The SHRIMP age data and geochemical results of the Palaeoarchaean dioritic gneiss and fine-grained trondhjemite of the ancient Dongshan rock belt from the Anshan area are reported in this paper.
本文报道了该区东山古老岩石带古太古代闪长质片麻岩和细粒奥长花岗岩的SHRIMP测年结果和地球化学组成。
Statistical results show that medium and fine-grained sandstones are the most favorable rock types for uranium mineralization.
统计结果表明，中、细粒砂岩是铀矿化最有利的岩石类型。
A fine-grained metamorphic rock composed of quartz, feldspar, mica, and other minerals, formed by the action of intrusive rock upon sedimentary rock, especially shale.
一种纹理清晰的变质岩，由石英、长石、云母和其他矿物组成，因侵入岩对沉积岩，特别是页岩的作用而形成。
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