lichenometry

n. [地]地衣测量年代法( 指用测量地衣直径来确定其生长年代或其生长地区年代的方法)

释义与例句

n.
  1. 1.

    A geomorphic method of geochronologic dating that uses lichen growth to determine the age of exposed rock.

    不可数 生物 地质

    In lichenometry, a lichen is presumed to grow radially at a specific, constant rate: this rate is used to estimate the age of the largest lichen on a rock surface, and thus the length of time the rock has been exposed.

词源

From lichen + -metry.

来源：wiktionary