湖北宜昌第四纪沉积物中铁质重矿物特征对三峡贯通的指示*
由文智1, 向芳2,3, 杨坤美1, 姜月华4, 喻显涛2, 李磊1

Implication of iron rich heavy minerals in Quaternary sediments in Yichang area of Hubei Province for cutting through time of Three Gorges
You Wen-Zhi1, Xiang Fang2,3, Yang Kun-Mei1, Jiang Yue-Hua4, Yu Xian-Tao2, Li Lei1
宜昌地区沉积物015、021、017、024、00B、025样品铁质重矿物的特征背散射图像(Ⅱ) a—024样品中含钛赤铁矿包裹锆石;b—024样品中钛铁矿与赤铁矿出溶;c—00B样品中钛铁矿与含铁锐钛矿出溶;d—025样品中钛铁矿与钒钛磁铁矿出溶;e—025样品中均一结构赤铁矿;f—025样品中赤铁矿包裹磷灰石;g—YC02样品中均一结构含钛赤铁矿;h—YC02 样品中含钛赤铁矿包裹磷灰石;i—YC02样品中钛铁矿与含铁锐钛矿出溶