Blip Vent
Latitude: 18.813οN Longitude: 147.017οE Depth: 3085 m bsl
Blip is a serpentinite mud volcano located in the Mariana forearc (Curtis et al., 2013) about 56 km from the trench (IODP-MCME 366 Proposal). Although its activity is unknown, several measurements of the fluid chemistry have been done during IODP Expedition (IODP-MCME 366 Proposal). Two types of archaea have been discovered from this vent (Curtis et al., 2013).
Operations history for Blip vent: Not found
Table 1: Activity and rock types
| Activity and Host Rocks | References | |
| Activity | Not found | |
| Host Rocks | Serpentinite | Curtis et al., 2013 |
Table 2: Vent fluid characteristics
| Bottom seawater | Vent Fluids | References | |
| Distance from the trench (km) | 56 | IODP-MCME 366 Proposal | |
| pH | 8 | 10.7*(assumed) | IODP-MCME 366 Proposal |
| Composition | Ca rich with higher pH | IODP-MCME 366 Proposal | |
| Alkalinity (meq/kg) | 2.3 | 3 | IODP-MCME 366 Proposal |
| Clorinity (mmol/kg) | 542 | 448 | IODP-MCME 366 Proposal |
| Sulfate (mmol/kg) | 28 | 19.7 | IODP-MCME 366 Proposal |
| Mg (mmol/kg) | 52.4 | 0 | IODP-MCME 366 Proposal |
| Ca (mmol/kg) | 10.2 | 47.3 | IODP-MCME 366 Proposal |
| Na (mmol/kg) | 466 | 389 | IODP-MCME 366 Proposal |
| Na/Cl (molar) | 0.86 | 0.87 | IODP-MCME 366 Proposal |
| K (mmol/kg) | 10.1 | 5.9 | IODP-MCME 366 Proposal |
| Li (μmol/kg) | 26 | 6.3 | Hulme et al., 2010 |
| Rb (μmol/kg) | 1.37 | <1.23 | Hulme et al., 2010 |
| Cs (μmol/kg) | 0.0022 | >0.0061 | Hulme et al., 2010 |
| Sr (μmol/kg) | 90 | 843 | Hulme et al., 2010 |
| Ba (μmol/kg) | 0.14 | >0.277 | Hulme et al., 2010 |
* IODP-MCME 366- International Ocean Discovery Program-Mariana Convergent Margin Expedition 366.
Table 3: Vent Biology
| General name | Phylum | References |
| Archaea | Crenarchaeota | Curtis et al., 2013 |
| Archaea | Euryarchaeota | Curtis et al., 2013 |
Images: None known
Video Links: None known
References:
- Curtis, A. C., Wheat, C. G., Fryer, P., Moyer, C. L., 2013. Mariana Forearc Serpentinite Mud Volcanoes Harbor Novel Communities of Extremophilic Archaea. Geomicrobiology Journal 30 (5), 430-441.
- Hulme, S. M., Wheat, C. G., Fryer, P., Mottl, M. J., 2010. Pore water chemistry of the Mariana serpentinite mud volcanoes: A window to the seismogenic zone. Geochemistry Geophysics Geosystems 11 (1), Q01X09, doi: 10.1029/2009GC002674.
Cruise Reports:
- IODP Mariana Convergent Margin Expedition 366, unpublished IODP proposal http://iodp.tamu.edu/scienceops/precruise/mariana/505-Full5.pdf (accessed 01/19/2016).