Proc. IODP, 320/321, Data report: raw and normalized elemental data along the Site U1338 splice from X-ray fluorescence scanning

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Chapter contents Abstract Introduction X-ray fluorescence analytical technique Data acquisition methods Data reduction methods for later calibration: normalized median-scaled method Sample scaling Normalizing sample composition to 100% Example calibration of data: BaSO₄ Results and discussion Conclusions Acknowledgments References Figures F1. Site map. F2. Raw sum of XRF-estimated sedimentary components. F3. XRF scans. F4. CaCO₃ data. F5. BaSO₄ and Ba data. F6. CaCO₃% and SiO₂%. F7. TiO₂% and SiO₂%. Tables T1. Raw XRF scan peak area data. T2. NMS data. PDF file			Previous \| Next doi:10.2204/iodp.proc.320321.203.2012 Data report: raw and normalized elemental data along the Site U1338 splice from X-ray fluorescence scanning¹ Mitchell Lyle,² Annette Olivarez Lyle,² Thomas Gorgas,³ Ann Holbourn,⁴ Thomas Westerhold,⁵Ed Hathorne,⁶ Katsunori Kimoto,⁷ and Shinya Yamamoto⁸ Abstract We used X-ray fluorescence (XRF) scanning on Site U1338 sediments from Integrated Ocean Drilling Program Expedition 321 to measure sediment geochemical compositions at 2.5 cm resolution for the 450 m of the Site U1338 spliced sediment column. This spatial resolution is equivalent to ~2 k.y. age sampling in the 0–5 Ma section and ~1 k.y. resolution from 5 to 17 Ma. Here we report the data and describe data acquisition conditions to measure Al, Si, K, Ca, Ti, Fe, Mn, and Ba in the solid phase. We also describe a method to convert the data from volume-based raw XRF scan data to a normalized mass measurement ready for calibration by other geochemical methods. Both the raw and normalized data are reported along the Site U1338 splice. ¹ Lyle, M., Olivarez Lyle, A., Gorgas, T., Holbourn, A., Westerhold, T., Hathorne, E., Kimoto, K., and Yamamoto, S., 2012. Data report: raw and normalized elemental data along the Site U1338 splice from X-ray fluorescence scanning. In Pälike, H., Lyle, M., Nishi, H., Raffi, I., Gamage, K., Klaus, A., and the Expedition 320/321 Scientists, Proc. IODP, 320/321: Tokyo (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/iodp.proc.320321.203.2012 ² Department of Oceanography, Texas A&M University, College Station TX 77843, USA. Correspondence author: mlyle@ocean.tamu.edu ³ Integrated Ocean Drilling Program, Texas A&M University, 1000 Discovery Drive, College Station TX 77845-9547, USA. ⁴ Institut für Geowissenschaften, Christian-Albrechts-Universität zu Kiel, Olhausenstrasse 40, 24098 Kiel, Germany. ⁵ Center for Marine Environmental Sciences (MARUM), University of Bremen, PO Box 330440, 28334 Bremen, Germany. ⁶ IFM-GEOMAR, Leibniz Institute of Marine Sciences at University of Kiel, Wischhofstrasse 1-3, D-24148 Kiel, Germany. ⁷ Institute of Observational Research for Global Change (IORGC), Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-Cho, Yokosuka 237-0061, Japan. ⁸ Institute of Low Temperature Science, Hokkaido University, N19W8, Kita-Ku, Sapporo 060-0819, Japan. Initial receipt: 2 September 2011 Acceptance: 1 November 2011 Publication: 29 February 2012 MS 320321-203 Top of page \| Previous \| Next