Watanabe, Yoshio et al. (2000): Data report; trace element geochemistry of the Blake Ridge sediments at site 997

Leg/Site/Hole:
ODP 164
ODP 164 997
Identifier:
2001-025810
georefid
10.2973/odp.proc.sr.164.223.2000
doi
Creator:
Watanabe, Yoshio
Geological Survey of Japan, Mineral and Fuel Resources Department, Tsukuba, Japan
author
Mastumoto, Ryo
University of Tokyo, Japan
author
Lu, Hailong
Ocean Drilling Program, United States
author
Identification:
Data report; trace element geochemistry of the Blake Ridge sediments at site 997
2000
In: Paull, Charles K., Matsumoto, Ryo, Wallace, Paul J., Black, Nancy R., Borowski, Walter S., Collett, Timothy S., Damuth, John E., Dickens, Gerald R., Egeberg, Per Kristian, Goodman, Kim, Hesse, Reinhard F., Hiroki, Yoshihisa, Holbrook, W. Steven, Hoskins, Hartley, Ladd, John, Lodolo, Emanuele, Lorenson, Thomas D., Musgrave, Robert J., Naehr, Thomas H., Okada, Hisatake, Pierre, Catherine, Ruppel, Carolyn D., Satoh, Mikio, Thiery, Regis, Watanabe, Yoshio, Wehner, Hermann, Winters, William J., Wood, Warren T., Miller, Christine M. (editor), Reigel, Ruth (editor), Proceedings of the Ocean Drilling Program; volume 164; scientific results; gas hydrate sampling on the Blake Ridge and Carolina Rise; covering Leg 164 of the cruises of the drilling vessel JOIDES Resolution, Halifax, Nova Scotia, to Miami, Florida, sites 991-997, 31 October-19 December 1995
Texas A & M University, Ocean Drilling Program, College Station, TX, United States
164
151-163
Twenty-two trace elements in 355 sediment samples from Site 997 on the Blake Ridge were examined by inductively coupled plasma-optical emission spectrometry and inductively coupled plasma-mass spectrometry, for respective fractions of acid-soluble and insoluble compositions. Downhole profiles of these elements exhibit complicated fluctuations throughout late Miocene to Pleistocene, principally due to the variations in the acid-soluble fraction. Noncarbonate composition is given from the acid-insoluble residues, which permits us to recognize secular feature of selected element variance for four intervals. These intervals (I: 0-183 mbsf; II: 183-440 mbsf; III: 440-618 mbsf; and IV: 618-750 mbsf) are interpreted to have originated from changes in the suite of sediments of particular sources and chemical composition, sedimentation rate, dilution of biogenic carbonate abundance, and possibly the current system that controlled deposition and reworking of the terrigenous materials.
English
Serial
Coverage:Geographic coordinates:
North:31.5035
West:-75.2807East: -75.2807
South:31.5035
Geochemistry of rocks, soils, and sediments; Oceanography; Atlantic Ocean; Blake-Bahama Outer Ridge; carbonates; Cenozoic; chemical composition; diagenesis; Holocene; Leg 164; marine sediments; Miocene; Neogene; North Atlantic; Ocean Drilling Program; ODP Site 997; Quaternary; sediments; Tertiary; trace elements; upper Miocene;
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