Geological Characteristics and Genetic Mechanism of Zhuerzhougou Ferromanganese Ore in the Eastern Part of Xingmeng Mountain Orogenic Belt
The Zhuerzhougou ferromanganese deposit is located in the eastern part of the Xingmeng Mountain Orogenic belt,which is a typical accretionary orogenic belt.The ore-bearing strata in the mining area consist of a set of normal sedimentary clastic rocks,with a lithologic assemblage of feldspar quartz sandstone,Fe-Mn stained feldspar quartz sandstone,Fe-Mn deposit,and siltstone,totaling a thickness of 265 m.The strata are controlled by a northwest anticline,and the ore bodies are distributed within the interlayer broken zone of the gritstone and melange on the two wings of the anticline structure.The ore minerals primarily include hematite,hard manganese,pyrolusite,goethite,fibritite(limonite),and silver pyroxene.The metallogenic geological process of this deposit has experienced three stages:colloidal chemical sedimentary differentiation,hydrothermal metasomatism,and weathering leaching metasomatism.The main source of ore-forming materials is the ultrabasic melanomy in the area,which is rich in iron and manganese.After weathering and denudation,an initial source layer of iron and manganese is formed in the basin.The iron manganese deposit was formed following hydrothermal transformation,weathering denudation,and leaching.
Xingmeng Mountain Orogenic beltOrebodies formationOre-controlling factorsGenesis of deposit
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