Abstract
Alteration minerals focused on alunite and other acid alteration minerals were examined in the northern part of the Hatchobaru geothermal field. Alunite minerals are widely distributed with more than 300 meters thickness. Alunite minerals have a wide range of δ31S from 0.5 to 23.7 per mil, indicating several different origins: supergene and hypogene origins. APS (Aluminium phosphate-sulfate) minerals in the core of the alunite minerals and the newly found acid alteration minerals such as zunyite, topaz, and andalusite suggest that volcanic acid sulfate solutions were once present to have formed the thick acid alteration zone at the Hatchobaru geothermal field.
| Original language | English |
|---|---|
| Pages (from-to) | 287-297 |
| Number of pages | 11 |
| Journal | Journal of the Geothermal Research Society of Japan |
| Volume | 28 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2006 |
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Keywords
- alunite
- geothermal
- Hatchobaru
- hypogene origin
- Japan
- sulfur isotope
ASJC Scopus subject areas
- Geophysics
Cite this
Hypogene Alunite from Acid Alteration Zone in Hatchobaru Geothermal Field, Kyushu, Japan. / Kiyosaki, Junko; Tanaka, Kana; Taguchi, Sachihiro; Chiba, Hitoshi; Takeuchi, Koichi; Motomura, Yoshinobu.
In: Journal of the Geothermal Research Society of Japan, Vol. 28, No. 3, 2006, p. 287-297.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Hypogene Alunite from Acid Alteration Zone in Hatchobaru Geothermal Field, Kyushu, Japan
AU - Kiyosaki, Junko
AU - Tanaka, Kana
AU - Taguchi, Sachihiro
AU - Chiba, Hitoshi
AU - Takeuchi, Koichi
AU - Motomura, Yoshinobu
PY - 2006
Y1 - 2006
N2 - Alteration minerals focused on alunite and other acid alteration minerals were examined in the northern part of the Hatchobaru geothermal field. Alunite minerals are widely distributed with more than 300 meters thickness. Alunite minerals have a wide range of δ31S from 0.5 to 23.7 per mil, indicating several different origins: supergene and hypogene origins. APS (Aluminium phosphate-sulfate) minerals in the core of the alunite minerals and the newly found acid alteration minerals such as zunyite, topaz, and andalusite suggest that volcanic acid sulfate solutions were once present to have formed the thick acid alteration zone at the Hatchobaru geothermal field.
AB - Alteration minerals focused on alunite and other acid alteration minerals were examined in the northern part of the Hatchobaru geothermal field. Alunite minerals are widely distributed with more than 300 meters thickness. Alunite minerals have a wide range of δ31S from 0.5 to 23.7 per mil, indicating several different origins: supergene and hypogene origins. APS (Aluminium phosphate-sulfate) minerals in the core of the alunite minerals and the newly found acid alteration minerals such as zunyite, topaz, and andalusite suggest that volcanic acid sulfate solutions were once present to have formed the thick acid alteration zone at the Hatchobaru geothermal field.
KW - alunite
KW - geothermal
KW - Hatchobaru
KW - hypogene origin
KW - Japan
KW - sulfur isotope
UR - http://www.scopus.com/inward/record.url?scp=84987771281&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84987771281&partnerID=8YFLogxK
U2 - 10.11367/grsj1979.28.287
DO - 10.11367/grsj1979.28.287
M3 - Article
VL - 28
SP - 287
EP - 297
JO - Journal of the Geothermal Research Society of Japan
JF - Journal of the Geothermal Research Society of Japan
SN - 0388-6735
IS - 3
ER -