8. Data Report: Magnetic Properties of Core Sediments from Site 1081 (Walvis Ridge), Leg 1751

Gina Marie Frost2 and Toshitsugu Yamazaki3


Magnetic properties are reported for samples from sediment cores recovered at Site 1081 on the Walvis Ridge (~20S) during Leg 175 of the Ocean Drilling Program. Rock magnetic data indicate that the remanence is carried by low-coercivity minerals. Paramagnetic and diamagnetic minerals dominate the susceptibility. Comparison of measurements made aboard ship with those made on shore after the cruise indicate a marked loss of magnetization, probably due to dissolution of some magnetic minerals after core recovery similar to that which has occurred at other Leg 175 sites.

1 Frost, G.M., and Yamazaki, T., 2001. Data report: Magnetic properties of core sediments from Site 1081 (Walvis Ridge), Leg 175. In Wefer, G., Berger, W.H., and Richter, C. (Eds.), Proc. ODP, Sci. Results, 175 [Online]. Available from World Wide Web: <http://www-odp.tamu.edu/publications/175_SR/chap_08/chap_08.htm>. [Cited YYYY-MM-DD]

2 Hawaii Institute of Geophysics and Planetology, School of Ocean and Earth Science and Technology, University of Hawaii, Honolulu HI 96822, USA. Present address: Central Oregon Community College, Bend OR 97702, USA. gfrost@cocc.edu

3 Geological Survey of Japan, 1-1-3 Higashi, Tsukuba, Ibaraki 305-8567, Japan.

Initial receipt: 21 February 2000
Acceptance: 14 September 2000
Web publication: 16 April 2001
Ms 175SR-206