The essential role of the fine mineral fraction in V hyper-enrichment in black shales has
been suggested in previous studies; however,'the operational details' of such metallogenic …

The extent to which Paleozoic oceans differed from Neoproterozoic oceans and the causal
relationship between biological evolution and changing environmental conditions are …

We provide a compilation of geology of uranium and thorium potential resources in the
Ordovician black shale (graptolite argillite), Cambrian–Ordovician shelly phosphorite and in …

Abstract The Alum Shale Formation, a widespread metal-rich black shale in Baltoscandia,
was deposited during the Cambrian–Ordovician transition. Given that it straddles a period of …

Lower Paleozoic black shales from Estonia, Sweden, and Russia were analyzed for major
and trace elements to reconstruct the provenance, tectonic setting, and paleoweathering …

Abstract The Tremadocian (Early Ordovician) is currently considered a time span of
greenhouse conditions with tropical water surface temperature estimates, interpolated from …

The occurrence of Cambrian to Ordovician organic-rich black shale deposits has been
known in Baltoscandia, including Estonia, for a long time. The Estonian graptolite argillite …

This article presents a centimetre-to micrometre-scale study of sedimentary fabrics from
Lower Ordovician metalliferous black shale from the Baltic palaeobasin. Two sections of the …

The geochemical evolution of groundwater in the Ordovician-Cambrian aquifer system in the
northern part of the Baltic Artesian Basin (BAB) illustrates how continental glaciations have …

A large global database for over 9000 Archean to Holocene pelites in numerous basins has
been developed to evaluate diagenetically unaltered and altered compositions. The …