胶东西北部地区现代河流砂金的聚集规律及水动力学解释  

Accumulation of Modern Placer Gold in River and Its Hydrodynamics Explanation in the Northwest Area in Jiaodong

作　　者：周江羽[1] 刘常青[1] 

机构地区：[1]中国地质大学

出　　处：《沉积学报》1997年第1期123-134,共12页Acta Sedimentologica Sinica

摘　　要：研究区位于胶东半岛西北部，具有丰富的岩金和砂金资源，是我国目前重要的黄金产地。作者应用沉积学和水动学的理论和方法，重点研究了该地区现代河流的沉积学特征、砂金聚集规律及其形成的水动力条件，认为河流砂金的聚集是一个与机械成矿作用密切相关的动态过程，与特定的河流水动力条件有关。The Study area, one of the most important gold producing areas in China and abundant in gold and placer gold reservoirs, is located in the northwest area of the Jiao Dong peninsula. The authors have mainly researched sedimentary features,the theories and methods of sedimentology and hydrodynamics,placer gold accumulation and hydrodynamics conditions of modern rivers in the area,by means of pointed out that placer gold in river accumulation is a dynamic process in close relation with mechanical mineralization and related to special river hydrodynamics. The underflow of the transverse circulation is greatly important to the formation of step gentle slope dip face of river valley and placer gold accumulation.

关 键 词：河流 砂金 金矿床 聚集规律 水动力学 

分 类 号：P618.510.2[天文地球—矿床学] TV143[天文地球—地质学]