Sawyer, Derek E. et al. (2008): Data report; Particle size analysis of sediments in the Ursa Basin, IODP Expedition 308 Sites U1324 and U1322, northern Gulf of Mexico
Leg/Site/Hole:
Related Expeditions:
IODP 308
Identifier:
ID:
2011-019888
Type:
georefid
Creator:
Name:
Sawyer, Derek E.
Affiliation:
University of Texas, Jackson School of Geosciences, Austin, TX, United States
Role:
author
Name:
Jacoby, Ryan
Affiliation:
Albert-Ludwigs-Universitaet Freiburg, Germany
Role:
author
Name:
Flemings, Peter B.
Affiliation:
University of California-Santa Cruz, United States
Role:
author
Name:
Germaine, John T.
Affiliation:
Lamont-Doherty Earth Observatory, United States
Role:
author
Identification:
Title:
Data report; Particle size analysis of sediments in the Ursa Basin, IODP Expedition 308 Sites U1324 and U1322, northern Gulf of Mexico
Year:
2008
Source:
In: Flemings, Peter B., Behrmann, Jan H., John, Cedric M., Iturrino, Gerardo J., Aizawa, Yasutaka, Nguyen Thi Thanh Binh, De Silva, Neil, Dugan, Brandon, Edeskar, Tommy M., Franke, Christine, Gay, Aurelien, Gilhooly, William Patrick, III, Gutierrez-Pastor, Julia, Jiang Shaoyong, Li Qianyu, Long, Hui, Moore, J. Casey, Nunoura, Takuro, Pirmez, Carlos, Reichow, Marc, Sawyer, Derek E., Schneider, Julia, Shumnyk, Anatoliy V., Suzuki, Takahiro, Takano, Yoshinori, Urgeles, Roger, Yamamoto, Yuzuru, Zampetti, Valentina, Proceedings of the Integrated Ocean Drilling Program; Gulf of Mexico hydrogeology; Expedition 308 of the riserless drilling platform; Mobile, Alabama, to Balboa, Panama; Sites U1319-U1324; 30 May-8 July 2005
Publisher:
IODP Management International, Washington, DC, United States
Volume:
308
Issue:
Pages:
Abstract:
We conducted particle size analyses on 340 samples from Integrated Ocean Drilling Program Expedition 308 Sites U1324 (246 samples) and U1322 (94 samples) in the Ursa Basin (Gulf of Mexico) and found two characteristic lithologies: silty clay and clayey silt. Silty clays are composed of approximately 60% (+ or -10%) clay-sized particles by weight, approximately 40% silt-sized particles by weight, and <1% sandsized particles by weight. Clayey silts are generally composed of approximately 30% clay-sized particles by weight, 65%-70% silt-sized particles by weight, and 0%-5% sand-sized particles by weight. Site U1322 is dominated by silty clays with little particle size variation throughout the cored interval (0-235 meters below seafloor [mbsf]). At Site U1324, both lithologies occur where the lowermost section ( approximately 360-608 mbsf) is dominated by clayey silt and the uppermost section (0-360 mbsf) is dominated by silty clay.
Language:
English
Genre:
Serial
Rights:
URL:
Coverage: Geographic coordinates: North:28.0600 West:-89.0800 East:
-89.0100 South:28.0500
Keywords: Oceanography; Applied geophysics; Atlantic Ocean; boreholes; clastic sediments; clay; continental margin; cores; drilling; electrical methods; Expedition 308; gamma-ray spectra; geophysical methods; geophysical profiles; geophysical surveys; grain size; Gulf of Mexico; Integrated Ocean Drilling Program; IODP Site U1322; IODP Site U1324; marine drilling; marine sediments; North Atlantic; north-central Gulf of Mexico; resistivity; sand; sediments; seismic methods; seismic profiles; seismic stratigraphy; silt; size distribution; spatial variations; spectra; surveys; Ursa Basin; well logs;
.