태백지역 만항층 셰일에서 산출되는 백운모-파이로필라이트 혼합상에 대한 연구 (A Study on the Muscovite-Pyrophyllite Mixed Phase in the Shale from the Manhang Formation, Taebaek Area)

서지정보

· 발행기관 : 한국광물학회
· 수록지 정보 : 광물과 암석 / 24권 / 4호 / 313 ~ 320페이지
· 저자명 : 최승현, 문향란, 이영부, 이정후

초록

Mica-type phyllosilicate particles in the shales of the Manhang formation at the Taeback area in the Kangwon Province were studied using electron probe microanalysis (EPMA) and transmission electron microscopy (TEM). The average chemical formula of the mica-type phyllosilicate mineral analysed by EPMA is K_(1.35)(Fe_(0.18)Mg_(0.03)Al_(3.86))(Si_(6.55)Al_(1.45))O_(20)(OH)_4. Low K contents compared to the ideal chemistry of muscovite indicate the presence of illite in the mica-type phyllosilicate particle.
X-ray diffraction study showed that pyrophyllite commonly coexists with muscovite in the shales from the Manhang Formation. TEM observations showed both the interlayer and intralayer mixing of 9.3-Åpyrophyllite and 10-Å muscovite layers. The low K content of the mica-type phyllosilicates apparently come from the close mixing of pyrophyllite and muscovite.

영어초록

Mica-type phyllosilicate particles in the shales of the Manhang formation at the Taeback area in the Kangwon Province were studied using electron probe microanalysis (EPMA) and transmission electron microscopy (TEM). The average chemical formula of the mica-type phyllosilicate mineral analysed by EPMA is K_(1.35)(Fe_(0.18)Mg_(0.03)Al_(3.86))(Si_(6.55)Al_(1.45))O_(20)(OH)_4. Low K contents compared to the ideal chemistry of muscovite indicate the presence of illite in the mica-type phyllosilicate particle.
X-ray diffraction study showed that pyrophyllite commonly coexists with muscovite in the shales from the Manhang Formation. TEM observations showed both the interlayer and intralayer mixing of 9.3-Åpyrophyllite and 10-Å muscovite layers. The low K content of the mica-type phyllosilicates apparently come from the close mixing of pyrophyllite and muscovite.

참고자료

· 없음