Paleozoic ultramafic volcanic rocks of superplume origin in the accretionary complexes of Japan and its vicinity

这项研究的结果已经作为许多国际期刊论文发表。Ichiyama & Ishiwatari（2005）报道了侏罗纪母增生杂岩中memeecite （Ti和富hfse的苦橄辉石）的地质产状、化学和矿物学特征，并讨论了其成因为二叠纪超羽岩浆作用。Koizumi和Ishiwatari（2006）报道了侏罗纪Tamba增生杂岩中绿岩的两种不同的产状和化学性质，即基底推覆体型和杂岩型，并将其起源分别归因于海洋高原和正常海洋浮子。Ichiyama等（2006）报道了Tamba带增生绿岩中出现的硅铁铁矿的化学和同位素组成。Ichiyama et at（2007）进一步从显生界首次报道了同一地区的橄榄石-刺状玄武岩，并与科拉半岛佩城加地区的类似元古代岩石和刺状玄武岩繁殖实验结果进行了对比，讨论了其地质意义。Ichiyama et at（2008）根据不同的Ti浓度将基底推覆型绿岩划分为3组，并讨论了它们与二叠纪大洋区超级羽头尾岩浆活动的地质化学演化。相关成果包括Ishiwatari等（2006）首次报道了伊扎-博宁-马里亚纳弧中埃达奇岩Sr的出现，描述了其火山岩、辉长岩和橄榄岩的分布和化学矿物学多样性，并提出了博宁前弧中Hahajima海山是由于小笠原高原的碰撞俯冲而抬升的由多个蛇绿冲断片组成的主体块体模型。Yanagida et al.（2007）报道了从南马里亚纳海沟陆坡淘来的变质橄榄岩中的Mg-cummingtonite，显示出极宽的矿物化学多样性和较低的地幔橄榄岩平衡温度，并提出在海沟斜坡上暴露出弧前-弧后的地幔剖面。Ishiwatari等人（2007）报道了俄罗斯东北部Pekulney山脉非常罕见的大型石榴石橄榄岩-超镁铁质复合体。少

The results of this study are already published as many international journal papers. Ichiyama & Ishiwatari (2005) reported geological occurrence, chemistry and mineralogy of meimechite (Ti and HFSE-rich picrite) from the Jurassic Mum accretionary complex, and discussed its origin in the Permian superplume magmatism. Koizumi & Ishiwatari (2006) reported two contrasting occurrences and chemistry of greenstones in the Jurassic Tamba accretionary complex, namely basal nappe type and melange type, and attributed their origin to oceanic plateau and normal ocean float respectively Ichiyama, et al. (2006) reported chemical and isotopic composition of ferropicrites occurring in the accreted greenstones of the Tamba belt, and discussed their origin in relation to the Permian superplume magmatism in the oceanic area Ichiyama et at (2007) further reported olivine-spinifex basalt from the same area for the first time from the Phanerozoic, and discussed its geological significance in comparison wit … More h the similar Proterozoic rock occurring in the Pechenga area, Kola Peninsula and the results of spinifex reproduction experiments. Ichiyama et at (2008) divided basal nappe-type greenstones into 3 groups by distinct Ti concentration% and discussed their geological and chemical evolution in relation to the magmatism of a superplume's head and tail in the Permian oceanic area. Our related results include Ishiwatari, et al. (2006), which reported occurrence of adakite Sr the first time from the Izu-Bonin-Mariana arc, depicted distribution and chemical-mineralogical diversity of volcanic rocks, gabbros and peridotites, and presented a model that the Hahajima Seamount in the Bonin Forearc is a horst block composed of several ophiolitic thrust sheets that was uplifted due to collisional subduction of the Ogasawara Plateau. Yanagida et al. (2007) reported Mg-cummingtonite from metaperidotites dredged from the landward slope of the southern Mariana Trench, showed extremely wide mineral-chemical diversity and low equilibration temperatures of the mantle peridotites, and proposed that a forearc-backarc mantle section is exposed on the trench slope. Ishiwatari et at (2007) reported very rare, large-scale garnet peridotite-ultramafic complexes from the Pekulney Range, northeastern Russia. Less