Global Sn Isotope Compositions of Cassiterite Identify the Magmatic–Hydrothermal Evolution of Tin Ore Systems
Published Sn isotope data along with 150 new analyses of cassiterite and four granite analyses constrain two major tin isotope fractionation steps associated with (1) separation of tin from the magma/orthomagmatic transitional environment and (2) hydrothermal activity. A distinct Sn isotope differen...
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2025-01-01
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| author | Ryan Mathur Wayne Powell Junming Yao Frederico Guimaraes Yanbo Cheng Linda Godfrey Fernando Tornos David Killick Jay Stephens Jingwen Mao Mingguang Sun Bernd Lehmann |
| author_facet | Ryan Mathur Wayne Powell Junming Yao Frederico Guimaraes Yanbo Cheng Linda Godfrey Fernando Tornos David Killick Jay Stephens Jingwen Mao Mingguang Sun Bernd Lehmann |
| author_sort | Ryan Mathur |
| collection | DOAJ |
| description | Published Sn isotope data along with 150 new analyses of cassiterite and four granite analyses constrain two major tin isotope fractionation steps associated with (1) separation of tin from the magma/orthomagmatic transitional environment and (2) hydrothermal activity. A distinct Sn isotope difference across deposit type, geological host rocks, and time of ore deposit formation demonstrates that the difference in the mean δ<sup>124</sup>Sn value represents the operation of a unified process. The lower Sn isotope values present in both residual igneous rocks and pegmatite suggest that heavier Sn isotopes were extracted from the system during orthomagmatic fluid separation, likely by F ligands with Sn. Rayleigh distillation models this first F ligand-induced fractionation. The subsequent development of the hydrothermal system is characterized by heavier Sn isotope composition proximal to the intrusion, which persists in spite of Sn isotope fractionating towards isotopically lighter Sn during hydrothermal evolution. |
| format | Article |
| id | doaj-art-da52713d374d4a429b496780718f434c |
| institution | Kabale University |
| issn | 2076-3263 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Geosciences |
| spelling | doaj-art-da52713d374d4a429b496780718f434c2025-01-24T13:34:14ZengMDPI AGGeosciences2076-32632025-01-011512810.3390/geosciences15010028Global Sn Isotope Compositions of Cassiterite Identify the Magmatic–Hydrothermal Evolution of Tin Ore SystemsRyan Mathur0Wayne Powell1Junming Yao2Frederico Guimaraes3Yanbo Cheng4Linda Godfrey5Fernando Tornos6David Killick7Jay Stephens8Jingwen Mao9Mingguang Sun10Bernd Lehmann11Geology Department, Juniata College, Huntingdon, PA 16652, USAEarth and Environmental Sciences, Brooklyn College and the CUNY Graduate Center, Brooklyn, NY 11210, USAGuangzhou Institute of Geochemistry, Guangzhou 510640, ChinaCenter for Development of Nuclear Technology, Belo Horizonte 31270-901, MG, BrazilGeoscience Australia, Canberra 2609, AustraliaDepartment of Earth and Planetary Sciences, Rutgers University, Piscataway, NJ 08854, USAInstituto de Geociencias, Consejo Superior de Investigciones Cientificas, 28040 Madrid, SpainDepartment of Anthropology, University of Arizona, Tucson, AZ 85721, USAArchaeometry Laboratory, Research Reactor Center, University of Missouri, Columbia, MO 65211, USAMinistry of Natural Resources Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, ChinaInstitute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, ChinaMineral Resources, Technical University of Clausthal, 38678 Clausthal-Zellerfeld, GermanyPublished Sn isotope data along with 150 new analyses of cassiterite and four granite analyses constrain two major tin isotope fractionation steps associated with (1) separation of tin from the magma/orthomagmatic transitional environment and (2) hydrothermal activity. A distinct Sn isotope difference across deposit type, geological host rocks, and time of ore deposit formation demonstrates that the difference in the mean δ<sup>124</sup>Sn value represents the operation of a unified process. The lower Sn isotope values present in both residual igneous rocks and pegmatite suggest that heavier Sn isotopes were extracted from the system during orthomagmatic fluid separation, likely by F ligands with Sn. Rayleigh distillation models this first F ligand-induced fractionation. The subsequent development of the hydrothermal system is characterized by heavier Sn isotope composition proximal to the intrusion, which persists in spite of Sn isotope fractionating towards isotopically lighter Sn during hydrothermal evolution.https://www.mdpi.com/2076-3263/15/1/28Sn isotopeTin depositsmetal isotopes |
| spellingShingle | Ryan Mathur Wayne Powell Junming Yao Frederico Guimaraes Yanbo Cheng Linda Godfrey Fernando Tornos David Killick Jay Stephens Jingwen Mao Mingguang Sun Bernd Lehmann Global Sn Isotope Compositions of Cassiterite Identify the Magmatic–Hydrothermal Evolution of Tin Ore Systems Geosciences Sn isotope Tin deposits metal isotopes |
| title | Global Sn Isotope Compositions of Cassiterite Identify the Magmatic–Hydrothermal Evolution of Tin Ore Systems |
| title_full | Global Sn Isotope Compositions of Cassiterite Identify the Magmatic–Hydrothermal Evolution of Tin Ore Systems |
| title_fullStr | Global Sn Isotope Compositions of Cassiterite Identify the Magmatic–Hydrothermal Evolution of Tin Ore Systems |
| title_full_unstemmed | Global Sn Isotope Compositions of Cassiterite Identify the Magmatic–Hydrothermal Evolution of Tin Ore Systems |
| title_short | Global Sn Isotope Compositions of Cassiterite Identify the Magmatic–Hydrothermal Evolution of Tin Ore Systems |
| title_sort | global sn isotope compositions of cassiterite identify the magmatic hydrothermal evolution of tin ore systems |
| topic | Sn isotope Tin deposits metal isotopes |
| url | https://www.mdpi.com/2076-3263/15/1/28 |
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