| 吴波,陈国勇,杨毓红,唐龙,令狐勇.贵州开阳-福泉地区早震旦世含磷岩系及岩相古地理[J].贵州地质,2025,42(3):335-344 |
| 贵州开阳-福泉地区早震旦世含磷岩系及岩相古地理 |
| Early Sinian Phosphorus Bearing Rock Series in Kaiyang-Fuquan Area, Guizhou and Lithofacies Paleogeography |
| 投稿时间：2025-04-27 |
| DOI： |
| 中文关键词: 含磷岩系 岩相古地理 早震旦世 开阳-福泉地区 贵州省 |
| 英文关键词:Phosphate bearing rock series Lithofacies paleogeography,Early Sinian period |
| 基金项目:贵州省新一轮找矿突破战略行动项目《贵州省重要矿产资源矿集区区划研究》(黔自然资函〔2024〕42号) |
|
| 摘要点击次数: 0 |
| 全文下载次数: 0 |
| 中文摘要: |
| 贵州开阳-福泉地区早震旦世含磷岩系为震旦系下统洋水组，含磷岩系自下而上依次沉积硅质白云岩-磷块岩矿层a矿层-白云岩-磷块岩矿层b矿层(开阳地区缺失a矿层)。本文依托新一轮找矿突破战略行动项目成果，通过收集以往施工探矿工程资料，编制开阳-福泉地区含磷岩系厚度、矿层厚度、矿层品位等值线图。在此基础上结合沉积环境特征提出了开阳-福泉地区早震旦世陡山沱期磷矿岩相古地理划分方案，大致以花梨-龙水-高水为界，以西为无障壁沉积，为开阔初始台地相，进一步划分为后滨相、前滨相、临滨相；以东为有障壁沉积，为局限初始台地相，进一步划分为潮上带、潮间带、潮下带。该区域岩相古地理的划分对磷矿成矿预测及攻深找盲具有重要意义。 |
| 英文摘要: |
| The Early Sinian phosphorus bearing rock series in the Kaiyang-Fuquan area of Guizhou province belongs to the Yangshui formation of the Lower Sinian system. The phosphorus bearing rock series deposited siliceous dolomite phosphate rock mineral layer a, dolomite phosphate rock mineral layer b from bottom to top (the A mineral layer is missing in the Kaiyang area). In this paper, it relies on the achievements of the new round of breakthrough strategic projects in mineral exploration, and compiles contour maps of the thickness of phosphate bearing rock series, ore layer thickness, and ore layer grade in the Fuquan area of Kaiyang by collecting previous construction and exploration engineering data. On this basis, combined with the characteristics of the sedimentary environment, a lithofacies paleographic division scheme for the Early Sinian Doushantuo phosphate ore in the Fuquan area of Kaiyang was proposed. The division is roughly based on the boundary of Huali-Longshui-Gaoshui, with unobstructed sedimentation to the west and open initial platform facies. It is further divided into posterior shore facies, anterior shore facies, and adjacent shore facies; Io the east, it is a barrier deposit, which is a limited initial platform facies, further divided into intertidal belt, intertidal belt and subtidal belt. The division of lithofacies and paleogeography in this area is of great significance for the prediction of phosphate mineralization and the deep deposit exploration. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
