Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Loher, Markus; Pape, Thomas; Marcon, Yann; Römer, Miriam; Wintersteller, Paul; Praeg, Daniel; Torres, Marta E; Sahling, Heiko; Bohrmann, Gerhard (2017): Temperature, chloride and sulfate measurements of samples from RV METEOR cruise M112. PANGAEA, https://doi.org/10.1594/PANGAEA.883466, Supplement to: Loher, M et al. (2018): Mud extrusion and ring-fault gas seepage – upward branching fluid discharge at a deep-sea mud volcano. Scientific Reports, 8, 6275, https://doi.org/10.1038/s41598-018-24689-1

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
Submarine mud volcanoes release sediments and gas-rich fluids at the seafloor via deeply-rooted plumbing systems that remain poorly understood. Here the functioning of Venere mud volcano, on the Calabrian accretionary prism in ~1,600 m water depth is investigated, based on multi-parameter hydroacoustic and visual seafloor data obtained using ship-borne methods, ROVs, and AUVs. Two seepage domains are recognized: mud breccia extrusion from a summit, and hydrocarbon venting from peripheral sites, hosting chemosynthetic ecosystems and authigenic carbonates indicative of long-term seepage. Pore fluids in freshly extruded mud breccia (up to 13 °C warmer than background sediments) contained methane concentrations exceeding saturation by 2.7 times and chloride concentrations up to five times lower than ambient seawater. Gas analyses indicate an underlying thermogenic hydrocarbon source with potential admixture of microbial methane during migration along ring faults to the peripheral sites. The gas and pore water analyses point to fluids sourced deep (>3 km) below Venere mud volcano. An upward-branching plumbing system is proposed to account for co-existing mud breccia extrusion and gas seepage via multiple surface vents that influence the distribution of seafloor ecosystems. This model of mud volcanism implies that methane-rich fluids may be released during prolonged phases of moderate activity.
Coverage:
Median Latitude: 38.607437 * Median Longitude: 17.192567 * South-bound Latitude: 38.590483 * West-bound Longitude: 17.187017 * North-bound Latitude: 38.618367 * East-bound Longitude: 17.209400
Date/Time Start: 2014-11-09T22:13:00 * Date/Time End: 2014-12-09T12:58:00
Comment:
Temperature data from temperature stick (T-Stick) handled by remotely operated vehicle (ROV) MARUM QUEST 4000 during RV METEOR cruise M112.
Temperature data from miniaturized temperature loggers (MTLs) mounted on a gravity corer (GC) obtained during RV METEOR cruise M112.
Chloride and sulfate pore water data obtained from push cores handled by ROV MARUM QUEST 4000 and gravity cores during RV METEOR cruise M112.
Size:
26 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text — use the following character encoding:

Datasets listed in this publication series

  1. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements at T-Stick ROV station GeoB19202-2. https://doi.org/10.1594/PANGAEA.883454
  2. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements at T-Stick ROV station GeoB19221-3. https://doi.org/10.1594/PANGAEA.883455
  3. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements at T-Stick ROV station GeoB19221-5. https://doi.org/10.1594/PANGAEA.883456
  4. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements at T-Stick ROV station GeoB19230-3. https://doi.org/10.1594/PANGAEA.883458
  5. Loher, M; Pape, T; Marcon, Y et al. (2017): Chloride and sulfate pore water analysis of sediment core GeoB19230-5. https://doi.org/10.1594/PANGAEA.883397
  6. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements at T-Stick ROV station GeoB19230-10. https://doi.org/10.1594/PANGAEA.883457
  7. Loher, M; Pape, T; Marcon, Y et al. (2017): Chloride and sulfate pore water analysis of sediment core GeoB19236-1. https://doi.org/10.1594/PANGAEA.883398
  8. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements at T-Stick ROV station GeoB19240-4. https://doi.org/10.1594/PANGAEA.883459
  9. Loher, M; Pape, T; Marcon, Y et al. (2017): Chloride and sulfate pore water analysis of sediment core GeoB19240-10. https://doi.org/10.1594/PANGAEA.883399
  10. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements at T-Stick ROV station GeoB19242-4. https://doi.org/10.1594/PANGAEA.883462
  11. Loher, M; Pape, T; Marcon, Y et al. (2017): Chloride and sulfate pore water analysis of sediment core GeoB19242-6. https://doi.org/10.1594/PANGAEA.883404
  12. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements at T-Stick ROV station GeoB19242-7. https://doi.org/10.1594/PANGAEA.883463
  13. Loher, M; Pape, T; Marcon, Y et al. (2017): Chloride and sulfate pore water analysis of sediment core GeoB19242-10. https://doi.org/10.1594/PANGAEA.883400
  14. Loher, M; Pape, T; Marcon, Y et al. (2017): Chloride and sulfate pore water analysis of sediment core GeoB19242-11. https://doi.org/10.1594/PANGAEA.883401
  15. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements at T-Stick ROV station GeoB19242-13. https://doi.org/10.1594/PANGAEA.883460
  16. Loher, M; Pape, T; Marcon, Y et al. (2017): Chloride and sulfate pore water analysis of sediment core GeoB19242-14. https://doi.org/10.1594/PANGAEA.883402
  17. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements at T-Stick ROV station GeoB19242-16. https://doi.org/10.1594/PANGAEA.883461
  18. Loher, M; Pape, T; Marcon, Y et al. (2017): Chloride and sulfate pore water analysis of sediment core GeoB19242-17. https://doi.org/10.1594/PANGAEA.883403
  19. Loher, M; Pape, T; Marcon, Y et al. (2017): Chloride and sulfate pore water analysis of sediment core GeoB19245-1. https://doi.org/10.1594/PANGAEA.883405
  20. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements of sediment core GeoB19248-2. https://doi.org/10.1594/PANGAEA.883414
  21. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements of sediment core GeoB19248-3. https://doi.org/10.1594/PANGAEA.883415
  22. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements of sediment core GeoB19248-4. https://doi.org/10.1594/PANGAEA.883416
  23. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements at T-Stick ROV station GeoB19249-3. https://doi.org/10.1594/PANGAEA.883464
  24. Loher, M; Pape, T; Marcon, Y et al. (2017): Chloride and sulfate pore water analysis of sediment core GeoB19249-7. https://doi.org/10.1594/PANGAEA.883406
  25. Loher, M; Pape, T; Marcon, Y et al. (2017): Chloride and sulfate pore water analysis of sediment core GeoB19267-4. https://doi.org/10.1594/PANGAEA.883407
  26. Loher, M; Pape, T; Marcon, Y et al. (2017): Temperature measurements at T-Stick ROV station GeoB19267-7. https://doi.org/10.1594/PANGAEA.883465