Surface Typochemistry of Native Gold
Using the methods of electron spectroscopy of the surface and SEM–EDS, it is shown that native gold of the deposit related to the epithermal Au–Ag ore formation contains oxidized gold with an oxidation degree of Au (I) or higher on the surface. A thin layer (~15 nm) with high concentrations of Ag an...
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| Veröffentlicht in: | Doklady earth sciences 2018-05, Vol.480 (1), p.624-630 |
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| container_title | Doklady earth sciences |
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| creator | Tauson, V. L. Kravtsova, R. G. Lipko, S. V. Makshakov, A. S. Arsentev, K. Yu |
| description | Using the methods of electron spectroscopy of the surface and SEM–EDS, it is shown that native gold of the deposit related to the epithermal Au–Ag ore formation contains oxidized gold with an oxidation degree of Au (I) or higher on the surface. A thin layer (~15 nm) with high concentrations of Ag and S and an underlying SiO
2
-bearing layer with a thickness of ~30–60 nm play a protective role providing preservation of Ag and Au sulfides in the surface parts of the Au–Ag grains under the oxidizing conditions. S-rich marginal parts of native gold particles may be represented by solid solutions Ag
2–
x
Au
x
S or (with a lack of S) by agglomerates of Ag
n
Au
m
S clusters. The formation of surface zoning in the nanoscale on the surface of native Au is abundant in nature and may be applied in prospecting. |
| doi_str_mv | 10.1134/S1028334X18050185 |
| format | Article |
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2
-bearing layer with a thickness of ~30–60 nm play a protective role providing preservation of Ag and Au sulfides in the surface parts of the Au–Ag grains under the oxidizing conditions. S-rich marginal parts of native gold particles may be represented by solid solutions Ag
2–
x
Au
x
S or (with a lack of S) by agglomerates of Ag
n
Au
m
S clusters. The formation of surface zoning in the nanoscale on the surface of native Au is abundant in nature and may be applied in prospecting.</description><identifier>ISSN: 1028-334X</identifier><identifier>EISSN: 1531-8354</identifier><identifier>DOI: 10.1134/S1028334X18050185</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Agglomerates ; Analytical methods ; Earth and Environmental Science ; Earth Sciences ; Exploration ; Geochemistry ; Gold ; Oxidation ; Preservation ; Silica ; Silicon dioxide ; Silver ; Solid solutions ; Solutions ; Spectroscopy ; Sulfides ; Thickness</subject><ispartof>Doklady earth sciences, 2018-05, Vol.480 (1), p.624-630</ispartof><rights>Pleiades Publishing, Ltd. 2018</rights><rights>COPYRIGHT 2018 Springer</rights><rights>Doklady Earth Sciences is a copyright of Springer, (2018). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a378t-87970936197a25b68347e3ea5eabc1be38cbf99b883d23201d50afe47c0c404a3</citedby><cites>FETCH-LOGICAL-a378t-87970936197a25b68347e3ea5eabc1be38cbf99b883d23201d50afe47c0c404a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S1028334X18050185$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S1028334X18050185$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27923,27924,41487,42556,51318</link.rule.ids></links><search><creatorcontrib>Tauson, V. L.</creatorcontrib><creatorcontrib>Kravtsova, R. G.</creatorcontrib><creatorcontrib>Lipko, S. V.</creatorcontrib><creatorcontrib>Makshakov, A. S.</creatorcontrib><creatorcontrib>Arsentev, K. Yu</creatorcontrib><title>Surface Typochemistry of Native Gold</title><title>Doklady earth sciences</title><addtitle>Dokl. Earth Sc</addtitle><description>Using the methods of electron spectroscopy of the surface and SEM–EDS, it is shown that native gold of the deposit related to the epithermal Au–Ag ore formation contains oxidized gold with an oxidation degree of Au (I) or higher on the surface. A thin layer (~15 nm) with high concentrations of Ag and S and an underlying SiO
2
-bearing layer with a thickness of ~30–60 nm play a protective role providing preservation of Ag and Au sulfides in the surface parts of the Au–Ag grains under the oxidizing conditions. S-rich marginal parts of native gold particles may be represented by solid solutions Ag
2–
x
Au
x
S or (with a lack of S) by agglomerates of Ag
n
Au
m
S clusters. The formation of surface zoning in the nanoscale on the surface of native Au is abundant in nature and may be applied in prospecting.</description><subject>Agglomerates</subject><subject>Analytical methods</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Exploration</subject><subject>Geochemistry</subject><subject>Gold</subject><subject>Oxidation</subject><subject>Preservation</subject><subject>Silica</subject><subject>Silicon dioxide</subject><subject>Silver</subject><subject>Solid solutions</subject><subject>Solutions</subject><subject>Spectroscopy</subject><subject>Sulfides</subject><subject>Thickness</subject><issn>1028-334X</issn><issn>1531-8354</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kE1LAzEQhoMoWKs_wNuCXrfO5KObHEvRKhQ9tIK3JZtN6pZ2U5Ot0H_flBU8iMxhhpn3mXkZQm4RRoiMPywQqGSMf6AEASjFGRmgYJhLJvh5qtM4P80vyVWMawDOuVADcr_YB6eNzZaHnTefdtvELhwy77JX3TXfNpv5TX1NLpzeRHvzk4fk_elxOX3O52-zl-lknmtWyC6XhSpAsTGqQlNRjSXjhWVWC6srg5Vl0lROqUpKVlNGAWsB2lleGDAcuGZDctfv3QX_tbexK9d-H9p0sqQg-BiooJhUo1610htbNq3zXdAmRZ3cG99a16T-RHBeICqQCcAeMMHHGKwrd6HZ6nAoEcrT98o_30sM7ZmYtO3Khl8r_0NHa7lujg</recordid><startdate>20180501</startdate><enddate>20180501</enddate><creator>Tauson, V. 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Yu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a378t-87970936197a25b68347e3ea5eabc1be38cbf99b883d23201d50afe47c0c404a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Agglomerates</topic><topic>Analytical methods</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Exploration</topic><topic>Geochemistry</topic><topic>Gold</topic><topic>Oxidation</topic><topic>Preservation</topic><topic>Silica</topic><topic>Silicon dioxide</topic><topic>Silver</topic><topic>Solid solutions</topic><topic>Solutions</topic><topic>Spectroscopy</topic><topic>Sulfides</topic><topic>Thickness</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tauson, V. L.</creatorcontrib><creatorcontrib>Kravtsova, R. G.</creatorcontrib><creatorcontrib>Lipko, S. V.</creatorcontrib><creatorcontrib>Makshakov, A. 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L.</au><au>Kravtsova, R. G.</au><au>Lipko, S. V.</au><au>Makshakov, A. S.</au><au>Arsentev, K. Yu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Surface Typochemistry of Native Gold</atitle><jtitle>Doklady earth sciences</jtitle><stitle>Dokl. Earth Sc</stitle><date>2018-05-01</date><risdate>2018</risdate><volume>480</volume><issue>1</issue><spage>624</spage><epage>630</epage><pages>624-630</pages><issn>1028-334X</issn><eissn>1531-8354</eissn><abstract>Using the methods of electron spectroscopy of the surface and SEM–EDS, it is shown that native gold of the deposit related to the epithermal Au–Ag ore formation contains oxidized gold with an oxidation degree of Au (I) or higher on the surface. A thin layer (~15 nm) with high concentrations of Ag and S and an underlying SiO
2
-bearing layer with a thickness of ~30–60 nm play a protective role providing preservation of Ag and Au sulfides in the surface parts of the Au–Ag grains under the oxidizing conditions. S-rich marginal parts of native gold particles may be represented by solid solutions Ag
2–
x
Au
x
S or (with a lack of S) by agglomerates of Ag
n
Au
m
S clusters. The formation of surface zoning in the nanoscale on the surface of native Au is abundant in nature and may be applied in prospecting.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1028334X18050185</doi><tpages>7</tpages></addata></record> |
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| subjects | Agglomerates Analytical methods Earth and Environmental Science Earth Sciences Exploration Geochemistry Gold Oxidation Preservation Silica Silicon dioxide Silver Solid solutions Solutions Spectroscopy Sulfides Thickness |
| title | Surface Typochemistry of Native Gold |
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