Micro-analytical Technologies for Mineral Mapping and Trace Element Deportment

Berry, Ron F.; Danyushevsky, Leonid V.; Goemann, Karsten; Parbhakar-Fox, Anita; Rodemann, Thomas

doi:10.1007/978-3-319-42731-7_4

Cited by 1 publication

(1 citation statement)

References 27 publications

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“…Pyrite trace element has been linked to increased weathering rates, whether through the presence of inclusions that destabilise the crystal lattice [7,14,15] or the presence of arsenic in solid solution [2,[15][16][17]. In the last two decades, in situ trace element analysis has been developed to analyse and quantify the trace element content of pyrite is a potential core component of assessing the metal(loid) (this term is used to group transition metals and semi-metals of groups III, IV and V that show metallic properties) leaching risk of potential mine waste [9][10][11][12]15,18] and has been used to assess metal concentrations in mine waste at the Baal Gammon mine [19] and Tools [20], both in Australia. One such approach is Laser Ablation Inductively Coupled Mass Spectrometry (LA-ICP-MS) that allows analysis of trace elements within mineral grains as small as 10 µm or less [10,15].…”

Section: Introductionmentioning

confidence: 99%

Geometallurgy of Trace Elements in the Hrazdan Iron Deposit

Bowell¹,

Brough

Barnes

et al. 2021

Minerals

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This study presents an evaluation of arsenic and other trace metals in the Hrazdan Iron-Ore project in Armenia using a methodology typically associated with Geometallurgical characterization. The principal host of the trace elements is pyrite and oxidized equivalents. Pyrite is a mineral of elemental concern as it has the potential to generate acidic pH in water that it contacts and thus mobilize metals of concern. In the Hrazdan deposit, there is a general excess of neutralizing carbonate minerals that result in adequate buffering of generated acid and limiting the mobility of metal cations in solution. However, metalloids that form oxyanions species such as those of arsenic or chromium tend to be more mobile in neutral to alkaline mine drainage. From the geometallurgical assessment of the mine waste, the results of the geochemical testwork can be explained and the information used to assess potential issues with mine waste storage, timing of metal release and provide a baseline for mitigation strategies.

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