Figure 5. Concentrations of CaCO3, organic carbon, dissolved interstitial sulfate, and headspace-analyzed interstitial methane in Pliocene-Pleistocene sediments from Site 899 on the Iberia Abyssal Plain. The base of turbiditic Unit I is 132 mbsf at this site.

Figure 5. Concentrations of CaCO₃, organic carbon, dissolved interstitial sulfate, and headspace-analyzed interstitial methane in Pliocene-Pleistocene sediments from Site 899 on the Iberia Abyssal Plain. The base of turbiditic Unit I is 132 mbsf at this site.