Ferromanganese crusts compress informations of palaeoenvironment and tectonization since cretaceous with high density and are significant to study palaeoceanic, palaeoenvironmental and global changes.

• 富钴结壳记载了晚白垩纪以来的古环境和构造活动信息,具有高密度压缩信息的优点,利用富钴结壳进行古海洋、古环境及全球变化的研究具有重要意义。