Notes on brown hornblende and biotite from Shabō-zan, of the Dalton volcanoes, Taiwan, Japan
Published online by Cambridge University Press: 14 March 2018
Extract
The Dalton volcanoes include all the volcanic groups which rise up at the north-western end of Taiwan (Formosa). They are old extinct volcanoes underlain by highly disturbed Tertiary sediments. Among them Shichisei-zan is the highest and the most prominent, rising up to 1108.7 metres above sea-level. It is mostly made up of hornb]ende-andesite, hypersthene-hornblende-andesite, and agglomerates. On the western slope of this partly dissected volcano there is a very characteristic cone called Shabō-zan. Its elevation is 643 metres above sea-level, and it is mostly made up of hypersthenehornblende- andesite poured out through the thick accumulation of agglomerates. The andesite here has usually a grey colour, but often passes into a light reddish-brown variety, being sometimes associated with a noritic segregation mass. It is noteworthy that some of the andesites abundantly contain brown hornblende. This mineral also frequently appears, together with brown biotite, in the segregation mass.
- Type
- Research Article
- Information
- Mineralogical magazine and journal of the Mineralogical Society , Volume 22 , Issue 134 , September 1931 , pp. 561 - 568
- Copyright
- Copyright © The Mineralogical Society of Great Britain and Ireland 1931
References
page 561 note 1 T. Ichimura, On the segregation masses contained in the hypersthene-horn-blende-andesite from Shabō-zan Taiwan. [Japanese.] Trans. Nat. Hist. Soc. Formosa, 1929, vol. 19, pp. 406-409.
page 564 note 1 X. Galkin, Chemische Untersuchung einiger Hornblenden und Augite aus Basalten der Rhön. Neues Jahrb. Min., 1910, Beil-Bd. 29, pp. 689, 688, 694.
page 564 note 2 Y. Deguehi, Geological report on the Dalton volcanoes. [Japanese.] P. 28,
page 566 note 1 S. Kōzu, B. Yoshiki, and K. Kani, Sci. Rep. Tōhoku University, Ser. 3, 1927, vol. 3, p. 143 [Min. Abstr., vol. 3, p. 495].
page 566 note 2 S. Kōzu, An interesting example of the mode of occurrence of basaltic horn blende associated with anomitic biotite in the quartz-andesite which forms the volcano Sambé, Japan. Proc. 4th Pan-Pacific Science Congress, Java, 1929, vol. 2, B, p. 721 [Min. Abstr., vol. 4, p. 287].
page 567 note 1 Williams, H., Geology of the Marysville Buttes, California. Univ. Calif. Publ. Bull. Dept. Geol. Sci., 1929, vol. 18, no. 5, p. 194.Google Scholar
page 567 note 2 References given by V. E. Barnes, Changes in hornblende at about 800° C. Amer. Min., 1930, vol. 15, pp. 393-417 [Min. Abstr., vol. 4, p. 391].
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