The geochemical relationship of Mn to organic carbon, iron and alumina was studied in Early Maastrichtian oil shales of southern Israel. The Mn concentration appears to mirror the intensity of anoxia in the bottom waters of the depositional basin. It is proposed that the general trend of increasing Mn stratigraphically upward through the organic-rich sequence is a reflection of fluctuating redox conditions during the transition from an anoxic to a more oxidizing regime.
|Number of pages||14|
|State||Published - 1997|