☆ 4.4 Article

X-ray computerized tomography analysis and density estimation using a sediment core from the Challenger Mound area in the Porcupine Seabight, off Western Ireland

EARTH PLANETS AND SPACE (2011)

期刊

EARTH PLANETS AND SPACE

卷 63, 期 2, 页码 103-110

出版社

TERRA SCIENTIFIC PUBL CO

DOI: 10.5047/eps.2010.12.006

关键词

X-ray CT; bulk density; sediment core; Integrated Ocean Drilling Program (IODP); Expedition 307

类别

Geosciences, Multidisciplinary

向作者/读者索取更多资源

Protocol

Reagent

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.

作者

我是这篇论文的作者

点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.4

评分不足

次要评分

新颖性

-

重要性

-

科学严谨性

-

评价这篇论文

推荐

Article Geography, Physical

Nannofossil palaeoecology of Lower Miocene sapropels from IODP Expedition 359, the Maldives

Jeremy R. Young, Odysseas A. Archontikis, Xiang Su, Santi D. Pratiwi

Summary: The formation of sapropel is mainly driven by changes in bottom water ventilation rather than surface water productivity.

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY (2021)

添加到收藏夹

Article Geochemistry & Geophysics

High resolution inclination records from the Gulf of Alaska, IODP Expedition 341 Sites U1418 and U1419

Julie Heggdal Velle, Maureen H. Walczak, Brendan Reilly, Guillaume St-Onge, Joseph S. Stoner, Stewart Fallon, Alan C. Mix, Christina Belanger, Matthias Forwick

Summary: The study investigated high-resolution paleomagnetic records of sediments from the south Alaska continental slope, suggesting that Site U1419 provides the ability to study paleomagnetic secular variation. Due to various factors, sediments at this site are not suitable for paleointensity studies, but the inclination record is deemed reliable to some extent and offers insights into regional geomagnetic variations.

GEOPHYSICAL JOURNAL INTERNATIONAL (2022)

添加到收藏夹

Article Geosciences, Multidisciplinary

West Antarctic Ice Sheet Dynamics in the Amundsen Sea Sector since the Late Miocene-Tying IODP Expedition 379 Results to Seismic Data

Johanna Gille-Petzoldt, Karsten Gohl, Gabriele Uenzelmann-Neben, Jens Gruetzner, Johann P. Klages

Summary: This study examines the dynamics of the West Antarctic Ice Sheet during past warm periods by analyzing geological records from the Amundsen Sea sector of Antarctica. The findings suggest that there were extended warm periods occurring almost simultaneously in different locations, such as the Ross Sea and the Bellingshausen Sea.

FRONTIERS IN EARTH SCIENCE (2022)

添加到收藏夹

Article Geosciences, Multidisciplinary

Episodicity of structural flow in an active subduction system, new insights from mud volcano's carbonate veins - Scientific Ocean drilling expedition IODP 366

Emanuelle Frery, Patricia Fryer, Walter Kurz, Ai Nguyen, Olivier Sissmann, Tonguc Uysal, J. Zhao

Summary: This study aims to understand the structural events and episodes of fluid flow in calcium carbonate precipitation in Mariana forearc serpentine mud volcanoes. By analyzing calcium carbonate veins, the research reveals the origin, timing, and mechanisms of precipitations, from pre-convergence events to the episodic building of the mud volcanoes.

MARINE GEOLOGY (2021)

添加到收藏夹

Article Geosciences, Multidisciplinary

A 1.5 Ma Marine Record of Volcanic Activity and Associated Landslides Offshore Martinique (Lesser Antilles): Sites U1397 and U1399 of IODP 340 Expedition

Benoit Villemant, Anne Le Friant, Benoit Caron, Giulia Del Manzo, Sara Lafuerza, Laurent Emmanuel, Osamu Ishizuka, Herve Guyard, Nathalie Labourdette, Agnes Michel, Samia Hidalgo

Summary: The products of eruptive and mass-wasting processes in island arc volcanoes are better preserved in marine deposits. The study of two drilled cores from IODP Expedition 340 reveals the volcanic history of Martinique and shows that correlations between landslides or magmatic activity and sea level changes are not consistent.

FRONTIERS IN EARTH SCIENCE (2022)

添加到收藏夹

Article Engineering, Marine

Design and Experimental Study of Core Bit for Hard Rock Drilling in Deep-Sea

Xingchen Li, Liang Xiong, Wenwei Xie, Ke Gao, Yutao Shao, Yunlong Chen, Yanjiang Yu, Beibei Kou, Qiuping Lu, Jing Zeng, Haoyu Yu

Summary: The hard rock stratum in deep-sea drilling negatively impacts efficiency and increases costs. Three different core bits, namely roller bit, diamond bit, and bionic bit, were designed and tested. Results showed that the roller bit provided stable drilling, low torque, and high efficiency in hard rock stratum. The new formula diamond bit demonstrated good adaptability to changing hard rock strata, with an average rate of penetration of 4.4 m/h and a bit life of 137.75 m. The bionic bit achieved a 100% core recovery rate, with an average rate of penetration of 1.35 m/h and a maximum rate of 1.88 m/h. The design and experiment of these three drill bits effectively solved the technical problem of efficient drilling in deep-sea hard-rock stratum.

JOURNAL OF MARINE SCIENCE AND ENGINEERING (2023)

添加到收藏夹

Article Geochemistry & Geophysics

Chicxulub impact structure, IODP-ICDP Expedition 364 drill core: Geochemistry of the granite basement

Jean-Guillaume Feignon, Sietze J. de Graaff, Ludovic Ferriere, Pim Kaskes, Thomas Dehais, Steven Goderis, Philippe Claeys, Christian Koeberl

Summary: The study presents detailed geochemical investigations of 41 granitoid samples recovered from Hole M0077A, providing insights into the composition and formation processes of these rocks. The results support the theory that the granite unit intruded the Maya block during the Paleozoic era and highlight the impact of two distinct hydrothermal alteration events on the granite chemistry.

METEORITICS & PLANETARY SCIENCE (2021)

添加到收藏夹

Article Multidisciplinary Sciences

First evidence of industrial fly-ash in an Antarctic ice core

E. R. Thomas, D. R. Tetzner, S. L. Roberts, S. D. Turner, N. L. Rose

Summary: This study provides the first evidence of the deposition of spheroidal carbonaceous particles (SCPs), which are indelible markers of industrialization, in Antarctic ice thousands of kilometers away from potential sources. The earliest observed particle was deposited in an ice layer from 1936 CE. Although deposition fluxes are low, individual SCPs were found to have originated from coal combustion based on chemical analysis.

SCIENTIFIC REPORTS (2023)

添加到收藏夹

Article Geosciences, Multidisciplinary

First Record of Oceanic Anoxic Event 1d at Southern High Latitudes: Sedimentary and Geochemical Evidence From International Ocean Discovery Program Expedition 369

Qingchao Fan, Zhaokai Xu, Kenneth G. MacLeod, Hans-Jurgen Brumsack, Tiegang Li, Fengming Chang, Shiming Wan, Laurent Riquier, Delong Fu, Zhendong Luan, Baichuan Duan, Hongjin Chen, Wei Wang, Dhongil Lim

Summary: This study presents the first detailed sedimentary and geochemical record of the OAE 1d at southern high latitudes, linking it to the Central Kerguelen large igneous province volcanism. Increased continental runoff from southwestern Australia weakened bottom-water oxygenation and enhanced organic matter burial in the southeastern proto-Indian Ocean during OAE 1d.

GEOPHYSICAL RESEARCH LETTERS (2022)

添加到收藏夹

Article Computer Science, Interdisciplinary Applications

Core-CT: A MATLAB application for the quantitative analysis of sediment and coral cores from X-ray computed tomography (CT)

Yu Ting Yan, Stephen Chua, Thomas M. DeCarlo, Philipp Kempf, Kyle M. Morgan, Adam D. Switzer

Summary: X-ray computed tomography (CT) is a non-destructive imaging technique that provides three-dimensional visualization and high-resolution quantitative data by deriving CT numbers from X-ray energy, effective atomic number, and material density. CT numbers can be used to identify facies changes within sediment cores and quantify skeletal linear extension rates and internal biological erosion from coral cores, making it versatile for geoscience research.

COMPUTERS & GEOSCIENCES (2021)

添加到收藏夹

Article Geology

Integrated calcareous nannofossils and planktonic foraminifera biostratigraphy as tool to date serpen-tinite mud production for Fantangis?a seamount on the Mariana forearc (IODP Expedition 366)

Arianna V. Del Gaudio, Werner E. Piller, Gerald Auer, Walter Kurz

Summary: The Izu-Bonin-Mariana arc-system in the NW Pacific is an intensively studied convergent margin that contains active serpentinite mud volcanism. International Ocean Discovery Program conducted drilling expeditions to obtain samples from three serpentinite mud volcanoes in the Mariana region, providing valuable information on the latest phase of seamount activity and changes in sedimentation rates.

NEWSLETTERS ON STRATIGRAPHY (2022)

添加到收藏夹

Article Geochemistry & Geophysics

Eocene relative paleointensity of the geomagnetic field from Integrated Ocean Drilling Program Site U1403 and U1408 sediments in the northwest Atlantic

Yuhji Yamamoto, Hiroto Fukami, Peter C. Lippert

Summary: This study provides new insights into relative paleointensity (RPI) variations by conducting rock magnetic and paleomagnetic measurements on Eocene marine sediments. The results show that RPI fluctuates within each chron and is influenced by inhomogeneous rock magnetic properties. The study also establishes a stacked RPI curve for Chron 18 and compares it with records from the equatorial Pacific, revealing similar characteristics.

EARTH AND PLANETARY SCIENCE LETTERS (2022)

添加到收藏夹

Article Geosciences, Multidisciplinary

High-resolution seismic imaging of shallow structure at proposed IODP drilling sites, Kane oceanic core complex, Mid-Atlantic Ridge

Wenxin Xie, Huizhe Di, Maochuan Zhang, Min Xu

Summary: This study proposes drilling two 500-meter-deep holes at the Kane oceanic core complex (OCC) to validate lithological interpretation derived from seismic structures. The research utilized a suite of techniques, including seismic imaging, to enhance the understanding of shallow subseafloor structures. The results provide valuable insights into the composition and alteration processes of the OCC, which can inform future scientific ocean drilling projects in the region.

SOLID EARTH SCIENCES (2023)

添加到收藏夹

Article Geochemistry & Geophysics

Secondary controls on the stratigraphic signature of the carbon isotope excursion marking the Paleocene-Eocene thermal maximum at Ocean Drilling Program Site 1135

Brittany N. Hupp, D. Clay Kelly, Reinhard Kozdon, Ian J. Orland, John W. Valley

Summary: A study has found that the magnitude of the negative carbon isotope excursion (CIE) during the Paleocene Eocene thermal maximum (PETM) is smaller in marine records than in terrestrial records. This difference is attributed to secondary mechanisms that attenuate or amplify the CIE magnitude in marine and terrestrial records. By comparing different analytical techniques, the study reveals the effects of carbonate diagenesis and sediment mixing on the stratigraphic signature of the CIE.

CHEMICAL GEOLOGY (2023)

添加到收藏夹

Article Energy & Fuels

Current states of well-logging evaluation of deep-sea gas hydrate-bearing sediments by the international scientific ocean drilling (DSDP/ODP/IODP) programs

Zhong Guangfa, Zhang Di, Zhao Luanxiao

Summary: Since the first deep-sea gas hydrate-bearing sediments were drilled in the Blake Ridge in 1970, gas hydrates have been discovered at 53 drill sites in continental margins of global oceans through international scientific ocean drilling programs. The accumulation of massive geophysical well-logging data has provided critical information for understanding gas hydrate properties. Different well-logging evaluation methods have been proposed to estimate gas hydrate saturation in sediments, but the distribution of gas hydrates is highly heterogeneous.

NATURAL GAS INDUSTRY B (2021)

添加到收藏夹

Article Geosciences, Multidisciplinary

Morpho-sedimentary features and sediment dispersal systems of the southwest end of the Ryukyu Trench: a source-to-sink approach

Kan-Hsi Hsiung, Toshiya Kanamatsu, Ken Ikehara, Kazuya Shiraishi, Chorn-Shern Horng, Kazuko Usami

GEO-MARINE LETTERS (2017)

添加到收藏夹

Article Geosciences, Multidisciplinary

Determining sources of deep-sea mud by organic matter signatures in the Sunda trench and Aceh basin off Sumatra

Akiko Omura, Ken Ikehara, Kohsaku Arai, Udrekh

GEO-MARINE LETTERS (2017)

添加到收藏夹

Article Geochemistry & Geophysics

High-resolution chronology of sediment below CCD based on Holocene paleomagnetic secular variations in the Tohoku-oki earthquake rupture zone

Toshiya Kanamatsu, Kazuko Usami, Cecilia M. G. McHugh, Ken Ikehara

GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS (2017)

添加到收藏夹

Article Geography, Physical

Millennial-scale changes of surface and bottom water conditions in the northwestern Pacific during the last deglaciation

Sunghan Kim, Boo-Keun Khim, Ken Ikehara, Takuya Itaki, Akihiko Shibahara, Masanobu Yamamoto

GLOBAL AND PLANETARY CHANGE (2017)

添加到收藏夹

Article Geography, Physical

Correlation between faunal transitions of benthic foraminifera and ballasting of particulate organic carbon by siliceous plankton during the Holocene off San-in district, southwestern Japan

Hiroyuki Takata, Takuya Itaki, Ken Ikehara, Boo-Keun Khim

HOLOCENE (2018)

添加到收藏夹

Article Geosciences, Multidisciplinary

Benthic foraminiferal evidence of deep-sea sediment transport by the 2011 Tohoku-oki earthquake and tsunami

Kazuko Usami, Ken Ikehara, Robert G. Jenkins, Juichiro Ashi

MARINE GEOLOGY (2017)

添加到收藏夹

Article Oceanography

Multidecadal, centennial, and millennial variability in sardine and anchovy abundances in the western North Pacific and climate-fish linkages during the late Holocene

Michinobu Kuwae, Masanobu Yamamoto, Takuya Sagawa, Ken Ikehara, Tomohisa Irino, Keiji Takemura, Hidetaka Takeoka, Takashige Sugimoto

PROGRESS IN OCEANOGRAPHY (2017)

添加到收藏夹

Article Geography, Physical

Variation in subsurface water temperature and its link to the Kuroshio Current in the Okinawa Trough during the last 38.5 kyr

Yoshimi Kubota, Nozomi Suzuki, Katsunori Kimoto, Masao Uchida, Takuya Itaki, Ken Ikehara, Ryoung Ah Kim, Kyung Eun Lee

QUATERNARY INTERNATIONAL (2017)

添加到收藏夹

Article Geography, Physical

Three important Holocene tephras off the Pacific coast of the Tohoku region, Northeast Japan: Implications for correlating onshore and offshore event deposits

Ken Ikehara, Kazuko Usami, Toshiya Kanamatsu, Tohru Danhara, Tohru Yamashita

QUATERNARY INTERNATIONAL (2017)

添加到收藏夹

Article Environmental Sciences

Statistical Analysis of the Spatial Distribution of Multi-Elements in an Island Arc Region: Complicating Factors and Transfer by Water Currents

Atsuyuki Ohta, Noboru Imai, Yoshiko Tachibana, Ken Ikehara

WATER (2017)

添加到收藏夹

Article Geography, Physical

Mid-Holocene forcing of the Tsushima Warm Current to the coastal environments in southwestern Japan with a view to foraminiferal faunas

Hiroyuki Takata, Naohisa Nishida, Ken Ikehara, Kota Katsuki, Boo-Keun Khim

QUATERNARY INTERNATIONAL (2018)

添加到收藏夹

Article Geosciences, Multidisciplinary

Construction of perfectly continuous records of physical properties for dark-light sediment sequences collected from the Japan Sea during Integrated Ocean Drilling Program Expedition 346 and their potential utilities as paleoceanographic studies

Tomohisa Irino, Ryuji Tada, Ken Ikehara, Takuya Sagawa, Akinori Karasuda, Shunsuke Kurokawa, Arisa Seki, Song Lu

PROGRESS IN EARTH AND PLANETARY SCIENCE (2018)

添加到收藏夹

Article Geosciences, Multidisciplinary

High-resolution and high-precision correlation of dark and light layers in the Quaternary hemipelagic sediments of the Japan Sea recovered during IODP Expedition 346

Ryuji Tada, Tomohisa Irino, Ken Ikehara, Akinori Karasuda, Saiko Sugisaki, Chuang Xuan, Takuya Sagawa, Takuya Itaki, Yoshimi Kubota, Song Lu, Arisa Seki, Richard W. Murray, Carlos Alvarez-Zarikian, William T. Anderson, Maria-Angela Bassetti, Bobbi J. Brace, Steven C. Clemens, Marcio H. da Costa Gurgel, Gerald R. Dickens, Ann G. Dunlea, Stephen J. Gallagher, Liviu Giosan, Andrew C. G. Henderson, Ann E. Holbourn, Christopher W. Kinsley, Gwang Soo Lee, Kyung Eun Lee, Johanna Lofi, Christina I. C. D. Lopes, Mariem Saavedra-Pellitero, Larry C. Peterson, Raj K. Singh, Samuel Toucanne, Shiming Wan, Hongbo Zheng, Martin Ziegler

PROGRESS IN EARTH AND PLANETARY SCIENCE (2018)

添加到收藏夹

Article Geosciences, Multidisciplinary

Integrated tephrostratigraphy and stable isotope stratigraphy in the Japan Sea and East China Sea using IODP Sites U1426, U1427, and U1429, Expedition 346 Asian Monsoon

Takuya Sagawa, Yoshitaka Nagahashi, Yasufumi Satoguchi, Ann Holbourn, Takuya Itaki, Stephen J. Gallagher, Mariem Saavedra-Pellitero, Ken Ikehara, Tomohisa Irino, Ryuji Tada

PROGRESS IN EARTH AND PLANETARY SCIENCE (2018)

添加到收藏夹

Article Environmental Sciences

InSAR Time Series Analysis of L-Band Data for Understanding Tropical Peatland Degradation and Restoration

Zhiwei Zhou, Zhenhong Li, Susan Waldron, Akiko Tanaka

REMOTE SENSING (2019)

添加到收藏夹

暂无数据

© Peeref 2019-2024. All rights reserved.