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학위논문
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정형은 (조선대학교, 조선대학교 대학원)

지도교수
안건상
발행연도
2018
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이 논문의 연구 히스토리 (2)

초록· 키워드

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전라남도 동부 지역에 해당하는 구례군 문척면 금정리 일대, 순천시 해룡면 일대, 여수시 구봉산 및 돌산읍 금오산 향일암 일대에는 주상절리가 발달, 관찰된다. 구례군 문척면 금정리 일대에는 폭 평균 30cm, 기둥면 사이의 각이 평균 111°~120°를 보이는 6각형 형태의 주상절리가 발달한다. 순천시 해룡면 일대에는 폭 평균 30cm, 기둥면 사이의 각이 평균 101°~130°를 보이는 6각형 형태의 주상절리가 발달한다. 여수시 구봉산 일대는 폭 평균 30~40cm, 기둥면 사이의 각이 평균 111°~130°를 보이는 6각형 형태의 주상절리가 발달한다. 돌산읍 금오산 향일암 일대는 폭 평균 31~50cm, 기둥면 사이의 각이 평균 101°~130°를 보이는 5각형 형태의 주상절리가 발달한다.
주상절리를 구성하는 암석들을 주성분원소 분석을 통하여 TAS도에 도시한 결과, SiO2의 함량이 55.02wt%~60.9wt%로 연구 지역 모두 안산암 영역에 해당하며, 대부분 Sub-Alkali계열에 도시됨을 알 수 있다.
구례 지역은 퇴적층 사이로 안산암이 관입되어 형성된 것으로 정상을 향해 수렴하는 경향을 보인다. 순천 지역은 큰 규모의 마그마 관입이 일어나 일정한 방향성을 보이며 냉각이 된 것으로 유추된다. 여수 향일암 지역은 다른 연구 지역에 비해 SiO2의 함량이 낮지만 폭이 큰 것으로 보아 상대적으로 냉각속도가 느림을 추정할 수 있다. 이 때 냉각이 진행되면서 내부 수축이 계속 일어나 작은 규모로 절리가 형성되었다고 생각된다.
세계적으로 주상절리 연구가 활발하게 이루어지는 지역은 대부분 염기성 화산암이다. 우리나라에서도 안산암 주상절리에 대한 연구가 거의 전무한 상태이다.
본 연구를 통해 중성암에 발달한 주상절리에 대해 조사, 정리하여 자료 축적에 도움을 주고 학술답사 및 관광산업을 촉진시키는 효과를 주고자 한다.

목차

목 차
Ⅰ. 서론·············································································1
1. 연구 배경····································································1
2. 주상절리 형성 이론·······················································3
2. 연구 동향····································································7
3. 연구방법 및 연구방향···················································10
Ⅱ. 연구지역의 지질··························································12
1. 전라남도 구례군···························································15
2. 전라남도 순천시···························································28
3. 전라남도 여수시···························································40
Ⅲ. 주상절리 형태분석······················································47
1. 구례지역 주상절리························································49
2. 순천지역 주상절리························································53
3. 여수지역 주상절리························································58
1) 구봉산 지역·····························································58
2) 향일암 지역·····························································63
Ⅳ. 암석화학······································································67
1. 주성분원소··································································67
1) 암석의 분류·····························································67
2) 화학조성의 변화························································71
Ⅴ. 결론 및 토의·······························································74
【참고문헌】·····································································76

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