Deutsches Ozeanographisches
Datenzentrum
Inventur der Sonne-Reise SO251-2 (DOD-Ref-No.20160126)
Inventory of Sonne Cruise SO251-2 (DOD-Ref-No.20160126)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Sonne | SO251-2 | 16.10.2016 - 30.10.2016 | North Pacific Ocean |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Kopf Achim | Universitat Bremen, Zentrum fur Marine Umweltwissenschaften | Yokohama | Yokohama |
Ziel der Reise / Objectives of Cruise:
The focus of R/V Sonne voyage SO251 - EAGER-Japan ?Extreme events Archived in the GElogical Record of Japan's Subduction margins" was to investigate fluid- and sediment mobilization processes by mud volcanism, earthquake-triggered seafloor displacement, submarine landslide and related "paleoseismologic event deposits" and to compare inferred earthquake processes and rates along accretionary vs. erosive subduction margins of Japan (Nankai Trough and Japan Trench, respectively). The second part of SO251 (Leg 2) started on Oct 18 from Yokohama to the Kumano Basin off SW Japan. During the short voyage, which ended on Nov 02 back in Yokohama, we mapped wide portions of the Kumano Basin and adjacent topographic steps, e.g. the topographic high in the South where the Megaspaly fault is actively accreting sediment. We now have a complete high-resolution bathymetric map of the study area and many hundreds of kilometers of subbottom Parasound profiles. We also dove 7 times with ROV PHOCA to recover seafloor instruments and survey active mud volcanoes. The work was complemented by gravity and piston coring in strategic locations and heat flow surveys to identify hydrogeologically active zones
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
MARUM | Kopf Achim | 11 | cores | G04 Core-soft bottom (no. of cores) |
Piston Corer. | no |
MARUM | Kopf Achim | 7 | diving(s) | G71 In-situ sea floor measurements |
ROV. | no |
MARUM | Kopf Achim | 10 | stations | G71 In-situ sea floor measurements |
Heat Flow Probe. | no |
MARUM | Kopf Achim | 15 | profiles | G73 Single-beam echosounding |
Kongsberg EM122. | no |
MARUM | Kopf Achim | 1 | profiles | G74 Multi-beam echosounding |
Parasound (ROV). | no |
MARUM | Kopf Achim | 1 | n miles | G90 Other geological or geophysical measurements |
EM122, Parasound | yes |
MARUM | Kopf Achim | 44 | stations | H00 Stations |
- | yes |
MARUM | Kopf Achim | 1 | stations | H10 CTD-Stations |
CTD. | no |
MARUM | Kopf Achim | 1 | n miles | H80 Other physical measurements |
Underway measurements during the whole trip such as coordinates, depth, meteorological parameter and so on | yes |