文章摘要
刘圣鑫,杜文洋,任旭,周鼎,刘雷,洪涛,刘晓阳,魏四华,孔令耀,张昌林.鄂西南白杨坪地区中二叠统梁山组富锂黏土岩中锂的赋存状态及成因模式探讨[J].矿产勘查,2026,17(1):69-83
鄂西南白杨坪地区中二叠统梁山组富锂黏土岩中锂的赋存状态及成因模式探讨
The discovery and significance of lithium-rich claystone in the Middle Permian Liangshan Formation in southwestern Hubei Province
投稿时间：2025-03-14  
DOI：10.20008/j.kckc.202601006
中文关键词: 黏土型锂矿  绿泥石  二叠纪  梁山组  鄂西南地区
英文关键词: clay-type lithium ore  cookeite  Permian  Liangshan Formation  southwest Hubei area
基金项目:本文受湖北省地质局矿产地质项目“鄂西南地区锂多金属矿调查评价”(KCDZ2022-16)，鄂西南锂矿资源勘查(KCDZ2023-17)北省地质创新联合基金(2023AFD226、2023AFB410、2025AFD455、2025AFD449)，湖北省地质局科技项目(KJ2024-17、KJ2025-13)联合资助，。湖
作者单位
刘圣鑫 湖北省地质调查院,湖北武汉 430034
资源与生态环境地质湖北省重点实验室,湖北武汉 430034 
杜文洋 湖北省地质调查院,湖北武汉 430034
湖北省地质勘查工程技术研究中心,湖北武汉 430034 
任旭 湖北省地质调查院,湖北武汉 430034
湖北省地质勘查工程技术研究中心,湖北武汉 430034 
周鼎 湖北省地质调查院,湖北武汉 430034 
刘雷 湖北省地质调查院,湖北武汉 430034 
洪涛 湖北省地质局第七地质大队,湖北宜昌 443000 
刘晓阳 湖北省地质调查院,湖北武汉 430034
资源与生态环境地质湖北省重点实验室,湖北武汉 430034 
魏四华 湖北省地质调查院,湖北武汉 430034
湖北省地质勘查工程技术研究中心,湖北武汉 430034 
孔令耀 湖北省地质调查院,湖北武汉 430034
资源与生态环境地质湖北省重点实验室,湖北武汉 430034 
张昌林 湖北省地质调查院,湖北武汉 430034
资源与生态环境地质湖北省重点实验室,湖北武汉 430034 
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中文摘要:
      沉积型锂矿作为锂资源的重要来源备受关注。鄂西南白杨坪地区中二叠统梁山组发育具潜在工业价值的富锂含炭黏土岩(Li2O含量 0.1%~0.56%)。为厘清梁山组富锂黏土岩的富集成因，本文开展了详细野外地质调查、岩石地球化学、扫描电镜-能谱分析(SEM-EDS)、X射线衍射分析(XRD)等系统性研究，探讨含炭黏土岩中锂的赋存状态及物质来源。研究结果表明，锂主要富集于梁山组中上部层位；含炭黏土岩中锂主要赋存于绿泥石中，部分存在于高岭石；黏土岩中不活动元素 Al、Ti、Zr、Hf、Sc及 REE特征指示其可能来源于中酸性火山岩，与桂西地区二叠系富锂黏土岩的地球化学特征相似；结合扬子地块内部桂西—川渝—鄂西地区二叠系富锂黏土岩的 Li含量的变化趋势，推测梁山组富锂黏土岩的形成可能与二叠纪火山(岩浆)事件有关，火山碎屑(火山灰)提供了主要物源。该成果不仅深化了对鄂西南地区沉积型锂矿成因机制的认识，也为在鄂西南乃至扬子周缘二叠纪地层中拓展锂矿找矿新方向提供了关键科学依据。
英文摘要:
      As an important source of lithium resources, sedimentary lithium deposits have attracted much atten-tion. Lithium-rich carbonaceous clay rocks (Li2O content of 0.1%-0.56%) with potential industrial value are devel-oped in the Middle Permian Liangshan Formation in Baiyangping area, southwestern Hubei Province. In order toclarify the enrichment genesis of lithium-rich clay rocks in Liangshan Formation, this paper carried out detailedfield geological survey, rock geochemistry, scanning electron microscopy-energy spectrum analysis (SEM-EDS), X-ray diffraction analysis (XRD) and other systematic studies to explore the occurrence state and material source oflithium in carbonaceous clay rocks.The results show that lithium is mainly enriched in the upper part of LiangshanFormation. Lithium in carbon-bearing clay rocks is mainly present in chlorite and partly in kaolinite. The character-istics of inactive elements (Al, Ti, Zr, Hf, Sc, REE) in the clay rock indicate that it may be derived fromintermediate-acid volcanic rocks, which is similar to the Permian lithium-rich clay rock in western Guangxi. Com-bined with the variation trend of Li content in Permian lithium-rich clay rocks in western Guangxi-Sichuan-Chongqing-western Hubei area within the Yangtze Block, it is speculated that the formation of lithium-rich clayrocks in Liangshan Formation is related to Permian volcanic (magmatic) events, and volcanic debris (volcanic ash)provides the main source. This result not only deepens the understanding of the genetic mechanism of sedimentarylithium deposits in southwestern Hubei, but also provides a key scientific basis for expanding the new direction oflithium ore prospecting in the Permian strata in southwestern Hubei and even the periphery of the Yangtze.
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