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广东尖山铁矿床内发育了一个完整的钙铝榴石—钙铁榴石系列矿物,它们与矿化有着密切的关系,因此,研究石榴石的标型特征对探讨矿床形成条件是很重要的,对找矿也是有意义的。一、石榴石的产出特征尖山矿床赋存在尖山花岗岩体与中—上石炭统壶天群和下二叠统栖霞组碳酸盐岩层的接触带中。从花岗岩体向碳酸盐岩层形成了如下蚀变分带:绿帘石化花岗岩带→透辉石钾长石石英岩带→石榴石
In the Jianshan Iron Ore Deposit, Guangdong Province, a complete series of goethite-duritite minerals are developed, which are closely related to mineralization. Therefore, studying the standard features of garnet is very important for discussing the formation conditions of the ore deposit It is also meaningful for prospecting. First, the output characteristics of garnet Jianshan deposit exists in Jianshan granite body and the Middle - Upper Carboniferous pot day group and the Lower Permian Qixia Formation carbonate zone contact zone. The following alteration belts have been formed from granitoids to carbonate rocks: Epoch-granite belt → diopside potassium-feldspar quartzite → garnet