Characters of the Skarn Metasomatic Column in the Middle and Lower Reaches of the Yangtze River Region and Deep Prospecting

• 责任者：Hua Linbao (East China Mineral Exploration and Development Bureau for Non-Ferrous Metals ; Nanjing 210073 ; China) ; Ding Meihua
• 刊名：Geological Survey and Research
• 出版年：2010
• 卷期：33(2)
• 关键词：夕卡岩 ; skarn ; 交代作用 ; metasomatism ; 金属矿 ; metal ores ; 长江中下游成矿带 ; Metallogenic Belt of Middle and Lower Reaches of Yangtze River
• 页码：p.115-129
• 图表：7 illus., 4 tables, 55 refs.
• 分类号：1001
• issnNo：ISSN1672-4135
• isbnNo：CN12-1353/P

The middle-lower reaches of the Yangtze River region is an important metallogenic belt of iron, copper and polymetallic in East China. It includes mainly skarn-type, stratabound skarn-type, porphyry-type, pulp-type, porphyrite-type iron and copper-polymetallic deposit in this region. Metal deposits are widely distributed in the calcareous skarn.  Generally, the metal deposits in this area should be permeable magmatic fluid ore-forming system. In the depth of skarn-porphyry copper deposit in Dongguashan (1 km) and copper deposit in Anqing (2.7 km, estimated), the authors pay attention to the breadth and intensity of the skarn and alkaline(potassium and sodium), which can be used as an important sign of deep prospecting.