通过扫描电镜研究和电子探针分析，证明赛马碱性岩体中的“凤凰石”为Ca-RE-Th的硅酸盐固溶体，其化学通式为A10(BO4)6X2，A位的主要成分为稀土元素(RE)，属富钍铈硅磷灰石。样品为点式带状和连续带状蚀变结构，意味着矿物经历了不同程度的原生蚀变作用，同时Si和Th含量增加。由于变晶化作用和风化作用，导致富钍铈硅磷灰石的水化程度增加和A位阳离子减少。
参考文献
| [1] | Peng C;LIU Y .Fenghuanglite, a new apatite-like mineral of cerium earths and thorium[J].American Mineralogist,1963,48:211. |
| [2] | 彭琪瑞;邹祖荣;曹荣龙.凤城矿物志[M].北京:科学出版社,2001 |
| [3] | CLARK A M.Hey′s Mineral Index[M].London:Chapman & Hall Press,1993 |
| [4] | 张培善;陶克捷;杨主明.中国稀土矿物学[M].北京:科学出版社,2001 |
| [5] | WILLIAMS C T.Analysis of rare earth minerals[M].London:Chapman & Hall Press,1996:327-348. |
| [6] | Gregory R. Lumpkin;Rodney C. Ewing .Geochemical alteration of pyrochlore group minerals: Betafite subgroup[J].The American mineralogist,1996(9/10):1237-1248. |
| [7] | VASILYEVA Z V;TSEPIN A I.On zoned britholite[J].Geokhimiya,1980:730-739. |
| [8] | Ouzegane K;FOURCADE S;KIENAST J R et al.New carbonatite complexes in the Archean In′Ouzzal nucleus (Ahaggar, algeria): mineralogical and geochemical data[J].Contributions to Mineralogy and Petrology,1988,98:277-291. |
| [9] | Nickel E H;GRICE J D;The IMA .Commission on new minerals and mineral names: procedures and guidelines on mineral nomenclature, 1998[J].Canadian Mineralogy,1998,36:913-926. |
| [10] | Lumpkin G R;EWING R C .Geochemical alteration of pyrochlore group minerals: Microlite subgroup[J].American Mineralogist,1992,77:179-188. |
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%