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Fulthorpe, Craig S.; Hoyanagi, Koichi; Blum, Peter; Guérin, Gilles; Slagle, Angela L.; Blair, Stacie A; Browne, G. H.; Carter, Robert M.; Ciobanu, Maria-Christina; Claypool, George E.; Crundwell, Martin P.; Dinarès-Turell, J.; Xuan, Dong; George, Simon C.; Hepp, Daniel A.; Jaeger, John; Kawagata, Shungo; Kemp, David B.; Kim, Young-Gyun; Kominz, Michelle A.; Lever, Helen; Lipp, Julius S.; Marsaglia, Kathleen M.; McHugh, C. M.; Murakoshi, Naomi; Ohi, Takeshi; Pea, Laura; Richaud, Mathieu; Suto, Itsuki; Tanabe, Susumu; Tinto, K. J.; Uramoto, Go-Ichiro; Yoshimura, Toshihiro

doi:10.2204/iodp.proc.317.2011

Cited by 203 publications

(6 citation statements)

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“…The presence of microaggregates in sediments from the Canterbury Basin off New Zealand (Fig. 5A-5B) can be explained by these processes because of the high primary production in surface seawater in the continental margin environment , and relative sea-level changes and sediment supply from the hinterland (Lu et al 2005;Fulthorpe et al 2011). In contrast, microaggregates (Figs.…”

Section: Implications For Clay Microstructuresmentioning

confidence: 99%

“…Eight continental margin sediment samples and seven pelagic sediment samples used in this study were collected during the Integrated Ocean Drilling Program (IODP) Expeditions 317 (Fulthorpe et al 2011) and329 (D'Hondt et al 2011) (Table!3 IODP Expedition 317 recovered continental margin sediments from the Canterbury Basin, off New Zealand. This study used continental shelf sediments recovered from Site U1351 and continental slope sediments recovered from Site U1352.…”

Section: Sample Descriptionmentioning

confidence: 99%

“…Porosities calculated by image analysis of resin-embedded samples were then compared with the available porosity data determined using the moisture and density (MAD) method at IODP Expeditions 317 and 329 (Fulthorpe et al 2011;D'Hondt et al 2011) (Fig.!8). The porosities obtained by image analysis agreed well with the MAD porosities.…”

Section: Calculation Of Porosity Of Resin-embedded Sediment Using Imamentioning

confidence: 99%

“…8. Plots comparing the porosity data obtained by the image processes used in this study and onboard measurements based on the moisture and density (MAD) method (Fulthorpe et al 2011;D'Hondt et al 2011). Box and whisker plots for the data represent mean and associated errors (n = 10).…”

Section: Uramoto Et Almentioning

confidence: 99%

“…The whiskers represent the allowable data range (1.5 times the interquartile range). The whiskers for the MAD data represent measurement error (Fulthorpe et al 2011;D'Hondt et al 2011). mentary environment in SPG differs from the continental margin setting in many aspects (i.e., sedimentation rate and primary production of surface seawater is extremely low) (D'Hondt et al 2011), and sediment grains are composed mainly of clay. The sedimentary environment as well as the grain size and/or clay mineralogy might contribute to the frequent formation of microaggregates in this region.…”

Section: Uramoto Et Almentioning

confidence: 99%

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An improved sample preparation method for imaging microstructures of fine‐grained marine sediment using microfocus X‐ray computed tomography and scanning electron microscopy

Uramoto

Morono

Uematsu³

et al. 2014

Limnology & Ocean Methods

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Marine sediments are composed of various mineral species and are characterized by micro‐scale grain fabric. The arrangements and interactions of component particles place critical constraints on the physical, chemical, and biological processes that occur in subseafloor environments. However, the observation of nearly intact microstructures is difficult, especially in soft, muddy sediments because of their high water content and the presence of organic molecules. In this study, a modified version of the resin‐embedding method generally used for biological samples was applied to marine sediment sample preparation. The new method was compared with the conventional t‐butyl alcohol freeze‐drying method using microfocus X‐ray computed tomography (µXCT) and scanning electron microscopy (SEM). The µXCT and SEM results showed that all t‐butyl alcohol freeze‐dried sediment samples contained microstructural disturbances (e.g., cracks). In contrast, no cracks were observed in the samples prepared using the new resin‐embedding method, and the microstructural arrangement of the sediment particles were clearly visible. In addition, the porosity visible from SEM images of the resin‐embedded samples was similar to that measured using the moisture and density method, providing additional evidence that the microstructures of the resin‐embedded samples were well preserved. The resin‐embedding method allowed observation of the limited contact of the fine particles in clayey sediments, the clay microaggregates throughout the continental margin to pelagic sediments, and the presence of organic materials in environmental sediments. This modified biological resin‐embedding method is suitable for the detailed observation and characterization of fine‐grained marine sediment microstructure.

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Section: Implications For Clay Microstructuresmentioning

confidence: 99%

Section: Sample Descriptionmentioning

confidence: 99%

Section: Calculation Of Porosity Of Resin-embedded Sediment Using Imamentioning

confidence: 99%

Section: Uramoto Et Almentioning

confidence: 99%

Section: Uramoto Et Almentioning

confidence: 99%

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