Volatile chemistry for the hydrothermal edifices Sully (blue dots) and Hulk (red dots) located in Main Endeavour Field. As illustrated, the hydrothermal systems in the Bastille complex, where Sully is located, and the northern complex, which hosts Hulk, have continued to have distinct chemical-thermal properties both prior to and following the 1999–2000 events. The implication from these results is that the Bastille complex is fed by a different upflow limb of a convection cell than the northern complex (as illustrated in Figure 2). The appearance of isotopically heavy and radiocarbon dead CO2 (δ13CCO2) following the 1999 seismic event showed that the earthquake event likely represented injection of melt during a diking event (Proskurowski et al., 2004). Also shown is the evolution of macrofaunal communities on Sully, which has dramatically dropped in temperature since 2000 when it was venting 380°C fluids. Green stars indicate years of seismic swarm events.
Species (common):
Year: 2012
Details:
Media Type: Graph
Data Type: Chemistry
Device Type:
Feature: JdF:Endeavour:MEF
Investigator: Deborah Kelley
Expedition:
Chief Scientist:
Species: