Bulk sediment potassium oxide concentrations from IODP Expedition 329 to the South Pacific Gyre

Abstract: "The Integrated Ocean Drilling Program (IODP) Expedition 329 to the South Pacific Gyre on board the D/V Joides Resolution (Chief scientists Steven D’Hondt and Fumio Inagaki) took place in Fall 2010 and had as one of its major objectives to document the habitats, metabolic activities, genetic composition, and biomass of microbial communities in subseafloor sediment with very low total activity. To meet this objective the entire sediment column at seven sites (U1365 through U1371) were cored along two transects in the region of the South Pacific Gyre.
We present here potassium oxide concentration measurements in bulk sediment samples from IODP Expedition 329. Samples were collected during the expedition by Prof. Richard W. Murray (Boston University) and sample preparation and analysis was performed by Dr. Ann G. Dunlea in the Analytical Geochemistry Facilities at Boston University.

Other Description: Dunlea, A. G., Murray, R. W., Sauvage, J., Spivack, A. J., Harris, R. N., & D'Hondt, S., (2015), "Dust, volcanic ash, and the evolution of the South Pacific Gyre through the Cenozoic". Paleoceanography, 30(8): 1078-1099

Dunlea, A. G., Murray, R. W., Sauvage, J., Pockalny, R. A., Spivack, A. J., Harris, R. N., & D'Hondt, S., (2015), "Cobalt‐based age models of pelagic clay in the South Pacific Gyre". Geochemistry, Geophysics, Geosystems, 16(8): 2694-2710

摘要：2010年秋季，搭载“乔迪斯·决心号”大洋钻探船（D/V Joides Resolution）的综合大洋钻探计划（Integrated Ocean Drilling Program, IODP）329航次前往南太平洋环流区执行科考任务，首席科学家为史蒂文·德翁特（Steven D’Hondt）与稻垣文雄（Fumio Inagaki）。本航次的核心目标之一，是阐明总代谢活性极低的海底以下沉积物中微生物群落的栖息环境、代谢活性、遗传组成与生物量。为达成该目标，研究团队在南太平洋环流区的两条断面上布设7个站位（U1365至U1371），对各站位的完整沉积物柱进行了取芯。
本文报道了来自IODP 329航次的全岩沉积物样品（bulk sediment samples）的氧化钾浓度测定数据。本航次期间，理查德·W·默里（Richard W. Murray，波士顿大学）教授完成了样品采集工作，样品制备与分析则由安·G·邓利亚（Ann G. Dunlea）博士在波士顿大学分析地球化学实验室完成。

其他说明：
1. Dunlea, A. G., Murray, R. W., Sauvage, J., Spivack, A. J., Harris, R. N., & D'Hondt, S. (2015), "新生代以来粉尘、火山灰与南太平洋环流区的演化", 《古海洋学》（Paleoceanography）, 30(8): 1078-1099
2. Dunlea, A. G., Murray, R. W., Sauvage, J., Pockalny, R. A., Spivack, A. J., Harris, R. N., & D'Hondt, S. (2015), "南太平洋环流区远洋黏土的钴基年代模型", 《地球化学、地球物理学、地球系统》（Geochemistry, Geophysics, Geosystems）, 16(8): 2694-2710