precision Strontium Isotope Measurement of Rock Standard Materials by Multi-dynamic TIMS
Yankuang ceshi, 2023 BACKGROUNDStrontium isotopes are a powerful geochemical indicator for tracing the sources and ages of ore-forming materials. TIMS is internationally recognized as the “gold standard” for determining Sr isotopic compositions, however, its analysis ...
Yuqiu WEI +4 more
doaj +1 more source