Venuti, Alessandra et al. (2006): Paleomagnetic and environmental magnetic properties of sediments from Site 1202 (Kuroshio Current)

Leg/Site/Hole:
ODP 195
ODP 195 1202
Identifier:
2006-066613
georefid
10.2973/odp.proc.sr.195.111.2005
doi
Creator:
Venuti, Alessandra
Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy
author
Richter, Carl
Geological Survey of Canada, Canada
author
Verosub, Kenneth L.
Ocean Drilling Program, United States
author
Identification:
Paleomagnetic and environmental magnetic properties of sediments from Site 1202 (Kuroshio Current)
2006
In: Shinohara, Masanao (editor), Salisbury, Matthew H. (editor), Richter, Carl (editor), Araki, Eiichiro, Barr, Samantha R., D'Antonio, Massimo, Dean, Simon M., Diekmann, Bernhard, Edwards, K. Michelle, Fryer, Patricia B., Gaillot, Philippe J., Hammon, William S., III, Hart, David, Januszczak, Nicole, Komor, Stephen C., Kristensen, Mette B., Lockwood, John P., Mottl, Michael J., Moyer, Craig L., Nakahigashi, Kazuo, Savov, Ivan P., Su Xin, Wei, Kuo-Yen, Yamada, Tomoaki, Proceedings of the Ocean Drilling Program; scientific results; seafloor observatories and the Kuroshio Current; covering Leg 195 of the cruises of the drilling vessel JOIDES Resolution; Apra Harbor, Guam, to Keelung, Taiwan; Sites 1200-1202; 2 March-2 May 2001
Texas A&M University, Ocean Drilling Program, College Station, TX, United States
195
We present paleomagnetic and mineral magnetic results from ocean sediments from the southern Okinawa Trough (west Pacific). We obtained samples from two holes from Ocean Drilling Program Site 1202 and determined the natural remanent magnetization, magnetic susceptibility, anhysteretic remanent magnetization (ARM), hysteresis properties, and thermomagnetic behavior. Hole 1202A was studied between 100 and 120 meters below seafloor (mbsf) and Hole 1202B between 0 and 140 mbsf, both at 1-cm resolution. Hysteresis properties and thermomagnetic behavior were measured on selected samples. The measurements show a stable magnetization carried by pseudo-singledomain-sized low-titanium magnetite. Magnetic inclinations are predominantly positive and record the Brunhes (C1n) normal polarity chron. Susceptibility and ARM, as well as the environmentally significant rock magnetic ratios (ARM/k and ARM (sub 30 mT) /ARM (sub 0 mT) ), reflect changes in sediment input from Taiwan and the East China Sea continental shelf changes in the path of the Kuroshio Current and changes in climatic conditions.
English
Serial
Coverage:Geographic coordinates:
North:24.4900
West:122.3000East: 122.3100
South:24.4800
Quaternary geology; anhysteretic remanent magnetization; Brunhes Chron; Cenozoic; currents; Kuroshio; Leg 195; magnetic properties; magnetization; marine sediments; natural remanent magnetization; North Pacific; Northwest Pacific; ocean currents; Ocean Drilling Program; ODP Site 1202; Okinawa Trough; Pacific Ocean; paleomagnetism; Quaternary; remanent magnetization; sediments; thermal analysis; thermomagnetic analysis; upper Quaternary; West Pacific;
.