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FullText URL Vaccine_32_A20-8.pdf
Author Mullick, Satarupa| Mandal, Paulami| Mukti Kant Nayak| Ghosh, Souvik| De, Papiya| Rajendran, K.| Bhattacharya, Mihir K.| Mitra, Utpala| Ramamurthy, Thandavarayan| Kobayashi, Nobumichi| Chawla-Sarkar, Mamta|
Keywords Diarrhea Rotavirus India Kolkata G9 strains G2 strains
Published Date 2014-08-11
Publication Title Vaccine
Volume volume32
Issue issuesupplment 1
Publisher Elsevier Science
Start Page A20
End Page A28
ISSN 0264410X
NCID AA10491877
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
File Version publisher
PubMed ID 25091674
DOI 10.1016/j.vaccine.2014.03.018
Web of Science KeyUT 000340977500007
Related Url isVersionOf https://doi.org/10.1016/j.vaccine.2014.03.018
FullText URL Front_Microbiol_7_1250.pdf
Author Ghosh, Raikamal| Sharma, Naresh C.| Halder, Kalpataru| Bhadra, Rupak K.| Chowdhury, Goutam| Pazhani, Gururaja P.| Shinoda, Sumio| Mukhopadhyay, Asish K.| Nair, G. Balakrish| Ramamurthy, Thadavarayan|
Keywords V.cholerae O139 ribotypes CT genotype CTX prophage PFGE
Published Date 2016-08-09
Publication Title frontiers in Microbiology
Volume volume7
Publisher Frontiers Media S.A.
Start Page 1250
ISSN 1664302X
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
File Version publisher
PubMed ID 27555841
DOI 10.3389/fmicb.2016.01250
Web of Science KeyUT 000381079700001
Related Url isVersionOf https://doi.org/10.3389/fmicb.2016.01250
FullText URL Plos_Negl_Trop_Dis_5386.pdf
Author Imamura, Daisuke| Morita, Masatomo| Sekizuka, Tsuyoshi| Mizuno, Tamaki| Takemura, Taichiro| Yamashiro, Tetsu| Chowdhury, Goutam| Pazhani, Gururaja P.| Mukhopadhyay, Asish K.| Ramamurthy, Thandavarayan| Miyoshi, Shin-ichi| Kuroda, Makoto| Shinoda, Sumio| Ohnishi, Makoto|
Note This research is supported by the Japan Initiative for Global Research Network on Infectious Diseases (J-GRID) from Ministry of Education, Culture, Sport, Science & Technology in Japan, and Japan Agency for Medical Research and Development (AMED).|
Published Date 2017-02-13
Publication Title PLOS Neglected Tropical Diseases
Volume volume11
Issue issue2
Publisher PLOS
Start Page e0005386
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
File Version publisher
PubMed ID 28192431
DOI 10.1371/journal.pntd.0005386
Web of Science KeyUT 000396406600020
Related Url isVersionOf https://doi.org/10.1371/journal.pntd.0005386
JaLCDOI 10.18926/AMO/56646
FullText URL 73_2_109.pdf
Author Abe, Makoto| Iwamuro, Masaya| Kawahara, Yoshiro| Kanzaki, Hiromitsu| Kawano, Seiji| Tanaka, Takehiro| Tsumura, Munechika| Makino, Takuma| Noda, Yohei| Marunaka, Hidenori| Nishizaki, Kazunori| Okada, Hiroyuki|
Abstract The efficacy and safety of endoscopic submucosal dissection (ESD) for superficial cancer of the pharynx are still unclear. To identify clinicopathological features of superficial pharyngeal cancer, and the efficacy and safety of ESD, we retrospectively assessed 70 pharyngeal cancers in 59 patients who underwent ESD. Of these patients, 61.0% and 50.8% had a history of esophageal cancer and head and neck cancer, respectively. The median tumor size was 15 mm, and 75.7% of the lesions were located at the piriform sinus. The en bloc resection rate was 94.9%. Treatment-related adverse events occurred in 8 cases, but there was no treatment-related death. The lateral margin was positive for neoplasm in 3 lesions (4.3%) and inconclusive in 27 lesions (38.6%), but no local recurrence was observed. Cervical lymph node metastasis was observed in 6 patients, and was successfully treated by cervical lymph node dissection. The three-year overall survival rate was 91.5% (95%CI: 76.6-97.3%) and the cause-specific survival rate was 97.6% (95%CI: 84.9-99.7%). In conclusion, ESD for superficial pharyngeal cancer was safe and effective. “Resect and watch” is probably a feasible and rational strategy for treatment of patients with superficial pharyngeal cancer.
Keywords endoscopic submucosal dissection superficial cancer pharynx endoscopic resection
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2019-04
Volume volume73
Issue issue2
Publisher Okayama University Medical School
Start Page 109
End Page 115
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2019 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 31015745
FullText URL PhysRevB_97_064425.pdf
Author Horigane, Kazumasa| Fujii, M.| Okabe, H.| Kobayashi, K.| Horie, R.| Ishii, H.| Liao, Y. F.| Kubozono, Y.| Koda, A.| Kadono, R.| Akimitsu, J.|
Note This is an article published by American Physical Society|
Published Date 2018-02-28
Publication Title Physical Review B
Volume volume97
Publisher American Physical Society
Start Page 064425
ISSN 2469-9950
NCID AA11187113
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
File Version publisher
DOI 10.1103/PhysRevB.97.064425
Web of Science KeyUT 000426321000005
Related Url isVersionOf https://doi.org/10.1103/PhysRevB.97.064425
JaLCDOI 10.18926/AMO/56248
FullText URL 72_5_499.pdf
Author Kodama, Yuya| Furumatsu, Takayuki| Maehara, Ami| Ozaki, Toshifumi|
Abstract Cell clusters, or groups of cells sharing a single chondron-like structure, are frequently found in degenerated areas of the osteoarthritic (OA) meniscus. However, little is known about these meniscal clusters in humans. The aim of our study was to determine the composition of the extracellular matrix deposition around cell clusters in human OA menisci. Twenty-six menisci were obtained through total knee arthroplasty from patients with OA knee joints. The specimens were subjected to safranin O staining and immunostaining for Sry-type HMG box 9 (SOX9), type II collagen, and aggrecan. Their signal density after staining was assessed using ImageJ software. Five regions of interest were analyzed within each tissue sample. The SOX9, type II collagen, and aggrecan densities were considerably higher in cluster areas than in intact superficial layers of the meniscus. In addition, a substantial difference was detected between cluster areas and degenerative areas without cell clusters. We demonstrated that cell clusters localized near fissures and clefts showed remarkable uniformity in menisci exposed to a broad range of injuries. In addition, the chondrogenic proteins SOX9, type II collagen, and aggrecan were highly expressed in these tissues.
Keywords cell cluster meniscus osteoarthritis Sry-type HMG box 9 type II collagen
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-10
Volume volume72
Issue issue5
Publisher Okayama University Medical School
Start Page 499
End Page 506
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 30369607
JaLCDOI 10.18926/AMO/56247
FullText URL 72_5_493.pdf
Author Okazaki, Yuki| Furumatsu, Takayuki| Masuda, Shin| Miyazawa, Shinichi| Kodama, Yuya| Kamatsuki, Yusuke| Hino, Tomohito| Okazaki, Yoshiki| Ozaki, Toshifumi|
Abstract Medial meniscus (MM) posterior root tear (PRT) results in joint overloading and degenerative changes in the knee. MM root repair is recommended to prevent subsequent cartilage degeneration following MMPRT. Favorable clinical outcomes have been reported after transtibial pullout repair of MMPRT. However, it is unclear whether pullout repair can cause compositional change in the MM posterior segment. We examined this question in 14 patients who underwent MMPRT pullout repair. Magnetic resonance imaging examinations were performed preoperatively and 3 months postoperatively at 10° knee flexion. The region-of-interest was marked along the MM posterior segment edge. Intra-meniscal signal intensity (IMSI) was expressed as the signal intensity ratio of the repaired MM to the intact lateral meniscus, which was used as a control. MMPRT pullout repair reduced IMSI from 1 to 0.915±0.096 (range, 0.760-1.074) 3 months postoperatively (p=0.006, power=0.90). Meniscal degeneration causes high proton density-weighted imaging signal intensity of the meniscal body. In our study, MMPRT pullout repair reduced IMSI contrary to other tears. This technique may decrease the MM posterior segment signal intensity by restoring the hoop tension mechanism. Measuring IMSI may be useful to assess the effect of MMPRT pullout repair on meniscal healing.
Keywords medial meniscus posterior root tear magnetic resonance imaging signal intensity arthroscopic surgery
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-10
Volume volume72
Issue issue5
Publisher Okayama University Medical School
Start Page 493
End Page 498
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 30369606
FullText URL Jo_ISCP_2018_161.pdf
Author Kato, Sadahisa|
Keywords green infrastructure sustainability urbanization landscape ecology connectivity multi-scale approach
Published Date 2011-08
Publication Title Journal of the 2011 International Symposium on City Planning
Volume volume2011
Publisher Korea Planners Association
Start Page 161
End Page 170
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
File Version author
FullText URL elife_7_30246.pdf
Author Takeda, Tetsuya| Kozai, Toshiya| Yang, Huiran| Ishikuro, Daiki| Seyama, Kaho| Kumagai, Yusuke| Abe, Tadashi| Yamada, Hiroshi| Uchihashi, Takayuki| Ando, Toshio| Takei, Kohji|
Keywords EM HS-AFM amphiphysin biophysics cell biology dynamin human in vitro reconstitution membrane remodeling structural biology
Published Date 2018-01
Publication Title eLife
Volume volume7
Publisher eLife Sciences Publications
Start Page e30246
ISSN 2050-084X
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
File Version publisher
PubMed ID 29357276
DOI 10.7554/eLife.30246
Web of Science KeyUT 000423036500001
Related Url isVersionOf https://doi.org/10.7554/eLife.30246
JaLCDOI 10.18926/AMO/56178
FullText URL 72_4_401.pdf
Author Wada, Nozomu| Ikeda, Fusao| Mori, Chizuru| Takaguchi, Koichi| Fujioka, Shin-ichi| Kobashi, Haruhiko| Morimoto, Yoichi| Kariyama, Kazuya| Sakaguchi, Kosaku| Hashimoto, Noriaki| Moriya, Akio| Kawaguchi, Mitsuhiko| Miyatake, Hirokazu| Hagihara, Hiroaki| Kubota, Junichi| Takayama, Hiroki| Takeuchi, Yasuto| Yasunaka, Tetsuya| Takaki, Akinobu| Iwasaki, Yoshiaki| Okada, Hiroyuki|
Abstract Daclatasvir (DCV) + asunaprevir (ASV) combination therapy has become available for patients with hepatitis C virus (HCV) serogroup 1 infection. We studied the efficacy of this therapy by focusing on the factors associated with sustained virological responses (SVR) including resistance-associated variants (RAVs) and mixed infection of different HCV genotypes. We enrolled 951 HCV serogroup 1-positive patients who received this combination therapy at our hospital or affiliated hospitals. The presence of RAVs in non-structural (NS) regions 3 and 5A was analyzed by direct sequencing. HCV genotypes were determined by PCR with genotype-specific primers targeting HCV core and NS5B regions. SVR was achieved in 91.1% of patients. Female sex, age > 70 years, and RAVs were significantly associated with non-SVR (p<0.01 for all). Propensity score-matching results among the patients without RAVs regarding sex, age, and fibrosis revealed that mixed HCV infection determined by HCV NS5B genotyping showed significantly lower SVR rates than 1B-mono infection (p=0.02). Female sex and RAVs were significant factors associated with treatment failure of this combination therapy for patients with HCV serogroup 1 infection. Mixed HCV infection other than 1B-mono infection would be useful for predicting treatment failure.
Keywords mixed genotype daclatasvir asunaprevir HCV serogrouping 1 infection
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-08
Volume volume72
Issue issue4
Publisher Okayama University Medical School
Start Page 401
End Page 406
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 30140089
Title Alternative Fast-framing Focusing Schlieren Visualization of Two-dimensional Wing Buffet
FullText URL TransJSASS_63_4_166.pdf
Author 河内 俊憲| 山口 真伍| 小池 俊輔| 中島 努| 佐藤 衛| 神田 宏| 柳瀬 眞一郎|
Keywords Flow Visualization Shock-boundary Layer Interaction Supercritical Airfoil Two-dimensional Transonic Wind tunnel
Published Date 2015-07-28
Publication Title 日本航空宇宙学会論文集
Volume volume63
Issue issue4
Publisher 日本航空宇宙学会
Start Page 166
End Page 174
ISSN 13446460
NCID AA11307372
Content Type Journal Article
language Japanese
OAI-PMH Set 岡山大学
File Version publisher
DOI 10.2322/jjsass.63.166
Related Url isVersionOf https://doi.org/10.2322/jjsass.63.166
FullText URL JPP_28_1_106.pdf
Author Kouchi, Toshinori| Masuya, Goro| Mitani, Tohru| Tomioka, Sadatake|
Note This is an Accepted Manuscript of an article published by American Institute of Aeronautics and Astronautics|
Published Date 2012
Publication Title Journal of Propulsion and Power
Volume volume28
Issue issue1
Publisher American Institute of Aeronautics and Astronautics
Start Page 106
End Page 112
ISSN 07484658
NCID AA10459896
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
File Version author
DOI 10.2514/1.B34172
Web of Science KeyUT 000299461500009
Related Url isVersionOf https://doi.org/10.2514/1.B34172
Title Alternative Cytoskeletal elements in an acoelomorph worm, Praesagittifera naikaiensis
FullText URL poalas_034_021_180706.pdf
Author Ikeda, Risa| Fujiwara, Chiho| Hamada, Mayuko| Sakamoto, Tatsuya| Saito, Noboru| Ando, Motonori|
Abstract Acoel flatworms can move in a variety of ways such as muscular and ciliary movements via cytoskeletal elements and their neural regulations. However, those locomotive mechanisms have not yet been fully elucidated. In this study, we examined the distribution of cytoskeletal elements including filamentous actin (F-actin) and tubulin, and the neuroanatomical organization in an acoelomorph worm, Praesagittifera naikaiensis (P. naikaiensis). Video microscopy revealed the elongation/contraction and the bending/rotation processes, and the ciliary gliding movement of P. naikaiensis. Histochemical and morphological analysis demonstrated that F-actin networks of inner longitudinal and outer circular muscle fibers were positioned along the entire surface of the body, and that the average distance between the circular muscle fibers in the contracted organism was decreased in the anterior region compared with that in the elongated organism. Electron microscopy showed dense bodies on the muscle cells of P. naikaiensis, which indicates that those muscle cells have the appearance of vertebrate smooth muscle cells. Immunohistochemical analysis revealed that -tubulin-positive signals on the ciliary microtubules had close contact with the F-actin network, and that neurite bundles labelled with anti dSap47 antibody as a neuronal marker run along the anterior-posterior body axis. These results indicate that the well-organized cytoskeletal elements and their neural control systems are preserved in P. naikaiensis, and that their mechanisms involved in those regulation systems are similar to those vertebrate systems. Further studies are needed to clarify the physiological mechanisms underlying the muscular and ciliary movements in P. naikaiensis.
Publication Title Proceedings of Okayama Association for Laboratory Animal Science
Published Date 2018-04
Volume volume34
Start Page 21
End Page 27
language Japanese
File Version publisher
NAID 120006469118
JaLCDOI 10.18926/fest/55732
FullText URL fest_023_049_079.pdf
Author Fumikazu, Ichiminami| Meltem Okur Dinçsoy| Enver Erdin Dinçsoy|
Abstract There are many limitations and difficulties in terms of expanding agricultural lands. Also, some other factors affect the agricultural lands that result in decreases such as climate change, erosion and misuse of the lands. It is clear that these developments in agricultural land use threaten the future of human welfare, social conditions, economic growth and food supply. In this study, we examined the land use and its significance that represent past agriculture and regional characteristics in the Chugoku region including Okayama prefecture and the Seto Inland Sea. Specifically, among the products called as industrial crops, such as cotton, pyrethrum, rush, tobacco, rapeseed, mulberry and tea, were adopted as the indicators. Currently, these landscapes can hardly be seen, only leaves of tobacco and tea can still be seen in mountainous areas. Even in agricultural land usewhich has almost disappeared now, it may have indirect influence as in the case of reclaimed land and rush products. Therefore, we reaffirmed in this study the reasons for their existence and their significance.
Keywords industrial crop cultivated area rural geography agriculture Okayama prefecture
Publication Title 岡山大学環境理工学部研究報告
Published Date 2018-03
Volume volume23
Issue issue1
Start Page 49
End Page 79
ISSN 13419099
language English
File Version publisher
NAID 120006414150
FullText URL ApplEntomolZool_53_1_63.pdf ApplEntomolZool_53_1_63_fig.pdf
Author Okazaki, Tomoaki| Ichinose, Junya| Takebe, So| Ide, Toru| Hayakawa, Tohru|
Keywords Bacillus thuringiensis Mosquitocidal Cry46Ab toxin 4AaCter-tag Formation of protein inclusion Escherichia coli
Note This is an Accepted Manuscript of an article published by Springer Nature|
Published Date 2018-02
Publication Title Applied Entomology and Zoology
Volume volume53
Issue issue1
Publisher Springer Japan
Start Page 67
End Page 73
ISSN 0003-6862
NCID AA00543238
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
File Version author
DOI 10.1007/s13355-017-0529-5
Web of Science KeyUT 000422695600008
Related Url isVersionOf https://doi.org/10.1007/s13355-017-0529-5
JaLCDOI 10.18926/AMO/55659
FullText URL 72_1_23.pdf
Author Fujiia, Masayoshi| Takata, Katsuyoshi| Chuang, Shih-Sung| Miyata-Takata, Tomoko| Ando, Midori| Sato, Yasuharu| Yoshino, Tadashi|
Abstract The gastrointestinal (GI) tract is the most frequently involved site of extranodal non-Hodgkin lymphomas, and diffuse large B-cell lymphoma (DLBCL) is the most common subtype occurring in the GI tract. TNFAIP3 (A20) genetic alterations were reported to be involved in DLBCL’s pathogenesis and a portion of GI-DLBCL cases harbor this alteration. However, the frequency and clinicopathological relations focusing on small and large intestinal DLBCL are unclear. Here, we examined A20 deletion and protein expression and analyzed the clinicopathological features of 52 cases of primary intestinal DLBCL. The most frequently involved site was the ileocecal region (75%), followed by small bowel (13.5%) and large intestine. Immunohistochemically, the ileocecal cases expressed BCL6 (p=0.027) and MUM1 (p=0.0001) significantly more frequently than the small intestinal cases. Six of 47 cases (13%) had A20 heterozygous deletion, whereas all 6 heterozygously deleted cases had detectable A20 protein expression. In summary, A20 abnormality was less prevalent among intestinal DLBCLs with some discordancy between gene deletion and protein expression. Although the A20 alteration status did not affect any clinicopathological characteristics in this series, further studies exploring alterations of A20 and other NF-κB components in primary intestinal DLBCL are needed.
Keywords primary intestinal diffuse large B-cell lymphoma cell of origin A20 TNFAIP3 heterozygous deletion
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 23
End Page 30
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463935
FullText URL J_Orthop_Sci_22_4_715.pdf fig.pdf
Author Lu, Zhichao| Furumatsu, Takayuki| Fujii, Masataka| Maehara, Ami| Ozaki, Toshifumi|
Keywords vascular endothelial growth factor (VEGF) meniscus meniscal injury hypoxia-inducible factor-1α (HIF-1α)
Note This is an Accepted Manuscript of an article published by Elsevier|
Published Date 2017-07
Publication Title Journal of Orthopaedic Science
Volume volume22
Issue issue4
Publisher Elsevier
Start Page 715
End Page 721
ISSN 0949-2658
NCID AA11052566
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ja
File Version author
PubMed ID 28318650
DOI 10.1016/j.jos.2017.02.006
Web of Science KeyUT 000407394700022
Related Url isVersionOf https://doi.org/10.1016/j.jos.2017.02.006
FullText URL J_Orthop_Sci_21_4_524.pdf fig.pdf
Author Furumatsu, Takayuki| Maehara, Ami| Ozaki, Toshifumi|
Note This is an Accepted Manuscript of an article published by Elsevier|
Published Date 2016-07
Publication Title Journal of Orthopaedic Science
Volume volume21
Issue issue4
Publisher Elsevier
Start Page 524
End Page 529
ISSN 0949-2658
NCID AA11052566
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ja
File Version author
PubMed ID 27113646
DOI 10.1016/j.jos.2016.02.013
Web of Science KeyUT 000381142800020
Related Url isVersionOf https://doi.org/10.1016/j.jos.2016.02.013
JaLCDOI 10.18926/ESR/55324
Title Alternative A case study on the cyclone activity around Europe from winter to spring of 2000
FullText URL esr_023_1_033_042.pdf
Author Kuwana, Yusuke| Kato, Kuranoshin| Takigawa, Yumi| Kojima, Yumi| Otani, Kazuo|
Abstract Although the extratropical cyclone is one of the basic systems that characterize the weather and climate in mid-latitude regions with the large meridional temperature gradient, its activity and characteristics would be greatly influenced by the seasonal transition and regional differences of the mean atmospheric fields such as between Europe and East Asia. Furthermore, detailed knowledge of the daily cyclone activity would help to understand deeply the differences of regional climatology including seasonal cycles among various areas. In such interest, the present study performed a case study on the cyclone activity around Europe from winter to spring of 2000. In winter, intraseasonal variation of the Icelandic Low was dominant. In the stage when such intraseasonal-scale Icelandic Low approached to the northwestern Europe, the several lows passed eastward with a few days interval around the intraseasonal-scale low pressure area or its southern edge where the baroclinicity was relatively strong. It is also noted that their center pressure was rather low (below 980hPa). After April, when the seasonal mean Icelandic low had disappeared, different types of the intra-seasonal-scale cyclones and anticyclones were dominantly observed. In the lower SLP stage of the intraseasonal variation in Europe, the low to the southwest of England in the middle of April was of the equivalent barotropic structure and persisted for about ten days. On the other hand, high pressure area extending from England to the northern coast of Germany also persisted for about half month. The southern half of that high area was also of equivalent barotropic structure with warmer air there.
Keywords cyclone activity around Europe comparative climatology between Europe and East Asia seasonal cycle dynamic climatology
Publication Title Okayama University Earth Science Report
Published Date 2016-12-27
Volume volume23
Issue issue1
Start Page 33
End Page 42
ISSN 1340-7414
language Japanese
Copyright Holders © 2016 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
JaLCDOI 10.18926/ESR/55322
FullText URL esr_023_1_009_015.pdf
Author Takesue, Norito| Suzuki, Shigeyuki|
Abstract Analyzing of sedimentary facies and structure together with regional field mapping were studied in the mélange unit, upper Cretaceous Shimanto Belt, Wakayama Pref., SW Japan. The field survey was concentrated in the coast of Shiofuki-iwa, Miyama Complex, Hidakagawa Belt where soft deformations penetrate throughout the mélange unit. Brittle to ductile faults associated as later deformations are excluded. The mélange unit is subdivided into the Y-shear zone (YSZ) and P-foliation zone (PFZ). The YSZ is composed of thick lenticular sandstone (trends subparallel to the direction of the mélange), intense shear band (thin layer with concentrated prelithification shear deformation) and mudstone dominant mélange. The PFZ is composed of mudstone dominant mélange (associated with foliations which slightly oblique to the direction of the YSZ) and lenticular sandstone (slightly oblique to the direction of the YSZ). The intense shear band separates the YSZ and PFZ. Preserved radiolarian fossils free from deformation in the intense shear band is the evidence of the prelithification shear deformation in the mélange. A remarkable-fact is that the structures of mélange unit are formed under sinistral sense of shear. The mélange unit in the Shiofuki-iwa is ascribed to be formed by sinistral sense of shear during sediments were prelithified.
Keywords mélange Shimanto Belt Y-shear zone P-foliation zone intense shear band prelithification structures
Publication Title Okayama University Earth Science Report
Published Date 2016-12-27
Volume volume23
Issue issue1
Start Page 9
End Page 15
ISSN 1340-7414
language English
Copyright Holders © 2016 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher