燕山早期侵入岩以二长花岗岩、黑云钾长花岗岩为主，其次为花岗闪长岩。
Early Yanshanian intrusions are mainly adamellite, biotite K-feldspar granite with small amount of granodiorite.
同时根据黑云母的成分等得出了花岗岩的形成条件及其与成矿关系。
On the basis of composition of biotites, the forming condition of granite and its connection with mineralization are carried out.
成矿物质来源于龙箱盖黑云母花岗岩。
The origin of minerogenetic matters come from micaceous granite of Longxianggai.
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