Dear colleagues,
We invite you to submit an abstract to our session on 09f at the Goldschmidt 2016 meeting (June 26-July 1).
Metalliferous black shales: Resolving among various metal sources.
Conveners: Andrey Bekker, Clint Scott, Susanne Schmid
Key note: Aivo Lepland (Norway Geological Survey)
The abstract deadline is 26 February 2016.
http://goldschmidt.info/2016/program/programViewThemes
Session description:
Many black shales contain economic concentrations of base and platinum-group elements. However, the ultimate sources of these metals and the processes that led to their metal enrichment are poorly understood. Among the mechanisms proposed for metal enrichments are scavenging from seawater at depositional sites with extremely low sedimentation rates, derivation from fallen giant iron meteorites, delivery with hydrothermal fluids circulating through unconsolidated sediments and with petroleum fluids generated upon contact of igneous intrusions with organic matter-rich sediments. The geochemical and sedimentological criteria required to resolve among these sources are not well defined. We invite broadly-based contributions on sedimentology, geochemistry, tectonic setting, and basin analysis focused on the theme of metalliferous shales.
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