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李沛刚,赵芝,刘新星,顾文鳌,翁申富,雷志远.贵州务正道铝土矿区域成矿规律及其对整装勘查的意义[J].岩矿测试,2013,32(5):832-839
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Metallogeny of the Wuchuan-Zheng'an-Daozhen Bauxite Orefield and Its Significance for Uncompartmentalized Prospecting in Guizhou, China
投稿时间:2013-07-25  修订日期:2013-08-05
DOI:
Key words: bauxite deposit  Dazhuyuan  Wuchuan-Zheng'an-Daozhen area of North Guizhou  regional metallogeny  uncompartmentalized prospecting  integrated exploration
作者单位
李沛刚 贵州省地质矿产局106地质大队, 贵州 遵义 563000 
赵芝 国土资源部成矿作用与资源评价重点实验室, 中国地质科学院矿产资源研究所, 北京 100037 
刘新星 中国地质大学(北京)地球科学学院, 北京 100083 
顾文鳌 桂林理工大学地球科学学院, 广西 桂林 541004 
翁申富 贵州省地质矿产局106地质大队, 贵州 遵义 563000 
雷志远 贵州省地质矿产局106地质大队, 贵州 遵义 563000 
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Abstract:
      The Dazhuyuan bauxite deposit is one of the most important deposits discovered during recent decades, and the Wuchuan-Zheng'an-Daozhen bauxite area (simplified as Wuzhengdao area) has also been listed as one the first uncompartmentalized prospecting areas on the national level. In order to promote prospecting, it is urgent to summarize the characteristics of the Dazhuyuan typical deposit and the regional ore-forming condition and outline the metallogenic regularity for the Wuzhengdao bauxite area. Based on the analysis of ore-bearing strata, structure, paleoclimatology, palaeogeomorphology and palaeogeography, the distribution of ore-bearing strata (the Dazhuyuan Formation, C2d), the existence of ore-source strata (Hanjiadian Formation, S1hj), the dissolution of limestone from the basement (the Huanglong Formation, C2h), and the stable stretching of syncline are identified as the most four most important key-points for the further prospecting of bauxite deposits in this area. The Liyuan-Luchi syncline, the Zhangjiayuan syncline, the Datang syncline, the Xinmo syncline, the Daozhen syncline, the Taoyuan syncline, the Anchang syncline and the Huanxi syncline have also been chosen as the main targets for uncompartmentalized prospecting and ore-genetic models for different kinds of bauxite deposits have been built, clearing the key exploration prospecting direction. Since 2012, three superlarge-scale, four large-scale and three middle-scale bauxite deposits have been discovered and about 470 million ton of bauxite have been confirmed, which show a remarkable result of uncompartmentalized prospecting in the Wuzhengdao area, North Guizhou. The regularity and ore-genetic model for bauxite deposits, based on practice, can provide scientific evidence for uncompartmentalized prospecting and further exploration in the Wuzhengdao area.