Deutsches Ozeanographisches
Datenzentrum Inventur der Sonne1-Reise SO216-BAMBUSuni (DOD-Ref-No.20110419)
Inventory of Sonne1 Cruise SO216-BAMBUSuni (DOD-Ref-No.20110419)

Plattform
Platform
Reise-Nr.
Cruise-No.
Zeitraum
Period
Projekt
Project
Arbeitsgebiet
Working area
Sonne1 SO216-BAMBUSuni 14.06.2011 - 23.07.2011 BAMBUS
 
Bismark Sea  

Fahrtleiter
Chief Scientist
Institut
Institute
Auslaufhafen
Port of departure
Einlaufhafen
Port of return
Stationskarte
Station map
Schiffsroute
Trackchart
Bach Wolfgang Universitat Bremen Townsville Makassar   

Ziel der Reise / Objectives of Cruise:

The specific focus of the SO216 cruise was on vent fluid and biota sampling. The two working areas comprised North Su at 3?48.0'S, 152?06.05'E in about 1200 m water depth and PACMANUS at 3?43.5'S, 151?40.4'E in ~1700 m water depth. During nightly echosounding surveys with the ship-based EM-120 system, a comprehensive and detailed map of the eastern Manus Basin could be completed. Twenty-two dives with the ROV MARUM Quest 4000m were conducted, ten in the PACMANUS and twelve in the North Su area. Samples collected include hydrothermal fluids (using isobaric gas-tight 'Seewald' samplers and teflon KIPS bottles), biological specimen of vent macrofauna, microbial filaments and biofilms, as well as volcanic rocks and hydrothermal precipitates. A range of vent systems was sampled in both working areas. Geological mapping was carried out throughout the dives, and sections of some dives were specifically committed to mapping certain structures. The North Su volcano host countless hydrothermal vent sites, which fall into three categories: (i) black smoker vents, (ii) white smoker vents, and (iii) diffuse vents. While the black smokers cluster in the summit area, white smoker vents are common in a 120 m long and 50 m wide, east-west-trending area south of the main summit. The dense coverage with thick white smoke (most likely made up of sulfur particles) renders mapping and sampling in this area particularly challenging. At North Su, a prominent ash cone is located 100 m south of the summit and features numerous small craters on the top and smooth flanks with more blocky pyroclastic deposits. The cratered summit features extensive white staining and currents have created ripples in the fine ash. This cone was not observed, when North Su was mapped during the Magellan cruise in 2006. The new ash cone buried steep walls and talus slopes with countless white smoker vents, some of which were sampled in 2006. The newly discovered Sulfur Candles area is the easternmost and most spectacular of the white smoker clusters. It features hundreds of white smoker vents, many of which also emanate what appears to be gas bubbles, but is likely liquid CO2. We hypothesize that the slowly rising bubbles contain liquid CO2, forming when the temperature drops below 31?C. At 3?C (ambient temperature at 1200 m depth), liquid CO2 converts to CO2-clathrate at the interface with seawater. This behavior was documented by collection of liquid CO2 bubbles at Sulfur Candles. Prominent bubble flares were also visualized using the ship-based Parasound system. The Sulfur Candles site is situated in volcaniclastic sediments, which are impregnated with liquid sulfur around the vents. The sulfur is exuded when water and bubbles vent at the seafloor where it forms sub-meter-high, chimney-like structures.

Messungen / Measurements

Institut
Institute
Wissenschaftler
Scientist
Anzahl
Number
Einheit
Unit
Typ der Messungen
Type of measurements
Kommentar
Comments
Daten im DOD
Data in DOD
GEOUNB Bach Wolfgang 2 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 10.07.2011 no
GEOUNB Bach Wolfgang 3 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 06.07.2011 no
GEOUNB Bach Wolfgang 3 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 07.07.2011 no
GEOUNB Bach Wolfgang 3 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 09.07.2011 no
GEOUNB Bach Wolfgang 5 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 04.07.2011 no
GEOUNB Bach Wolfgang 5 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 05.07.2011 no
GEOUNB Bach Wolfgang 5 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 08.07.2011 no
GEOUNB Bach Wolfgang 5 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 21.06.2011 no
GEOUNB Bach Wolfgang 5 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 22.06.2011 no
GEOUNB Bach Wolfgang 5 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 24.06.2011 no
GEOUNB Bach Wolfgang 5 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 26.06.2011 no
GEOUNB Bach Wolfgang 5 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 28.06.2011 no
GEOUNB Bach Wolfgang 5 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 29.06.2011 no
GEOUNB Bach Wolfgang 5 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 30.06.2011 no
GEOUNB Bach Wolfgang 6 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 02.07.2011 no
GEOUNB Bach Wolfgang 6 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 11.07.2011 no
GEOUNB Bach Wolfgang 6 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 19.06.2011 no
GEOUNB Bach Wolfgang 6 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 25.06.2011 no
GEOUNB Bach Wolfgang 6 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 27.06.2011 no
GEOUNB Bach Wolfgang 7 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 01.07.2011 no
GEOUNB Bach Wolfgang 7 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 03.07.2011 no
GEOUNB Bach Wolfgang 9 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 20.06.2011 no
GEOUNB Bach Wolfgang 9 tracks G74
Multi-beam echosounding
Simrad EM120 bathymetry. 23.06.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 01.07.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 03.07.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 04.07.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 05.07.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 06.07.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 07.07.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 08.07.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 09.07.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 10.07.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 11.07.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 19.06.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 20.06.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 21.06.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 22.06.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 23.06.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 24.06.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 25.06.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 26.06.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 27.06.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 28.06.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 29.06.2011 no
GEOUNB Bach Wolfgang 1 diving(s) G90
Other geological or geophysical measurements
ROV 'MARUM Quest 4000m'. 30.06.2011 no
GEOUNB Bach Wolfgang 1 km G90
Other geological or geophysical measurements
Multibeam EM 120 yes
GEOUNB Bach Wolfgang 1 n miles H80
Other physical measurements
Underway measurements during the whole trip such as coordinates, depth, meteorological parameter and so on yes

Verankerungen / Moorings

Institut
Institute
Wissenschaftler
Scientist
Typ der Messungen
Type of measurements
Kommentar
Comments
geogr.Breite
Latitude
geogr.Länge
Longitude
Daten im DOD
Data in DOD
GEOUNB Bach Wolfgang G02 rock sampling 3° 48.4' S 152° 5.7' E no
GEOUNB Bach Wolfgang G02 rock sampling 3° 48.1' S 152° 6.1' E no
GEOUNB Bach Wolfgang G02 rock sampling 3° 46.5' S 152° 7.0' E no
GEOUNB Bach Wolfgang G02 rock sampling 3° 43.8' S 151° 40.5' E no
GEOUNB Bach Wolfgang G02 rock sampling 3° 43.8' S 151° 40.4' E no
GEOUNB Bach Wolfgang H10 sound velocity profile 3° 51.5' S 152° 8.0' E no
GEOUNB Bach Wolfgang H10 sound velocity profile 3° 51.5' S 152° 8.0' E no
GEOUNB Bach Wolfgang H10 sound velocity profile 3° 48.0' S 152° 6.1' E no
GEOUNB Bach Wolfgang H10 sound velocity profile 3° 47.0' S 151° 40.5' E no
16.11.2019