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关于长江上游地区层状基性-超基性侵入体中的铁-钛氧化物矿物,曾在前文予以报导和讨论。本文则主要介绍这些侵入体的岩石资料,并讨论某些有关的岩石学问题。前文已报导的这些侵入体的地质简图、矿物含量变化、岩石结构特点等实际资料,本文利用时将不再引述。为了缩减篇幅,下面将以叙述P岩体的实际资料为主;作为比较,也提及L岩体及B岩体的有关资料,而对有关的岩石、矿物分析资料,仅表示于相应的成分图中,并未一一列出。
The iron-titanium oxide minerals in stratified basic-ultrabasic intrusions in the upper reaches of the Yangtze have been reported and discussed above. This article will focus on rock information on these intrusions and discuss some of the related petrology issues. These intrusions have been reported in the previous geological map, mineral content changes, the characteristics of rock structure and other actual data, the use of this article will no longer quote. In order to reduce the length, the following will mainly describe the actual data of P rock mass. For comparison, the related data of L rock mass and B rock mass are also referred to, and the relevant rock and mineral analysis data are only shown in the corresponding components The figure is not listed one by one.