Migrating shoshonitic magmatism tracks Izu–Bonin–Mariana intra-oceanic arc rift propagation

Ishizuka, Osamu; Yuasa, Motohiro; Tamura, Yoshihiko; Shukuno, H.; Stern, Robert J.; Naka, Jiro; Joshima, Masato; Taylor, Rex N.

doi:10.1016/j.epsl.2010.03.016

Cited by 87 publications

(51 citation statements)

References 46 publications

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“…Isotopic compositions of KPR volcanics. Data source for Philippine Sea MORB: Hickey‐Vargas [1991, 1998], Savov et al [2006], and Ishizuka et al [2009, 2010]. Izu‐Bonin arc: Taylor and Nesbitt [1998], Ishizuka et al [2003c, 2006, 2008], Tamura et al [2005, 2007, 2009], and Yokoyama et al [2003, 2006].…”

Section: Age and Geochemistry Of Kyushu‐palau Ridge Volcanics And Relmentioning

confidence: 99%

Making and breaking an island arc: A new perspective from the Oligocene Kyushu‐Palau arc, Philippine Sea

Ishizuka

Taylor

Yuasa

et al. 2011

Geochem Geophys Geosyst

142

202

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[1] The Kyushu-Palau Ridge (KPR) is a 2600 km long remnant island arc that is separated from the active Izu-Bonin-Mariana (IBM) arc by a series of spreading and rift basins. We present 40 Ar/ 39 Ar ages and geochemical data for the entire length of the Kyushu-Palau arc as well as for the conjugate arc which is stranded within the IBM fore arc. New 40 Ar/ 39 Ar ages indicate that the KPR was active between 25 and 48 Ma, but the majority of the exposed volcanism occurred in the final phase, between 25 and 28 Ma. Rifting of the Kyushu-Palau arc to form the Shikoku and Parece Vela basins occurred simultaneously along the length of the arc (circa 25 Ma), and at a similar distance from the trench. Unlike the IBM, the KPR has only limited systematic along-arc geochemical trends. Two geochemical components within the KPR indicate an origin in the suprasubduction mantle. First, EM-1-like lavas are identified in a restricted section of the arc, suggesting a localized heterogeneity. Second, EM-2-like arc volcanoes formed on juvenile West Philippine Basin crust, potentially reflecting ingress of mantle from the then active EM-2 province which lies in the west. Another geochemical heterogeneity is found at the KPR-Daito Ridge intersection where the arc developed on preexisting Cretaceous Daito Ridge crust. The geochemical characteristics at this intersection likely result from the involvement of sub-Daito Ridge lithospheric mantle. Subduction flux beneath the KPR generally matches post-45 Ma Eocene/Oligocene lavas in the IBM fore arc, involving fluids and melts derived from altered igneous crust.

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Section: Age and Geochemistry Of Kyushu‐palau Ridge Volcanics And Relmentioning

confidence: 99%

Making and breaking an island arc: A new perspective from the Oligocene Kyushu‐Palau arc, Philippine Sea

Ishizuka

Taylor

Yuasa

et al. 2011

Geochem Geophys Geosyst

142

202

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“…На дискриминационных диаграммах (рис. 6а-в) Ta/Yb−Th/Yb, Nb/Yb−Th/Yb и Nb/Yb−Ba/Yb (Ishizuka et al, 2010;Pearce, 1982) большинство фигуративных точек пород Кроноцкой палеодуги попадает в поля составов пород Идзу-Бонинской и Марианской островных дуг.…”

Section: обсуждение результатовunclassified

“…6. Соотношения Ta/Yb−Th/Yb (а) и Nb/Yb−Th/Yb (б) и Nb/Yb−Ba/Yb (в) (Ishizuka et al, 2010;Pearce, 1983) для вулкнических пород Кроноцкой палеодуги. Условные обозначения представлены на рис.…”

Section: обсуждение результатовunclassified

“…В последние годы на основе петролого-гео-химических и геолого-геофизических исследова-ний была создана объединенная модель магмоо-бразования в надсубдукционной области (Barth et al, 2017;Hauff et al, 2003;Hochstaedter et al, 2010;Ishizuka et al, 2006Ishizuka et al, , 2010Ishizuka et al, , 2011Kimura et al, 2008;Plank, 2005;Straub et al, 2004;Tollstrup et al, 2010). Такие исследования проводились в пределах Идзу-Бонинской островодужной системы, где отчетливо проявлена и хорошо изучена лате-ральная и поперечная зональности.…”

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Upper Cretaceous−eocene Volcanism of the Kronotskiy Paleoarc (Kamchatka)

Tsukanov¹

2018

Bulletin KRAESC. Earth Sciences

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New data on geochemistry, rear elements and isotopic conposition of the Kronotskiy paleoarc volcanic complexes were analyzed. Certain palaeoarc segments were revealed. Santonian−Campanian−Maastrichtian and Eocene volcanic complexes in the different segments were formed in the front zone of the Kronotskiy palaeoarc arc. Formation of the Cretaceous volcanic complexes in the southern palaeoarc segment, which is peculiar for its calc-alcali volcanites, is related to the geodynamical peculiarities of the subduction zone including less rate of melting and its deeper location. Low potassium tholeiite basalts mark the beginning of intra arc rift stage.

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“…Concentrations of Hf, Th and U were determined by ICP-MS on a VG Platform instrument at the Geological Survey of Japan/AIST following the method of Ishizuka et al (2010). About 100 mg of sample powder was dissolved in a HF-HNO 3 mixture (5:1) using screw-top Teflon beakers on hotplate, followed by fusion with Na 2 CO 3 (0.5 g) at 1,050℃.…”

Section: Methodsmentioning

confidence: 99%

Petrologic Study of Explosive Pyroclastic Eruption Stage in Shirataka Volcano, NE Japan: Synchronized Eruption of Multiple Magma Chambers

Ban¹,

Hirotani²,

Ishizuka³

et al. 2012

Petrology - New Perspectives and Applications

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Migrating shoshonitic magmatism tracks Izu–Bonin–Mariana intra-oceanic arc rift propagation

Cited by 87 publications

References 46 publications

Making and breaking an island arc: A new perspective from the Oligocene Kyushu‐Palau arc, Philippine Sea

Making and breaking an island arc: A new perspective from the Oligocene Kyushu‐Palau arc, Philippine Sea

Upper Cretaceous−eocene Volcanism of the Kronotskiy Paleoarc (Kamchatka)

Petrologic Study of Explosive Pyroclastic Eruption Stage in Shirataka Volcano, NE Japan: Synchronized Eruption of Multiple Magma Chambers

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