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湘南─粤北是我国一个重要的铁锰多金属矿化带，该矿化带中重要的铁锰多金属矿床经历了海相沉积、热液改造和表生风化等多种地质作用。由沉积作用和热液改造作用形成的原生铁锰多金属矿化岩石，由于其中的成矿元素Fe、Mn、Pb、Zn和Ag的含量低，有害元素S的含量高，工业价值不大。通过表生风化作用后，原生铁锰多金属矿化岩石中易溶组分发生强烈淋失，矿石矿物组合也发生了根本变化。次生氧化矿石中有害元素S的含量大幅度降低，有用元素铁、锰、铅、锌、银含量明显升高，它们的平均富集系数基本都大于1．22，从而大大提高了矿石的经济价值。因此，表生风化作用对该矿带铁锰多金属矿床形成起到非常重要的作用。
Shonan-Yuebei is an important iron-manganese polymetallic mineralization belt in China. The important iron-manganese polymetallic deposits in this mineralization belt have undergone various geological functions such as marine sedimentation, hydrothermal transformation and epigenetic weathering. The native Fe-Mn polymetallic mineralized rocks formed by sedimentation and hydrothermal alteration have low industrial value due to the low content of mineral elements Fe, Mn, Pb, Zn and Ag and the high content of harmful elements S. Through the superficial weathering, the soluble components of the native ferromanganese polymetallic mineralized rocks are strongly leached, and the ore mineral assemblages also undergo fundamental changes. The content of harmful elements S in secondary oxide ore decreased greatly, and the content of useful elements such as iron, manganese, lead, zinc and silver increased obviously, and their average enrichment coefficients were basically greater than 1.22, which greatly enhanced the economy of ore value. Therefore, epigenetic weathering plays a very important role in the formation of iron-manganese polymetallic deposits in the ore belt.