Mechanism and duration of banding in Mississippi Valley-type sphalerite

Sergei Katsev, Ivan L'Heureux, Anthony D. Fowler

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

We present a new quantitative model of mm-scale Fe-Zn banding in sphalerite Mississippi-Valley type ore deposits. The banded sphalerite is typically intergrown with dendritic galena in cm-scale clusters. We show that this pattern may arise due to a combined effect of geochemical reactions, crystal growth, dissolution, and ripening in far-from-equilibrium conditions. The simulated patterns are due to a self-propagating sequence of growth and dissolution events (so called coarsening wave). One of the surprising results is the geologically short time scale of the pattern formation.

Original languageEnglish (US)
Pages (from-to)4643-4646
Number of pages4
JournalGeophysical Research Letters
Volume28
Issue number24
DOIs
StatePublished - Dec 15 2001

Fingerprint Dive into the research topics of 'Mechanism and duration of banding in Mississippi Valley-type sphalerite'. Together they form a unique fingerprint.

Cite this