Cenozoic strontium isotope stratigraphy in the MITI Soma-oki well, northeastern Japan.

進, 加藤; 孝一, 田澤; 孝教, 中野

doi:10.5575/geosoc.103.1046

Cited by 6 publications

(4 citation statements)

References 8 publications

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“…western onshore part has comprehensively been compiled by [17] with thorough consideration of the newest geologic age data set. The offshore stratigraphy has been reported by [15,18,19], using few well datasets including isotope and microfossil geologic age information. Figure 8 demonstrates the basin-filling stratigraphy and major unconformity horizons both in the onshore and offshore parts of the Cenozoic Joban forearc basin.…”

Section: Basin-filling Stratigraphymentioning

confidence: 99%

Intermittent Formation, Sedimentation and Deformation History of Cenozoic Forearc Basins along the Northwestern Pacific Margins as an Indicator of Tectonic Scenarios

Takano¹

2017

Dynamics of Arc Migration and Amalgamation - Architectural Examples From the NW Pacific Margin

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This chapter examines the basin-filling stratigraphy and major unconformity events of the Cenozoic forearc basins in the NE Japan, SW Japan, Ryukyu and Izu-Bonin forearc territories along the northwestern Pacific margins to obtain information on the background tectonic scenarios along the plate subduction zones. The forearc basin type and tectonic history are characteristic for each forearc territory, reflecting the differences in plate tectonic processes. Several major unconformity events seem to be synchronous for a forearc territory or whole forearc territories around Japan, suggesting that these events originated from more or less wider scale plate tectonic events. In the NE Japan forearc territory, the Oligocene unconformity can be the largest events, which transformed the forearc basin styles from the trench slope break-uplifted, fluvial system-dominated type to the tensional, deeper marine sloped type. In the SW Japan and Ryukyu forearc territories, the latest Oligocene to Middle Miocene gap was the transformation phase from the Palaeogene Shimanto-type forearc and accretionary complex, to the Neogene compressive, sloped to ridged forearc basins, developments of which have been interrupted by several unconformity events possibly related to changes in plate tectonic condition. These transformations of the forearc basin styles may reflect the changes in plate tectonic conditions in the northwestern Pacific region.

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Section: Basin-filling Stratigraphymentioning

confidence: 99%

Intermittent Formation, Sedimentation and Deformation History of Cenozoic Forearc Basins along the Northwestern Pacific Margins as an Indicator of Tectonic Scenarios

Takano¹

2017

Dynamics of Arc Migration and Amalgamation - Architectural Examples From the NW Pacific Margin

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“…Unit F, found in the interval from 1562 to 2450 mMD at MITI Well-S, is correlative to Paleogene based on pollen biostratigraphic analysis. Its coaly lithofacies suggest that Unit F is equivalent to the coal-bearing Paleogene strata outcropping at the adjoining onshore area [18,22].…”

Section: Stratigraphic Control Of Seismic Unitsmentioning

confidence: 99%

“…From Unit E, recognized in the interval from 625 to 1345 mMD at MITI Well-J and the interval from 82 to 1562 mMD at MITI Well-S, Early Miocene diatom fossils and calcareous nannofossils and radioralian fossils have been reported [17,18,22].…”

Section: Stratigraphic Control Of Seismic Unitsmentioning

confidence: 99%

“…Upper Miocene strata with a vertical thickness of 57 m were detected in the interval between depths 525 and 582 m MSL below D2 at MITI Well-S, and are unconformably underlain by Middle Miocene units [18]. Based on the stratigraphic data from the well drilled near position pE-3 this interval corresponds to the lower portion of the Upper Miocene [22,28]. The unconformity between the Middle Miocene and the lower part of the Upper Miocene is also truncated by the erosion that occurred on the D2 surface.…”

Section: Formation Age Of the Discontinuitymentioning

confidence: 99%

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Cenozoic Fault Zone Activity and Geologic Evolution of the Offshore Regions of Fukushima and Miyagi Prefectures, Northeastern Japan, Based on Petroleum Exploration Data

Arato¹

2017

Evolutionary Models of Convergent Margins - Origin of Their Diversity

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Three major fault zones were identified in the offshore regions of Fukushima and Miyagi prefectures, northeastern Japan, from petroleum exploration seismic and well data acquired by the Ministry of Economy, Trade and Industry (METI) and its predecessor: the Kesennuma tectonic line (KTL), the Ishinomaki tectonic line (ITL), and the Joban tectonic line (JTL). The stratigraphic relationships indicate that these tectonic lines were activated during the Middle Miocene, and that their activity was likely closely connected with the opening of the Japan Sea and the drifting of the northeast Japan arc to its current position. Parts of these tectonic lines were reactivated during the Late Pliocene and Quaternary in the Sendai Bay area.

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Fluvial architecture and sequence stratigraphy of the Eocene to Oligocene Iwaki Formation, northeast Japan: channel-fills related to the sea-level change

Komatsubara

2004

Sedimentary Geology

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Cenozoic strontium isotope stratigraphy in the MITI Soma-oki well, northeastern Japan.

Cited by 6 publications

References 8 publications

Intermittent Formation, Sedimentation and Deformation History of Cenozoic Forearc Basins along the Northwestern Pacific Margins as an Indicator of Tectonic Scenarios

Intermittent Formation, Sedimentation and Deformation History of Cenozoic Forearc Basins along the Northwestern Pacific Margins as an Indicator of Tectonic Scenarios

Cenozoic Fault Zone Activity and Geologic Evolution of the Offshore Regions of Fukushima and Miyagi Prefectures, Northeastern Japan, Based on Petroleum Exploration Data

Fluvial architecture and sequence stratigraphy of the Eocene to Oligocene Iwaki Formation, northeast Japan: channel-fills related to the sea-level change

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