Abstract:The three main accessory minerals, zircon, sphene and apatite which have stable chemical properties are widely distributect in the rocks in the Eastern Shandong Region. The accessory minerals can be used as an indicator of various kinds of geologic processes.Zircon occurred in this region was mainly concentrated during the magmatic stage, and then the pegmatitic stage and pneumatogenic stage. The Zr/Hf ratios are reduced, in turn, from the central facies through the transtional facies and then to the border...