Wefer, Gerold; Adegbie, Adesina T; Böckel, Babette; Brauner, Ralf; Büttner, Ute; Diekamp, Volker; Dillon, Melanie; von Dobeneck, Tilo; Donner, Barbara; Eberwein, Astrid; Heinecke-Herzog, Marion; Kim, Jung-Hyun; Meier, K J Sebastian; Mollenhauer, Gesine; Olguín, Héctor F; Romero, Oscar E; Schewe, Felix; Schlemm, Volker; Schmieder, Frank; Schünemann, Henrike; Streng, Michael; Volbers, Andrea N A (2001): Report and preliminary results of Meteor Cruise M 46/4, Mar del Plata (Argentina) - Salvador da Bahia (Brazil), February 10 - March 13, 2000. With partial results of METEOR cruise M 46/2. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 173, 136 pp, urn:nbn:de:gbv:46-ep000102987
Median Latitude: -39.573558 * Median Longitude: -21.013339 * South-bound Latitude: -44.516800 * West-bound Longitude: -24.248500 * North-bound Latitude: -31.950000 * East-bound Longitude: -12.229800
Date/Time Start: 2000-02-17T10:49:00 * Date/Time End: 2000-03-04T04:55:00
GeoB6402-11 * Latitude: -39.742800 * Longitude: -22.756300 * Date/Time: 2000-02-17T10:49:00 * Elevation: -3883.0 m * Recovery: 11.48 m * Location: Central South Atlantic * Campaign: M46/4 * Basis: Meteor (1986) * Device: Gravity corer (Kiel type) (SL) * Comment: geology and geophysics
GeoB6403-3 * Latitude: -40.013200 * Longitude: -23.365000 * Date/Time: 2000-02-17T17:46:00 * Elevation: -4227.0 m * Recovery: 12.86 m * Location: Central South Atlantic * Campaign: M46/4 * Basis: Meteor (1986) * Device: Gravity corer (Kiel type) (SL) * Comment: geology and geophysics, CTD at 50 m
The sediment series recovered during METEOR Cruise M 46/4 with the gravity corer were subject to laboratory geophysical studies. Shipboard measurements on the segmented cores routinely comprised three basic physical parameters: - compressional (p-) wave velocity vp, - electric resistivity Rs (as a measure of density and porosity), and, - magnetic volume susceptibility K.
These properties are dosely related to lithology and grain size of the sediments and provide highresolution care logs (spacing 1 cm for p-wave velocity, 2 cm for electric resistivity and magnetic volume susceptibility) available prior to all other detailed investigations. In addition, oriented sampies for subsequent shore based rock and paleomagnetic studies were taken at typically 5 cm intervals.