Arai, Kohsaku and Sato, Tokiyuki (2000): Magnetic properties and their implications at Site 1007

Leg/Site/Hole:
ODP 166
ODP 166 1007
Identifier:
2001-002883
georefid
10.2973/odp.proc.sr.166.121.2000
doi
Creator:
Arai, Kohsaku
Geological Survey of Japan, Marine Geology Department, Tsukuba, Japan
author
Sato, Tokiyuki
Ocean Drilling Program, United States
author
Identification:
Magnetic properties and their implications at Site 1007
2000
In: Swart, Peter K., Eberli, Gregor P., Malone, Mitchell J., Anselmetti, Flavio S., Arai, Kohsaku, Bernet, Karin H., Betzler, Christian, Christensen, Beth A., De Carlo, Eric Heinen, Dejardin, Pascale M., Emmanuel, Laurent, Frank, Tracy D., Haddad, Geoffrey A., Isern, Alexandra R., Katz, Miriam E., Kenter, Jeroen A. M., Kramer, Philip A., Kroon, Dick, McKenzie, Judith A., McNeill, Donald F., Montgomery, Paul, Nagihara, Seiichi, Pirmez, Carlos, Reijmer, John J. G., Sato, Tokiyuki, Schovsbo, Niels H., Williams, Trevor, Wright, James D., Lowe, Ginny (editor), Proceedings of the Ocean Drilling Program, scientific results, Bahamas Transect; covering Leg 166 of the cruises of the drilling vessel JOIDES Resolution, San Juan, Puerto Rico, to Balboa Harbor, Panama, sites 1003-1009, 17 February-10 April 1996
Texas A & M University, Ocean Drilling Program, College Station, TX, United States
166
35-43
A detailed rock magnetic study was conducted on the top six cores (above 57.5 meters below seafloor) at Site 1007. The calcareous nannofossil biostratigraphy assigns the studied intervals to an age ranging from early Pleistocene to Holocene. We found two significant conversion points in the Pleistocene based on isothermal remanent magnetization (IRM) acquisition and on alternating field demagnetization of anhysteretic remanent magnetization and IRM. These conversion points correlate strongly with changes in sedimentation rate and lithology. We conclude that the paleomagnetic signals reflect changes of rate of sediment supply and of paleoenvironment on the western edge of the Great Bahama Bank.
English
Serial
Coverage:Geographic coordinates:
North:24.3016
West:-79.1921East: -79.1921
South:24.3016
Quaternary geology; algae; anhysteretic remanent magnetization; Atlantic Ocean; Caribbean Sea; Cenozoic; clastic sediments; Great Bahama Bank; isothermal remanent magnetization; Leg 166; lithofacies; magnetic properties; magnetization; marine sediments; nannofossils; natural remanent magnetization; North Atlantic; Ocean Drilling Program; ODP Site 1007; ooze; paleoclimatology; paleomagnetism; Plantae; Quaternary; reconstruction; remanent magnetization; sediments; variations;
.