THE EARLY TOARCIAN (JURASSIC) ANOXIC EVENT - STRATIGRAPHIC, SEDIMENTARY, AND GEOCHEMICAL EVIDENCE

Detailed paleogeographic studies in the Southern Alps suggest that an oxygen-minimum model is appropriate for interpreting conditions on Tethyan continental margins. Advection of manganese in this low-oxygen layer may explain the local occurrence of carbonate ores of this element. Carbon-sulfur and...