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Please use this identifier to cite or link to this item: http://hdl.handle.net/11150/7944

Title: 西南日本外帯の堆積岩中のホウ素含有量 : 研究ノート
Other Titles: Boron content of the sedimentary rocks in the Outer Zone of southwest Japan : Note
Authors: 新正, 裕尚
SHINJOE, Hironao
Abstract: Boron contents analyzed by prompt gamma-ray analysis for 19 sedimentary rocks from Late Cretaceous Shimanto belt and Miocene Kumano Formation in the Outer Zone of southwest Japan are reported. Samples were obtained from Uwajima region close to the Uwajima granodiorite body in southwest Shikoku and Kumano region close to the Kumano Acidic Rocks in southeastern Kii peninsula. Boron contents of sandstone and shale range 13-113 ppm and 19-302 ppm, respectively. Most of samples show negative correlation between SiO2 and boron contents reflecting the mode of clay minerals in the samples. Three shale samples from Uwajima region show rather high boron content (>240 ppm). Boron content of these samples might be affected by contact metamorphism of Uwajima granodiorite body which includes tourmaline rich lithologies.
journaltitle: 人文自然科学論集 = The Journal of Humanities and Natural Sciences
Issue Date: 25-Mar-2015
Publisher: 東京経済大学人文自然科学研究会
issue: 136
Start Page: 117
End Page: 126
URI: http://hdl.handle.net/11150/7944
ISSN: 0495-8012
Appears in Collections:136号

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