Journal ArticleDOI
Petrology of kaersutite-bearing ultramafic and mafic inclusions in Iki Island, Japan
Reads0
Chats0
TLDR
In this article, the authors presented new analyses for seven kaersutite-bearing basaltic rocks, including peridotite, clinopyroxenite, gabbro and hornblendite inclusions.Abstract:
Kaersutite-bearing peridotite, clinopyroxenite, gabbro and hornblendite inclusions up to 5 cm in size and megacrysts of kaersutite, andesine and titanomagnetite occur in alkali basalt scoria at Takenotsuji, Iki Island, Japan. New analyses are presented for seven kaersutite-bearing basaltic rocks, three inclusions, three clinopyroxenes and six kaersutites.read more
Citations
More filters
Journal ArticleDOI
Petrogenetic implications of Ti, Zr, Y, and Nb variations in volcanic rocks
TL;DR: In this paper, a table of mineral-liquid distribution coefficients for Ti, Zr, Y, and Nb for basic, intermediate and acid melt compositions were used to interpret variations of these elements, first in basalts and second during fractional crystallization from basic to acid magmas.
Journal ArticleDOI
Petrologic model of the crust and upper mantle of the Japanese Island arcs
TL;DR: In this paper, a petrologic model of the crust and upper mantle of the Holocene calc-alkali andesite of Ichinomegata(1) crater in Oga peninsula and those in the Plio-Pleistocene alkali-olivine basalts of Oki-Dōgo island in the Japan Sea was constructed.
Journal ArticleDOI
Origin of some magmas in oceanic and circum-oceanic regions
TL;DR: Partial melting experiments on spinel-lherzolite, a rock which probably occurs in relatively shallow parts of the oceanic upper mantle, demonstrate that alkali basaltic melt is formed at depths of at least 20 kbar whereas tholeiitic melts are formed at lower pressures as discussed by the authors.
Journal ArticleDOI
Petrology of mafic inclusions from Itinome-gata, Japan
Ken Ichiro Aoki,Ken Ichiro Aoki +1 more
TL;DR: In this paper, various types of mafic inclusions up to 30 cm in size occur in lapilli tuff of alkali basalt at Itinome-gata crater, northeastern Japan.
Journal ArticleDOI
Stability and composition relations of calcic amphiboles in ultramafic rocks
TL;DR: In this article, the stability of tremolite plus forsterite in the system H2O-CaO-MgO-SiO2 from 5 to 20 kbar was investigated and a univariant curve was fitted to the experimental brackets using volume, water fugacity and heat capacity data.
References
More filters
Journal ArticleDOI
The genesis of basaltic magmas
David H. Green,A.E. Ringwood +1 more
TL;DR: In this paper, the results of a detailed experimental investigation of fractionation of natural basaltic compositions under conditions of high pressure and high temperature were reported, where a single stage, pistoncylinder apparatus has been used in the pressure range up to 27 kb and at temperatures up to 1500° C to study the melting behaviour of several basaltics compositions.
Journal ArticleDOI
Genesis of the calc-alkaline igneous rock suite
TL;DR: In this article, a high pressure experimental study of the partial melting fields of synthetic high-alumina olivine tholeiite and quartz eclogite under dry and wet conditions has been conducted in order to investigate possible origins of the calc-alkaline series from the upper mantle.
Journal ArticleDOI
Anorthite—Forsterite and Anorthite—Enstatite Reactions and their bearing on the Basalt—Eclogite Transformation
I. Kushiro,H. S. Yoder +1 more
Journal ArticleDOI
Ultramafic inclusions in basaltic rocks from Hawaii
TL;DR: In this article, the inclusions were separated into three categories, which correlate with three groups basaltic hosts: lherzolite inclusions are relatively poor in Fe, and the component minerals have limited ranges of composition.
Related Papers (5)
Some clinopyroxenes from ultramafic inclusions in Dreiser Weiher, Eifel
Ken ichiro Aoki,Ikuo Kushiro +1 more
Origin of Basalt Magmas: An Experimental Study of Natural and Synthetic Rock Systems
H. S. Yoder,C. E. Tilley +1 more