Petrology and mineralogy of the Viñales meteorite, the latest fall in Cuba
The new Cuban chondrite, Viñales, fell on February first, 2019 at Pinar del Rio, northwest of Cuba (22°37ʹ10″N, 83°44ʹ34″W). A total of about 50–100 kg of the meteorite were collected and the masses of individual samples are in a range 2–1100 g. Two polished thin sections were studied by optical mic...
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| description | The new Cuban chondrite, Viñales, fell on February first, 2019 at Pinar del Rio, northwest of Cuba (22°37ʹ10″N, 83°44ʹ34″W). A total of about 50–100 kg of the meteorite were collected and the masses of individual samples are in a range 2–1100 g. Two polished thin sections were studied by optical microscope, Raman spectroscopy and electron microprobe analysis in this study. The meteorite mainly consists of olivine (Fa24.6), low-Ca pyroxene (Fs20.5), and troilite and Fe-Ni metal, with minor amounts of feldspar (Ab82.4-84.7). Three poorly metamorphosed porphyritic olivine-pyroxene and barred olivine chondrules are observed. The homogeneous chemical compositions and petrographic textures indicate that Viñales is a L6 chondrite. The Viñles has fresh black fusion crust with layered structure, indicating it experienced a high temperature of ~1650°C during atmospheric entry. Black shock melt veins with width of 100–600 μm are pervasive in the Viñales and olivine, bronzite, and metal phases are dominate minerals of the shock melt vein. The shock features of major silicate minerals suggest a shock stage S3, partly S4, and the shock pressure could be > 10 GPa. |
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A total of about 50–100 kg of the meteorite were collected and the masses of individual samples are in a range 2–1100 g. Two polished thin sections were studied by optical microscope, Raman spectroscopy and electron microprobe analysis in this study. The meteorite mainly consists of olivine (Fa24.6), low-Ca pyroxene (Fs20.5), and troilite and Fe-Ni metal, with minor amounts of feldspar (Ab82.4-84.7). Three poorly metamorphosed porphyritic olivine-pyroxene and barred olivine chondrules are observed. The homogeneous chemical compositions and petrographic textures indicate that Viñales is a L6 chondrite. The Viñles has fresh black fusion crust with layered structure, indicating it experienced a high temperature of ~1650°C during atmospheric entry. Black shock melt veins with width of 100–600 μm are pervasive in the Viñales and olivine, bronzite, and metal phases are dominate minerals of the shock melt vein. The shock features of major silicate minerals suggest a shock stage S3, partly S4, and the shock pressure could be > 10 GPa.</description><identifier>ISSN: 0036-8504</identifier><identifier>EISSN: 2047-7163</identifier><identifier>DOI: 10.1177/00368504211019859</identifier><identifier>PMID: 34019459</identifier><language>eng</language><publisher>London, England: Sage Publications, Ltd</publisher><subject>Atmospheric entry ; Calcium ; Chemical composition ; Cuba ; Electron microprobe ; Electron probe microanalysis ; Electron probes ; High temperature ; Iron ; Melting ; Meteoroids ; Meteors & meteorites ; Mineralogy ; Minerals ; Minerals - analysis ; Minerals - chemistry ; Nickel ; Olivine ; Optical microscopes ; Petrology ; Pyroxenes ; Raman spectroscopy ; Shock ; Spectrum Analysis, Raman ; Troilite</subject><ispartof>Science progress (1916), 2021-04, Vol.104 (2), p.1-12</ispartof><rights>The Author(s) 2021</rights><rights>2021. This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License ( https://creativecommons.org/licenses/by-nc/4.0/ ) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages ( https://us.sagepub.com/en-us/nam/open-access-at-sage ). 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A total of about 50–100 kg of the meteorite were collected and the masses of individual samples are in a range 2–1100 g. Two polished thin sections were studied by optical microscope, Raman spectroscopy and electron microprobe analysis in this study. The meteorite mainly consists of olivine (Fa24.6), low-Ca pyroxene (Fs20.5), and troilite and Fe-Ni metal, with minor amounts of feldspar (Ab82.4-84.7). Three poorly metamorphosed porphyritic olivine-pyroxene and barred olivine chondrules are observed. The homogeneous chemical compositions and petrographic textures indicate that Viñales is a L6 chondrite. The Viñles has fresh black fusion crust with layered structure, indicating it experienced a high temperature of ~1650°C during atmospheric entry. Black shock melt veins with width of 100–600 μm are pervasive in the Viñales and olivine, bronzite, and metal phases are dominate minerals of the shock melt vein. The shock features of major silicate minerals suggest a shock stage S3, partly S4, and the shock pressure could be > 10 GPa.</description><subject>Atmospheric entry</subject><subject>Calcium</subject><subject>Chemical composition</subject><subject>Cuba</subject><subject>Electron microprobe</subject><subject>Electron probe microanalysis</subject><subject>Electron probes</subject><subject>High temperature</subject><subject>Iron</subject><subject>Melting</subject><subject>Meteoroids</subject><subject>Meteors & meteorites</subject><subject>Mineralogy</subject><subject>Minerals</subject><subject>Minerals - analysis</subject><subject>Minerals - chemistry</subject><subject>Nickel</subject><subject>Olivine</subject><subject>Optical microscopes</subject><subject>Petrology</subject><subject>Pyroxenes</subject><subject>Raman spectroscopy</subject><subject>Shock</subject><subject>Spectrum Analysis, Raman</subject><subject>Troilite</subject><issn>0036-8504</issn><issn>2047-7163</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>AFRWT</sourceid><sourceid>EIF</sourceid><recordid>eNp9kc9u1DAQxi1ERZfCA3AAReLCgS3j2GM7pwqtCq2oBAfgajnOZJtVEhc7Qepj8Qx9MbzddvkncbE1nt_3eUYfY884HHOu9RsAoQyCLDkHXhmsHrBFCVIvNVfiIVts-8stcMgep7QB4MiVecQOhcy8xGrBPnyiKYY-rK8LNzbF0I0U3W0Z2mK6pOJrd_PD9ZSKgSYKsZvo9e177yZKU9G6vi-6sVjNtXvCDnKZ6OndfcS-vDv9vDpbXnx8f756e7H0EmSVB6o9euWEpkbopmmlFEa1nrR3deXQUI1YCoeARvuak1ayUUrJqkVeKxBH7GTnezXXAzWexinPbK9iN7h4bYPr7J-dsbu06_DdcpAoK1Nmh1d3DjF8m_MeduiSp753I4U52RIFL8GUXGb05V_oJsxxzPtlCjnmA0ym-I7yMaQUqd1Pw8Fus7L_ZJU1L35fY6-4DycDxzsguTX9-vZ_js93gk2aQtwblhqkAETxE7aqpWQ</recordid><startdate>202104</startdate><enddate>202104</enddate><creator>Yin, Feng</creator><creator>Dai, Deqiu</creator><general>Sage Publications, Ltd</general><general>SAGE Publications</general><general>Sage Publications Ltd</general><scope>AFRWT</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JQ2</scope><scope>K9.</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-0277-4005</orcidid></search><sort><creationdate>202104</creationdate><title>Petrology and mineralogy of the Viñales meteorite, the latest fall in Cuba</title><author>Yin, Feng ; Dai, Deqiu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4049-85bc5c6a37ed37ddf44386fce7cab9a58eb5523a50587cb1e764d66649f51b603</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Atmospheric entry</topic><topic>Calcium</topic><topic>Chemical composition</topic><topic>Cuba</topic><topic>Electron microprobe</topic><topic>Electron probe microanalysis</topic><topic>Electron probes</topic><topic>High temperature</topic><topic>Iron</topic><topic>Melting</topic><topic>Meteoroids</topic><topic>Meteors & meteorites</topic><topic>Mineralogy</topic><topic>Minerals</topic><topic>Minerals - analysis</topic><topic>Minerals - chemistry</topic><topic>Nickel</topic><topic>Olivine</topic><topic>Optical microscopes</topic><topic>Petrology</topic><topic>Pyroxenes</topic><topic>Raman spectroscopy</topic><topic>Shock</topic><topic>Spectrum Analysis, Raman</topic><topic>Troilite</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yin, Feng</creatorcontrib><creatorcontrib>Dai, Deqiu</creatorcontrib><collection>Sage Journals GOLD Open Access 2024</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Science progress (1916)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yin, Feng</au><au>Dai, Deqiu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Petrology and mineralogy of the Viñales meteorite, the latest fall in Cuba</atitle><jtitle>Science progress (1916)</jtitle><addtitle>Sci Prog</addtitle><date>2021-04</date><risdate>2021</risdate><volume>104</volume><issue>2</issue><spage>1</spage><epage>12</epage><pages>1-12</pages><issn>0036-8504</issn><eissn>2047-7163</eissn><abstract>The new Cuban chondrite, Viñales, fell on February first, 2019 at Pinar del Rio, northwest of Cuba (22°37ʹ10″N, 83°44ʹ34″W). 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| subjects | Atmospheric entry Calcium Chemical composition Cuba Electron microprobe Electron probe microanalysis Electron probes High temperature Iron Melting Meteoroids Meteors & meteorites Mineralogy Minerals Minerals - analysis Minerals - chemistry Nickel Olivine Optical microscopes Petrology Pyroxenes Raman spectroscopy Shock Spectrum Analysis, Raman Troilite |
| title | Petrology and mineralogy of the Viñales meteorite, the latest fall in Cuba |
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