{"title":"意大利托斯卡纳富CO2黑绿岩中CO2的分布","authors":"M. Kanzaki","doi":"10.2465/jmps.200611","DOIUrl":null,"url":null,"abstract":"CO 2 distribution in M 12 and M 14 cages of CO 2 – rich melanophlogite from Fortunillo, was studied using synchrotron powder X – ray di ff raction. Original and two heat – treated samples at 500 and 1000 °C were studied at room temperature. The di ff raction patterns of these samples can be indexed as a cubic cell ( Pm (cid:1)3 n ). For the non – heated sample, CO 2 occupancy for M 14 cage is close to unity, whereas about 0.85 for M 12 cage. For the 500 °C – heated sample, the occupancies for M 14 and M 12 cages are reduced to 0.79 and 0.57, respectively. Present study showed that CO 2 has preference to M 14 cage, but substantial CO 2 occupies M 12 cage. The electron distributions obtained by MEM analysis clearly reveal orientationally ordered CO 2 distribution in M 12 and M 14 cages. Present result is also used to clarify a recently proposed interpretation for the splitting of CO 2 Raman vibrational peak for the heat – treated melanophlogite.","PeriodicalId":51093,"journal":{"name":"Journal of Mineralogical and Petrological Sciences","volume":" ","pages":""},"PeriodicalIF":0.9000,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"CO2 distribution in CO2–rich melanophlogite from Fortunillo, Tuscany, Italy\",\"authors\":\"M. Kanzaki\",\"doi\":\"10.2465/jmps.200611\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"CO 2 distribution in M 12 and M 14 cages of CO 2 – rich melanophlogite from Fortunillo, was studied using synchrotron powder X – ray di ff raction. Original and two heat – treated samples at 500 and 1000 °C were studied at room temperature. The di ff raction patterns of these samples can be indexed as a cubic cell ( Pm (cid:1)3 n ). For the non – heated sample, CO 2 occupancy for M 14 cage is close to unity, whereas about 0.85 for M 12 cage. For the 500 °C – heated sample, the occupancies for M 14 and M 12 cages are reduced to 0.79 and 0.57, respectively. Present study showed that CO 2 has preference to M 14 cage, but substantial CO 2 occupies M 12 cage. The electron distributions obtained by MEM analysis clearly reveal orientationally ordered CO 2 distribution in M 12 and M 14 cages. Present result is also used to clarify a recently proposed interpretation for the splitting of CO 2 Raman vibrational peak for the heat – treated melanophlogite.\",\"PeriodicalId\":51093,\"journal\":{\"name\":\"Journal of Mineralogical and Petrological Sciences\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2020-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Mineralogical and Petrological Sciences\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.2465/jmps.200611\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MINERALOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Mineralogical and Petrological Sciences","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.2465/jmps.200611","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MINERALOGY","Score":null,"Total":0}
CO2 distribution in CO2–rich melanophlogite from Fortunillo, Tuscany, Italy
CO 2 distribution in M 12 and M 14 cages of CO 2 – rich melanophlogite from Fortunillo, was studied using synchrotron powder X – ray di ff raction. Original and two heat – treated samples at 500 and 1000 °C were studied at room temperature. The di ff raction patterns of these samples can be indexed as a cubic cell ( Pm (cid:1)3 n ). For the non – heated sample, CO 2 occupancy for M 14 cage is close to unity, whereas about 0.85 for M 12 cage. For the 500 °C – heated sample, the occupancies for M 14 and M 12 cages are reduced to 0.79 and 0.57, respectively. Present study showed that CO 2 has preference to M 14 cage, but substantial CO 2 occupies M 12 cage. The electron distributions obtained by MEM analysis clearly reveal orientationally ordered CO 2 distribution in M 12 and M 14 cages. Present result is also used to clarify a recently proposed interpretation for the splitting of CO 2 Raman vibrational peak for the heat – treated melanophlogite.
期刊介绍：
The Journal of Mineralogical and Petrological Sciences (JMPS) publishes original articles, reviews and letters in the fields of mineralogy, petrology, economic geology, geochemistry, planetary materials science, and related scientific fields. As an international journal, we aim to provide worldwide diffusion for the results of research in Japan, as well as to serve as a medium with high impact factor for the global scientific communication
Given the remarkable rate at which publications have been expanding to include several fields, including planetary and earth sciences, materials science, and instrumental analysis technology, the journal aims to encourage and develop a variety of such new interdisciplinary scientific fields, to encourage the wide scope of such new fields to bloom in the future, and to contribute to the rapidly growing international scientific community.
To cope with this emerging scientific environment, in April 2000 the journal''s two parent societies, MSJ* (The Mineralogical Society of Japan) and JAMPEG* (The Japanese Association of Mineralogists, Petrologists and Economic Geologists), combined their respective journals (the Mineralogical Journal and the Journal of Mineralogy, Petrology and Economic Geology). The result of this merger was the Journal of Mineralogical and Petrological Sciences, which has a greatly expanded and enriched scope compared to its predecessors.
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