JaLCDOI 10.18926/ESR/55321
Title Alternative Risk prediction of landslide and debris flow using slope gradation map obtained from airborne laser scanning
FullText URL esr_023_1_001_007.pdf
Author Suzuki, Shigeyuki| Miyashita, Masashi| Hirakawa, Takeshi| Fujiwara, Mieko| Nishiyama, Satoshi|
Abstract The slope gradation map which is obtained from airborne laser scanning is very important tool to detect hazardous sites of landslide, debris flow and others. The features of the images (what the images are represented) in the map were confirmed by field survey. The study area, Tamagashi is situated in the Kibi Plateau area, Okayama City, Japan. The map helps to distinguish between artificial microrelief and natural microtopography very well. Small scarps (even 0.5m high), rocky cliffs and large blocks (larger than 2m) are identified in the map. The detail images of the microrelief suggest threatening sites. The merit of the map leads us to find the site in the field easily. We will not miss the threatening sites by using the map.
Keywords Risk prediction slope gradation map airborne laser scanning landslide debris flow Okayama
Publication Title Okayama University Earth Science Report
Published Date 2016-12-27
Volume volume23
Issue issue1
Start Page 1
End Page 7
ISSN 1340-7414
language 日本語
Copyright Holders © 2016 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
JaLCDOI 10.18926/ESR/58575
Title Alternative Schistose fault related rocks from the Sangun Metamorphic Rocks, Kawakita area, Misaki Town, Okayama Prefecture, SW Japan
FullText URL esr_026_019_024.pdf
Author MATSUSHITA, Mirei| SUZUKI, Shigeyuki|
Abstract The crystalline schist which is representatively exposed in the Innerside of Southwest Japan is called the Sangun Metamorphic Rocks (SMR). In Kawakita area, Misaki Town, Okayama Prefecture, schistose fault rocks which is newly described in below are intercalated in the SMR. The rocks are composed of lenticular fragments of pelitic, basic siliceous rocks and quartz vein with siliceous to pelitic matrix. The fine-grained muscovites which define schistosity penetrate the rocks. Major direction of layer which though to reflect slip plane is subparallel to the schistosity. The long axis of some fragments are slightly oblique to the schistosity. The combination of the two sets of planes is considered to be a composite planar fabric. These occurrences suggest that the rocks are fault rock before the Sangun Metamorphism and named as schistose fault rocks. Lenses of cataclasite and myronite are accompanied. Planar thin (about 10cm in thickness) brittle fault rock is also associated. These shear deformed rocks form units of layer (shear zone) of 10 to 100m in thickness, and are concordantly intercalated in the surrounded normal schists. Active periods of the shear zones had several times from before and after the event of the Sangun Metamorphism.
Keywords Sangun Metamorphic Rocks regional metamorphism shear deformation schistose fault rock
Publication Title Okayama University Earth Science Report
Published Date 2019-12-27
Volume volume26
Issue issue1
Start Page 19
End Page 24
ISSN 1340-7414
language 日本語
Copyright Holders © 2019 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
Author Yamamoto, Etsuyo| Yamaguchi, Yuji| Suzuki, Shigeyuki|
Published Date 2018-02
Content Type Research Paper
JaLCDOI 10.18926/ESR/49208
Title Alternative Folded structure of the Carboniferous Ko-yama Limestone Group, Akiyoshi Belt, SW JAPAN
FullText URL esr_019_1_005_011.pdf
Author Inada, Noriyuki| Suzuki, Shigeyuki| Ishida, Keisuke|
Abstract The fold structure of the Akiyoshi Belt was analyzed in Kawakami-cho, Okayama Prefecture, where the Lower Carboniferous to Middle Permian Ko-yama Limestone Group (Yokoyama et al., 1979), Permian Yoshii Group (Sano et al., 1987) and Triassic Nariwa Group (Teraoka, 1959) are distributed. The Nariwa Group unconformably covers the Paleozoic successions (Otoh, 1985). The Lower Carboniferous to Middle Permian Ko-yama Limestone Group, dated by foraminifers and fusulinids (Yokoyama et al., 1979), is mainly composed of massive limestone with basic volcanics, acidic tuff and chert. The Paleozoic successions of the Akiyoshi Belt were folded during the Middle to Late Permian (Suzuki et al., 1990). Strata of the Ko-yama Limestone Group generally strike E-W and dip to the north. The Hoya section about 300 m thick is composed of limestone, basic tuff, chert and acidic tuff, limestone, basic lava and tuff in ascending order. In this section, Ishida et al. (2012) recognized a nearly complete conodont faunal succession ranging from the upper Visean to the lower Moscovian. The faunal succession indicates younging southward, and the strata are overturned. A folded strucuture of tight overfold with north-dipping axial plane was reconstructed. Similar style of small scale overfolds of banded chert and turbidite were observed in the overlying Yoshii Group.
Keywords folded structure Ko-yama Limestone Group Carboniferous Akiyoshi Belt
Publication Title Okayama University Earth Science Report
Published Date 2012-12-26
Volume volume19
Issue issue1
Start Page 5
End Page 11
ISSN 1340-7414
language 日本語
Copyright Holders © 2012 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
NAID 120005232326
JaLCDOI 10.18926/ESR/56691
Title Alternative Non-calcareous beachrock found in Akagurisaki, Ohi Town, Fukui Prefecture
FullText URL esr_025_001_005.pdf
Author Suzuki, Shigeyuki| Azuma, Yoichi| Deyama, Yasuyo| Yukawa, Hirokazu| Usui, Mayumi|
Abstract Beachrock which was formed about 0.5 meter higher than high tide is found in Akagurisaki, Ohi Town, Fukui Prefecture. The outcrops always get wet by spring water. The sediments are composed of well sorted rounded gravels and sands but calcareous shell is not found at all. Intergranular space is occupied by white amorphous cement. Magnesium and silicon rich composition of the cement is obtained by EPMA analysis. There is a conjecture that the magnesium rich cement was precipitated in spite of solution of calcareous shell under saturated state by spring water, because calcium has a higher tendency to ionize than magnesium.
Keywords Beachrock Akagurisaki non-calcareous cement ionization tendency
Publication Title Okayama University Earth Science Report
Published Date 2018-12-27
Volume volume25
Issue issue1
Start Page 1
End Page 5
ISSN 1340-7414
language 日本語
Copyright Holders © 2018 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
JaLCDOI 10.18926/ESR/15024
Title Alternative Microscopic observations of the recent soils: a step for understanding the paleosols
FullText URL 015_009_032.pdf
Author 福地 亮| Suzuki, Shigeyuki|
Abstract The microscopic observations of the recent soil horizons were conducted in Okayama, Japan (moderate climate). The several soil horizons, including two surface (epipedon) and three subsurface horizons, were recognized in the forest, poorly vegetated hill, and riverside around the Okayama University. The umbric epipedon can be segregated from the organic-rich subsurface horizons by the scattered organic materials in thin sections. The ochrich epipedon shows the sandy matrix without any cements and the illuviation of clay minerals. The subsurface horizons identified in the study area are as follows: albic, argillic, and cambic horizons. Each subsurface horizon shows the specific structures in thin sections. The albic horizon is characterized by the absence of the illuviation. The argillic horizon definitely shows the clayey matrix and the illuviation of clay minerals. The primary structures may be retained in the cambic horizon. The microscopic examination of the Miocene paleosols from the Ukan-cho, Okayama, was attempted. By comparing the recent soils, the cambic horizon and spodic horizon, which is characterized by the concentration of sesquioxides, are identified in the paleosols. This attempt suggests that the microscopic observations of the recent soils is a useful guide to understanding the paleosols
Keywords soil paleosol soil horizon soil structure microscopic observation
Publication Title Okayama University Earth Science Report
Published Date 2009-03-31
Volume volume15
Issue issue1
Start Page 9
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 120002307964
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
Author 鈴木 茂之|
Published Date 2014-02
Publication Title 環境制御
Volume volume35
Content Type Departmental Bulletin Paper
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/13940
Title Alternative Application of the remotely operated TV vehicle to make geological maps of the Seto Inland Sea
FullText URL ESR_2_13.pdf
Author Suzuki, Shigeyuki| Inada, Takashi|
Abstract Submarine geological survey using the remotely operated TV vehicle (RV100), was carried out in 4 offshores of the Seto Inland Sea in Kagawa Prefecture. The study areas are west of Kosei Island of Sakaide City, south of Okado-bana of Nankai Town, west of Misaki of Takuma Town and north of Nou-Misaki of Sakaide City. TV vehicle transmite clear pictures of bottom of the sea to the monitor on board. The submarine geology of the study areas are composed of Cretaceous granitic basements and Quaternary sedimentary covers. By using these pictures Recent and Pleistocene deposits could be distinguished and lithology of sediments could also be identified. Lithology of sediments was however difficult to identify using the usual sonic prospecting method. Furthermore, pictures suggesting that ripples are just forming have been obtained. The TV vehicle is convenient in submarine survry, because it can travel much longeer and deeper than human diver. A new method of mapping submarine geology using TV vehicle was developed.
Keywords Submarine geology the Seto Inland Sea remotely operated TV vehicle
Publication Title Okayama University Earth Science Report
Published Date 1995-09-20
Volume volume2
Issue issue1
Start Page 13
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 120002310382
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/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/19848
Title Alternative The first Japanese word "chishitsu-gaku" for the "geology" was proposed by Genpo Mitsukuri (1799-1863)
FullText URL 016_001_007.pdf
Author Okada, Hakuyu| Suzuki, Shigeyuki|
Abstract The first Japanese word "chishitsu-gaku" for the "geology" was proposed by Genpo Mitsukuri, a scientific contributor in the Tokugawa regime in the 19th century, who was born in 1799 in Tsuyama in Western Honshu, Japan and had worked for scientific activities of the Tokugawa government from 1839 to 1863. His major works for the first making of the "chishitsu-gaku" for the "geology" have been presented in this paper, also showing his contribution to Japanese sciences.
Keywords Genpo Mitsukuri "chishitsu-gaku" 19th century
Publication Title Okayama University Earth Science Report
Published Date 2009-12-25
Volume volume16
Issue issue1
Start Page 1
End Page 7
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 120002309076
JaLCDOI 10.18926/ESR/53193
Title Alternative Paleoparadoxia from the middle Miocene of Obara, Misaki-cho, Okayama Prefecture, Japan
FullText URL esr_021_1_007_011.pdf
Author Fukuchi, Akira| Suzuki, Shigeyuki|
Abstract  The partially preserved left humerus of the Desmostylia (Mammalia) has been collected from the riverbed in Obara, Misaki-cho, Okayama Prefecture in the western Japan. This specimen can be classified to the genus Paleoparadoxia by the following features: the absence of the supratrochlear foramen; the curved disto-lateral border of the shaft in the antero-posterior view; the medio-laterally expanded flat trochlea of humerus. Moreover, this specimen can be referred to cf. P. media on the basis of its middle-sized dimensions. This is the second occurrence of Palaeoparadoxia from Okayama Prefecture.
Keywords Middle Miocene mammal Desmostylia Paleoparadoxia
Publication Title Okayama University Earth Science Report
Published Date 2014-12-27
Volume volume21
Issue issue1
Start Page 7
End Page 11
ISSN 1340-7414
language 日本語
Copyright Holders © 2014 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
NAID 120005567872
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/52165
Title Alternative On Periploma mitsuganoense Araki (Bivalvia: Mollusca) from the Miocene Bihoku Group in Niimi City, Okayama Prefecture, southwest Japan ―with special reference to it’s paleogeographic significance―
FullText URL esr_020_1_007_011.pdf
Author Taguchci, Eiji| Kishimoto, Shingo| Suzuki, Shigeyuki|
Abstract In this paper, we deal with re-description of Periploma mitsuganoense Araki and it’s morphological variation and significance of the molluscan fauna of it from the Miocene Bihoku Group in Niimi City, Okayama Prefecture, Southwest Japan. Moreover, the paleogeographic significance of this species is analyzed. The obtained results are summarized as follows: 1. The morphological variation of Periploma mitsuganoense Araki has a wide range on the basis of the analysis of the morphological outline. 2. The occurrence of P. mitsuganoense Araki from the Pectinid fauna is the first record in the West Setouchi Geological Province. 3. It is presumable that P. mitsuganoense Araki is an endemic species in the First Setouchi Geological Province from a view point of it’s spatial distribution.
Keywords Periploma mitsuganoense Araki Mollusca Miocene Bihoku Group morphological variation paleogeographic significance
Publication Title Okayama University Earth Science Report
Published Date 2013-12-27
Volume volume20
Issue issue1
Start Page 7
End Page 11
ISSN 1340-7414
language 日本語
Copyright Holders © 2013 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
NAID 120005394593
JaLCDOI 10.18926/ESR/54119
Title Alternative Facies analysis of the Jito Formation ( Upper Triassic Nariwa Group ) in Jito Area, Kawakami, Okayama Pref., SWJapan.
FullText URL esr_022_1_031_039.pdf
Author Masaoka, Yuto| Suzuki, Shigeyuki|
Abstract Facies analysis and analysis of stratigraphy together with folded structure of the Norian Jito Formation were studied in Jito Area, Kawakami, Okayama Pref., SW Japan. Results of regional mapping and measured sections reconstruct three-dimensionally distribution of the Jito Formation. The Jito Formation is sub-divided into the four new members; the Shimohira Muddy Sandstone Member, the Otofuji Coarse-grained Turbidite Member, the Misawa Fine-grained Turbidaite Member, and the Ide Conglomerate Sandstone Member in ascending order. The shimohira Muddy Sandstone Member is interpreted to be deposited in an inner-bay. The Otofuji Coarse-grained Turbidite Member and The Misawa Fine-grained Turbidite Member are considered to be deposited on a continental shelf. The Ide Conglomerate Sandstone Member is inferred to be a shallow marine deposit. As a result, the Jito Formation is regarded as one transgressive-regressive package.
Keywords Jito Formation Nariwa Group Norian facies analysis turbidite
Publication Title Okayama University Earth Science Report
Published Date 2015-12-27
Volume volume22
Issue issue1
Start Page 31
End Page 39
ISSN 1340-7414
language 日本語
Copyright Holders © 2015 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
NAID 120005728631
JaLCDOI 10.18926/ESR/52164
Title Alternative Debris avalanche occurred in Kitamura area, Kurashiki City, Okayama Prefecture
FullText URL esr_020_1_001_006.pdf
Author Kimura, Yuki| Suzuki, Shigeyuki|
Abstract The debris avalanche occurred in Kitamura area, Kurashiki City, Okayama Prefecture caused by the hard rain of Typhoon 12 of September, 2011. Furthermore, 11 small landslides occurred in the study area. In this area, the altitude of mountainous are not so high (150m to 250m) and the amount of precipitation which producted the debris avalanche was not very serious quantity with 230mm. However the debris avalanche occurred. One private house collapsed, and the first floor part of the Kitamura Elementary School was buried due to the debris flow. The purpose of this study is to examine causes of the debris avalanche disaster occurred in Kitamura area using applied geological technique. The length of the debris avalanche scar is about 250m, and alluvial fan is formed as a debris slope. The ground is composed of weathered granite and the bottom of the valley was filled by soils derived from disintegrated granite. There are three small landslides as head scarps with steep slopes at approximately 30°-35°. The debris avalanche was inferred to have started as a shallow soil slip at the head by rainfall. 3 major causes are inferred which originated the debris avalanche in the study area; steep slope, ground composed of weathered granite, existence of sandy soil which occupied at the bottom of valley.
Keywords debris avalanche steep slope weathered granite
Publication Title Okayama University Earth Science Report
Published Date 2013-12-27
Volume volume20
Issue issue1
Start Page 1
End Page 6
ISSN 1340-7414
language 日本語
Copyright Holders © 2013 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
NAID 120005394592
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/49207
Title Alternative Holocene environmental and sea-level changes of the Okayama Plain – evidence from peat beds –
FullText URL esr_019_1_001_004.pdf
Author Suzuki, Shigeyuki|
Abstract Quaternary peat beds from bore-hole samples deliver information to reconstruct paleoenvironment. Altitudes of dated non-marine peat beds and marine beds allow to be created a sea-level curve. 4 peat beds (A to D) are identified from the uppermost Pleistocene to Holocene deposits of the Okayama Plain. They thought to be deposited at stable events during sea-level change.
Keywords Holocene peat beds paleoenvironment sea-level change Okayama Plain
Publication Title Okayama University Earth Science Report
Published Date 2012-12-26
Volume volume19
Issue issue1
Start Page 1
End Page 4
ISSN 1340-7414
language 日本語
Copyright Holders © 2012 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
NAID 120005232325