Deutsches Ozeanographisches
Datenzentrum Inventur der Sonne-Reise SO266 (DOD-Ref-No.20180051)
Inventory of Sonne Cruise SO266 (DOD-Ref-No.20180051)

Plattform
Platform
Reise-Nr.
Cruise-No.
Zeitraum
Period
Projekt
Project
Arbeitsgebiet
Working area
Sonne SO266 15.10.2018 - 18.11.2018 SO266 - TAIDRILL
 
South China Sea  

Fahrtleiter
Chief Scientist
Institut
Institute
Auslaufhafen
Port of departure
Einlaufhafen
Port of return
Stationskarte
Station map
Schiffsroute
Trackchart
Bohrmann Gerhard Universitat Bremen, Zentrum fur Marine Umweltwissenschaften Kaohsiung Kang Kaohsiung Kang   

Ziel der Reise / Objectives of Cruise:

SO266-1:MeBo200 methane hydrate drillings southwest of Taiwan – Project "TaiDrill". The gas hydrate system off southwest Taiwan offers the unique opportunity to study the influence of tectonic settings on gas hydrate dynamics. The gas hydrate system extends on both sides of the deformation front that separates the passive continental margin of the South China Sea from the active margin of the Manila Trench while maintaining its lithostratigraphy. Throughout the past 19 years numerous geophysical, geochemical, and sedimentological studies have been conducted in this area to make use of this unique tectonic setting. During cruise SO266 we plan to drill four MeBo sites to quantitatively constrain the geological processes that lead to gas hydrate formation and dissociation. This will also help in determining the gas hydrate resource potential of this continental margin. The main scientific aim of the proposed project is to test the hypothesis if fluid migration through thrust faults in the active continental margin lead to much higher gas hydrate concentrations than those that can be found in passive margin settings. Secondly, we will constrain the impact of different lithologies on gas hydrate variations in the passive margin setting. After the cruise, various sedimentological, stratigraphic and geochemical analyses of the MeBo- and gravity cores will be perfomed. Those data will form, together with the MSCL- and borehole logging data, basic parameters for models about gas hydrate formation and distribution in deep sea deposits. Geophysical data of SO227 cruise (3D seismic, EM and T-measurements) will be reinterpreted based on the new drilling results.

Messungen / Measurements

Institut
Institute
Wissenschaftler
Scientist
Anzahl
Number
Einheit
Unit
Typ der Messungen
Type of measurements
Kommentar
Comments
Daten im DOD
Data in DOD
GEOMAH Berndt Christian 9 stations G04
Core-soft bottom (no. of cores)
gravity coring. no
MARUM Bohrmann Gerhard 9 stations G04
Core-soft bottom (no. of cores)
gravity coring. no
NTU Lin Saulwood 9 stations G04
Core-soft bottom (no. of cores)
gravity coring. no
GEOMAH Berndt Christian 6 stations G08
Bottom photography
OFOS profiles at the bottom. no
MARUM Bohrmann Gerhard 6 stations G08
Bottom photography
OFOS profiles at the bottom. no
NTU Lin Saulwood 6 stations G08
Bottom photography
OFOS profiles at the bottom. no
GEOMAH Berndt Christian 4176 km G72
Geophysical measurements made at depth (below near surface and above seafloor)
Sediment echosounding PARASOUND. no
MARUM Bohrmann Gerhard 4176 km G72
Geophysical measurements made at depth (below near surface and above seafloor)
Sediment echosounding PARASOUND. no
NTU Lin Saulwood 4176 km G72
Geophysical measurements made at depth (below near surface and above seafloor)
Sediment echosounding PARASOUND. no
GEOMAH Berndt Christian 4176 km G74
Multi-beam echosounding
Multibeam mapping. no
MARUM Bohrmann Gerhard 4176 km G74
Multi-beam echosounding
Multibeam mapping. no
NTU Lin Saulwood 4176 km G74
Multi-beam echosounding
Multibeam mapping. no
GEOMAH Berndt Christian 3 stations G90
Other geological or geophysical measurements
Hear flow measurements. no
GEOMAH Berndt Christian 11 stations G90
Other geological or geophysical measurements
MeBo drilling holes (G07). no
MARUM Bohrmann Gerhard 1 n miles G90
Other geological or geophysical measurements
Multibeam EM 122, EM710, Parasound, ADCP38 kHz yes
MARUM Bohrmann Gerhard 11 stations G90
Other geological or geophysical measurements
MeBo drilling holes (G07). no
NTU Lin Saulwood 11 stations G90
Other geological or geophysical measurements
MeBo drilling holes (G07). no
GEOMAH Berndt Christian 15 stations H10
CTD-Stations
CTD profiles. no
MARUM Bohrmann Gerhard 15 stations H10
CTD-Stations
CTD profiles. no
NTU Lin Saulwood 15 stations H10
CTD-Stations
CTD profiles. no
MARUM Bohrmann Gerhard 1 n miles H80
Other physical measurements
Underway measurements during the whole trip such as coordinates, depth, meteorological parameter and so on yes
7.12.2019