Si, Al, Fe, Ca, and K systematics of volcaniclastic sediments from selected cores of Hole U1347A, IODP Expediton 324

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doi: 10.2204/iodp.proc.324.204.2013
Author(s): Hermann, Sandra; Stroncik, Nicole A.
Integrated Ocean Drilling Program, Expedition 324 Scientists, College Station, TX
Author Affiliation(s): Primary:
Texas A&M University, Integrated Ocean Drilling Program, College Station, TX, United States
National Museum of Nature and Science, Japan
Lamont-Doherty Earth Observatory, United States
University of Hannover, Germany
Pusan national University, South Korea
Université Pierre et Marie Curie, France
Université Paul Sabatier, France
University of Hawaii at Manoa, United States
University of Rhode Island, United States
Eidgenössische Technische Hochschule Zürich, Switzerland
Leibniz-Institute of Marine Sciences, Germany
Tohoku University, Japan
Japan Agency of Marine-Earth Science and Technology, Japan
Korea Institute of Geosciences and Mineral Resources, South Korea
Oregon State University, United States
Ocean University of China, China
University of College London, United Kingdom
Ibaraki University, Japan
Kyoto University, Japan
Queensland University of Technology, Australia
University of Miami, United States
Doshisha University, Japan
University of Oxford, United Kingdom
Woods Hole Oceanographic Institution, United States
Open University, United Kingdom
Volume Title: Proceedings of the Integrated Ocean Drilling Program; Shatsky Rise Formation; Expedition 324 of the riserless drilling platform, Yohohama, Japan to Townsville, Australia, Sites U1346-U1350, 4 September-3 November 2009
Volume Author(s): Sager, William W.; Sano, Takashi; Geldmacher, Jorg; Iturrino, Gerardo; Evans, Helen; Almeev, Renat; Ando, Atsushi; Carvallo, Claire; Delacour, Adélie; Greene, Andrew R.; Harris, Amber C.; Herrmann, Sandra; Heydolph, Ken; Hirano, Naoto; Ishikawa, Akira; Kang, Moo-Hee; Koppers, Anthony A. P.; Li Sanzhong; Littler, Kate; Mahoney, John; Matsubara, Noritaka; Miyoshi, Masaya; Murphy, David T.; Natland, James H.; Ooga, Masahiro; Prytulak, Julie; Shimizu, Kenji; Tominaga, Masako; Widdowson, Mike; Woodard, Stella C.
Source: Proceedings of the Integrated Ocean Drilling Program; Shatsky Rise Formation; Expedition 324 of the riserless drilling platform, Yohohama, Japan to Townsville, Australia, Sites U1346-U1350, 4 September-3 November 2009, William W. Sager, Takashi Sano, Jorg Geldmacher, Gerardo Iturrino, Helen Evans, Renat Almeev, Atsushi Ando, Claire Carvallo, Adélie Delacour, Andrew R. Greene, Amber C. Harris, Sandra Herrmann, Ken Heydolph, Naoto Hirano, Akira Ishikawa, Moo-Hee Kang, Anthony A. P. Koppers, Li Sanzhong, Kate Littler, John Mahoney, Noritaka Matsubara, Masaya Miyoshi, David T. Murphy, James H. Natland, Masahiro Ooga, Julie Prytulak, Kenji Shimizu, Masako Tominaga, Mike Widdowson and Stella C. Woodard; Integrated Ocean Drilling Program, Expedition 324 Scientists, College Station, TX. Proceedings of the Integrated Ocean Drilling Program (Online), Vol.324, 19p. Publisher: IODP Management International, Washington, DC, United States. ISSN: 1930-1014
Note: In English. Includes appendices. 5 refs.; illus., incl. sketch map
Summary: We analyzed the whole-rock Si, Al, Fe, Ca, K, Cl, and Mn content of volcaniclastic sediment cores recovered during Integrated Ocean Drilling Program Expedition 324 in Hole U1347A. Hole U1347A, located at the eastern flank of Tamu Massif, the oldest of the three volcanic edifices forming Shatsky Rise, a large igneous plateau in the western Pacific, was drilled into early Cretaceous sediments and volcanic basement. The analyzed cores represent the mainly volcaniclastic sediments lying on top of the basaltic basement, which starts at roughly 156.7 meters below seafloor. Whole-rock Si, Al, Fe, Ca, K, Cl, and Mn were obtained from a stratigraphic depth interval covering about 60 m using an Avaatech X-ray fluorescence core scanner. Data interpretation has been based on the normalization of individual element count rates to Ca. In the uppermost 110 m depth interval, increases in the Al/Ca, Fe/Ca, Mn/Ca, K/Ca, and Cl/Ca ratios can be observed. Below this depth, no clear element depth correlation is evident and the average element ratios stay relatively constant through- out the remaining depth interval. However, rhythmic patterns can be observed throughout the entire investigated core material, characterized by positive co-variations of Si/Ca, Al/Ca, Fe/Ca, Mn/ Ca, K/Ca, and Cl/Ca with variable amplitudes and peak widths. The geochemical downhole trends of increasing Si/Ca, Al/Ca, Fe/ Ca, Mn/Ca, K/Ca, and Cl/Ca clearly reflect the changes in the principal lithology from marine limestone with intercalated chert to volcaniclastic sediment. The observed rhythmic patterns of Si/Ca, Al/Ca, Fe/Ca, Mn/Ca, K/Ca, and Cl/Ca correlate with existing variations in the ratio of volcaniclastic material to carbonaceous material.
Year of Publication: 2013
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 02 Geochemistry; 12 Stratigraphy, Historical Geology and Paleoecology; Alkali metals; Alkaline earth metals; Aluminum; Calcium; Chemical ratios; Chemostratigraphy; Cores; Cretaceous; Expedition 324; IODP Site U1347; Integrated Ocean Drilling Program; Iron; Lower Cretaceous; Marine sediments; Mesozoic; Metals; North Pacific; Northwest Pacific; Pacific Ocean; Potassium; Sediments; Shatsky Rise; Silicon; Spectra; West Pacific; X-ray fluorescence spectra
Coordinates: N323029 N323029 E1591405 E1591405
Record ID: 2013083986
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