论文部分内容阅读
连山关地区在大地构造位置上,处于华北地台东北部营口—宽甸台隆与太子河台凹的过渡部位。前寒武纪地层在本区形成一短轴复背斜构造,轴向290°。背斜轴部由混合花岗杂岩体及呈残留体分布的鞍山群组成,四周为下元古辽河群所包围。背斜北翼有大面积上元古界及下古生界分布(图1)。近年来,在下元古界浪子山组底部与太古界基底混合杂岩体的不整合面附近发现了铀矿床。铀矿床主要赋存在浪子山组沉积变质岩及白色混合岩中。其形成
Lianshanguan area in the tectonic position, is located in the northeastern North China Yingkou - Kuandian Tai Long Taizihe Taitou transitional parts. Precambrian strata form a short-axis anticlinal structure in this area with an axial length of 290 °. The anticline axis consists of mixed granitic complex and Anshan cluster with residual body, surrounded by Xiayuan ancient Liaohe group. The anticlinal north wing has a large area of Proterozoic and Lower Paleozoic distribution (Figure 1). In recent years, uranium deposits have been discovered near the unconformity between the bottom of the Proterozoic pristine Proterozoic and the Archean basement mixed complex. The uranium deposit mainly exists in the sedimentary metamorphic rocks and white mixed rocks of the prodigious group. It forms