Boninite as a possible calc-alkalic primary magma

@article{Kuroda1978BoniniteAA,
  title={Boninite as a possible calc-alkalic primary magma},
  author={Naoshi Kuroda and Keiichi Shiraki and Hayaomi Urano},
  journal={Bulletin Volcanologique},
  year={1978},
  volume={41},
  pages={563-575}
}
Boninite is an unusual, plagioclase-free magnesian andesite, occurring as vesicular pillow lavas and hyaloclastites, accompanied by andesites and dacites in Chichi-jima, Bonin Islands. The Bonin Islands belong to the Izu-Mariana arc and consist of dominant volcanic rocks and subordinate sedimentary rocks of late Oligocene-early Miocene age. The chemistry of boninite is characterized by high contents of MgO. Cr and Ni similar to primitive basalts, but apparently in ill accord with its relatively… 
Ferropigeonite quartz dacites from Chichi-jima, Bonin Islands: Latest differentiates from boninite-forming magma
Chichi-jima, Bonin Islands, consists of dominant Eocene submarine volcanic rocks, comprising boninites, andesites and dacites, and subordinate sedimentary rocks. The dacites occur frequently in
Petrology and geochemistry of boninite series volcanic rocks from the Mariana trench
Boninite series volcanic rocks have been recovered from three dredge hauls on the inner slope of the Mariana Trench. These hauls included olivine boninites, boninites, boninitic andesites and
Petrology and Geochemistry of Boninite-Series Volcanic Rocks, Chichi-Jima, Bonin Islands, Japan
An Eocene submarine boninite-series volcanic center is exposed on the island of Chichi-jima, Bonin Islands, Japan. Five rock types—boninite, bronzite andesite, dacite, quartz dacite, and
CHROME-SPINELS IN A BASANITIC LAVA FROM NANZAKI VOLCANO, IZU PENINSULA
Spinels (sensu lato) in the Nanzaki basanitoid show a continuous compositional variation from chromian spinel (sense stricto) enclosed in the magnesian olivine and augite phenocrysts to titaniferous
28. MINERAL CHEMISTRY OF FOREARC VOLCANIC ROCKS FROM THE IZU-BONIN ARC, HOLES 792E AND 793B1
The Izu-Bonin forearc basement volcanic rocks recovered from Holes 792E and 793B show the same phenocrysts assemblage (i.e., Plagioclase, two pyroxenes, and Fe-Ti oxides ±olivine), but they differ in
ORIGIN OF CRETACEOUS HIGH MAGNESIAN ANDESITES FROM SOUTHEAST KALIMANTAN
High magnesian andesites are found in the Cretaceous Haruyan volcanics in Southeast Kalimantan. The rocks have Mg# 67 – 69, but low concentrations of Ni (44 – 60 ppm), Cr (37 – 411 ppm) and, except
MINERAL CHEMISTRY OF FOREARC VOLCANIC ROCKS FROM THE IZU-BONIN ARC , HOLES 792 E AND 793 B 1
The Izu-Bonin forearc basement volcanic rocks recovered from Holes 792E and 793B show the same phenocrysts assemblage (i.e., Plagioclase, two pyroxenes, and Fe-Ti oxides ±olivine), but they differ in
Existence of andesitic primary magma: An example from southwest Japan
A high-magnesian andesite (SiO2 58.50%, MgO 9.47%) occurs at Teraga-Ike in southwest Japan. It belongs to the Setouchi volcanic rocks of middle Miocene age and carries olivine and bronzite as
Constraints on the petrogenesis of Evros ophiolite extrusives, NE Greece
Abstract The incomplete and dismembered Evros ophiolite is situated in Thrace, NE Greece, and belongs to the Circum-Rhodope Belt (CRB). Its age is considered to be Jurassic–Lower Cretaceous. The
Petrology and Geochemistry of Boninites from the North Termination of the Tonga Trench: Constraints on the Generation Conditions of Primary High-Ca Boninite Magmas
We report here a detailed mineralogical, geochemical, and experimental study of a high-Ca boninite suite from the northern termination of the Tonga trench. Most samples are strongly olivine
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 27 REFERENCES
The boninite revisited
Boninite occurring in Chichi-jima, Bonin Islands, is a rare rock, no exact equivalent known anywhere, and is a vesicular, feldspar-free glassy andesite according to SiO2 content (56-59%), consisting
Upper mantle source for some hawaiites, mugearites and benmoreites
Chemical analyses of over seventy lavas or dykes containing spinel lherzolite inclusions of high pressure mineralogy, show that most host magmas are of alkali olivine basalt or basanite composition
A comparison of chrome-spinels in ophiolites and mantle diapirs of Newfoundland
Abstract Ultramafic bodies of Newfoundland occur as two recognizable types, obducted ophiolites in the west and intrusive “mantle diapirs” in the east. The Bay of Islands bodies in the west form a
Phenocryst-bulk rock composition relations of abyssal tholeiites and their petrogenetic significance
Abstract In order to infer equilibrium phase relations of abyssal tholeiites, olivine, plagioclase, augite, and pigeonite tholeiites from the ocean floor are plotted in terms of the CIPW norm
Primary magmas and the origin of basalts
  • M. O'hara
  • Geology
    Scottish Journal of Geology
  • 1965
Synopsis Basaltic rocks have chemical compositions and behave under experimental conditions in a way which suggests that extrusive basalt magmas are, in the main, the residual liquids of well
Minor-Element Distribution in Olivine
Microprobe analyses of natural igneous olivines from many rocks confirm that Ni increases and Mn de-decreases with increasing Mg content. A strong crystal-chemical control is apparently not
Geochemistry of basaltic and gabbroic rocks from the West Mariana basin and the Mariana trench
Abstract This paper describes the chemistry of 33 basaltic rocks dredged from the West Mariana basin and from the Mariana trench during the R/V “Dmitry Mendeleev” 1976 cruise in the western Pacific.
Upper Jurassic tholeiitic basalts from DSDP leg 11
Basalts recovered from sites 100 and 105 of leg 11 of the Deep-Sea Drilling Project are mineralogically and chemically similar to basalts recovered from ridge and near-ridge sites. Textural evidence
Chromite spinels from ultramafic xenoliths
Abstract The spinels in ultramafic xenoliths from kimberlites and alkali olivine basalts show a wide range of compositional variation, far in excess of the ranges shown by their coexisting silicate
The chemistry and petrology of basalts from leg 37 of the Deep‐Sea Drilling Project
This paper presents combined major element, trace element, and petrographic data on 108 samples from sites 332, 334, and 335 of DSDP (Deep-Sea Drilling Project) leg 37. The 102 basalt samples have
...
1
2
3
...