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RISS 인기검색어
- 검색키워드
- 저자 : ( Naruhiko Kashima ) (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
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A Note on Biogenic Effects of Coralloid Speleothems in Round Mountain Lava Cave, Oregon, U.S.A.
Kashima, Naruhiko,Ogawa, Takanori The Speleological Society 1999 Journal of the speleological society of korea Vol.9 No.2
Corralloid speleothems from Round Mountain lave cave are are studied by scanning microscope and electron microprobe analyses. Scanning microscopy observation indicates that the diatom Melosira seems to contribute significantly to siliceous coralloid speleothems Electron microprobe confirms the presence of diatom and fragmental minerals(plagioclase and orthopyroxene) in coralloid speleothems. Chemical analysis of 3 diatom cells gives SiO2(74.8%), Al2O3(0.12%), FeO(0.11%), CaO(0.47%) and MgO(0.81%).
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Environmental Control of Chemical Composition of the Secondary Hydroxyapatite from Japan
Kashima, Naruhiko,Tazaki, Kazue,Fyfe, W.S. The Speleological Society 1998 Journal of the speleological society of korea Vol.8 No.2
The mineral hydroxyapatite is very common species in secondary phosphates originating from guanos(HILL et at., 1997). Several mineralogical analyses of spelean hydroxyapatite exist(e.g., KASHIMA, 1968, 1979 ; MAKI et at., 1977 ; SUH et at., 1978 ; WANG, 1982 a, b), whereas detailedeochemical composition of secondary hydroxy apatites has not been reported in Japan.(omitted)
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한국, 일본, 러시아 용암동굴 형성층의 형광X선 분석과 편광현미경적 연구
( Isao Sawa ),( Katsuhiko Furuyama ),( Tsuyoshi Ohashi ),( Chang Sik Kim ),( Naruhiko Kashima ) 한국동굴학회 2006 동굴 Vol.74 No.-
(1) Kaeusetgul Cave in Kimnyong-Ri, Jeju-Do, Korea. Kaeuset-gul Cave (KC) is situated in NNE area of the Manjang-gul cave (125m a.s.l.). Kaeuset-gul Cave lies at E in longitude and N in latitude. The coast belong Kimnyeong-Ri, Kujwa-eup, Jeju-Do. Altitude of the cave-entrance is 10m and length of the cave is 90m. Lava hand-specimens of KC are studied by X-ray fluorescence analysis (XRF). Average major chemical components of specimens from KC is as follows (wt.%); SiO2+47.03, TiO2=3.16,AlO3=18.41, FeO8=13.53, Mn0=0.14, MgO=5.05, CaO=8.66, Na2O=2.81,K2O=0.67, P2O5=0.55 in KC. Polarizing microscopic studyindicates that these specimens are described of alkali-basalt. (2) Tachibori Fuketsu (Cave) in Shizuoka Prefecture, Fuji Volcano, Japan Tachibori Fuketsu lies attoward the south in skirt of the Fuji volcano, 138˚42`` 04" east longitude and 35˚18``00" north latitude. The location of cave entrance is 2745, Awakura, Fujinomiya-shi, Shizuoka Prefecture. The above sea level and length of Tachibori Fuketsu are 1,170m and 82m. Average major chemical components of specimens from cave areas follows (Total 100 wt.%) ; (SiO2 =50.52, TiO2 =1.69, Al2O3 =15.47, FeO*=13.13, MnO=0.20, MgO=5.97, CaO=9.17, Na2O=2.52, K2O =0.94 and P2O5=0.40).Polarizing microscopic study indicates that these specimens may belong to tholeiite-basalt series. According to polarizing microscopic study, Au (Augite), P1 (Plagioclase), and O1 (Olivine) are contained as phenocryst minerals. (3) Gorely Cave in Kamchatka Peninsula, Russia Gorely caldera is located at the southeastern part of Kamchatka Peninsula, about 75km southwest of Petropavlovsk-Kamchatskiy. Gorely lava caves are situated in NHE area of Mt. Gorely volcano (1829m a.s.1.). One of lava cave (Go-9612=K-1) lies at 158˚00``22" east longitude and 52˚36`` 18" north latitude. The elevation of cave entrance is about 990m a.s.1. and the main cave extends in the NNW direction for about 50m by 15m wide and 5m in depth. The cave of K-3is near the K-1 cave. "@Lava hand-specimens K-1 and K-3 caves are studie d by X-ray fluorescence analysis and polarizing microscopic observation. Average major chemical components of specimens from these caves are as follows (wt.%) ;( SiO2=55.12, TiO2 =1.25, Al2O3 =16.07, T-FeO* =9.41, MnO=0.16, MgO=5.01, CaO=7.21, Na2O=3.39, K2O=1.92, P2O5=0.45) and these values indicate that the Gorely basaltic andesite belong to high alumina basalt. Polarizing microscopic study indicates that these specimens are described of Augite andesite.
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한국, 일본, 러시아 용암동굴 형성층의 형광X선 분석과 편광현미경적 연구
Sawa, Isao,Furuyama, Katsuhiko,Ohashi, Tsuyoshi,Kim, Chang-Sik,Kashima, Naruhiko 한국동굴학회 2006 동굴 Vol.74 No.-
(1) Kaeusetgul Cave in Kimnyong-Ri, Jeju-Do, Korea. Kaeuset-gul Cave (KC) is situated in NNE area of the Manjang-gul cave (125m a.s.l.). Kaeuset-gul Cave lies at $126^{\circ}45'22"$ E in longitude and $33^{\circ}33'09"$ N in latitude. The coast belong Kimnyeong-Ri, Kujwa-eup, Jeju-Do. Altitude of the cave-entrance is 10m and length of the cave is 90m. Lava hand-specimens of KC are studied by X-ray fluorescence analysis (XRF). Average major chemical components of specimens from KC is as follows (wt.%); $SiO_2=47.03$, $TiO_2=3.16$, $Al_2O_3=18.41$, FeO*=13.53, MnO=0.14, MgO=5.05, CaO=8.66, $Na_2O=2.81$, $K_2O=0.67$, $P_2O_5=0.55$ in KC. Polarizing microscopic studyindicates that these specimens are described of alkali-basalt. (2) Tachibori Fuketsu (Cave) in Shizuoka Prefecture, Fuji Volcano, Japan Tachibori Fuketsu lies attoward the south in skirt of the Fuji volcano, $138^{\circ}42'04"$ east longitude and $35^{\circ}18'00"$ north latitude. The location of cave entrance is 2745, Awakura, Fujinomiya-shi, Shizuoka Prefecture. The above sea level and length of Tachibori Fuketsu are 1,170m and 82m. Average major chemical components of specimens from cave areas follows (Total 100 wt.%) ; ($SiO_2$=50.52, $TiO_2$=1.69, $Al_2O_3$=15.47, FeO*=13.13, MnO=0.20, MgO=5.97, CaO=9.17, $Na_2O$=2.52, $K_2O$=0.94 and $P_2O_5=0.40).$ Polarizing microscopic study indicates that these specimens may belong to tholeiite-basalt series. According to polarizing microscopic study, Au (Augite), P1 (Plagioclase), and O1 (Olivine) are contained as phenocryst minerals. (3) Gorely Cave in Kamchatka Peninsula, Russia Gorely caldera is located at the southeastern part of Kamchatka Peninsula, about 75km southwest of Petropavlovsk-Kamchatskiy.. Gorely lava caves are situated in NHE area of Mt. Gorely volcano (1829m a.s.1.). One of lava cave (Go-9612=K-1) lies at $158^{\circ}00'22"$ east longitude and $52^{\circ}36'18"$ north latitude. The elevation of cave entrance is about 990m a.s.1. and the main cave extends in the NNW direction for about 50m by 15m wide and 5m in depth. The cave of K-3is near the K-1 cave. "@Lava hand-specimens K-1 and K-3 caves are studied by X-ray fluorescence analysis and polarizing microscopic observation. Average major chemical components of specimens from these caves are as follows (wt.%) ;($SiO_2$=55.12, $TiO_2$=1.25, $Al_2O_3$=16.07, T-FeO* =9.41, MnO=0.16, MgO=5.01, CaO=7.21, $Na_2O$=3.39, $K_2O$=1.92, $P_2O_5$=0.45) and these values indicate that the Gorely basaltic andesite belong to high alumina basalt. Polarizing microscopic study indicates that these specimens are described of Augite andesite.
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