微体化石

微體化石

wēitǐhuàshí

noun

Measure Word

一块微体化石 kuài

Meanings

1 microfossil
2 small fossil visible only under a microscope

Characters

Examples

地质学家通过微体化石来判断地层年代。

Dìzhìxuéjiā tōngguò wēitǐhuàshí lái pànduàn dìcéng niándài.

Geologists use microfossils to date rock strata.

石油勘探离不开微体化石研究。

Shíyóu kāntàn líbùkāi wēitǐhuàshí yánjiū.

Oil exploration relies heavily on microfossil research.

Tips

usage

Literally "micro-body fossil." Common microfossil groups include 有孔虫 (foraminifera), 放射虫 (radiolarians), and 牙形石 (conodonts) — all used as index fossils for biostratigraphy.

Stroke Order

微 wēi

体 tǐ

化 huà

石 shí