middle cambrian series
常見例句
- The stratiform skarn, which is associated with schist and marble of the Tianpeng Group in the Middle Cambrian metamorphic series, is the main host rock of the Dulong tin-zinc polymetallic deposit.
都龍錫鋅多金屬鑛牀的主要含鑛巖石層狀夕卡巖，順層産出於中寒武統(tǒng)田蓬組片巖、 大理巖中。 返回 middle cambrian series