玄武安山岩

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墨西哥Parícutin火山的玄武安山岩
喀斯喀特山脈的玄武安山岩

玄武安山岩(英語:basaltic andesite)是一種含有約55%二氧化矽的火山岩。它與玄武岩安山岩的不同之處在於二氧化矽含量的百分比不同。玄武安山岩中的礦物包括橄欖石輝石斜長石[1] 。玄武岩安山岩可在世界各地的火山中找到,包括中美洲和南美州的安第斯山脈[2][3]

參考資料[编辑]

  1. ^ Glossary for the Geology of Mount Shasta. (原始内容存档于2010-03-14). 
  2. ^ Jordan, B.R.; Sigurdsson, H.; Carey, S.; Lundin, S.; Rogers, R.D.; Singer, B.; Barquero-Molina, M. Petrogenesis of Central American Tertiary ignimbrites and associated Caribbean Sea tephra. Mann, Paul (编). Geologic and tectonic development of the Caribbean plate boundary in northern Central America. Geological Society of America. 2007: 161. 
  3. ^ Kay, Suzanne Mahlburg; Copeland, Peter. Early to middle Miocene backarc magmas of the Neuquén Basin: Geochemical consequences of slab shallowing and the westward drift of South America. Kay, Suzanne Mahlburg; Ramos, Victor A. (编). Evolution of an Andean margin: a tectonic and magmatic view from the Andes to the Neuquén Basin (35 degrees-39 degrees S lat). Geological Society of America. 2006: 209.