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本文所谈的堇青石分布于莱阳市以北,旌旗山及其以东一带的变质岩系中。其层位属荆山群禄格庄组下段(图1),按原805队的划分属胶东群民山组第二段。因为本区的堇青石多遭受了后期的变化,过去常被人们所忽视。但无论含堇青石的岩石在本区禄格庄组下段的矿物组合,还是堇青石对研究产出地层的变质条件和变质历史等方面都占有重要的地位,因而应当引起人们的关注和研究。
In this article, cordierite is distributed in the north of Laiyang City, in the area of Flags and in the metamorphic rocks to the east of it. The horizon is the lower part of the Jinggeng Qunlugezhuang group (Figure 1). According to the original 805 team, it belongs to the second segment of the People’s Shannxi Group in Jiaodong. Because the area of cordierite suffered more late changes, the past is often overlooked. However, no matter whether the cordierite-bearing rocks in the lower part of the Lugezhuang Formation in this area or the cordierite occupy an important position in the metamorphic conditions and metamorphic history of the strata to be produced, it should arouse people’s attention and research.