At Site 1134, in addition to routine monitoring of hydrocarbon gases for safety, inorganic carbon analyses were performed. The analytical procedures are described in "Organic Geochemistry" in the "Explanatory Notes" chapter.
Concentrations of volatile hydrocarbons were routinely determined in every core from Hole 1134A using standard ODP headspace sampling procedures. Only low concentrations of methane were detected; the maximum concentration was 8 ppm, with most samples having <5 ppm (Table T5). No heavier hydrocarbon gases (C2+) were detected.
Calcium carbonate content in Hole 1134A ranges from 57.6 to 93.6 wt%, and most samples have 80 to 92 wt% (Table T6; Fig. F11).
Methane concentrations in the headspace samples in Hole 1134A were only slightly above background. No samples were analyzed for total carbon, sulfur, or nitrogen.