第5卷‧第2期,
198104
, pp. 75-84
臺灣澎湖?島玄武岩中之高壓偉晶
- 作者：
陳中華；楊宏儀；蔡金?
- 作者服務機構：
國立成功大學地球抖學系
- 中文摘要：
在澎湖?島玄武岩質岩石中有斜長石、歪長石、正輝石、斜輝石、鈦鐵礦和磁鐵礦等偉晶被發現。從外型、物理特性 、化學和偉晶與母岩玄武岩間的關係等證據，有力的支持這些偉晶是從玄武岩質岩漿在高壓下所結晶出來，並且與母岩玄 武岩是同源的推測。
- 英文摘要：
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- 中文關鍵字：
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- 英文關鍵字：
Megacrysts of plagioclase, anorthoclase, orthopyroxene, clinopyroxene, ilmenite, and magnetite have been found in the basaltic rocks of the Penghu islands. Evidence from morphology, physical characteristics, chemistry, and their relation to the host basalts strongly suggest that these megacrysts crystallized from the basaltic magmas at high pressures and therefore are cognate with their host basalts.
