Study on Ore Occurrence of Laiwu Contact and Geothermal Metasomatic Iron Deposit in Shandong Province

During the study on geological characteristics of Laiwu contact geothermal metasomatic iron deposit,it is found that the information of ore bodies contaction o given in the former report is in messy,which caused distortion of ore body shape.In order to contrast ore bodies and recognize mineralization rule,classification principle of ore bodies are put forward,and the ore bodies are classified by using trichotomy method.The change of ore occurrence is the result of ore expansion and contraction,and branch recombination and thinning out.According to morphological classification,ore prospecting directions are pointed out.Different ore bodies reflect different ore-controlling structures,different ore body sizes,and different rock ore occurrences.Monocline dipping ore body mass is the bedrock mineralization,and ore-controlling scale is small.Ore-forming rock of steep inclined ore bodies is rock cover,and ore-controlling scale is large.