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1982年夏我们在松树沟地区教学实习期间,分别在工作区东、西相距10公里的两处,发耐现了赋存于富水杂岩北侧(黑云母斜长片麻岩底部)的一套单成分的陆源砾岩层。砾石成分以化学风化的稳定岩石,暗灰色、灰白色的硅质岩及其碎屑为主,次则为较不耐磨损和化学风化的斜长角闪岩的砾石组成。硅质岩的磨园度较好,呈园状、次园状居多,斜长角闪岩砾石为压扁了的次园状。底部粒度较大,砾石的磨石的磨园和分选程度较差。向上磨园度和分选程
In the summer of 1982, during the teaching internship in the Songshugou area, we found that in the two places 10 km apart from the east and west of the work area, respectively, they were existent in the north of the water-rich complex (bottom of biotite plagiogneiss) A single component terrigenous conglomerate. The gravel composition is dominated by chemically weathered stable rock, dark gray, gray-white chert and its debris, followed by the less-wearable and chemically weathered amphibolite. The degree of milky degree of the silicalite is good, was park-like, sub-park-like majority, plagioclase amphibole gravel crushed sub-garden-like. The bottom of the larger particle size, gravel grinding mill and the poor degree of sorting. Upward grinding degree and sorting process