| 杨光亮.黔西北地区梅树村期磷矿找矿潜力探究[J].地质找矿论丛,2024,39(4):513-518 |
| 黔西北地区梅树村期磷矿找矿潜力探究 |
| Potential of phosphorite ore prospecting of Meishucun stage in Northwest Guizhou province |
| 投稿时间：2024-04-01 |
| DOI：10.6053/j.issn.1001-1412.2024.04.008 |
| 中文关键词: 含磷岩系 梅树村期 找矿潜力 黔西北 |
| 英文关键词:phosphorous rock sequence Meishucun stage ore prospecting potential northwest Guizhou province |
| 基金项目: |
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| 中文摘要: |
| 震旦纪-寒武纪扬子陆块进入稳定发展时期,扬子地台周边深大断裂的活动及扬子地台内部大断裂的活动,使地台内部形成数个隆起和断陷。黔西北地区位于扬子地台西南缘,早寒武世含磷岩系以浅水碳酸盐岩含磷岩系为主。通过对研究区及周边含磷岩系剖面对比分析,黔西北地区在梅树村期大部处于潮上、潮间至潮下过渡环境,局部可能处于生物碎屑滩边缘部位,是磷块岩沉积的有利场所。受后期构造运动影响,黔西北地区下寒武统梅树村期含磷岩系的埋深总体由北西向南东方向逐渐变浅。 |
| 英文摘要: |
| The Sinian-Cambrian period was a stable development stage in Yangtze block. Deep faults in surrounding of the block and in the block resulted development of several uplifts and fault depressions. The area of Northwest Guizhou province is located on the northwest margin of the block and shallow water deposited phophorous-bearing carbonte rock sequence was developed during Early Cambrian Epoch in the area. Analysis and correction of sections of phosphorous-bearing sequence in the block to those in surroundings show that during Meishucun stage the sequence were generally deposited in the upper tidal and inter tidal traditional environments. Such environments are favorable for deposit ion of phosphorous sequence. Under influence of later tectonic movement the phosphorous-bearing sequence of Meishucun stage of Lower Cambrian Series in Northwest Guizhou province tends to be buried shallower from NW to SE direction. |
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