Methane at the NW of Weddell Sea, Antarctica

Figure 3

Percentage of methane (CH₄) related to total hydrocarbons content (% HD = C1 100/C1 + C2 + C3 + C4 + C5) detected in all analyzed samples along Bouchard zone (Figure 1). C1: methane, C2: ethane, C3: propane, C4: butane, n-C4: n-butane, C5: pentane, and n-C5: n-pentane.