paleomagnetism
美 [ˌpeɪlɪoʊ'mægnɪˌtɪzəm]
英 [ˌpeɪlɪəʊ'mægnɪtɪzəm]
- 网络古地磁；古地磁学；古磁学
n. | 1. the polarity and intensity of residual magnetism in ancient rock 2. the study of changes in the intensity and direction of the Earth's magnetic field throughout geologic time. |