울산철광산 지역의 사문암의 사문석화 작용에 관한 연구

• 영문명: A study on serpentinization of serpentinites from the Ulsan iron mine
• 발행기관: 대한자원환경지질학회
• 저자명: 김규한(Kyu Han Kim) 박재경(Jae Kyung Park) 양종만(Jong Mann Yang) Hiroshi Satake(佐竹 洋)
• 간행물 정보: 『자원환경지질』26권 3호, 267~278쪽, 전체 12쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1993.06.30

영문 초록

Serpentinite rocks which are composed mainly of olivine, serpentine and clinopyroxene, cropped out in the anorogenic Kyongsang sedimentary basin of South Korea. The serpentinites contain high content of MgO (36.87~41.99%) and 47~67 ppm Co, 1185~2042 ppm Ni and 979~3582 ppm Cr, which are quite similar to those of ultrabasic rocks such as peridotite and dunite. Isotopic compositions of serpentinites range from -95.5 to -105.7‰ in δD and +1.7 to 7.1‰ in δ¹⁸O corresponding to the continental antigorite type. A wide variation of oxygen isotopic values and H₂O⁺ content of serpentinites reflect the different water/rock ratios during serpentinization processes. Formation temperature of serpentine minerals are estimated to be unusually high temperature of 488~646℃ by serpentine-magnetite isotopic fractionation, which belong to continental antigorite type. Calculated δ¹⁸O value of serpentinized fluid during serpentinization is suggested that the hydrothermal fluid responsible for serpentinization be originated from the magmatic fluid with a minor influx of paleo-meteoric water in this area.

목차

ABSTRACT

서론

지질개요

시료채취 및 분석방법

분석결과

결론

참고문헌