groundmass / ˈgraʊndˌmæs /

🎓大学词汇地面物质地盘地表水地表水层

groundmass 的定义

n. 名词 noun
  1. the crystalline, granular, or glassy base or matrix of a porphyritic or other igneous rock, in which the more prominent crystals are embedded.

更多groundmass例句

  1. The felted or hyalopilitic texture is the most common, and plagioclase is the principal groundmass constituent.
  2. In a basal flow in Moraine Park, the slaggy and compact phases show differences in phenocrysts as well as in groundmass.
  3. These lavas have groundmass textures that vary from almost holo-crystalline to glassy.
  4. Pyroxene, quartz and augite form the groundmass, as seen in section.