@Article{Lach_etal2015,
author="Lach, P.
and Cathelineau, M.
and Brouand, M.
and Fiet, N.",
title="In-situ Isotopic and Chemical Study of Pyrite from Chu-Sarysu (Kazakhstan) Roll-front Uranium Deposit",
journal="Procedia Earth and Planetary Science",
year="2015",
volume="13",
pages="207--210",
optkeywords="LA-ICP-MS",
optkeywords="pyrite",
optkeywords="roll-front",
optkeywords="SIMS",
optkeywords="sulfur isotopy",
optkeywords="traces elements",
optkeywords="uranium",
abstract="Pyrite is common in roll-front type uranium deposit in Chu-sarysu basin, Kazakhstan. Combined in-situ microstructural, isotopic and chemical analysis of pyrite indicates variation in precipitation conditions and in fluid composition. Broad-scale $\delta$34S heterogeneity indicates a complex multi-facet evolution. First generation authigenic frambo{\"i}dal aggregates are biogenic as demonstrated by the lowest $\delta$34S values of -48{\texttenthousand} to -28{\texttenthousand}. The latest generation pyrites are probably hydrothermal with greater $\delta$34S variation (-30{\texttenthousand} to +12{\texttenthousand}). This hydrothermal pyrite commonly displays variable enrichment of several trace elements especially As, Co and Ni. Strong variation in $\delta$34S values and variable trace element enrichment is interpreted in terms of continuous variations in fluid composition.",
optnote="exported from refbase (http://www.uhydro.de/base/show.php?record=182), last updated on Fri, 26 Jan 2024 13:19:04 +0100",
issn="1878-5220",
opturl="https://www.sciencedirect.com/science/article/pii/S1878522015001927"
}