High-Resolution Reconstruction of Quaternary Crustal Movement Based on Sedimentary Facies Analysis: An Example from the Oga Peninsula, Northern Japan

Shirai, Masamitsu; Tada, Ryuji

doi:10.1306/102501720386

Cited by 4 publications

(6 citation statements)

References 25 publications

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“…At the Anden Coast, the dip angle decreases upward from 54°to 5°, suggesting that crustal tilting continued concurrently with sedimentation (Shirai and Tada, 2002). In addition, Shirai and Tada (2002) have showed that subsidence around the Anden Coast was caused mainly by the crustal tilting with a fixed tilting hinge associated with folding after ca. 450 ka.…”

Section: Causes Of Environmental Changesmentioning

confidence: 97%

“…Many studies on the middle-upper Pleistocene Shibikawa and Katanishi formations have been performed in the Anden Coast and Wakimoto area (1-3 in Fig. 1C), including tephrochronology (Shiraishi et al, 1992;, stratigraphy (Okada, 1979;Tada, 1997, 2000) and investigation on crustal movement (Shirai and Tada, 2002). In particular, Shirai and Tada (2000) have described sedimentary facies from a continuous section along the Anden Coast and estimated depositional environments and water depths of each sedimentary facies.…”

Section: Geology and Stratigraphymentioning

confidence: 99%

“…450 ka. The eastern part of the Anden Coast is located between the tilting hinge (Shirai and Tada, 2002) and syncline axis which has been estimated from distribution of the Shibikawa and Wakimoto formations (Kano et al, 2011). The Anden Coast, therefore, was a moderately land-locked basin during deposition of facies H* (Fig.…”

Section: Causes Of Environmental Changesmentioning

confidence: 99%

“…The Oga Peninsula is a type locality for Quaternary sediments of Japan Sea side of northern Japan (Kano et al, 2011). In particular, the Oga Peninsula bears continuous shallow-marine successions that have been uplifted above present sea-level as a result of crustal movements (Shirai and Tada, 2002). In addition, the successions are rich in well-preserved mollusk fossils (Ogasawara et al, 1986), making these successions suitable for the study of mollusk assemblages and environmental reconstructions.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, available literature on sedimentary successions from tectonically active regions shows that basin tectonics as well as glacio-eustatic sea-level changes affect water depth and sedimentation (e.g., Ito et al, 1999;Zecchin, 2005). Because the Oga Peninsula is characterized by active crustal movements during the Quaternary period (Shirai and Tada, 2002), we expect the crustal movements cause environmental changes. If so, the environmental changes caused by crustal movements can be recognized by looking at composition of the mollusk assemblages, as they can be sensitive to the environmental changes (e.g., Dominici, 2001).…”

Section: Introductionmentioning

confidence: 99%

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Recognizing cryptic environmental changes by using paleoecology and taphonomy of Pleistocene bivalve assemblages in the Oga Peninsula, northern Japan

2014

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Multivariate analyses applied to Pleistocene bivalve assemblages from the Oga Peninsula (northern Japan) discriminate three distinct assemblages. The assemblages and their taphonomy were used to recognize environmental settings and changes. The Astarte–Cyclocardia–Glycymeris assemblage indicates shelf environment (below the storm wave base) where gravels and shells are transported from shallower settings. Supply of the exotic coarse sediment probably enabled epifaunal bivalves to inhabit the sea floor. The Glycymeris assemblage is characterized by dominance of G. yessoensis and represents current-swept shoreface environment (above the storm wave base). The Moerella assemblage is characterized by bivalves inhabiting bay to open-marine conditions and diverse deposit-feeders, indicating a moderately land-locked environment, such as an open bay or a bay mouth. Fine-grained substrata rich in organic matters in the bay were probably suitable for the deposit-feeders. Ordination also shows the assemblages along two environmental gradients, a bathymetrical one and the other related to open-marine and bay conditions. The environmental changes are explained mainly by glacio-eustatic sea-level changes and alternation of coastal geomorphology caused by local crustal movements. This study also suggests that fossil assemblages can be a powerful tool to reconstruct environments and depositional dynamics even in intensely bioturbated sedimentary facies.

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Section: Causes Of Environmental Changesmentioning

confidence: 97%

Section: Geology and Stratigraphymentioning

confidence: 99%

Section: Causes Of Environmental Changesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Recognizing cryptic environmental changes by using paleoecology and taphonomy of Pleistocene bivalve assemblages in the Oga Peninsula, northern Japan

2014

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Testing the application of quartz and feldspar luminescence dating to MIS 5 Japanese marine deposits

Thiel

Tsukamoto

Tokuyasu

et al. 2015

Quaternary Geochronology

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Climate-mediated changes in predator–prey interactions in the fossil record: a case study using shell-drilling gastropods from the Pleistocene Japan Sea

Chiba

Sato

2016

Paleobiology

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Paleoecological studies enhance our understanding of biotic responses to climate change because they consider long timescales not accessible through observational and experimental studies. Using predatory drillholes produced on fossil bivalve shells by carnivorous gastropods, we provide an example of how climate change affected predator–prey interactions. We quantitatively examine temporal changes in fossil molluscan assemblages and predation patterns from the Pleistocene Japan Sea, which experienced drastic environmental changes in relation to glacial–interglacial climate cycles. We found significant changes in predation patterns associated with a decline in the abundance of warm-water molluscan species. Climate-mediated fluctuations in the eustatic sea level and resultant weakening of the Tsushima Warm Current caused a decline in a warm-water shell-drilling predator, which moderated the predation pressure and size relationship between the predators and the bivalve prey. Our results indicate that climate-mediated range shifts of species in present-day and future marine ecosystems can likewise increase altered predator–prey interactions.

show abstract

High-Resolution Reconstruction of Quaternary Crustal Movement Based on Sedimentary Facies Analysis: An Example from the Oga Peninsula, Northern Japan

Cited by 4 publications

References 25 publications

Recognizing cryptic environmental changes by using paleoecology and taphonomy of Pleistocene bivalve assemblages in the Oga Peninsula, northern Japan

Recognizing cryptic environmental changes by using paleoecology and taphonomy of Pleistocene bivalve assemblages in the Oga Peninsula, northern Japan

Testing the application of quartz and feldspar luminescence dating to MIS 5 Japanese marine deposits

Climate-mediated changes in predator–prey interactions in the fossil record: a case study using shell-drilling gastropods from the Pleistocene Japan Sea

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