Marine incursions

C1. Marine incursions either by transgression (e.g. the initial Dead Sea Klein-Ben David et al., 2004) or by seepage (e.g. Lake Asal, Djibouti Stieljes, 1973)... 

During the time of the two recorded marine incursion into Wright Valley, a deep fjord existed in Taylor Valley from before the late Miocene to the middle Pliocene (3.4 Ma) (Ishman and Rieck 1992). Since Taylor Valley is part of the same structural block, the marine incursion into Wright Valley may also have been continuous from middle-to-late Miocene to early-to-middle Pliocene. 

Some coals may show a general increase of total sulfur with both marine incursion and organic matter. Partitioning of this sulfur varies with organic content. In clay domains most of the sulfur is pyritic while in organic-rich samples organic sulfur is generally dominant, or present in concentrations approximately equal to pyritic sulfur (Bailey et al., 1990). 

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