Effect of Terrigenous Sediment Addition on the Generation of Arc Silicic Magma: Constraints From the Comparative Partial Melting Experiment at 1.5 GPa
To assess the effects of sediment addition on the partial melting of subducted oceanic crust and generation of arc silicic magma, a series of comparative partial melting experiments on a garnet plagioamphibolite and a 90 wt% garnet plagioamphibolite + 10 wt% plagioclase slate mixture at 850–1,000°C/...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-03-01
|
| Series: | Frontiers in Earth Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.851236/full |
| _version_ | 1818914157817233408 |
|---|---|
| author | Chunjuan Zang Chunjuan Zang Chunjuan Zang Mingliang Wang Mingliang Wang Mingliang Wang |
| author_facet | Chunjuan Zang Chunjuan Zang Chunjuan Zang Mingliang Wang Mingliang Wang Mingliang Wang |
| author_sort | Chunjuan Zang |
| collection | DOAJ |
| description | To assess the effects of sediment addition on the partial melting of subducted oceanic crust and generation of arc silicic magma, a series of comparative partial melting experiments on a garnet plagioamphibolite and a 90 wt% garnet plagioamphibolite + 10 wt% plagioclase slate mixture at 850–1,000°C/1.5 GPa were conducted on a Piston-cylinder apparatus. In the experimental products, partial melt coexists with amphibole + plagioclase + garnet + clinopyroxene at 850–950°C and plagioclase + garnet + clinopyroxene at 1000°C. Compared with pure garnet plagioamphibolite, partial melting of mixture get a higher melting percentage and generates the silicic melt with geochemical characteristics of higher Na2O/K2O and lower Al2O3 in major element and high Rb content in trace element at over 950°C. This result indicates that silicic arc magma may generate from partial melting of metamorphic subducted oceanic crust with sediments thereon, sediment addition contributes to their chemical component and generation dynamic process. |
| first_indexed | 2024-12-19T23:41:56Z |
| format | Article |
| id | doaj.art-aca29251a49048b28f811afe55ad6fe1 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-12-19T23:41:56Z |
| publishDate | 2022-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-aca29251a49048b28f811afe55ad6fe12022-12-21T20:01:23ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632022-03-011010.3389/feart.2022.851236851236Effect of Terrigenous Sediment Addition on the Generation of Arc Silicic Magma: Constraints From the Comparative Partial Melting Experiment at 1.5 GPaChunjuan Zang0Chunjuan Zang1Chunjuan Zang2Mingliang Wang3Mingliang Wang4Mingliang Wang5School of Resource and Civil Engineering, Suzhou University, Suzhou, ChinaNational Engineering Research Centre of Coal Mine Water Hazard Controlling, Suzhou, ChinaKey Laboratory of Mine Water Resource Utilization of Anhui Higher Education Institutes, Suzhou University, Suzhou, ChinaSchool of Resource and Civil Engineering, Suzhou University, Suzhou, ChinaNational Engineering Research Centre of Coal Mine Water Hazard Controlling, Suzhou, ChinaKey Laboratory of Mine Water Resource Utilization of Anhui Higher Education Institutes, Suzhou University, Suzhou, ChinaTo assess the effects of sediment addition on the partial melting of subducted oceanic crust and generation of arc silicic magma, a series of comparative partial melting experiments on a garnet plagioamphibolite and a 90 wt% garnet plagioamphibolite + 10 wt% plagioclase slate mixture at 850–1,000°C/1.5 GPa were conducted on a Piston-cylinder apparatus. In the experimental products, partial melt coexists with amphibole + plagioclase + garnet + clinopyroxene at 850–950°C and plagioclase + garnet + clinopyroxene at 1000°C. Compared with pure garnet plagioamphibolite, partial melting of mixture get a higher melting percentage and generates the silicic melt with geochemical characteristics of higher Na2O/K2O and lower Al2O3 in major element and high Rb content in trace element at over 950°C. This result indicates that silicic arc magma may generate from partial melting of metamorphic subducted oceanic crust with sediments thereon, sediment addition contributes to their chemical component and generation dynamic process.https://www.frontiersin.org/articles/10.3389/feart.2022.851236/fullarc silicic magmapartial meltingsubducted oceanic crustsedimentexperimental petrology |
| spellingShingle | Chunjuan Zang Chunjuan Zang Chunjuan Zang Mingliang Wang Mingliang Wang Mingliang Wang Effect of Terrigenous Sediment Addition on the Generation of Arc Silicic Magma: Constraints From the Comparative Partial Melting Experiment at 1.5 GPa Frontiers in Earth Science arc silicic magma partial melting subducted oceanic crust sediment experimental petrology |
| title | Effect of Terrigenous Sediment Addition on the Generation of Arc Silicic Magma: Constraints From the Comparative Partial Melting Experiment at 1.5 GPa |
| title_full | Effect of Terrigenous Sediment Addition on the Generation of Arc Silicic Magma: Constraints From the Comparative Partial Melting Experiment at 1.5 GPa |
| title_fullStr | Effect of Terrigenous Sediment Addition on the Generation of Arc Silicic Magma: Constraints From the Comparative Partial Melting Experiment at 1.5 GPa |
| title_full_unstemmed | Effect of Terrigenous Sediment Addition on the Generation of Arc Silicic Magma: Constraints From the Comparative Partial Melting Experiment at 1.5 GPa |
| title_short | Effect of Terrigenous Sediment Addition on the Generation of Arc Silicic Magma: Constraints From the Comparative Partial Melting Experiment at 1.5 GPa |
| title_sort | effect of terrigenous sediment addition on the generation of arc silicic magma constraints from the comparative partial melting experiment at 1 5 gpa |
| topic | arc silicic magma partial melting subducted oceanic crust sediment experimental petrology |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.851236/full |
| work_keys_str_mv | AT chunjuanzang effectofterrigenoussedimentadditiononthegenerationofarcsilicicmagmaconstraintsfromthecomparativepartialmeltingexperimentat15gpa AT chunjuanzang effectofterrigenoussedimentadditiononthegenerationofarcsilicicmagmaconstraintsfromthecomparativepartialmeltingexperimentat15gpa AT chunjuanzang effectofterrigenoussedimentadditiononthegenerationofarcsilicicmagmaconstraintsfromthecomparativepartialmeltingexperimentat15gpa AT mingliangwang effectofterrigenoussedimentadditiononthegenerationofarcsilicicmagmaconstraintsfromthecomparativepartialmeltingexperimentat15gpa AT mingliangwang effectofterrigenoussedimentadditiononthegenerationofarcsilicicmagmaconstraintsfromthecomparativepartialmeltingexperimentat15gpa AT mingliangwang effectofterrigenoussedimentadditiononthegenerationofarcsilicicmagmaconstraintsfromthecomparativepartialmeltingexperimentat15gpa |