若尔盖510-1铀矿床微量元素地球化学特征
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摘要
该文对510-1铀矿床矿石及地层中的各类岩石的微量元素地球化学特征进行了研究,结果表明,该矿床是一个以铀为主,伴生有Mo、V、Co、Ni、Zn等多种成矿有用元素的多金属矿床。各种成矿金属元素在各类岩石中的分布特征各不相同,U与伴生有用成矿元素的相关性研究表明,Mo、V、Co、Ni、Zn在铀矿石中虽有明显富集和矿化,但与U无明显相关关系;该矿床的成矿物质来源与硅质岩、硅灰岩和岩浆岩关系较为密切,U在沉积过程中形成了初始富集,后期的岩浆叠加改造作用对多种元素的进一步富集起到了重要影响,富集多种微量元素的中酸性岩浆岩是多种成矿物质的重要来源。
In this paper,the trace element geochemistry of ore mineral and various rocks from the strata of510- 1 uranium deposit in Zoige were studied,the results show that the deposit is a polymetallic deposit which is uranium- based and associated with useful ore- forming elements,such as Mo,V,Co,Ni,Zn,etc. The distribution characteristics of various ore- forming metal elements in various rocks are different,the study of correlation between U and associated useful ore- forming elements showed that although Mo,V,Co,Ni,Zn in uranium ore are significantly enrichment and mineralization,but have no obvious correlation with U; The source of mineral is closely related with siliceous,siliceous limestone and magmatic rocks,Initial enrichment of U formed during deposition,and the magmatic superimposition and reformation played an important influence on further enrichment of various of ore- forming elements,intermediate acid magmatic rocks that enriched a variety of trace elements are important sources of many ore- forming materials.
In this paper,the trace element geochemistry of ore mineral and various rocks from the strata of510- 1 uranium deposit in Zoige were studied,the results show that the deposit is a polymetallic deposit which is uranium- based and associated with useful ore- forming elements,such as Mo,V,Co,Ni,Zn,etc. The distribution characteristics of various ore- forming metal elements in various rocks are different,the study of correlation between U and associated useful ore- forming elements showed that although Mo,V,Co,Ni,Zn in uranium ore are significantly enrichment and mineralization,but have no obvious correlation with U; The source of mineral is closely related with siliceous,siliceous limestone and magmatic rocks,Initial enrichment of U formed during deposition,and the magmatic superimposition and reformation played an important influence on further enrichment of various of ore- forming elements,intermediate acid magmatic rocks that enriched a variety of trace elements are important sources of many ore- forming materials.
引文
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[9]叶永钦.若尔盖铀矿田510-1铀矿床垂直分带特征研究[D].成都:成都理工大学硕士学位论文,2014.
[2]陈友良.若尔盖地区碳硅泥岩型铀矿床成矿流体成因和成矿模式研究[D].成都:成都理工大学博士学位论文,2008.
[3]陈友良,侯明才,朱西养,等.若尔盖铀矿田含矿岩系的岩石特征及成因探讨[J].成都理工大学学报:自然科学版,2007,53(4):555-558.
[4]陈友良.若尔盖铀矿田流体成矿地球化学示踪研究[J].矿物学报,2009增刊:301-303.
[5]黎彤,倪守斌.地球和地壳的化学元素丰度[M].北京:地质出版社,1990.
[6]赵兵,金景福.若尔盖铀成矿带区域地层(岩石)地球化学[J].地质地球化学,1996,24(5):28-31.
[7]赵兵.若尔盖铀成矿带地球化学与矿床成因研究[D].成都理工学院博士学位论文,1994.
[8]CHEN Y,YE Y,SONG H,et al.Vertical zoning characteristics of trace element in zoige 510-1 Uranium deposit,sichuan province,china[J].Acta Geologica Sinica(English Edition),2013,87(1):679-681.
[9]叶永钦.若尔盖铀矿田510-1铀矿床垂直分带特征研究[D].成都:成都理工大学硕士学位论文,2014.