Deutsches Ozeanographisches
Datenzentrum Inventur der Sonne1-Reise SO224 (DOD-Ref-No.20120283)
Inventory of Sonne1 Cruise SO224 (DOD-Ref-No.20120283)

Plattform
Platform
Reise-Nr.
Cruise-No.
Zeitraum
Period
Projekt
Project
Arbeitsgebiet
Working area
Sonne1 SO224 09.10.2012 - 18.11.2012 MANIHIKI II
 
SW Pacific (Limit 140W)  

Fahrtleiter
Chief Scientist
Institut
Institute
Auslaufhafen
Port of departure
Einlaufhafen
Port of return
Stationskarte
Station map
Schiffsroute
Trackchart
Uenzelmann-Neben Gabriele Alfred-Wegener-Institut fur Polar- und Meeresforschung Suva Suva   

Ziel der Reise / Objectives of Cruise:

Cruise Leg So 224 with RV Sonne, leaving Suva, Fiji on 11.10.12, returning to Suva, Fiji on 17.11.12, comprised seismic reflection and refraction studies of the Manihiki Plateau, a Large Igneous Province (LIP) in the south western Pacific Ocean. The Manihiki Plateau consists of three major geomorphological unit: Western Plateau, North Plateau, and High Plateau. A study of the crustal structure of Western and High Plateau was needed to understand the proposed evolution of the Manihiki Plateau as part of a 'super' LIP together with the Ontong-Java and Hikurangi Plateaus. Seismic refraction and wide-angle data collected with 33 ocean bottom seismometers along two 270 nm long profiles will provide details on the crustal development. Seismic reflection data were gathered to study the plateau's development following the initial phase of creation and the sedimentary distribution. Additionally, the data will be used to identify suitable drill locations for IODP proposal 630. In total ~4200 km of high resolution seismic reflection data, and ~1000 km of seismic refraction and wide-angle data were recorded. Bathymetric and Parasound data were recorded parallel to the seismic profiling. Both datasets have been used to pick significant locations for petrological sampling, which will be the focus of the following cruise So 225.

Messungen / Measurements

Institut
Institute
Wissenschaftler
Scientist
Anzahl
Number
Einheit
Unit
Typ der Messungen
Type of measurements
Kommentar
Comments
Daten im DOD
Data in DOD
AWI Uenzelmann-Neben Gabriele 66 stations G26
Seismic refraction (no.of nautical miles)
OBS stations no
AWI Uenzelmann-Neben Gabriele 6000 km G73
Single-beam echosounding
Parasound no
AWI Uenzelmann-Neben Gabriele 6000 km G74
Multi-beam echosounding
Simrad E120 no
AWI Uenzelmann-Neben Gabriele 4200 km G76
Multichannel seismic reflection
- no
AWI Uenzelmann-Neben Gabriele 1 km G90
Other geological or geophysical measurements
Multibeam EM yes
AWI Uenzelmann-Neben Gabriele 1 stations H10
CTD-Stations
- no
AWI Uenzelmann-Neben Gabriele 1 n miles H80
Other physical measurements
Underway measurements during the whole trip such as coordinates, depth, meteorological parameter and so on yes
16.11.2019