Geology of the Don Manuel igneous complex, central Chile: implications for igneous processes in porphyry copper systems
The Don Manuel igneous complex and associated porphyry copper mineralization in the Andean Cordillera of central Chile demonstrate similarities between intrusive complexes associated with porphyry copper deposits and arc volcanoes that generate porphyritic volcanics. The Don Manuel igneous complex i...
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| Autor*in: |
Gilmer, Amy K [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2017 |
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| Rechteinformationen: |
Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Geological Society of America bulletin - Boulder, Colo. [u.a.] : Geological Society of America, 1890, 129(2017), 7-8, Seite 920 |
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| Übergeordnetes Werk: |
volume:129 ; year:2017 ; number:7-8 ; pages:920 |
| Links: |
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| DOI / URN: |
10.1130/B31524.1 |
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OLC1996074962 |
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| 245 | 1 | 0 | |a Geology of the Don Manuel igneous complex, central Chile: implications for igneous processes in porphyry copper systems |
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| 520 | |a The Don Manuel igneous complex and associated porphyry copper mineralization in the Andean Cordillera of central Chile demonstrate similarities between intrusive complexes associated with porphyry copper deposits and arc volcanoes that generate porphyritic volcanics. The Don Manuel igneous complex intrusions progressed from quartz monzonite through rhyolite and biotite tonalite to intermediate porphyritic and basaltic andesite dikes, which intrude the older units. Mineralization is associated with the biotite tonalite and intermediate porphyries, which also contain the greatest abundance of mafic enclaves. Zoning patterns within plagioclase phenocrysts suggest that the later intermediate porphyries comprise a hybridized suite formed by magma mixing. New zircon U-Pb ages and whole-rock Ar-Ar ages indicate that the Don Manuel igneous complex was emplaced between ca. 4 and 3.6 Ma. The time scale for the episodic intrusion of the Don Manuel igneous complex units is similar to observed episodicity of eruption and degassing events in active arc volcanoes. Observations from the Don Manuel igneous complex are consistent with the close spatial and temporal association of mineralization with episodic intrusion and interaction between silicic and mafic magmas during emplacement. The observations are also consistent with the hypothesis that mafic magma provides a source of sulfur for porphyry copper deposit formation. | ||
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| 700 | 1 | |a Webb, Adam D |4 oth | |
| 700 | 1 | |a Barfod, Dan N |4 oth | |
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10.1130/B31524.1 doi PQ20170901 (DE-627)OLC1996074962 (DE-599)GBVOLC1996074962 (PRQ)g590-d87f73dcf3e1254853049264646c73f7daa4fb1cf240edfcf46acdc352367b6a0 (KEY)0093391020170000129000700920geologyofthedonmanueligneouscomplexcentralchileimp DE-627 ger DE-627 rakwb eng 550 DNB Gilmer, Amy K verfasserin aut Geology of the Don Manuel igneous complex, central Chile: implications for igneous processes in porphyry copper systems 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The Don Manuel igneous complex and associated porphyry copper mineralization in the Andean Cordillera of central Chile demonstrate similarities between intrusive complexes associated with porphyry copper deposits and arc volcanoes that generate porphyritic volcanics. The Don Manuel igneous complex intrusions progressed from quartz monzonite through rhyolite and biotite tonalite to intermediate porphyritic and basaltic andesite dikes, which intrude the older units. Mineralization is associated with the biotite tonalite and intermediate porphyries, which also contain the greatest abundance of mafic enclaves. Zoning patterns within plagioclase phenocrysts suggest that the later intermediate porphyries comprise a hybridized suite formed by magma mixing. New zircon U-Pb ages and whole-rock Ar-Ar ages indicate that the Don Manuel igneous complex was emplaced between ca. 4 and 3.6 Ma. The time scale for the episodic intrusion of the Don Manuel igneous complex units is similar to observed episodicity of eruption and degassing events in active arc volcanoes. Observations from the Don Manuel igneous complex are consistent with the close spatial and temporal association of mineralization with episodic intrusion and interaction between silicic and mafic magmas during emplacement. The observations are also consistent with the hypothesis that mafic magma provides a source of sulfur for porphyry copper deposit formation. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Natural history Rocks, Igneous Sparks, R.S.J oth Rust, Alison C oth Tapster, Simon oth Webb, Adam D oth Barfod, Dan N oth Enthalten in Geological Society of America bulletin Boulder, Colo. [u.a.] : Geological Society of America, 1890 129(2017), 7-8, Seite 920 (DE-627)129067199 (DE-600)1351-1 (DE-576)014398621 0016-7606 nnns volume:129 year:2017 number:7-8 pages:920 http://dx.doi.org/10.1130/B31524.1 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_188 GBV_ILN_2010 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 AR 129 2017 7-8 920 |
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10.1130/B31524.1 doi PQ20170901 (DE-627)OLC1996074962 (DE-599)GBVOLC1996074962 (PRQ)g590-d87f73dcf3e1254853049264646c73f7daa4fb1cf240edfcf46acdc352367b6a0 (KEY)0093391020170000129000700920geologyofthedonmanueligneouscomplexcentralchileimp DE-627 ger DE-627 rakwb eng 550 DNB Gilmer, Amy K verfasserin aut Geology of the Don Manuel igneous complex, central Chile: implications for igneous processes in porphyry copper systems 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The Don Manuel igneous complex and associated porphyry copper mineralization in the Andean Cordillera of central Chile demonstrate similarities between intrusive complexes associated with porphyry copper deposits and arc volcanoes that generate porphyritic volcanics. The Don Manuel igneous complex intrusions progressed from quartz monzonite through rhyolite and biotite tonalite to intermediate porphyritic and basaltic andesite dikes, which intrude the older units. Mineralization is associated with the biotite tonalite and intermediate porphyries, which also contain the greatest abundance of mafic enclaves. Zoning patterns within plagioclase phenocrysts suggest that the later intermediate porphyries comprise a hybridized suite formed by magma mixing. New zircon U-Pb ages and whole-rock Ar-Ar ages indicate that the Don Manuel igneous complex was emplaced between ca. 4 and 3.6 Ma. The time scale for the episodic intrusion of the Don Manuel igneous complex units is similar to observed episodicity of eruption and degassing events in active arc volcanoes. Observations from the Don Manuel igneous complex are consistent with the close spatial and temporal association of mineralization with episodic intrusion and interaction between silicic and mafic magmas during emplacement. The observations are also consistent with the hypothesis that mafic magma provides a source of sulfur for porphyry copper deposit formation. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Natural history Rocks, Igneous Sparks, R.S.J oth Rust, Alison C oth Tapster, Simon oth Webb, Adam D oth Barfod, Dan N oth Enthalten in Geological Society of America bulletin Boulder, Colo. [u.a.] : Geological Society of America, 1890 129(2017), 7-8, Seite 920 (DE-627)129067199 (DE-600)1351-1 (DE-576)014398621 0016-7606 nnns volume:129 year:2017 number:7-8 pages:920 http://dx.doi.org/10.1130/B31524.1 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_188 GBV_ILN_2010 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 AR 129 2017 7-8 920 |
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10.1130/B31524.1 doi PQ20170901 (DE-627)OLC1996074962 (DE-599)GBVOLC1996074962 (PRQ)g590-d87f73dcf3e1254853049264646c73f7daa4fb1cf240edfcf46acdc352367b6a0 (KEY)0093391020170000129000700920geologyofthedonmanueligneouscomplexcentralchileimp DE-627 ger DE-627 rakwb eng 550 DNB Gilmer, Amy K verfasserin aut Geology of the Don Manuel igneous complex, central Chile: implications for igneous processes in porphyry copper systems 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The Don Manuel igneous complex and associated porphyry copper mineralization in the Andean Cordillera of central Chile demonstrate similarities between intrusive complexes associated with porphyry copper deposits and arc volcanoes that generate porphyritic volcanics. The Don Manuel igneous complex intrusions progressed from quartz monzonite through rhyolite and biotite tonalite to intermediate porphyritic and basaltic andesite dikes, which intrude the older units. Mineralization is associated with the biotite tonalite and intermediate porphyries, which also contain the greatest abundance of mafic enclaves. Zoning patterns within plagioclase phenocrysts suggest that the later intermediate porphyries comprise a hybridized suite formed by magma mixing. New zircon U-Pb ages and whole-rock Ar-Ar ages indicate that the Don Manuel igneous complex was emplaced between ca. 4 and 3.6 Ma. The time scale for the episodic intrusion of the Don Manuel igneous complex units is similar to observed episodicity of eruption and degassing events in active arc volcanoes. Observations from the Don Manuel igneous complex are consistent with the close spatial and temporal association of mineralization with episodic intrusion and interaction between silicic and mafic magmas during emplacement. The observations are also consistent with the hypothesis that mafic magma provides a source of sulfur for porphyry copper deposit formation. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Natural history Rocks, Igneous Sparks, R.S.J oth Rust, Alison C oth Tapster, Simon oth Webb, Adam D oth Barfod, Dan N oth Enthalten in Geological Society of America bulletin Boulder, Colo. [u.a.] : Geological Society of America, 1890 129(2017), 7-8, Seite 920 (DE-627)129067199 (DE-600)1351-1 (DE-576)014398621 0016-7606 nnns volume:129 year:2017 number:7-8 pages:920 http://dx.doi.org/10.1130/B31524.1 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_188 GBV_ILN_2010 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 AR 129 2017 7-8 920 |
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10.1130/B31524.1 doi PQ20170901 (DE-627)OLC1996074962 (DE-599)GBVOLC1996074962 (PRQ)g590-d87f73dcf3e1254853049264646c73f7daa4fb1cf240edfcf46acdc352367b6a0 (KEY)0093391020170000129000700920geologyofthedonmanueligneouscomplexcentralchileimp DE-627 ger DE-627 rakwb eng 550 DNB Gilmer, Amy K verfasserin aut Geology of the Don Manuel igneous complex, central Chile: implications for igneous processes in porphyry copper systems 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The Don Manuel igneous complex and associated porphyry copper mineralization in the Andean Cordillera of central Chile demonstrate similarities between intrusive complexes associated with porphyry copper deposits and arc volcanoes that generate porphyritic volcanics. The Don Manuel igneous complex intrusions progressed from quartz monzonite through rhyolite and biotite tonalite to intermediate porphyritic and basaltic andesite dikes, which intrude the older units. Mineralization is associated with the biotite tonalite and intermediate porphyries, which also contain the greatest abundance of mafic enclaves. Zoning patterns within plagioclase phenocrysts suggest that the later intermediate porphyries comprise a hybridized suite formed by magma mixing. New zircon U-Pb ages and whole-rock Ar-Ar ages indicate that the Don Manuel igneous complex was emplaced between ca. 4 and 3.6 Ma. The time scale for the episodic intrusion of the Don Manuel igneous complex units is similar to observed episodicity of eruption and degassing events in active arc volcanoes. Observations from the Don Manuel igneous complex are consistent with the close spatial and temporal association of mineralization with episodic intrusion and interaction between silicic and mafic magmas during emplacement. The observations are also consistent with the hypothesis that mafic magma provides a source of sulfur for porphyry copper deposit formation. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Natural history Rocks, Igneous Sparks, R.S.J oth Rust, Alison C oth Tapster, Simon oth Webb, Adam D oth Barfod, Dan N oth Enthalten in Geological Society of America bulletin Boulder, Colo. [u.a.] : Geological Society of America, 1890 129(2017), 7-8, Seite 920 (DE-627)129067199 (DE-600)1351-1 (DE-576)014398621 0016-7606 nnns volume:129 year:2017 number:7-8 pages:920 http://dx.doi.org/10.1130/B31524.1 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_188 GBV_ILN_2010 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 AR 129 2017 7-8 920 |
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10.1130/B31524.1 doi PQ20170901 (DE-627)OLC1996074962 (DE-599)GBVOLC1996074962 (PRQ)g590-d87f73dcf3e1254853049264646c73f7daa4fb1cf240edfcf46acdc352367b6a0 (KEY)0093391020170000129000700920geologyofthedonmanueligneouscomplexcentralchileimp DE-627 ger DE-627 rakwb eng 550 DNB Gilmer, Amy K verfasserin aut Geology of the Don Manuel igneous complex, central Chile: implications for igneous processes in porphyry copper systems 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The Don Manuel igneous complex and associated porphyry copper mineralization in the Andean Cordillera of central Chile demonstrate similarities between intrusive complexes associated with porphyry copper deposits and arc volcanoes that generate porphyritic volcanics. The Don Manuel igneous complex intrusions progressed from quartz monzonite through rhyolite and biotite tonalite to intermediate porphyritic and basaltic andesite dikes, which intrude the older units. Mineralization is associated with the biotite tonalite and intermediate porphyries, which also contain the greatest abundance of mafic enclaves. Zoning patterns within plagioclase phenocrysts suggest that the later intermediate porphyries comprise a hybridized suite formed by magma mixing. New zircon U-Pb ages and whole-rock Ar-Ar ages indicate that the Don Manuel igneous complex was emplaced between ca. 4 and 3.6 Ma. The time scale for the episodic intrusion of the Don Manuel igneous complex units is similar to observed episodicity of eruption and degassing events in active arc volcanoes. Observations from the Don Manuel igneous complex are consistent with the close spatial and temporal association of mineralization with episodic intrusion and interaction between silicic and mafic magmas during emplacement. The observations are also consistent with the hypothesis that mafic magma provides a source of sulfur for porphyry copper deposit formation. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Natural history Rocks, Igneous Sparks, R.S.J oth Rust, Alison C oth Tapster, Simon oth Webb, Adam D oth Barfod, Dan N oth Enthalten in Geological Society of America bulletin Boulder, Colo. [u.a.] : Geological Society of America, 1890 129(2017), 7-8, Seite 920 (DE-627)129067199 (DE-600)1351-1 (DE-576)014398621 0016-7606 nnns volume:129 year:2017 number:7-8 pages:920 http://dx.doi.org/10.1130/B31524.1 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_188 GBV_ILN_2010 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 AR 129 2017 7-8 920 |
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Geology of the Don Manuel igneous complex, central Chile: implications for igneous processes in porphyry copper systems |
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Geology of the Don Manuel igneous complex, central Chile: implications for igneous processes in porphyry copper systems |
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geology of the don manuel igneous complex, central chile: implications for igneous processes in porphyry copper systems |
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Geology of the Don Manuel igneous complex, central Chile: implications for igneous processes in porphyry copper systems |
| abstract |
The Don Manuel igneous complex and associated porphyry copper mineralization in the Andean Cordillera of central Chile demonstrate similarities between intrusive complexes associated with porphyry copper deposits and arc volcanoes that generate porphyritic volcanics. The Don Manuel igneous complex intrusions progressed from quartz monzonite through rhyolite and biotite tonalite to intermediate porphyritic and basaltic andesite dikes, which intrude the older units. Mineralization is associated with the biotite tonalite and intermediate porphyries, which also contain the greatest abundance of mafic enclaves. Zoning patterns within plagioclase phenocrysts suggest that the later intermediate porphyries comprise a hybridized suite formed by magma mixing. New zircon U-Pb ages and whole-rock Ar-Ar ages indicate that the Don Manuel igneous complex was emplaced between ca. 4 and 3.6 Ma. The time scale for the episodic intrusion of the Don Manuel igneous complex units is similar to observed episodicity of eruption and degassing events in active arc volcanoes. Observations from the Don Manuel igneous complex are consistent with the close spatial and temporal association of mineralization with episodic intrusion and interaction between silicic and mafic magmas during emplacement. The observations are also consistent with the hypothesis that mafic magma provides a source of sulfur for porphyry copper deposit formation. |
| abstractGer |
The Don Manuel igneous complex and associated porphyry copper mineralization in the Andean Cordillera of central Chile demonstrate similarities between intrusive complexes associated with porphyry copper deposits and arc volcanoes that generate porphyritic volcanics. The Don Manuel igneous complex intrusions progressed from quartz monzonite through rhyolite and biotite tonalite to intermediate porphyritic and basaltic andesite dikes, which intrude the older units. Mineralization is associated with the biotite tonalite and intermediate porphyries, which also contain the greatest abundance of mafic enclaves. Zoning patterns within plagioclase phenocrysts suggest that the later intermediate porphyries comprise a hybridized suite formed by magma mixing. New zircon U-Pb ages and whole-rock Ar-Ar ages indicate that the Don Manuel igneous complex was emplaced between ca. 4 and 3.6 Ma. The time scale for the episodic intrusion of the Don Manuel igneous complex units is similar to observed episodicity of eruption and degassing events in active arc volcanoes. Observations from the Don Manuel igneous complex are consistent with the close spatial and temporal association of mineralization with episodic intrusion and interaction between silicic and mafic magmas during emplacement. The observations are also consistent with the hypothesis that mafic magma provides a source of sulfur for porphyry copper deposit formation. |
| abstract_unstemmed |
The Don Manuel igneous complex and associated porphyry copper mineralization in the Andean Cordillera of central Chile demonstrate similarities between intrusive complexes associated with porphyry copper deposits and arc volcanoes that generate porphyritic volcanics. The Don Manuel igneous complex intrusions progressed from quartz monzonite through rhyolite and biotite tonalite to intermediate porphyritic and basaltic andesite dikes, which intrude the older units. Mineralization is associated with the biotite tonalite and intermediate porphyries, which also contain the greatest abundance of mafic enclaves. Zoning patterns within plagioclase phenocrysts suggest that the later intermediate porphyries comprise a hybridized suite formed by magma mixing. New zircon U-Pb ages and whole-rock Ar-Ar ages indicate that the Don Manuel igneous complex was emplaced between ca. 4 and 3.6 Ma. The time scale for the episodic intrusion of the Don Manuel igneous complex units is similar to observed episodicity of eruption and degassing events in active arc volcanoes. Observations from the Don Manuel igneous complex are consistent with the close spatial and temporal association of mineralization with episodic intrusion and interaction between silicic and mafic magmas during emplacement. The observations are also consistent with the hypothesis that mafic magma provides a source of sulfur for porphyry copper deposit formation. |
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Geology of the Don Manuel igneous complex, central Chile: implications for igneous processes in porphyry copper systems |
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