Figure F1. Schematic of the ODP Pressure Core Sampler (PCS) highlighting the two pathways for sampling gas (adapted from Pettigrew, 1992). Top: release of gas from the port to the outer chamber. Bottom: release of gas from the port to the inner chamber.

Figure F1. Schematic of the ODP Pressure Core Sampler (PCS) highlighting the two pathways for sampling gas (adapted from Pettigrew, 1992). Top: release of gas from the port to the outer chamber. Bottom: release of gas from the port to the inner chamber.