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doi:10.2204/iodp.proc.303306.215.2011

Data report: anisotropy of magnetic susceptibility of sand layers and detrital carbonate layers in deep-sea sediments from the Labrador Sea, North Atlantic¹

Kiichiro Kawamura² and Toshiya Kanamatsu³

Abstract

Microfabrics of sand and detrital carbonate layers were deduced from a study on magnetic susceptibility anisotropy of drill core sediments obtained from Site U1305 during Integrated Ocean Drilling Program Expedition 303. The magnetic minerals that contribute to the magnetic susceptibility and their anisotropy are assumed to be ferrimagnetic minerals according to their magnetic hysteresis analyses. Maximum magnetic susceptibility (Kmax) directions of those layers are largely scattered, but Kmax resides in the southeast margin of the diagram with 5°–10° inclination. Kmin is mostly concentrated in a vertical direction with a 5°–10° northwest plunge.

¹ Kawamura, K., and Kanamatsu, T., 2011. Data report: anisotropy of magnetic susceptibility of sand layers and detrital carbonate layers in deep-sea sediments from the Labrador Sea, North Atlantic. In Channell, J.E.T., Kanamatsu, T., Sato, T., Stein, R., Alvarez Zarikian, C.A., Malone, M.J., and the Expedition 303/306 Scientists, Proc. IODP, 303/306: College Station TX (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/​iodp.proc.303306.215.2011

² Fukada Geological Institute, 2-13-12 Honkomagome, Bunkyo, 113-0021 Tokyo, Japan. kichiro@fgi.or.jp

³ Japan Agency for Marine Science and Technology, 2-15 Natsushima, Yokosuka, 246-0041 Kanagawa, Japan.

Initial receipt: 15 March 2011
Acceptance: 16 June 2011
Publication: 30 September 2011
MS 303306-215

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