{"title":"保加利亚中部罗多坡阿塞尼察和阿尔达单元变质岩中金红石的地球化学--初步结果","authors":"Milena Georgieva, Tzvetomila Vladinova","doi":"10.52215/rev.bgs.2023.84.3.97","DOIUrl":null,"url":null,"abstract":"We present new data on the geochemistry of rutiles from metamorphic rock of the Asenitsa and Arda Units, Central Rhodope Massif, Bulgaria. Trace elements in studied rutiles show large variations that depend on protolith type (metapelites and metabasites), metamorphic grade, the rock geochemistry and mineral association. Zr-in-rutile thermometry distinguishes the rutiles from both units with higher temperatures (650–750 °C) for the Arda Unit and lower temperatures (520–630 °C) for the Asenitsa Unit. The uranium content of most rutiles is too low (<0.5 ppm) for U-Pb dating.","PeriodicalId":509487,"journal":{"name":"Review of the Bulgarian Geological Society","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Geochemistry of rutiles from metamorphic rocks of Asenitsa and Arda Units, Central Rhodope, Bulgaria – preliminary results\",\"authors\":\"Milena Georgieva, Tzvetomila Vladinova\",\"doi\":\"10.52215/rev.bgs.2023.84.3.97\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We present new data on the geochemistry of rutiles from metamorphic rock of the Asenitsa and Arda Units, Central Rhodope Massif, Bulgaria. Trace elements in studied rutiles show large variations that depend on protolith type (metapelites and metabasites), metamorphic grade, the rock geochemistry and mineral association. Zr-in-rutile thermometry distinguishes the rutiles from both units with higher temperatures (650–750 °C) for the Arda Unit and lower temperatures (520–630 °C) for the Asenitsa Unit. The uranium content of most rutiles is too low (<0.5 ppm) for U-Pb dating.\",\"PeriodicalId\":509487,\"journal\":{\"name\":\"Review of the Bulgarian Geological Society\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Review of the Bulgarian Geological Society\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.52215/rev.bgs.2023.84.3.97\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Review of the Bulgarian Geological Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.52215/rev.bgs.2023.84.3.97","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Geochemistry of rutiles from metamorphic rocks of Asenitsa and Arda Units, Central Rhodope, Bulgaria – preliminary results
We present new data on the geochemistry of rutiles from metamorphic rock of the Asenitsa and Arda Units, Central Rhodope Massif, Bulgaria. Trace elements in studied rutiles show large variations that depend on protolith type (metapelites and metabasites), metamorphic grade, the rock geochemistry and mineral association. Zr-in-rutile thermometry distinguishes the rutiles from both units with higher temperatures (650–750 °C) for the Arda Unit and lower temperatures (520–630 °C) for the Asenitsa Unit. The uranium content of most rutiles is too low (<0.5 ppm) for U-Pb dating.
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