felsite

n. 致密长石 [化] 霏细岩; 致密长石

词形变化

felsites 复数 felsites

释义与例句

n.
  1. 1.

    A fine grained volcanic extrusive rock, generally light in color, composed of felsic minerals.

    化学 地质

    The buff-colored dacites of the Superstition Mountains are felsites.

  2. 2.

    Any light-colored volcanic rock whose true mineralogy is not yet determined.

    地质