文章摘要
黄啸坤,董志鸿,杨朋,吕登,沈丹,陈昌良,邓心雨,白阳,马坤元.华南五峰天垴锂矿区中二叠统旋回地层学及成矿富集规律研究[J].矿产勘查,2026,17(3):469-480
华南五峰天垴锂矿区中二叠统旋回地层学及成矿富集规律研究
Study on the Middle Permian cyclostratigraphy and mineralization enrichment regularities in the Tiannao Lithium Mining Area of Wufeng County, South China
投稿时间：2025-12-31  
DOI：10.20008/j.kckc.202603004
中文关键词: 天垴锂矿区  天文年代标尺  米兰科维奇旋回  成矿机制  天文驱动力
英文关键词: Tiannao lithium mining area  astronomical time scale  Milankovitch cycle  mineralization mecha-nism  orbital forcing
基金项目:本文受宜昌市地勘基金项目(YCZ2129-202301-01F)、中国地质调查局二级项目(DD202402022)、国家自然青年科学基金项目(42202030)、山西省基础研究计划青年科学研究项目(202303021212041，202103021223037，20210302124330)联合资助。
作者单位
黄啸坤 中国地质调查局武汉地质调查中心中南地质科技创新中心湖北武汉 430205
中国地质调查局花岗岩成岩成矿地质研究中心,湖北武汉 430205 
董志鸿 宜昌市地质勘查基金管理,中心,湖北宜昌 443000 
杨朋 湖北省地质局第七地质大队,湖北宜昌 443100 
吕登 湖北省地质局第七地质大队,湖北宜昌 443100 
沈丹 湖北省地质局第七地质大队,湖北宜昌 443100 
陈昌良 湖北省地质局第七地质大队,湖北宜昌 443100 
邓心雨 太原理工大学地球科学与测绘工程学院,山西太原 030024 
白阳 太原理工大学地球科学与测绘工程学院,山西太原 030024 
马坤元 太原理工大学地球科学与测绘工程学院,山西太原 030024 
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中文摘要:
      锂作为国家战略性关键矿产资源，广泛支撑新能源、航天航空、先进陶瓷、特种玻璃、高端医疗及核工业等前沿领域的发展需求。湖北省宜昌市五峰县天垴锂矿区二叠系阳新统梁山组(P2l)发育的黏土型锂矿具有重要资源潜力，但其成矿机制仍有待系统揭示。本研究选取铝元素(Al)与磁化率作为古气候替代指标，对天垴锂矿区 ZK2101钻孔开展旋回地层学分析，依托稳定的 405 ka长偏心率周期基准，建立了跨度约 5.2 Ma的连续高分辨率天文年代标尺，并定量厘定出 ZK2101钻孔中写经寺组、黄龙组、梁山组及栖霞组的沉积持续时间分别为(1±0.28)Ma、(0.3±0.28)Ma、(0.5±0.28)Ma和(3.4±0.28)Ma，钻孔平均沉积速率为 2.2 cm/ka。短偏心率与总能量比值的演化图谱显示，锂矿赋存层位梁山组具有显著较高偏心率能量特征；经调谐的 Al与磁化率时间序列沉积噪声模型，呈现出与海平面变化高度耦合的高分辨率沉积响应，清晰指示了梁山组沉积期海平面持续上升的动态过程。基于上述关键发现，本研究构建了天垴锂矿区二叠系阳新统梁山组黏土型锂矿“天文轨道驱动-沉积环境响应-锂元素富集”的多尺度联动机制，为区域锂矿勘探靶区优选提供了重要理论依据与科学支撑。
英文摘要:
      As a strategic critical mineral resource of national importance, lithium extensively supports the devel-opment needs of cutting-edge fields such as new energy, aerospace, advanced ceramics, specialty glass, high-endmedical applications, and the nuclear industry. The clay-type lithium deposit hosted in the Permian Yangxin StageLiangshan Formation (P2l) of the Tiannao mining area in Wufeng County, Yichang City, Hubei Province, holds sig-nificant resource potential; however, its metallogenic mechanisms remain to be systematically unraveled. This studyemploys aluminum (Al) and magnetic susceptibility as paleoclimate proxies to conduct cyclostratigraphic analysis onthe ZK2101 borehole in the Tiannao lithium mining area. Based on the stable 405 ka long-eccentricity cycle as thetuning target, a continuous high-resolution astronomical timescale spanning approximately 5.2 Ma is established.Quantitative determination reveals that the depositional durations of the Xiejingsi, Huanglong, Liangshan, and Qixiaformations in the ZK2101 borehole are (1±0.28) Ma, (0.3±0.28) Ma, (0.5±0.28) Ma, and (3.4±0.28) Ma, respectively,with an average sedimentation rate of 2.2 cm/ka. The evolution spectra of the short-eccentricity to total power ratiodemonstrates that the lithium-bearing Liangshan Formation exhibits notably higher eccentricity-band power charac-teristics. Tuned Al and magnetic susceptibility time series, analyzed via a sedimentary noise model, reveal high-resolution sedimentary responses tightly coupled with sea-level changes, clearly indicating a continuous sea-levelrise during the Liangshan Formation deposition. Based on these key findings, this study constructs a multiscale link-age mechanism of "orbitalforcing-sedimentary environment response-lithium enrichment" for the Permian YangxinStage Liangshan Formation clay-type lithium deposit in the Tiannao mining area, providing crucial theoretical foun-dations and scientific support for optimizing regional lithium exploration targets.
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