Preliminary Data

Elemental analysis was done on a Costech Elemental Combustion System 4010 at the University of Massachusetts.  In the EA, the samples are combusted to release CO₂, N₂, and SO₄ gases, which then go through a reduction column, water trap, and finally a GC column to separate out the gases.  The timing and abundances of the peaks are compared to known standards. 

Figure 1 - Total Carbon and Nitrogen with depth

Figure 2 - Total vs. Organic Carbon with depth

Figure 3 - Total Sulfur with depth