| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Sonne1 | 134 | 11.08.1998 - 08.09.1998 | HYFIFLUX |
South Pacific Ocean Fiji Basin |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Halbach P. | Institut fur Geologie, Freie Universitat Berlin | Suva | Suva |
Ziel der Reise / Objectives of Cruise:
Cruise So 134 and the interdisciplinary project HYFIFLUX II aimed at the study of the complex interactive processes in a hydrothermal field in the North Fjfi Basin. In the N 15? segment of the Central Fiji Ridge, a fossil hydrothermal field was sampled and an active hydrothermal field with diffusely renting low-temperature (<15? C) hydrothermal fluids was intensely investigated. A newly developed system (Hydro Bottom Station, HBS) was used to monitor and sample these fluids. The samples taken include basaltic rocks, hydrothermal ore, seawater and hydrothermal fluid, hydrothermal fauna and mirco-organisms. In another field further in the south, no active hydrothermalism was observed. The objectives of the project following analyses of the samples are the investigations of geo-bio interfaces in the hydrothermal system and of the geological and geochemical evolution of this area.
Messungen / Measurements
| Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
|---|---|---|---|---|---|---|
| IFMKI | Imhoff J. | 22 | samples | B07 Pelagic bacteria / micro-organisms |
Sulphur-oxidizing and methane trophic bacteria, bacterial diversity | no |
| IFMKI | Imhoff J. | 22 | samples | B16 Benthic bacteria / micro-organisms |
Sulphur-oxidizing and methane trophic bacteria, bacterial diversity | no |
| ZIMHH | Giese O. | 6 | stations | B18 Zoobenthos |
Zoology: taxonemy and ecological evaluation, research on symbiontic hydrothermal animals | no |
| FUBRU | Halbach P. | 12 | stations | G01 Dredge |
Rocks and hydrothermal ares | no |
| FUBRU | Halbach P. | 33 | stations | G02 Grab |
Hydrothermal ores and animals ( snakes, mussels, ....) | no |
| UNIGR | Mrazek J. | 13 | stations | G04 Core-soft bottom (no. of cores) |
Mineralogy and geochemistry of hydrothermal sediments | no |
| FUBRU | Halbach P. | 11 | stations | G08 Bottom photography |
Videos and photos with Ocean Floor Observation System (OFOS); geological and biological mapping | no |
| FUBRU | Halbach P. | 17 | stations | G71 In-situ sea floor measurements |
Iin-situ seafloor temperature measurements with HBS (Hydro Bottom Station) | no |
| FUBRU | Halbach P. | 670 | km | G74 Multi-beam echosounding |
Bathymetric mapping with wide-angle echo sounder "Hydrosweep DS-System" mapped areas: 16?55'S - 17?04'S, 173?51'E - 173?58'E, 18?45'S - 19?05'S, 173?25'E - 173?35'E | no |
| FUBRU | Halbach P. | 34 | stations | H09 Water bottle stations |
12 water samples each station | no |
| FUBRU | Halbach P. | 17 | stations | H10 CTD-Stations |
HBS= Hydro Bottom station, 12 samples each station taken directly at hte seafloor | no |
| IBGMHH | Michaelis W. | 17 | stations | H10 CTD-Stations |
CTD profiles with rostte water sampler | no |
| FUBRU | Halbach P. | 17 | stations | H22 Phosphates |
Analyses in water samples from CTD-Staions | no |
| IBGMHH | Michaelis W. | 34 | stations | H22 Phosphates |
12 water samples each station | no |
| FUBRU | Halbach P. | 17 | stations | H26 Silicates |
Analyses in water samples from CTD-Staions | no |
| IBGMHH | Michaelis W. | 34 | stations | H26 Silicates |
12 water samples each station | no |
| FUBRU | Halbach P. | 34 | stations | H27 Alkalinity |
12 water samples each station | no |
| FUBRU | Halbach P. | 17 | stations | H30 Trace elements |
Analyses in water samples from CTD-Staions | no |
| IBGMHH | Michaelis W. | 34 | stations | H30 Trace elements |
12 water samples each station | no |
| FUBRU | Halbach P. | 34 | stations | H33 Other dissolved gases |
12 water samples each station | no |
| IBGMHH | Michaelis W. | 17 | stations | H33 Other dissolved gases |
Methane, helium (CTD stations) | no |
| FUBRU | Halbach P. | 34 | stations | H74 Carbon dioxide |
12 water samples each station | no |
| FUBRU | Halbach P. | 34 | stations | H90 Other chemical oceanographic measurements |
12 water samples each station; sulfide | no |