O'Connell, Suzanne and Ortiz, Joseph D. (2003): Calcium carbonate stratigraphy from sample measurements and diffuse spectral reflectance at Site 1090, ODP Leg 177
Leg/Site/Hole:
Related Expeditions:
ODP 177
Identifier:
ID:
2003-053334
Type:
georefid
ID:
10.2973/odp.proc.sr.177.112.2002
Type:
doi
Creator:
Name:
O'Connell, Suzanne
Affiliation:
Wesleyan University, Department of Earth and Environmental Sciences, Middletown, CT, United States
Role:
author
Name:
Ortiz, Joseph D.
Affiliation:
University of Florida, United States
Role:
author
Identification:
Title:
Calcium carbonate stratigraphy from sample measurements and diffuse spectral reflectance at Site 1090, ODP Leg 177
Year:
2003
Source:
In: Gersonde, Rainer, Hodell, David A., Blum, Peter, Andersson, Carin, Austin, William E. N., Billups, Katharina, Channell, James E. T., Charles, Christopher D., Diekmann, Bernhard, Filippelli, Gabriel M., Flores, Jose-Abel, Hewitt, Antony T., Howard, William R., Ikehara, Minoru, Janecek, Thomas R., Kanfoush, Sharon L., Kemp, Alan E. S., King, Stagg L., Kleiven, Helga Flesche, Kuhn, Gerhard, Marino, Maria, Ninnemann, Ulysses S., O'Connell, Suzanne, Ortiz, Joseph D., Stoner, Joseph S., Sugiyama, Kazuhiro, Warnke, Detlef A., Zielinski, Ulrich, Proceedings of the Ocean Drilling Program, scientific results; Southern Ocean paleoceanography; covering Leg 177 of the cruises of the drilling vessel JOIDES Resolution; Cape Town, South Africa, to Punta Arenas, Chile; sites 1088-1094; 9 December 1997-5 February 1998
Publisher:
Texas A&M University, Ocean Drilling Program, College Station, TX, United States
Volume:
177
Issue:
Pages:
Abstract:
A total of 776 sediment samples were measured for percent CaCO (sub 3) using a coulometer. These data are compared with percent blue reflectance (450-550 nm) measured with the Oregon State University split-core analysis track. In previous studies percent blue reflectance has been an excellent proxy for percent CaCO3 and in this study shows many of the main depositional trends (i.e., a 100-k.y. cycle, with a 55% reflectance range is evident in the upper 900 k.y., underlain by sediments exhibiting a 40-k.y. cycle with only a 30% reflectance range). Between approximately 21 and 5 Ma the average percent reflectance decreases from approximately 35% to approximately 8%. A similar decrease is also recorded between approximately 24 and 22 Ma.
Language:
English
Genre:
Serial
Rights:
URL:
Coverage: Geographic coordinates: North:-42.5449 West:8.5359 East:
8.5359 South:-42.5449
Keywords: Stratigraphy; biostratigraphy; bulk density; calcium carbonate; Cenozoic; climate change; cores; cycles; Leg 177; lithostratigraphy; measurement; Neogene; Ocean Drilling Program; ODP Site 1090; paleo-oceanography; paleoclimatology; paleoenvironment; paleomagnetism; Quaternary; reflectance; sedimentation; sedimentation rates; Southern Ocean; Tertiary;
.