Deutsches Ozeanographisches
Datenzentrum
Inventur der Polarstern-Reise ANT XXIII/5 (DOD-Ref-No.20060141)
Inventory of Polarstern Cruise ANT XXIII/5 (DOD-Ref-No.20060141)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Polarstern | ANT XXIII/5 | 13.04.2006 - 12.06.2006 | South Atlantic Ocean |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Jokat Wilfried | Alfred-Wegener-Institut fur Polar- und Meeresforschung | Punta Arenas | Cape Town |
Ziel der Reise / Objectives of Cruise:
Systematic petrological/geophysical attempt to conduct extensive experiments in order to better understand the Mesozoic/Cenozoic "hotspot" volcanism in the South Atlantic. So far only few, randomly distributed samples exist from the Shona Ridge-Meteor Rise-Agulhas Ridge-Cape Rise and the Discovery Seamounts exist to better constrain their temporal evolution. 1)Within the petrological programme the Shona, Discovery and Cape Rise Seamounts were dredged with variable success. In addition, dredge samples from the southern Walvis Ridge were obtained. 2)Seismic reflection and refraction (OBS) experiments were conducted across the Discovery and the western Cape Rise Seamounts/Agulhas Ridge were conducted to determine the deep crustal structure of these feeatures. Similar experiments (1x refraction line, 3 seismic reflection lines) were measured across the southern Walvis Ridge. SeaGeophysical information in these areas are almost absent. This is especially true for deep seismic and multichannel seismic data. Potential field data were acquired along the entire ship track. Helicopter borne magnetic data were acquired parallel to the dredging operations.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
MBHB | Auel Holger | 16 | stations | B09 Zooplankton |
Multinet samples | no |
UAMST | O'Conner John | 40 | stations | G01 Dredge |
Dredge | no |
AWI | Jokat Wilfried | 1020 | km | G26 Seismic refraction (no.of nautical miles) |
Three profiles were acquired using OBS/OBH/Landstations at 127 different locations | no |
AWI | Jokat Wilfried | 10844 | n miles | G27 Gravity measurements |
Acquired with a fixed mounted ship board system (Gravimeter) | no |
AWI | Jokat Wilfried | 10844 | n miles | G28 Magnetic measurements |
Acquired with a fixed mounted ship board system (Vectormagnetometer) | no |
AWI | Jokat Wilfried | 24457 | km | G28 Magnetic measurements |
Acquired with a magnetic helicopter system | no |
AWI | Schenke H.W. | 1843 | km | G73 Single-beam echosounding |
Parasound sediment echosounding data | no |
AWI | Schenke H.W. | 10844 | n miles | G74 Multi-beam echosounding |
Hydrosweep data | no |
AWI | Jokat Wilfried | 1843 | km | G76 Multichannel seismic reflection |
Acquired with a 800 m streamer | no |
AWI | Schenke H.W. | 4 | stations | H10 CTD-Stations |
Vertical profiles of temperature and salinity with a Sea-Bird SBE9+ CTD | no |