Cambrian plutonism in Northeast Japan and its significance for the earliest arc-trench system of proto-Japan: New U–Pb zircon ages of the oldest granitoids in the Kitakami and Ou Mountains

Isozaki, Yukio; Ehiro, Masayuki; Nakahata, Hiroki; Aoki, Kazumasa; Sakata, Shuhei; Hirata, Takafumi

doi:10.1016/j.jseaes.2015.04.024

Cited by 50 publications

(19 citation statements)

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“…The former comprises arc granitoids of Cambrian age both in Southwest and Northeast Japan; e.g. the 500 Ma Hikawa granitoid in Kyushu (Sakashima, Terada, Takeshita, & Sano, ), > 500 Ma Hitachi meta‐granitoid in northern Kanto (Sakashima et al, ; Tagiri, Dunkley, Adachi, Hiroi, & Fanning, ), and 510–490 Ma Shoboji‐Isawagawa‐Horei granitoids in the Kitakami Mountains (Isozaki et al, ; Tsuchiya, Takeda, & Sasaki, ; Figure a,b), which are accurately constrained by zircon U–Pb dating. Their geochemical signature suggests their origin in arc‐related magmatism (Kanisawa & Ehiro, ).…”

Section: The Oldest Elements In Japanmentioning

confidence: 99%

“…Emphases are given to the timing of onset of oceanic subduction in the Cambrian along the Japan margin, and also to the Pacific‐side margin of the South China block that accommodated the development of the Paleozoic arc‐trench system. Summarizing all these, the significance of Greater South China (GSC; Isozaki, Aoki, Sakata, & Hirata, , Isozaki et al, , ) is discussed particularly with respect to paleogeographical implications to the relative positions of major continental blocks in East Asia and to the Paleozoic faunal provincialism.…”

Section: Introductionmentioning

confidence: 99%

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A visage of early Paleozoic Japan: Geotectonic and paleobiogeographical significance of Greater South China

Isozaki

2019

Island Arc

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The current state of knowledge on the early Paleozoic evolution of Japan is reviewed. Although early Paleozoic Japan marked the foundation of long‐lasting subduction‐related orogenic growth throughout the Phanerozoic, details of this have not been fully revealed. Nevertheless, U‐Pb dating of zircons both in Paleozoic granitoids and sandstones is revealing several new aspects of early Paleozoic Japan. The timing of the major tectonic change, from a passive continental margin setting (Stage I) to an active one (Stage II), was constrained to the Cambrian by identifying the oldest arc granitoid, high‐P/T blueschist, and terrigenous clastics of arc‐related basins. Ages of recycled zircons in granitoids and sandstones provided critical information on the homeland of Japan, i.e. the continental margin along which proto‐Japan began to grow. The early Paleozoic continental margin that hosted the development of an arc‐trench system in proto‐Japan had cratonic basement composed mostly of Proterozoic crust with a minor Archean component. The predominant occurrence of Neoproterozoic zircons in Paleozoic rocks, as xenocrysts in arc granitoids and also as detrital grains in terrigenous clastics, indicates that the relevant continental block was a part of South China, probably forming a northeastern segment of Greater South China (GSC) together with the Khanka/Jiamsi/Bureya mega‐block in Far East Asia. GSC was probably twice as large as the present conterminous South China on mainland Asia. Paleozoic Japan formed a segment of a mature arc‐trench system along the Pacific side of GSC, where the N–S‐trending Pacific‐rim orogenic belt (Nipponides) developed with an almost perpendicular relationship with the E–W‐trending Central Asian orogenic belt. The faunal characteristics of the Permian marine fauna in Japan, both with the Tethyan and Boreal elements, can be better explained than before in good accordance with the relative position of GSC with respect to the North China block during the late Paleozoic.

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Section: The Oldest Elements In Japanmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A visage of early Paleozoic Japan: Geotectonic and paleobiogeographical significance of Greater South China

Isozaki

2019

Island Arc

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“…The origin of Palaeozoic and Mesozoic sedimentary rocks of the Japanese Islands has been a controversial topic for a long time. Recently, the South China Block has been regarded as the major source of these sedimentary rocks from the analysis of detrital zircons (Isozaki et al 2014(Isozaki et al , 2015(Isozaki et al , 2017Aoki et al 2015b). However, there has been no research work to compile and analyse the detrital zircon data of various published sources.…”

Section: Accretionary History and Detrital Zircon Datamentioning

confidence: 99%

“…The geological history of the Japanese Islands has been investigated extensively through multidisciplinary studies by different researchers and research teams (Isozaki, 1996(Isozaki, , 1997a(Isozaki, , b, 2014Maruyama et al 1997Maruyama et al , 2009Maruyama et al , 2011Isozaki et al 2010aIsozaki et al , b, 2014Isozaki et al , 2015Isozaki et al , 2017Aoki et al 2011Aoki et al , 2012Aoki et al , 2014Aoki et al , 2015aWakita, 2013Wakita, , 2015Wakita, , 2018. The results of these studies have shown that the main mode of the geodynamic evolution of the Japanese Islands was through plate subduction during the entire Phanerozoic.…”

Section: Introductionmentioning

confidence: 99%

Phanerozoic accretionary history of Japan and the western Pacific margin

Wakita

Nakagawa

Sakata³

et al. 2018

Geol. Mag.

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It is generally accepted that oceanic plate subduction has occurred along the eastern margin of Asia since about 500 Ma ago. Therefore, the Japanese Islands have a >500 Ma history of oceanic plate subduction in their geological records. In this paper, the accretionary history of the Japanese Islands is divided into six main stages based on the mode and nature of tectonic events and the temporal gaps in the development of accretionary processes. In the first stage, oceanic plate subduction and accretion started along the margin of Gondwana. After detachment of the North and South China blocks in Devonian time, accretionary complexes developed along island arcs offshore of the South and North China blocks. After the formation of back arc basins such as the Japan Sea, accretionary processes occurred only along the limited convergent margin, e.g. Nankai Trough. Detrital zircons of sandstones revealed the accretionary history of Japan. An evaluation of a comprehensive dataset on detrital zircon populations shows that the observed temporal gaps in the development of the Japanese accretionary complexes were closely related to the intensity of igneous activity in their provenance regions. Age distributions of detrital zircons in the accretionary complexes of Japan change before and after the Middle Triassic period, when the collision of the South and North China blocks occurred.

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“…Greater Cathaysia Block was subsequently removed through multiple episodes of subduction erosion during the Mesozoic (Fig. 14; Isozaki et al, 2010;Isozaki et al, 2014;Aoki et al, 2015;Isozaki et al, 2015 Li et al, 2012;Liang et al, 2013;Hu et al, 2015a) were likely derived from an eastern magmatic arc source related to the subduction of the Paleo-Pacific plate beneath the eastern-southeastern margin of China Li et al, 2012;Hu et al, 2015a).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Permo-Triassic detrital records of South China and implications for the Indosinian events in East Asia

Cawood

et al. 2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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Provenance analyses of Lower to Middle Triassic strata from the Greater Youjiang Basin along with the Permian strata of Hainan Island, provide a record of the collisional assembly of the South China Craton and Indochina Block and their incorporation into Asia. Detrital zircons from Lower and Middle Triassic samples show similar overall age spectra ranging from Archean to Triassic with major age groups at 300-250 Ma, 480-420 Ma, and 1200-900 Ma, as well as at 400-300 Ma in one Triassic sample. Permian siltstones from Hainan Island, to the southeast of the Greater Youjiang Basin, record different age spectra with major age groups at 400-300 Ma and 530-420 Ma and subordinate components at 1200-900 Ma and 1900-1700 Ma. These age data in combination with available paleocurrent data and regional geological relations suggest that Precambrian detrital zircons were derived from the Precambrian basement or recycled from the overlying early Paleozoic sedimentary

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Cambrian plutonism in Northeast Japan and its significance for the earliest arc-trench system of proto-Japan: New U–Pb zircon ages of the oldest granitoids in the Kitakami and Ou Mountains

Cited by 50 publications

References 67 publications

A visage of early Paleozoic Japan: Geotectonic and paleobiogeographical significance of Greater South China

A visage of early Paleozoic Japan: Geotectonic and paleobiogeographical significance of Greater South China

Phanerozoic accretionary history of Japan and the western Pacific margin

Permo-Triassic detrital records of South China and implications for the Indosinian events in East Asia

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