Geochemistry of Jurassic to earliest Cretaceous deposits in the Nagato Basin, SW Japan: implication of factor analysis to sorting effects and provenance signatures

Ohta, Tohru

doi:10.1016/j.sedgeo.2004.05.014

Cited by 43 publications

(22 citation statements)

References 38 publications

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“…The extent of sediment recycling is not well constrained for Mars, but it is not believed to play a significant role as it does on Earth [McLennan and Grotzinger, 2008]. Although sorting of grains during transport and later diagenetic processes Journal of Geophysical Research: Planets 10.1002/2016JE005195 can obscure provenance, the initial size distributions of different mineral phases are controlled by the textures of the source rocks (e.g., volcanic versus plutonic), so the extent of sorting by grain size and density depends heavily on provenance [Ohta, 2004;Fedo et al, 2015].…”

Section: Major Influences On the Composition Of The Bradbury Groupmentioning

confidence: 99%

Sorting out compositional trends in sedimentary rocks of the Bradbury group (Aeolis Palus), Gale crater, Mars

et al. 2017

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Sedimentary rocks are composed of detrital grains derived from source rocks, which are altered by chemical weathering, sorted during transport, and cemented during diagenesis. Fluvio‐lacustrine sedimentary rocks of the Bradbury group, observed on the floor of Gale crater by the Curiosity rover during its first 860 Martian solar days, show trends in bulk chemistry that are consistent with sorting of mineral grains during transport. The Bradbury group rocks are uniquely suited for sedimentary provenance analysis because they appear to have experienced negligible cation loss (i.e., open‐system chemical weathering) at the scale of the Alpha Particle X‐ray Spectrometer bulk chemistry analyses based on low Chemical Index of Alteration values and successful modeling of >90% of the (volatile‐free) targets as mixtures of primary igneous minerals. Significant compositional variability between targets is instead correlated to grain‐size and textural characteristics of the rocks; the coarsest‐grained targets are enriched in Al2O3, SiO2, and Na2O, whereas the finer‐grained targets are enriched in mafic components. This is consistent with geochemical and mineralogical modeling of the segregation of coarse‐grained plagioclase from finer‐grained mafic minerals (e.g., olivine and pyroxenes), which would be expected from hydrodynamic sorting of the detritus from mechanical breakdown of subalkaline plagioclase‐phyric basalts. While the presence of a distinctive K2O‐rich stratigraphic interval shows that input from at least one distinctive alkali‐feldspar‐rich protolith contributed to basin fill, the dominant compositional trends in the Bradbury group are consistent with sorting of detrital minerals during transport from relatively homogeneous plagioclase‐phyric basalts.

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Section: Major Influences On the Composition Of The Bradbury Groupmentioning

confidence: 99%

Sorting out compositional trends in sedimentary rocks of the Bradbury group (Aeolis Palus), Gale crater, Mars

et al. 2017

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“…In addition, Japanese Lower Jurassic sandstones commonly include pyrope‐rich almandine garnet, which originated from granulite facies metapelites (Kumazaki & Kojima, ; Takeuchi, , b). High‐pressure metapelite‐origin garnets and chromian spinels of ultramafic rock origin have been also recognized (Kumazaki & Kojima, ; Ohta, ; Takeuchi, ). Such petrological characteristics suggest that the composite provenance was composed of a volcanic arc with associated pelitic granulite, ophiolite, and high‐pressure metamorphic rocks (Kamikubo & Takeuchi, ).…”

Section: Discussionmentioning

confidence: 99%

“…In summary, the main sources of detrital zircon grains in the analysed sandstone from the Nishinakayama Formation were (1) tuff and/or tuffaceous material derived from an active (syndepositional) Early Jurassic volcanic arc, (2) older (Early Jurassic and Early Permian–Late Triassic) batholith belt(s), and (3) the North China Craton. To further consider the tectonic setting of the Toyora sedimentary basin, it is helpful to refer to petrological and geochemical data of the sandstones from the Nishinakayama Formation, which have been reported by previous studies (Ohta, ; Yu, ; see also Figure ). According to these geochemical data, the tectonic setting of the Toyora sedimentary basin can be classified as an active continental margin (Ohta, ; Figure a).…”

Section: Discussionmentioning

confidence: 99%

“…Owing to its utility for understanding the T‐OAE, it is important to precisely constrain the geological background, especially the palaeogeographic and tectonic setting, of the Toyora sedimentary basin. One of the most useful approaches to constrain the palaeogeographic and tectonic setting is provenance analysis, which has generally been based on palaeobiogeographic, geochemical, and mineralogical approaches (Kamikubo & Takeuchi, ; Ohta, ; Tazawa, ). In the last two decades, detrital zircon U–Pb geochronology has been applied to provenance analysis problems in sedimentary basins (Aoki et al, , Aoki et al, ; Clift et al, ; Dickinson & Gehrels, , b; Gehrels et al, ; Isozaki, Aoki, Nakama, & Yanai, ; Isozaki, Maruyama, et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…In the last two decades, detrital zircon U–Pb geochronology has been applied to provenance analysis problems in sedimentary basins (Aoki et al, , Aoki et al, ; Clift et al, ; Dickinson & Gehrels, , b; Gehrels et al, ; Isozaki, Aoki, Nakama, & Yanai, ; Isozaki, Maruyama, et al, ). Thus far, only a few studies have investigated the potential provenance of the Toyora Group (Kamikubo & Takeuchi, ; Ohta, ), and the precise palaeogeographic location and tectonic setting of the Nishinakayama Formation are still uncertain.…”

Section: Introductionmentioning

confidence: 99%

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Palaeogeographic and tectonic setting of the Lower Jurassic (Pliensbachian‐Toarcian) Nishinakayama Formation, Toyora Group, SW Japan

et al. 2019

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The palaeogeographic and tectonic setting of the Lower Jurassic Nishinakayama Formation (Toyora Group, southwest Japan) is interpreted based on new U–Pb ages for detrital zircon grains separated from a sandstone sample, combined with available provenance data. The newly obtained age spectrum of detrital zircon grains is characterized by multiple age clusters. Specifically, (1) nearly syndepositional (Lower Jurassic; 182–200 Ma), (2) Early Permian to Late Triassic (205–288 Ma), and (3) Precambrian (1,855–2,660 Ma). The youngest zircon age (182.4 ± 5.1 Ma) is consistent with the biostratigraphically constrained depositional age (falciferum ammonite Zone, lower Toarcian). The presence of a near‐syndepositional age cluster, as well as the presence of volcanic tuff layers in the studied succession, indicates the likely extensive influence of an active volcanic arc in the depositional area. The age cluster of 205–288 Ma suggests, in contrast, that older granitic batholiths were also being sourced. Precambrian detrital zircon grains would have been derived from continental blocks with mainly Proterozoic crusts, most likely from the North China Craton. When combined with available geochemical, petrological, and palaeontological data, our detrital zircon data demonstrate that deposition of the Nishinakayama Formation was located at an active continental margin, possibly close to the northern extremity of the South China Craton. Abundant terrigenous clastics were likely supplied to the sedimentary basin from the Qinling‐Dabieshan‐Sulu Suture Zone, which was formed by the collision of the North and South China cratons.

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Sedimentological, modal analysis and geochemical studies of desert and coastal dunes, Altar Desert, NW Mexico

Kasper‐Zubillaga

Zolezzi-Ruiz

Carranza‐Edwards

et al. 2006

Earth Surf Processes Landf

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Sedimentological, compositional and geochemical determinations were carried out on 54 desert and coastal dune sand samples to study the provenance of desert and coastal dunes of the Altar Desert, Sonora, Mexico. Grain size distributions of the desert dune sands are influenced by the Colorado River Delta sediment supply and wind selectiveness. The desert dune sands are derived mainly from the quartz-rich Colorado River Delta sediments and sedimentary lithics. The dune height does not exert a control over the grain size distributions of the desert dune sands. The quartz enrichment of the desert dune sands may be due to wind sorting, which concentrates more quartz grains, and to the aeolian activity, which has A cluster analysis shows that the El Pinacate group is significantly different from the rest of the dune sands in terms of the grain-size parameters due to longer transport of the sands and the long distance from the source sediment, whereas the Puerto Peñasco coastal dune

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Geochemistry of Jurassic to earliest Cretaceous deposits in the Nagato Basin, SW Japan: implication of factor analysis to sorting effects and provenance signatures

Cited by 43 publications

References 38 publications

Sorting out compositional trends in sedimentary rocks of the Bradbury group (Aeolis Palus), Gale crater, Mars

Sorting out compositional trends in sedimentary rocks of the Bradbury group (Aeolis Palus), Gale crater, Mars

Palaeogeographic and tectonic setting of the Lower Jurassic (Pliensbachian‐Toarcian) Nishinakayama Formation, Toyora Group, SW Japan

Sedimentological, modal analysis and geochemical studies of desert and coastal dunes, Altar Desert, NW Mexico

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