古地磁

gǔdìcí
noun

Meanings

  1. 1 paleomagnetism
  2. 2 the geomagnetic field as preserved in ancient rocks

Examples

Gǔdìcí shùjù kěyǐ yòng lái chóngjiàn dàlù piāoyí.
Paleomagnetic data can be used to reconstruct continental drift.
Tā de yánjiū fāngxiàng shì gǔdìcí.
His research focus is paleomagnetism.

Tips

usage
Geophysics term — short for 古地磁 (gǔdìcíxué, paleomagnetism as a discipline). Iron-bearing minerals lock in Earth's magnetic field direction at the moment of crystallization, letting geologists read past pole positions and date sea-floor stripes.

Stroke Order