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众所周知,花岗伟晶岩以挥发份(其中包括卤素)的含量高为特点。目前,关于卤素与金属呈络合物状态参与伟晶岩形成作用的观点广为流行。但在所有的这种情况下,主要都是对氟的化合物进行了研究,而对于碘则没有这方面的资料。本文阐述了碘在伟晶岩及其围岩中分布规律的研究结果。 稀有金属伟晶岩省为一北西-南东向狭长的地堑-向斜,是由与太古代基底呈地层不整合产出的早元古代变质沉积岩和火山岩所构成。这套岩层可以划分出几个不同成分的岩系。最早期的为含十字石-石榴石-黑云母片麻岩夹层的黑云母片麻岩和石榴石-黑云母
It is well-known that granitic pegmatites feature high levels of volatile matter, including halogens. At present, the view that halogen and metal are complexed to participate in pegmatite formation is widespread. However, in all such cases, studies have mainly been conducted on the compounds of fluorine, while on iodine, there is no such information. This paper describes the distribution of iodine in pegmatites and its surrounding rock. The rare metal pegmatite province is a north-south-east long and narrow graben-syncline composed of Early Proterozoic metamorphic sedimentary rocks and volcanic rocks that are unconformity with the Archean basement. This rock formation can be divided into several different rock composition. The earliest is the biotite gneiss with garnet-biotite-biotite gneiss and garnet-biotite