Nip Vent
Latitude: 18.753οN Longitude: 147.133οE Depth: 2950 m bsl
Nip is a mud volcano located in the Mariana forearc region (International Ocean Discovery Program – Mariana Convergent Margin Expedition 366- IODP-MCME 366). Although the activity of this mud volcano is unknown, several measurements of the fluid chemistry were carried out in recent past (IODP-MCME 366 Proposal; Hulme et al., 2010).
Operations history for Nip vent: Not found
Table 1: Vent activity and host rocks
| Activity and host rocks | References | |
| Volcanic Activity | Not found | |
| Volcanic Rocks | Serpentinite mud volcano | Fryer, 2012 |
Table 2: Vent fluid characteristics
| Properties | Bottom seawater | Vent Fluids | References |
| Distance from the trench (km) | 50 | IODP-MCME 366 Proposal | |
| pH | 8 | 10.7 | IODP-MCME 366 Proposal |
| Alkalinity (meq/kg) | 2.3 | 3.1 | IODP-MCME 366 Proposal |
| Clorinity (mmol/kg) | 542 | 501 | IODP-MCME 366 Proposal |
| Sulfate (mmol/kg) | 28 | 7 | IODP-MCME 366 Proposal |
| Mg (mmol/kg) | 52.4 | 0.2 | IODP-MCME 366 Proposal |
| Ca (mmol/kg) | 10.2 | 75 | IODP-MCME 366 Proposal |
| Na (mmol/kg) | 466 | 363 | IODP-MCME 366 Proposal |
| Na/Cl (molar) | 0.86 | 0.725 | IODP-MCME 366 Proposal |
| K (mmol/kg) | 10.1 | 3.8 | IODP-MCME 366 Proposal |
| Li (μmol/kg) | 26 | 16 | IODP-MCME 366 Proposal |
| Rb (μmol/kg) | 1.37 | 1.82 | Hulme et al., 2010 |
| Cs (μmol/kg) | 0.0022 | 0.0692 | Hulme et al., 2010 |
| Sr (μmol/kg) | 90 | 920 | IODP-MCME 366 Proposal |
| Ba (μmol/kg) | 0.14 | 1.025 | Hulme et al., 2010 |
| B (μmol/kg) | 410 | 36 | Hulme et al., 2010 |
| Si (μmol/kg) | 190 | 1120 | Hulme et al., 2010 |
* IODP-MCME 366- International Ocean Discovery Program-Mariana Convergent Margin Expedition 366.
Vent Biology: None known
Images: None known
Video Links: None known
References:
- Hulme, S. M., Wheat, C. G., Fryer, P., and Mottl, M. J., 2010. Pore water chemistry of the Mariana serpentinite mud volcanoes: A window to the seismogenic zone. Geochemistry, Geophysics, Geosystems 11, doi:10.1029/2009GC002674.
- Fryer, P., 2012. Serpentinite mud volcanism: observations, processes, and implications. Annual Review of Marine Science 4, 345-373.
Website References:
- IODP Mariana Convergent Margin Expedition 366 unpublished IODP proposal http://iodp.tamu.edu/scienceops/precruise/mariana/505-Full5.pdf (accessed 01/19/2016).