An adakitic pluton on Kyushu Island, southwest Japan arc

Kamei, Atsushi

doi:10.1016/j.jseaes.2003.07.001

Cited by 53 publications

(31 citation statements)

References 48 publications

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“…Alternatively, they correspond to granitoids and their volcanic equivalents that result from pre-or post-collisional geodynamic events (Brown & D'Lemos 1991;Li & Li 2003;Kamei 2004;Karsli et al 2007). However, the intra-ophiolitic acid rocks of north Kozara show important differences with respect both to the plagiogranites and the pre-to post-collisional granites.…”

Section: The Origin Of Acid Magmatism: a Petrogenetic Link To The Basmentioning

confidence: 99%

The Upper Cretaceous ophiolite of North Kozara – remnants of an anomalous mid-ocean ridge segment of the Neotethys?

Cvetković¹,

Šarić²,

Grubić³

et al. 2014

Geologica Carpathica

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This study sheds new light on the origin and evolution of the north Kozara ophiolite, a part of the Sava-Vardar Zone. The Sava-Vardar Zone is regarded as a relict of the youngest Tethyan realm in the present-day Balkan Peninsula. The north Kozara ophiolite consists of a bimodal igneous association comprising isotropic to layered gabbros, diabase dykes and basaltic pillow lavas (basic suite), as well as relicts of predominantly rhyodacite lava flows and analogous shallow intrusions (acid suite). The rocks of the basic suite show relatively flat to moderately light-REE enriched patterns with no or weak negative Eu-anomaly, whereas those of the acid suite exhibit steeper patterns and have distinctively more pronounced Eu-and Sr-negative anomalies. Compared to the known intra-ophiolitic granitoids from the Eastern Vardar Zone, the acid suite rocks are most similar to those considered to be oceanic plagiogranites. The new geochemical data suggest that the basic suite rocks are similar to enriched mid-ocean ridge basalts. The geochemical characteristics of the acid suite rocks indicate that their primary magmas most probably originated via partial melting of gabbros from the lower oceanic crust. Our study confirms the oceanic nature of the north Kozara Mts rock assemblage, and suggests that it may have formed within an anomalous ridge setting similar to present-day Iceland.

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Section: The Origin Of Acid Magmatism: a Petrogenetic Link To The Basmentioning

confidence: 99%

The Upper Cretaceous ophiolite of North Kozara – remnants of an anomalous mid-ocean ridge segment of the Neotethys?

Cvetković¹,

Šarić²,

Grubić³

et al. 2014

Geologica Carpathica

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show abstract

“…These observations indicate that the basement granitoids of the Aso area cooled at the same time as Cretaceous granitoids in central Kyushu. da, 1963;Matsumoto and Fujimoto, 1969;Sasada, 1987). Filled circles in the inset indicate outcrops of basement rocks (Sasada, 1987 (Kamei, 2002(Kamei, , 2004.…”

mentioning

confidence: 99%

阿蘇カルデラ内北西部ボーリングコア基盤岩類の岩石学的特徴およびK–Ar年代

Miyoshi

Yuguchi

Shinmura

et al. 2011

Jour. Geol. Soc. Japan

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“…67 (2), 2016 A Bulletin of the Geological Survey of Japan,vol. 67 (2) et al, 2000) and Ryoke belt (Katsuragi Granitoids; Nishioka, 2008), also in the northern part of the Kyushu District (Izawa et al, 1990;Yada and Owada, 2003;Kamei, 2004). Ba may have the same trend as the Sr plotted, but the figure is somewhat erratic (Fig.…”

Section: Results Of Analyses and Discussion On The North-south Chemicamentioning

confidence: 94%

Geochemical variation of the Late Cretaceous-Paleogene granitoids across the Ehime-Hiroshima-Shimane transect, Japan

Ishihara

Ohno

2016

Bull. Geol. Surv. Japan

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An adakitic pluton on Kyushu Island, southwest Japan arc

Cited by 53 publications

References 48 publications

The Upper Cretaceous ophiolite of North Kozara – remnants of an anomalous mid-ocean ridge segment of the Neotethys?

The Upper Cretaceous ophiolite of North Kozara – remnants of an anomalous mid-ocean ridge segment of the Neotethys?

阿蘇カルデラ内北西部ボーリングコア基盤岩類の岩石学的特徴およびK–Ar年代

Geochemical variation of the Late Cretaceous-Paleogene granitoids across the Ehime-Hiroshima-Shimane transect, Japan

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