Title Alternative Bulletin of Archaeological Research Center Okayama University 2016
FullText URL barc_2016.pdf
Author Yamaguchi, Yuji| Yamamoto, Etsuyo| Suzuki, Shigeyuki| Iwasaki, Shiho| 白石 純| Minami, Kentaro| Nozaki, Takahiro| 佐藤 朗| 二宮 和彦|
Publication Title 岡山大学埋蔵文化財調査研究センター紀要
Published Date 2018-03-28
Volume volume2016
language 日本語
File Version publisher
Pages 86
Title Alternative Bulletin of Archaeological Research Center Okayama University 2017
FullText URL 紀要2017.pdf
Author Nozaki, Takahiro| Minami, Kentaro| Yamamoto, Etsuyo| Suzuki, Shigeyuki| Yamaguchi, Yuji| Iwasaki, Shiho| 古環境センター| 吉田生物研究所|
Publication Title 岡山大学埋蔵文化財調査研究センター紀要
Published Date 2019-03-29
Volume volume2017
language 日本語
Copyright Holders Archaeological Research Center, Okayama University
File Version publisher
Pages v, 96 p.
JaLCDOI 10.18926/ESR/13844
Title Alternative バングラディシュの更新世台地の地形と地質
FullText URL EAR_13_1_1.pdf
Author Towhida Rashid| Md. hossain Monsur| Suzuki, Shigeyuki|
Abstract With regards to the origin and evolution of the Pleistocene tracts (Lalmai, Madhupur and Barind tracts) of Bangladesh, two trends of thoughts are common. Most of the authors believed that the Madhupur, Barind and Lalmai tracts represent tectonically uplifted surface. Some researchers have different opinion and they believed that the Lalmai hills and the Madhupur locality represent tectonically uplifted blocks but the whole Barind tract and the major portion of the Madhuput tracts are not tectonically uplifted, rather these are originated by erossional-depositional processes. In order to solve the problems associated with origin and evolution of Pleistocene tracts of Bangladesh, further study is needed. Borehole data may be collected and fusion images can be prepared from aerial photographs and setellite images to detect netectonic imprins and geomorphological signatures of the areas. Elaborate laboratory analysis of sediment deposits, radiocarbon dating my indicate a new dimension about the origin and evolution of these tracts.
Keywords Bangladesh Lalmai Hill Barind Tract Madhupur Tract Neotectonices Aerial photographs Satellite Image Fusion Image
Publication Title Okayama University Earth Science Report
Published Date 2006-03-31
Volume volume13
Issue issue1
Start Page 1
End Page 13
ISSN 1340-7414
language 英語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310445
JaLCDOI 10.18926/ESR/13847
Title Alternative Geology of Holocene deposits in Mizushima Area, Okayama Prefecture, Japan
FullText URL EAR_13_1_15.pdf
Author Suzuki, Shigeyuki|
Abstract The study srea, Mizushima is occupied by polder and reclaimed land. The ground of this area is composed of the Holocene deposits below the surface. The deposits are mostly 10 to 20m in thickness and composed of 2 units, the B Unit and C&D Unit. The B Unit is composed of muddy sand with 2 to 3m in thickness. This unit is thought to be deposited in the mouth of paleoriver. The C&D Unit is composed of marine mud and sand with 10 to 15m in thickness. This unit is especially soft and will expand ground oscillations during an earthquake.
Keywords Holocene deposits Mizushima Area Ground oscillation
Publication Title Okayama University Earth Science Report
Published Date 2006-03-31
Volume volume13
Issue issue1
Start Page 15
End Page 18
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310562
JaLCDOI 10.18926/ESR/13869
Title Alternative Relative sea-level changes of the Okayama Plain Area during the Holocene, Southwest Japan
FullText URL earth_science_reports_011_1_33.pdf
Author Suzuki, Shigeyuki|
Abstract Postglacial relative sea-level change of the Okayama Plain Area has been analyzed. Former sea-levels were recognized by using peat beds and marine organisms which are also available for 14C dating. Peat beds were rhought to be formed under a stable sea-level condition. 14C ages of the analyzed peat beds were seprated by 4 groups ; 30~18 ka BP, 11~8 ka BP, 6~4 ka BP and 3~2.5 ka BP, indicate 4 stable sea-level periods. 2 transgressive events (18~11 ka BP and 8~6 ka BP) and one regressive event (3.5?~3 ka BP) were also inferred.
Keywords sea-level change peat bed Holocene Okayama Plain
Publication Title Okayama University Earth Science Report
Published Date 2004-12-31
Volume volume11
Issue issue1
Start Page 33
End Page 37
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310268
JaLCDOI 10.18926/ESR/13870
Title Alternative Paleoenvironmental Analyses of the Buried Peat Deposit during the mid-Holocene at the Desaki Coast in Tamano City, Okayama Prefecture, Weatern Japan
FullText URL earth_science_reports_011_1_39.pdf
Author Matsushita, Mariko| Sato, Hiroshi| Suzuki, Shigeyuki| Yukumoto, Koichi| Momohara, Arata| Ueda, Yayoi| Katoh, Shigehiro| Maeda, Yasuo|
Abstract The buried peat deposit was foud in the sand beach on the Desaki coast (Tamano City, Okayama Prefecture), the northeastern coast of Seto Inland Sea. In this study, we performed sulfur and diatom analyses of the deposit. The results were used along with 14C dates and the eruption age (7300 cal BP) of Kikai-Akahoya tephra (K-Ab) to derive sedimentary environments of the deposit. K-Ah was detected just below the peat deposit. At the culmination of the Jomon transgression, the peat deposit had been formed in brackish environments of salt marsh for about 300 years. In order to reconstruct local paleovegetation, we analyzed pollen, wood and plant fossils in the deposit. The results show vegetational transition from a deciduous broadleaved forest mainly of Ouercus subgen. Lepidobalanus to Pinus forest. In spite of the Holocene thermal optimum, the vegetation dominated by Ouercus subgen. Cyclobanopsis was not recognized at the Desaki site, as has been shown in many other regions of regions of western Japan. Ouercus sect. Prinus was replaced by Ouercus sect. Aegilops as the dominant section of Ouercus subgen. Lepidobalanus, suggesting early establishment of traditional rural vegetation of 'Satoyama' in Japan. However, no evidence for human agency has been obtained from the mid-Holocene archaeological sites around the Desaki site. Thus it is more likely that this vegetational transition resulted from the succession caused by natural forces such as ecological disturbance and climatic and/or endemic situations rather than by cultural deforestation.
Keywords Desaki coast diatom remains Jomon transgression Kikai-Akahoya tephra mid-Holocene Paleoenvironment peat deposit plant fossils
Publication Title Okayama University Earth Science Report
Published Date 2004-12-31
Volume volume11
Issue issue1
Start Page 39
End Page 47
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310603
JaLCDOI 10.18926/ESR/13874
Title Alternative Distributions and ages of the Paleogene deposits in the Kibi Plateau Area, and Paleogene paleogeography
FullText URL earth_science_reports_010_1_15.pdf
Author Tanaka, Hajime| Suzuki, Shigeyuki| Hotani, Shu| Yamamoto, Yasuo| Danhara, Tohru|
Abstract The "Kibi Plateau" forms a unique geomorphic province with the gently-sloping and stable continental feature. Gravel deposites called the "Mountain Gravels", are distributed sporadically in the Kibi Plateau, and have been considered Pliocene deposits. However, recent fission-track ages of the tuff beds intercalated in the deposits have indicated that the ago of deposits are Paleogen in the age. So far, fission-track ages (using zircon) of 61 to 65, 55, 37, 34 to 35 and 27 Ma are obtained. Remaining the belt-like distributions of the Paleogene gravelly valley-full deposits suggest that the Kibe Plateau has been keeping as a stable block, and repeated periods of incision followed by sedimentation of valley-fill deposits are occurred in the area during Paleogene period.
Keywords Kibi Plateau gravelly valley-fill deposites fission-track ages Paleogene palaeogeography
Publication Title Okayama University Earth Science Report
Published Date 2003-12-20
Volume volume10
Issue issue1
Start Page 15
End Page 22
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310517
JaLCDOI 10.18926/ESR/13875
Title Alternative Depositional environments of the Katsuta Group, eastern Tsuyama Basin, Southwest Japan
FullText URL earth_science_reports_010_1_23.pdf
Author Yamasaki, Ryo| Suzuki, Shigeyuki|
Abstract The Miocene Katauta Group of the Syohoku-cho area is subdivides into 6 members ; The Uetsuki Conglomerate Member, Nara Sandy Mudstone Member, Tai Gravelly Sandstone Member, Takatori Conglomerate Member, Ayabe Mudstone Member and Maruyama Mutstone Member from bottom to top. The unconformity between Miocene deposits and basement rocks in this area was traced to obtain geometry of the Miocene basin. Contour maps of the bases of the Miocene Yoshino Formation and Takakura Formation indicate paleo-topography. The obtained topography demonstrates a valley, which flowed to north-west, and a few islands and bays. It indicates that these Miocene successuions were deposited in the topography which resemble to the present Seto Inland.
Keywords Katsuta Group Tsuyama Basin Miocene geometry of basin paleoenvironmental chage
Publication Title Okayama University Earth Science Report
Published Date 2003-12-20
Volume volume10
Issue issue1
Start Page 23
End Page 31
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310475
JaLCDOI 10.18926/ESR/13880
Title Alternative Pyrite spots formed along slaty cleavage texture of pelitic rocks of the Tamba Belt, Ujitawara Town, Kyoto Prefecture, Southwest Japan.
FullText URL ESR_9_19.pdf
Author Mikami, Teiji| Musashino, Makoto| Suzuki, shigeyuki|
Abstract Pyrite spots were identified in pelitic rocks from the Ujitawara area, southernmost part of Tamba belt. XMA analysis shows that the spots are composed of pyrite. The spots occur along slaty cleavage plane and form spotted shape of diameter of about 5mm.
Keywords The Tamba Group Ujitawata pelitic rocks pyrite spots slaty cleavage
Publication Title Okayama University Earth Science Report
Published Date 2002-09-20
Volume volume9
Issue issue1
Start Page 19
End Page 24
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310485
Author Fujiwara, Takao| Suzuki, Shigeyuki|
Published Date 2002-09-20
Publication Title Okayama University Earth Science Report
Volume volume9
Issue issue1
Content Type Departmental Bulletin Paper
JaLCDOI 10.18926/ESR/13885
Title Alternative Miocene Ukan Formation, Ukan Area, Okayama Prefecture, Southwest Japan
FullText URL ESR_8_1_1.pdf
Author Fujiwara, Takao| Taguchi, Eiji| Suzuki, shigeyuki|
Abstract In this paper, we deal with the Miocene Ukan Formation, sporadically distributed in Ukan-cho, Okayama prefecture, from a viewpoint of analysis of lithology and molluscan assemblages. The Ukan Formation is lithostratigraphically divided into the Suzuoka Conglomerate, Yamagata Muddy Sandstone, Shimoyokomi Sandstone and Conglomerate, Azechi Sandstone and Conglomerate, Tsuneyama Siltstone Members in ascending order. The following 6 molluscan assemblages are recognized. The lower four members and the last member is correlative to the Lower Sandstone and Upper Shale Formation of the Bihoku Group, respectively judging from lithology and fauna. The temporal chages of the above mentioned molluscan assemblages represents that gradual deeping of sea during the depositional period from the Suzuoka Conglomerate and Yamagata Muddy Sandstone Members to the Azechi Sandstone and Conglomerate Member via the Shimoyokomi Sandstone and Conglomerate Member, and abrupt deeping of sea seems to have happened between the Azechi Sandstone and Conglomerate Member and the Tsuneyame Siltstone Member.
Keywords Lithology Molluscan assemblage Paleoenvironmental change Ukan Miocene
Publication Title Okayama University Earth Science Report
Published Date 2001-09-20
Volume volume8
Issue issue1
Start Page 1
End Page 12
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310604
JaLCDOI 10.18926/ESR/13887
Title Alternative Trace of the Median Tectonic Line in Mima area, eastern Shikoku
FullText URL ESR_8_1_13.pdf
Author Mizui, Yoshinobu| Tachibana, Toru| Suzuki, shigeyuki|
Abstract Tracing outcrops of shear zone were used to describe the geometry and structure of the Median Tectonic Line in Mima area, eastrn Shikoku. A distinct new fault outcrop was discovered between the Mino and Ikuchi Faults at the northern slope of the Mt. Boso. These two faults are regarded as a single continuous fault. The analysis of surface fabrics of quartz in fault in fault gauge has been carried out to determine relative fault activity events.
Keywords surface fabrics fault gauge Mino-Ikuchi Fault Median Tectonic Line
Publication Title Okayama University Earth Science Report
Published Date 2001-09-20
Volume volume8
Issue issue1
Start Page 13
End Page 28
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310656
JaLCDOI 10.18926/ESR/13900
Title Alternative Relashonships between "Mountation Gravels" and the Bizen and Tomihara Coal Measures, northern Okayama City, Southwest Japan
FullText URL ESR_7_35.pdf
Author Suzuki, Shigeyuki| Nakazawa, Keiji| Tanaka, Hajime|
Abstract The Bizen and Tomihara Coalfields which were situated in northern Okayama City, had produced lignite during 1940s. Distribution of coal measures indicates that the coal measures are intercalated in the middle of the so-called "Mountain Gravels". The "Mountain Gravels" is subdivided into two formations ; the older, about 34~35Ma, and the younger, about 27Ma, of fission track ages. The older formation inculudes the Bizen Coal Measures. On the other hand, the Tomihara Coal Measures are intercalated in the younger formation.
Keywords Bizen Coal Measures Tomihara Coal Measures Okayama City Paleogene
Publication Title Okayama University Earth Science Report
Published Date 2000-09-20
Volume volume7
Issue issue1
Start Page 35
End Page 40
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310497
JaLCDOI 10.18926/ESR/13901
Title Alternative Tidal notch cut into the Namigata Limestone, 240m above sea level, Ibara City, Okayama Prefecture
FullText URL ESR_7_41.pdf
Author Fujiwara, Takao| Suzuki, Shigeyuki| Maeda, Yasuo|
Abstract The tidal notch and the sea caves which cut into the Namigata Limestone is stiuated in 240m above sea level, Ibara City. The notch assocciates the Namigata Terrace 200m to 240m high. These geomorphological features indicate an event of high sea level. However the age of the event has not been known.
Keywords notch sea cave Namigata Okayama Prefecture
Publication Title Okayama University Earth Science Report
Published Date 2000-09-20
Volume volume7
Issue issue1
Start Page 41
End Page 46
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310395
JaLCDOI 10.18926/ESR/13902
FullText URL ESR_7_47.pdf
Author Yamagiwa Nobuo| Suzuki, Shigeyuki| Okimura Yuji|
Abstract A new rugose coral species, Lithostrotion (Siphonodendron) hinensis is described in this paper. It was collected from the Carboniferous Hina limestone in Okayama Prefecture, Southwest Japan. Judging from the paleontological data, the age indicates probably Late Viaean, Early Carboniferous.
Keywords Early Carboniferous rugosa Lithostrotion (Siphonodendron) Hina Limestone Okayama
Publication Title Okayama University Earth Science Report
Published Date 2000-09-20
Volume volume7
Issue issue1
Start Page 47
End Page 50
ISSN 1340-7414
language 英語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310319
JaLCDOI 10.18926/ESR/13906
Title Alternative Peat bed of Jomon age in Desaki Beach, Tamano City, Okayama Prefecture
FullText URL ESR_6_23.pdf
Author Suzuki, Shigeyuki| Yukimoto, Koichi|
Abstract Peat bed remains isolated in the shoreline of western beach of Desaki peninsula. Collected samples gave radiocarbon data of 5790±80 and 5810±60 years BP.
Keywords Peat Holocene Desaki Beach
Publication Title Okayama University Earth Science Report
Published Date 1999-09-20
Volume volume6
Issue issue1
Start Page 23
End Page 28
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310593
JaLCDOI 10.18926/ESR/13909
Title Alternative Topography and deposits of terrace of Yokohama Town, Northeast Japan
FullText URL ESR_5_1.pdf
Author Suzuki, Shigeyuki| Miyawaki, Akiko|
Abstract Higher, middle and Lower Terraces (Quaternary) have been distinguished in Yokohama Town, Aomori Prefecture. The Higher Terraces are subdivided into three terraces, H1,H2 and H3. They are distributed in hills. H1 and H2 deposites are composed of gravels of fan deposits. H3 deposits are composed of gravels, sands and mud of alluvial plain deposits. The Middle Terraces are subdivided into three terraces, M1, M1' and M2, and occupy almost all terraces in Yokohama Town. These deposits are composed of beach (sand with gravel) and fan (gravel) deposits. The Lower Terraces are subdivided into two terraces, L1 and L2. The L1 Terrace is distributed in limited area along coast and thought to be composed of beach deposits. The L2 Terrace is distributed in limited area along river and composed of braided stream deposits.
Keywords terrace beach deposits fan deposits Quaternary
Publication Title Okayama University Earth Science Report
Published Date 1998-09-20
Volume volume5
Issue issue1
Start Page 1
End Page 12
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310292
JaLCDOI 10.18926/ESR/13911
Title Alternative (14)C ages of Quaternary deposits in Kojima Lake area, Tamano City, Okayama Prefecture
FullText URL ESR_5_13.pdf
Author Sasaki, Hajime| Suzuki, Shigeyuki|
Abstract Two 14C ages are obtained from drilled core samples in Kojima Lake area. One is 7920±250 y.B.P. from peat which is just below silty clay of bay sediments (-14.30-14.61 m) The other is 24900+3450,-2450 y.B.P. from pale milky gray clay of fluvial sediments (-24.15-24.45 m).
Keywords (14)C age Quaternary Kojima Lake area
Publication Title Okayama University Earth Science Report
Published Date 1998-09-20
Volume volume5
Issue issue1
Start Page 13
End Page 16
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 80011114460
JaLCDOI 10.18926/ESR/13916
Title Alternative Landslide occurrence and geology of the Triassic Nariwa Group, Southwest Japan
FullText URL ESR_4_21.pdf
Author Hotani, Shu| Suzuki, Shigeyuki| Tanaka, Hajime| Yamada, Takuya|
Abstract Geological and topographical study of landslides in the Triassic Nariwa Group has been carried out. Nariwa Group is mostly composed of non-marine deposites and is characterized by cycle of fining upward successions. Landslides abundantly occur in the non-marine successions. Slip surface occure in coaly mudstones that have conspicuously less strength than sandstones. Creeps immediately below slip surfaces contribute to the occurrence of landslides in the Nariwa Group.
Keywords Iandslide Nariwa Group coaly mudstone
Publication Title Okayama University Earth Science Report
Published Date 1997-09-20
Volume volume4
Issue issue1
Start Page 21
End Page 32
ISSN 1340-7414
language 日本語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310343
Author 野崎 貴博| 岩崎 志保| 鈴木 茂之| 山本 悦世| 南 健太郎| 田中 克典| 加藤 鎌司|
Published Date 2013-12-27
Publication Title 岡山大学埋蔵文化財調査研究センター紀要
Volume volume2012
Content Type Departmental Bulletin Paper