At the same time, the rock magnetic results demonstrate that magnetite, hematite and thermal-unstable maghemite are the most important magnetic minerals in the Dachai sediments.

• 而岩石磁学研究结果显示，磁铁矿、赤铁矿和热不稳定性磁赤铁矿是大柴剖面沉积物中主要的磁性矿物；