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Identify Metamorphic and Primary Multiple Sulfur Isotopic Signatures in the 2.7 Ga Pyrite Nodules from the Southwestern Superior Province (Minnesota, USA)
DownloadSpring 2016
Sulfur isotopes of some Archean rocks show unique mass independent fractionation (S-MIF) signatures, which are generally considered to have been produced by UV radiolysis on volcanic SO2 in the oxygen-free Archean atmosphere. Based on the distinct S-MIF signals of different sulfur sources (i.e.,...
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2014-05-19
This report describes the methods and samples utilized (to 2014) within the Canadian Centre for Isotopic Microanalysis (CCIM), University of Alberta, for routine analysis of δ13CVPDB, δ15NAIR, and N abundances of diamonds by secondary ion mass spectrometry (Cameca IMS 1280). Analyses by...
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Spring 2020
Gahcho Kué is a diamond mine in the Northwest Territories of Canada that opened in 2016. This is the first study into the morphology, N systematics, and stable isotope (C and N) composition of the Gahcho Kué diamonds, and the mineral chemistry of the associated inclusions. The resulting data are...