摘要
鸡冠石银金矿床发育在岩体的内部，矿体呈直立的充填脉状。以含银金块状黄铁矿矿石为主，∑ ＲＥＥ＝１０９．２４８ Ｘ １０－６－４．１８ Ｘ １０－６，δＥｕ＝２．４０－０．９０，∑ＬＲＥＥ／∑ＨＲＥＥ＝１２．８１－８．４９。稀土元素球粒陨 石标准化组成模式为右斜型。成矿物质来源于２０－３０ｋｍ深度的中酸性岩浆熔离形成的超基性岩浆。
The Jiguanshi silver and gold ore deposit was developed inside a rock body The ore body is vertically infilling vein - like and dominated by silver and gold - beating massive pyrite ores with REE = 109. 248 - 4. 18, Eu = 2. 40 - 0. 90. and LREE/ HREE = 12. 81 ~ 8. 94. The REE chondrite normalization model is in a right - dipping form. The melallogenic substance is sourced from the 20 ~ 30km deep ultrabasic magma resulted from the dissolving and separation of the intermediate - acid magma.
出处
《安徽地质》
2000年第1期51-57,共7页
Geology of Anhui
关键词
稀土元素
银金矿床
矽卡岩浆
贯入充填
REE
silver and gold deopsit
skarn magma
injection filling
