阿根廷圣路易斯市La Viquita伟晶岩的磷矿组合

IF 1.1 4区地球科学 Q3 MINERALOGY

Canadian Mineralogist Pub Date : 2020-11-01 DOI:10.3749/CANMIN.1900106

M. A. Galliski, E. Roda-Robles, F. Hatert, M. F. Márquez-Zavalía, Viviana A Martínez

{"title":"阿根廷圣路易斯市La Viquita伟晶岩的磷矿组合","authors":"M. A. Galliski, E. Roda-Robles, F. Hatert, M. F. Márquez-Zavalía, Viviana A Martínez","doi":"10.3749/CANMIN.1900106","DOIUrl":null,"url":null,"abstract":"\n La Viquita is a rare-element pegmatite of LCT signature, REL-Li subclass, spodumene subtype, that shows Fe > Mn mineral paragenesis instead of Mn > Fe, which is more common in the rare-element pegmatite population of the San Luis ranges. The phosphate mineral association of this pegmatite can be subdivided into (1) primary, with dendritic triphylite [(Fe/(Fe + Mn) = 0.72] and montebrasite–amblygonite as main phases; (2) metasomatic, with subsolidus replacement of triphylite by ferrisicklerite and heterosite; and (3) hydrothermal, with secondary growth of alluaudite at the expense of heterosite and wardite from montebrasite caused by Na-metasomatism. A Ca-rich influx under oxidizing conditions produced childrenite–eosphorite–ernstite, jahnsite-(CaMnFe), and kingsmountite. Apatite-group minerals are present throughout the processes. Very late-stage solutions formed millimetric crystals of hydroxylherderite associated with hydroxylapatite in cavities in K-feldspar.","PeriodicalId":9455,"journal":{"name":"Canadian Mineralogist","volume":"58 1","pages":"733-746"},"PeriodicalIF":1.1000,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"The Phosphate mineral assemblages from La Viquita Pegmatite, San Luis, Argentina\",\"authors\":\"M. A. Galliski, E. Roda-Robles, F. Hatert, M. F. Márquez-Zavalía, Viviana A Martínez\",\"doi\":\"10.3749/CANMIN.1900106\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n La Viquita is a rare-element pegmatite of LCT signature, REL-Li subclass, spodumene subtype, that shows Fe > Mn mineral paragenesis instead of Mn > Fe, which is more common in the rare-element pegmatite population of the San Luis ranges. The phosphate mineral association of this pegmatite can be subdivided into (1) primary, with dendritic triphylite [(Fe/(Fe + Mn) = 0.72] and montebrasite–amblygonite as main phases; (2) metasomatic, with subsolidus replacement of triphylite by ferrisicklerite and heterosite; and (3) hydrothermal, with secondary growth of alluaudite at the expense of heterosite and wardite from montebrasite caused by Na-metasomatism. A Ca-rich influx under oxidizing conditions produced childrenite–eosphorite–ernstite, jahnsite-(CaMnFe), and kingsmountite. Apatite-group minerals are present throughout the processes. Very late-stage solutions formed millimetric crystals of hydroxylherderite associated with hydroxylapatite in cavities in K-feldspar.\",\"PeriodicalId\":9455,\"journal\":{\"name\":\"Canadian Mineralogist\",\"volume\":\"58 1\",\"pages\":\"733-746\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2020-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Canadian Mineralogist\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.3749/CANMIN.1900106\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MINERALOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Canadian Mineralogist","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.3749/CANMIN.1900106","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MINERALOGY","Score":null,"Total":0}

引用次数: 2

摘要

La Viquita为LCT特征、ll - li亚类、锂辉石亚型的稀土伟晶岩，表现为Fe > Mn矿物共生，而非Mn > Fe矿物共生，在圣路易斯山脉的稀土伟晶岩群中较为常见。该伟晶岩的磷矿组合可划分为(1)原生相，主要相为树枝状三叶石[(Fe/(Fe + Mn) = 0.72]和辉钼矿;(2)交代作用，由铁硅石和异质硅石代替三叶石;(3)水热作用下，钠交代作用导致异长石和辉钼矿次生生长。在氧化条件下富钙的流入产生了儿童-磷-铁矿，jahnsite-(CaMnFe)和kingsmounite。磷灰石群矿物在整个过程中都存在。在钾长石的孔洞中，非常晚期的溶液形成了与羟基磷灰石相关的毫米级羟基菱锌矿晶体。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

The Phosphate mineral assemblages from La Viquita Pegmatite, San Luis, Argentina

La Viquita is a rare-element pegmatite of LCT signature, REL-Li subclass, spodumene subtype, that shows Fe > Mn mineral paragenesis instead of Mn > Fe, which is more common in the rare-element pegmatite population of the San Luis ranges. The phosphate mineral association of this pegmatite can be subdivided into (1) primary, with dendritic triphylite [(Fe/(Fe + Mn) = 0.72] and montebrasite–amblygonite as main phases; (2) metasomatic, with subsolidus replacement of triphylite by ferrisicklerite and heterosite; and (3) hydrothermal, with secondary growth of alluaudite at the expense of heterosite and wardite from montebrasite caused by Na-metasomatism. A Ca-rich influx under oxidizing conditions produced childrenite–eosphorite–ernstite, jahnsite-(CaMnFe), and kingsmountite. Apatite-group minerals are present throughout the processes. Very late-stage solutions formed millimetric crystals of hydroxylherderite associated with hydroxylapatite in cavities in K-feldspar.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Canadian Mineralogist 地学-矿物学

CiteScore

2.20

自引率

22.20%

发文量

审稿时长

4-8 weeks

期刊介绍： Since 1962, The Canadian Mineralogist has published papers dealing with all aspects of mineralogy, crystallography, petrology, economic geology, geochemistry, and applied mineralogy.