| 杨旭,翟鑫,李江,陈仕珣,孙正楷.滇中地区梁山组含锂、铝岩系地质特征及找矿标志[J].矿产勘查,2026,17(S1):47-56 |
| 滇中地区梁山组含锂、铝岩系地质特征及找矿标志 |
| Geological characteristics and prospecting indicators of lithium and aluminum-bearing rock series of the Liangshan Formation in central Yunnan |
| 投稿时间：2026-01-05 修订日期：2026-01-21 |
| DOI：10.20008/j.kckc.2026S1006 |
| 中文关键词: 含锂铝土矿 滇中地区 地质特征 找矿标志 |
| 英文关键词: lithium-bearing bauxite central Yunnan geological characteristics prospecting criteria |
| 基金项目:本文受云南省有色地质局自主投资项目“滇中锂铝大型资源勘查基地找矿潜力与勘查方法研究”资助。 |
|
| 摘要点击次数: 12 |
| 全文下载次数: 1 |
| 中文摘要: |
| 滇中地区中二叠统梁山组是黏土锂和铝土矿的主要赋存层位，分布范围广泛。为进一步了解成矿区含锂铝土矿的找矿潜力和指导下一步找矿工作。本文通过成矿地质特征及成矿环境分析和典型矿床解剖进行研究。研究发现，含矿地层为一套滨海—湖沼相沉积层，矿体形成受沉积环境、古气候、物质来源等条件影响。该组地层平行不整合于石炭系黄龙组或寒武系娄山关组碳酸盐岩不平整面之上，整合于二叠系阳新组之下，矿体严格受地层控制。矿石自然类型以致密状含锂铝土矿、豆状-鲕状含锂铝土矿、土状含锂铝土矿和碎屑状含锂铝土矿为主。矿物以高岭石、硬水铝石、三水铝石、绿泥石、石英等为主，金属矿物主要有黄铁矿和赤铁矿；伴生有镓、稀土、耐火黏土等矿产。含锂、铝矿石具有“低阻-中高极化率”的地球物理特征，与围岩物性差异明显。 |
| 英文摘要: |
| The Liangshan Formation of the Middle Permian in Central Yunnan is the main host stratum for clay lithium and bauxite， with a wide distribution range. To further understand the prospecting potential of lithium-bearing bauxite in the metallogenic belt and guide subsequent prospecting work， this paper conducts research through the analysis of metallogenic geological characteristics and metallogenic environments as well as the dissection of typical ore deposits.The study shows that the ore-bearing stratum is a set of littoral-lacustrine swamp facies sedimentary layers， and the orebody formation is affected by sedimentary environment， paleoclimate， material source and other conditions. This formation lies parallel unconformably on the uneven surface of the Carboniferous Huanglong Formation or the Cambrian Loushanguan Formation carbonate rocks， and conformably under the Permian Yangxin Formation， with orebodies strictly controlled by the strata.The natural types of ores are mainly dense lithium-bearing bauxite， pisolitic-oolitic lithium-bearing bauxite， earthy lithium-bearing bauxite and clastic lithium-bearing bauxite. The major minerals include kaolinite， diaspore， gibbsite， chlorite and quartz， while the metallic minerals are mainly pyrite and hematite. Associated minerals include gallium， rare earth elements and refractory clay.Lithium-aluminum-bearing ores exhibit geophysical characteristics of low resistivity and medium-high polarizability， showing obvious differences in physical properties from the surrounding rocks. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |