diachronous
adj. 穿时的;跨时的;跨代的
n. [地质] 年序堆积层
例句
Luoquan Formation is a diachronous unit from Sinian to Lower Cambrian.
罗圈组为一穿时地层单位,时代为震旦纪—早寒武世。
The diachronous northeastwards was higher, reflecting the transgression to the northeast was slower.
向北东向穿时较高,反映向北东向的海侵较慢。
As the top boundary of the Zimenqiao Formation is diachronous, the intermediate boundary fluctuates near its top boundary.
由于梓门桥组的顶界穿时,所以中间界线在其顶界附近浮动。