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标题：X-ray computerized tomography analysis and density estimation using a sediment core from the Challenger Mound area in the Porcupine Seabight, off Western Ireland
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作者：Akiko Tanaka ; Tsukasa Nakano ; Ken Ikehara 等
期刊名称：Earth, Planets and Space
电子版ISSN：1880-5981
出版年度：2011
卷号：63
期号：2
页码：103-110
DOI：10.5047/eps.2010.12.006
出版社：Springer Verlag
摘要：X-ray computerized tomography (CT) analysis was used to image a half-round core sample of 50 cm long recovered from near Challenger Mound in the Porcupine Seabight, off western Ireland during the Integrated Ocean Drilling Program Expedition 307.This allowed three-dimensional examination of complex shapes of pebbles and ice-rafted debris in sedimentary sequences.X-ray CT analysis was also used for the determination of physical properties; a comparison between bulk density by the mass-volume method and estimated density based on linear attenuation coefficients of X-ray CT images provides insight into a spatially detailed and precise map of density variation in samples through the distribution of CT numbers. Key words X-ray CT bulk density sediment core Integrated Ocean Drilling Program (IODP) Expedition 307.
关键词：X-ray CT ;bulk density ;sediment core ;Integrated Ocean Drilling Program (IODP) ;Expedition 307