Figure F74. Results of headspace gas analyses for methane depth distribution at Sites 1253 (solid circles) and 1039 (open circles). Subunit 4A = gabbro sill, Subunit 4B = lower igneous section. Gray shaded areas = recovered igneous rock.

Figure F74. Results of headspace gas analyses for methane depth distribution at Sites 1253 (solid circles) and 1039 (open circles). Subunit 4A = gabbro sill, Subunit 4B = lower igneous section. Gray shaded areas = recovered igneous rock.