Magnetic extraction, CBD method, XRD, SEM and microscopic results showed that in the loess magnetic minerals are mainly detrital magnetite, and minor pedogenic hametite and maghemite.

• 摘要对洛川黄土、古土壤和红粘土中磁性矿物组成、成因和相关系进行了研究。结果表明：黄土磁性矿物以风尘磁铁矿为主，少量的成土赤铁矿和成土磁赤铁矿；