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始新世末期至更新世末期,是华南氧化锰矿的大规模成矿期(李建威等,2008)。在温暖潮湿的古气候条件下,含锰源岩在表生地球化学作用下形成次生氧化锰矿,广泛分布在广西、湖南、云南、广东和福建等省区。湘南的蓝山盆地是氧化锰铁矿的重要矿集区之一。湘南中晚泥盆世蓝山盆地,地处华南构造区“灵山一衡阳台盆”的北段,新华夏系第二沉降带和第二隆起带的过渡地带,加里东褶皱带和海西-印支褶皱带的复合部位,属扬子板块边缘裂谷带拉张环境
From the end of Eocene to the end of the Pleistocene, it is a large-scale metallogenic stage of manganese oxide in southern China (Li et al., 2008). Under warm and humid paleoclimate conditions, the manganese-bearing source rocks form secondary manganese oxide under epigenetic geochemistry and are widely distributed in Guangxi, Hunan, Yunnan, Guangdong and Fujian provinces. The Lanshan Basin in southern Hunan is one of the important ore-gathering areas for manganese oxide and iron ore. The Mid-Late Middle Devonian Blue Mountains in southern Hunan is located in the northern part of the South China structural zone, the “Lingshan a balcony basin,” the transition zone between the second subsidence zone and the second uplift zone of the Neo-Huaxia series, the Caledonian fold belt and the sea West - Indosinian fold belt composite parts, is a Yangtze plate edge rift zone tension environment