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NTIS 바로가기암석학회지 = The journal of the petrological society of korea, v.26 no.2, 2017년, pp.113 - 125
황상구 (안동대학교 지구환경과학과) , 안웅산 (제주특별자치도 세계유산본부)
We investigates geochemical and tectonic characteristics for the Triassic Bojangsan trachyte in the southern margin of the Imjingang belt. The geochemical signatures of the thracyte are characterized by enrichments of REE and HFS, and show no Nb trough, suggesting that would not experience arc magma...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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알칼리 화성암은 일반적으로 어떤 배경에서 정치된다고 알려져 있는가? | 알칼리 화성암은 일반적으로 확장성 혹은 비압축성조구조적 배경에서 정치된다고 알려져 있다(Whalenet al., 1987; Eby, 1990, 1992). | |
뜨거운 약권 맨틀의 상승은 어떤 현상을 일으키는가? | , 2001). 뜨거운 약권 맨틀의 상승은 알칼리 화성암의 형성에 필요한 열과 공급물질이 제공될 뿐만 아니라 지각물질이 부분용융되는 원인이 되기도 한다. 그러므로 특히 대륙 지역에서 알칼리 화산암의 산출은 열곡작용을 초래하는 상승 맨틀의 존재를 가리킨다(예, Li et al. | |
확장성 혹은 비압축성조구조적 배경은 어떤 것을 포함하는가? | , 1987; Eby, 1990, 1992). 이러한 배경은 비조산성 열곡 및 판내 마그마작용 혹은 지각누적 사건을뒤따르는 후조산성 마그마작용을 포함한다. 이런 조구조적 배경에서, 확장성으로 지각이 얇아짐은 맨틀상승 혹은 고철질 마그마 유입과 같은 심부 지열활동과 시공간적으로 밀접하게 관련되어 있다(Turner etal. |
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