以江西武山铜矿为例,研究了硫化物矿石在氧化过程中稀土元素的地球化学行为. 硫化物在氧化成为铁帽的过程中,稀土元素的迁移能力不强,大部分停留在硫化物矿石的氧化残余物中. 在这个过程中,稀土元素的模式发生了系统的改变: 铁帽的轻重稀土比值低于原生硫化物矿石的轻重稀土比值;铁帽中出现了Ce的负异常. 硫化物矿石在氧化成为铁帽的过程中,Eu异常基本没有发生改变.
参考文献
| [1] | Nesbitt H .Mobility and fractionation of rare earth elements during weathering of a granodiorite[J].Nature,1979,279:206. |
| [2] | Condie K C;Dengate J;Cullers R L .Behavior of rare earth elements in a paleoweathering profile on granodiorite in the Front Range,Colorado,USA[J].Geochimica et Cosmochimica Acta,1995,59:279. |
| [3] | Prudêncio M;Braga M;Gouveia M .REE mobilization,fractionation and precipitation during weathering of basalts[J].Chemical Geology,1993,107:251. |
| [4] | Gouveia M;Prudêncio M;Figueiredo M et al.Behaviour of REE and other trace and major elements during weathering of granitic rocks,évora,Portugal[J].Chemical Geology,1993,107:293. |
| [5] | 陈德潜,吴静淑.离子吸附型稀土矿床的成矿机制[J].中国稀土学报,1990(02):175. |
| [6] | 杨学明.江西大吉山花岗岩风化壳稀土矿床稀土元素地球化学[J].稀土,1999(01):1. |
| [7] | 陈炳辉 .华南风化壳稀土矿床稀土元素的生物地球化学[D].南京大学,2000. |
| [8] | 杨元根,刘丛强,袁可能.红壤中稀土元素结合形态的分布及分配[J].矿物学报,1998(04):417-424. |
| [9] | 黄成敏,龚子同.土壤发育过程中稀土元素的地球化学指示意义[J].中国稀土学报,2000(02):150-155. |
| [10] | Herzig P M;Hnnington M D;Scott S D et al.Gold-rich sea-floor gossans in the troodos ophiolite and on the Mid-Altantic Ridge[J].Economic Geology,1991,36:1747. |
| [11] | Mills R A;Elderfield H .Rare earth element geochemistry of hydrothermal deposits from the active TAG Mound,26°N Mid-Atlantic Ridge[J].Oceanographic Literature Review,1996,43:378. |
| [12] | 贺菊瑞;李瑛;孙南圭 等.中下扬子铁帽型金矿氧化剖面及成矿地球化学[J].中国地质科学院南京地质矿产研究所所刊,1991,12(01):25. |
| [13] | 李文达;王文斌;孙南圭.长江中下游硫化物矿床氧化带及铁帽评价研究[M].北京:地质出版社,1980 |
| [14] | 李瑛;贺菊瑞;孙南圭.长江中下游地区铁帽型金矿床[M].北京:地质出版社,1991 |
| [15] | Monecke T;Kempe U;G(o)tze J .Genetic significance of the trace element content in metamorphic and hydrothermal quartz:a reconnaissance study[J].Earth and Planetary Sciences Letters,2002,202:709. |
| [16] | 李厚民,沈远超,毛景文,刘铁兵,朱和平.石英、黄铁矿及其包裹体的稀土元素特征--以胶东焦家式金矿为例[J].岩石学报,2003(02):267-274. |
| [17] | 高剑峰,陆建军,赖鸣远,林雨萍,濮巍.岩石样品中微量元素的高分辨率等离子质谱分析[J].南京大学学报(自然科学版),2003(06):844-850. |
| [18] | Henderson P.Rare Earth Element Geochemistry[M].Amsterdam:Elsevier Science Publisher,1984 |
| [19] | Wood S A .The aqueous geochemistry of the rare earth elements and yttrium,1.Review of available low temperature data for inorganic complexes and inorganic REE speciation of natural waters[J].Chemical Geology,1990,82:159. |
| [20] | Johannesson K H;Lyons W B;Yelken M A et al.Geochemistry of the rare-earth elements in hypersaline and dilute acidic natural terrestrial waters:Complexation behavior and middle rare-earth element enrichments[J].Chemical Geology,1996,133:125. |
| [21] | Bau M;Usui A;Pracejus B et al.Geochemistry of low-temperature water-rock interaction:evidence from natural waters,andesite,and iron-oxyhydroxide precipitates at Nishiki-numa iron-spring,Hokkaido,Japan[J].Chemical Geology,1998,151:293. |
| [22] | Millero F J .Stability constants for the formation of rare earth inorganic complexes as a function of ionic strength[J].Geochimica et Cosmochimica Acta,1992,56:3123. |
| [23] | Schijf J;Byrne RH .Determination of (SO4)beta(1) for yttrium and the rare earth elements at I=0.66 m and t=25 degrees C - Implications for YREE solution speciation in sulfate-rich waters[J].Geochimica et Cosmochimica Acta: Journal of the Geochemical Society and the Meteoritical Society,2004(13):2825-2837. |
| [24] | Verplanck PL;Nordstrom DK;Taylor HE;Kimball BA .Rare earth element partitioning between hydrous ferric oxides and acid mine water during iron oxidation[J].Applied Geochemistry: Journal of the International Association of Geochemistry and Cosmochemistry,2004(8):1339-1354. |
| [25] | Brookins D .Aqueous Geochemistry of Rare Earth Elements,in Geochemistry and Mineralogy of Rare Earth Elements[J].Reviews in Mineralogy,Mineralogical Society of America,1989,21:201. |
| [26] | Sverjensky D .Europium redox equilibra in aqueous solution[J].Earth and Planetary Sciences Letters,1984,67:70. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%