| 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 |
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| 引用本文： | 周江羽,刘常青.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[J].沉积学报,1997,15(1):123-127. |
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| 作者姓名： | 周江羽 刘常青 |
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| 作者单位： | 中国地质大学, 武汉 430074 |
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| 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，其中横向环境的底流对于形成河谷台阶状缓坡倾斜面及砂金聚集具有重要意义。
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| 关 键 词： | 胶东西北部 河流沉积环境 砂金 流体 |
| 收稿时间： | 1995-03-28 |
Accumulation of Modern Placer Gold in River and Its Hydrodynamics Explanation in the Northwest Area in Jiaodong |
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| Zhou Jiangyu and Liu Changqing.Accumulation of Modern Placer Gold in River and Its Hydrodynamics Explanation in the Northwest Area in Jiaodong[J].Acta Sedimentologica Sinica,1997,15(1):123-127. |
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| Authors: | Zhou Jiangyu and Liu Changqing |
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| Institution: | China University of Geosciences Wuhan 430074 |
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| Abstract: | 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. |
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| Keywords: | the northwest area in the Jiao dong peninsula river sedimentary environment placer gold fluid |
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