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  • Basanite - Wikipedia
    Basanite is an aphanitic (fine-grained) igneous rock that is low in silica and enriched in alkali metals Of its total content of quartz, feldspar, and feldspathoid (QAPF), between 10% and 60% by volume is feldspathoid and over 90% of the feldspar is plagioclase
  • 碧玄岩_百度百科
    碧玄岩（Basanite），是一种SiO₂明显不饱和及碱含量较高的富含似长石的碱性玄武岩，属于基性-碱性岩的喷出岩。 按实际矿物成分在QAPF图解14区中确定，按化学成分分类位于TAS图解U1区内。 岩石色深灰至黑，具全晶质斑状结构。
  • Basanite | Igneous, Volcanic, Magma | Britannica
    Basanite, extrusive igneous rock that contains calcium-rich plagioclase feldspar (usually labradorite or bytownite), feldspathoid (usually nepheline or leucite), olivine, and pyroxene (titanaugite)
  • Basanite: A Fine-grained Mafic Volcanic Rock - Geology Base
    Basanite is a silica-poor, fine-grained, dark-colored volcanic rock Here is its appearance, composition, formation, and where it is found
  • Basanite: Mineral information, data and localities.
    Basalt is similar but contains little or no foids The rock usually comprises mostly fine-grained calcic plagioclase, clinopyroxene (mostly augite), foids and olivine (typically as phenocrysts); it may have a glassy groundmass Not to be confused with bassanite, the mineral, or basanite (chert), the black chert
  • Basanite - an overview | ScienceDirect Topics
    The main rock types are silica-undersaturated lava, alkalic basalt, basanite, and melanephenelinite, with lesser amounts of nephelinite, trachyte, and phonolite
  • Basanite - grokipedia. com
    Definition Basanite is an extrusive igneous rock of volcanic origin, characterized by a mafic composition with low silica content typically ranging from 42 to 45 wt% SiO₂, and an aphanitic to porphyritic texture featuring a fine-grained groundmass that may contain phenocrysts of pyroxene or olivine
  • Basanite - Oxford Reference
    Varieties of basanites are defined by the type of feldspathoid mineral present to give nepheline-basanite, analcite-basanite, and leucite-basanite These rocks are found in close association with alkali basalts
  • Basanite - Clark Science Center
    Basanite: “A term originally used for a porphyritic basalt containing pyroxene phenocrysts, but later used as a group name for rocks composed of clinopyroxene, plagioclase, essential foids and olivine ”
  • 碧玄岩 - 维基百科，自由的百科全书
    碧玄岩 （英语： Basanite）是一种 火山 喷出岩，具有隐晶质到斑状纹理。 它主要由长石、辉石、橄榄石和斜长石组成，由含二氧化硅低且含碱金属氧化物高的岩浆，喷出地球表面迅速凝固形成。





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