Magma generation and sulfide saturation of Permian mafic-ultramafic intrusions from the western part of the Northern Tianshan in NW China: implications for Ni-Cu mineralization
Abstract Compared to Permian magmatic Ni-Cu sulfide deposits in the eastern part of the Northern Tianshan, such as Huangshan and Huangshandong, those in the western part (e.g., Baixintan and Lubei) are poorly documented. Zircon ID-TIMS U-Pb age data (279.7 ± 0.2 Ma) of lherzolite and LA-ICPMS U-Pb a...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Deng, Yu-Feng [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019 |
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| Schlagwörter: |
Magmatic Ni-Cu sulfide deposit Baixintan mafic-ultramafic intrusion |
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| Systematik: |
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| Anmerkung: |
© Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
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| Übergeordnetes Werk: |
Enthalten in: Mineralium deposita - Springer Berlin Heidelberg, 1966, 55(2019), 3 vom: 28. Mai, Seite 515-534 |
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| Übergeordnetes Werk: |
volume:55 ; year:2019 ; number:3 ; day:28 ; month:05 ; pages:515-534 |
| Links: |
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| DOI / URN: |
10.1007/s00126-019-00890-8 |
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OLC2058261305 |
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| 520 | |a Abstract Compared to Permian magmatic Ni-Cu sulfide deposits in the eastern part of the Northern Tianshan, such as Huangshan and Huangshandong, those in the western part (e.g., Baixintan and Lubei) are poorly documented. Zircon ID-TIMS U-Pb age data (279.7 ± 0.2 Ma) of lherzolite and LA-ICPMS U-Pb age data (277.8 ± 3.4 Ma) of a hornblende gabbro suggest the Lubei intrusion was emplaced in the Early Permian. The Baixintan and Lubei mafic-ultramafic intrusive rocks are characterized by enrichments of large ion lithophile elements and Th and U relative to the high field strength elements, as well as depletion of Nb and Ta relative to mid-ocean ridge basalt. The (87Sr/86Sr)t (0.70354–0.70713), $ εNd_{(t)} $ (2.80 to + 7.05), and $ εHf_{(t)} $ (2.50–18.4) values for the intrusions indicate that they have assimilated Tianshan basement rocks, whereas the Se/S ratios (181 × $ 10^{−6} $–418 × $ 10^{−6} $) and $ δ^{34} $$ S_{CDT} $ values (− 0.13‰ to 0.90‰) of the sulfides suggest that crustal sulfur has not been incorporated into the magma. The decrease in Pd/Zr with increasing (Th/Nb)PM indicates that sulfide saturation accompanied crustal contamination. The olivine compositions and whole-rock chalcophile elements of the Baixintan and Lubei intrusions imply that the parental magma of the intrusive rocks in the west contains higher chalcophile elements than those in the east, which suggests that the mafic-ultramafic intrusions in the western part of the Northern Tianshan should be regarded as favorable Ni-Cu sulfide exploration targets. | ||
| 650 | 4 | |a Magmatic Ni-Cu sulfide deposit | |
| 650 | 4 | |a Baixintan mafic-ultramafic intrusion | |
| 650 | 4 | |a Lubei mafic-ultramafic intrusion | |
| 650 | 4 | |a Western Northern Tianshan | |
| 650 | 4 | |a Mantle source | |
| 650 | 4 | |a Sulfide saturation | |
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| 700 | 1 | |a Zhou, Taofa |4 aut | |
| 700 | 1 | |a Fu, Bin |4 aut | |
| 700 | 1 | |a Denyszyn, Steven |4 aut | |
| 700 | 1 | |a Zhao, Bingbing |4 aut | |
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10.1007/s00126-019-00890-8 doi (DE-627)OLC2058261305 (DE-He213)s00126-019-00890-8-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 13 ssgn TE 1000 VZ rvk Deng, Yu-Feng verfasserin (orcid)0000-0001-6712-7389 aut Magma generation and sulfide saturation of Permian mafic-ultramafic intrusions from the western part of the Northern Tianshan in NW China: implications for Ni-Cu mineralization 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Compared to Permian magmatic Ni-Cu sulfide deposits in the eastern part of the Northern Tianshan, such as Huangshan and Huangshandong, those in the western part (e.g., Baixintan and Lubei) are poorly documented. Zircon ID-TIMS U-Pb age data (279.7 ± 0.2 Ma) of lherzolite and LA-ICPMS U-Pb age data (277.8 ± 3.4 Ma) of a hornblende gabbro suggest the Lubei intrusion was emplaced in the Early Permian. The Baixintan and Lubei mafic-ultramafic intrusive rocks are characterized by enrichments of large ion lithophile elements and Th and U relative to the high field strength elements, as well as depletion of Nb and Ta relative to mid-ocean ridge basalt. The (87Sr/86Sr)t (0.70354–0.70713), $ εNd_{(t)} $ (2.80 to + 7.05), and $ εHf_{(t)} $ (2.50–18.4) values for the intrusions indicate that they have assimilated Tianshan basement rocks, whereas the Se/S ratios (181 × $ 10^{−6} $–418 × $ 10^{−6} $) and $ δ^{34} $$ S_{CDT} $ values (− 0.13‰ to 0.90‰) of the sulfides suggest that crustal sulfur has not been incorporated into the magma. The decrease in Pd/Zr with increasing (Th/Nb)PM indicates that sulfide saturation accompanied crustal contamination. The olivine compositions and whole-rock chalcophile elements of the Baixintan and Lubei intrusions imply that the parental magma of the intrusive rocks in the west contains higher chalcophile elements than those in the east, which suggests that the mafic-ultramafic intrusions in the western part of the Northern Tianshan should be regarded as favorable Ni-Cu sulfide exploration targets. Magmatic Ni-Cu sulfide deposit Baixintan mafic-ultramafic intrusion Lubei mafic-ultramafic intrusion Western Northern Tianshan Mantle source Sulfide saturation Yuan, Feng aut Hollings, Peter aut Song, Xie-Yan aut Zhou, Taofa aut Fu, Bin aut Denyszyn, Steven aut Zhao, Bingbing aut Enthalten in Mineralium deposita Springer Berlin Heidelberg, 1966 55(2019), 3 vom: 28. Mai, Seite 515-534 (DE-627)12906906X (DE-600)1679-2 (DE-576)01440074X 0026-4598 nnns volume:55 year:2019 number:3 day:28 month:05 pages:515-534 https://doi.org/10.1007/s00126-019-00890-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_30 GBV_ILN_2018 GBV_ILN_2110 GBV_ILN_4277 GBV_ILN_4306 TE 1000 AR 55 2019 3 28 05 515-534 |
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10.1007/s00126-019-00890-8 doi (DE-627)OLC2058261305 (DE-He213)s00126-019-00890-8-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 13 ssgn TE 1000 VZ rvk Deng, Yu-Feng verfasserin (orcid)0000-0001-6712-7389 aut Magma generation and sulfide saturation of Permian mafic-ultramafic intrusions from the western part of the Northern Tianshan in NW China: implications for Ni-Cu mineralization 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Compared to Permian magmatic Ni-Cu sulfide deposits in the eastern part of the Northern Tianshan, such as Huangshan and Huangshandong, those in the western part (e.g., Baixintan and Lubei) are poorly documented. Zircon ID-TIMS U-Pb age data (279.7 ± 0.2 Ma) of lherzolite and LA-ICPMS U-Pb age data (277.8 ± 3.4 Ma) of a hornblende gabbro suggest the Lubei intrusion was emplaced in the Early Permian. The Baixintan and Lubei mafic-ultramafic intrusive rocks are characterized by enrichments of large ion lithophile elements and Th and U relative to the high field strength elements, as well as depletion of Nb and Ta relative to mid-ocean ridge basalt. The (87Sr/86Sr)t (0.70354–0.70713), $ εNd_{(t)} $ (2.80 to + 7.05), and $ εHf_{(t)} $ (2.50–18.4) values for the intrusions indicate that they have assimilated Tianshan basement rocks, whereas the Se/S ratios (181 × $ 10^{−6} $–418 × $ 10^{−6} $) and $ δ^{34} $$ S_{CDT} $ values (− 0.13‰ to 0.90‰) of the sulfides suggest that crustal sulfur has not been incorporated into the magma. The decrease in Pd/Zr with increasing (Th/Nb)PM indicates that sulfide saturation accompanied crustal contamination. The olivine compositions and whole-rock chalcophile elements of the Baixintan and Lubei intrusions imply that the parental magma of the intrusive rocks in the west contains higher chalcophile elements than those in the east, which suggests that the mafic-ultramafic intrusions in the western part of the Northern Tianshan should be regarded as favorable Ni-Cu sulfide exploration targets. Magmatic Ni-Cu sulfide deposit Baixintan mafic-ultramafic intrusion Lubei mafic-ultramafic intrusion Western Northern Tianshan Mantle source Sulfide saturation Yuan, Feng aut Hollings, Peter aut Song, Xie-Yan aut Zhou, Taofa aut Fu, Bin aut Denyszyn, Steven aut Zhao, Bingbing aut Enthalten in Mineralium deposita Springer Berlin Heidelberg, 1966 55(2019), 3 vom: 28. Mai, Seite 515-534 (DE-627)12906906X (DE-600)1679-2 (DE-576)01440074X 0026-4598 nnns volume:55 year:2019 number:3 day:28 month:05 pages:515-534 https://doi.org/10.1007/s00126-019-00890-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_30 GBV_ILN_2018 GBV_ILN_2110 GBV_ILN_4277 GBV_ILN_4306 TE 1000 AR 55 2019 3 28 05 515-534 |
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10.1007/s00126-019-00890-8 doi (DE-627)OLC2058261305 (DE-He213)s00126-019-00890-8-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 13 ssgn TE 1000 VZ rvk Deng, Yu-Feng verfasserin (orcid)0000-0001-6712-7389 aut Magma generation and sulfide saturation of Permian mafic-ultramafic intrusions from the western part of the Northern Tianshan in NW China: implications for Ni-Cu mineralization 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Compared to Permian magmatic Ni-Cu sulfide deposits in the eastern part of the Northern Tianshan, such as Huangshan and Huangshandong, those in the western part (e.g., Baixintan and Lubei) are poorly documented. Zircon ID-TIMS U-Pb age data (279.7 ± 0.2 Ma) of lherzolite and LA-ICPMS U-Pb age data (277.8 ± 3.4 Ma) of a hornblende gabbro suggest the Lubei intrusion was emplaced in the Early Permian. The Baixintan and Lubei mafic-ultramafic intrusive rocks are characterized by enrichments of large ion lithophile elements and Th and U relative to the high field strength elements, as well as depletion of Nb and Ta relative to mid-ocean ridge basalt. The (87Sr/86Sr)t (0.70354–0.70713), $ εNd_{(t)} $ (2.80 to + 7.05), and $ εHf_{(t)} $ (2.50–18.4) values for the intrusions indicate that they have assimilated Tianshan basement rocks, whereas the Se/S ratios (181 × $ 10^{−6} $–418 × $ 10^{−6} $) and $ δ^{34} $$ S_{CDT} $ values (− 0.13‰ to 0.90‰) of the sulfides suggest that crustal sulfur has not been incorporated into the magma. The decrease in Pd/Zr with increasing (Th/Nb)PM indicates that sulfide saturation accompanied crustal contamination. The olivine compositions and whole-rock chalcophile elements of the Baixintan and Lubei intrusions imply that the parental magma of the intrusive rocks in the west contains higher chalcophile elements than those in the east, which suggests that the mafic-ultramafic intrusions in the western part of the Northern Tianshan should be regarded as favorable Ni-Cu sulfide exploration targets. Magmatic Ni-Cu sulfide deposit Baixintan mafic-ultramafic intrusion Lubei mafic-ultramafic intrusion Western Northern Tianshan Mantle source Sulfide saturation Yuan, Feng aut Hollings, Peter aut Song, Xie-Yan aut Zhou, Taofa aut Fu, Bin aut Denyszyn, Steven aut Zhao, Bingbing aut Enthalten in Mineralium deposita Springer Berlin Heidelberg, 1966 55(2019), 3 vom: 28. Mai, Seite 515-534 (DE-627)12906906X (DE-600)1679-2 (DE-576)01440074X 0026-4598 nnns volume:55 year:2019 number:3 day:28 month:05 pages:515-534 https://doi.org/10.1007/s00126-019-00890-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_30 GBV_ILN_2018 GBV_ILN_2110 GBV_ILN_4277 GBV_ILN_4306 TE 1000 AR 55 2019 3 28 05 515-534 |
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10.1007/s00126-019-00890-8 doi (DE-627)OLC2058261305 (DE-He213)s00126-019-00890-8-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 13 ssgn TE 1000 VZ rvk Deng, Yu-Feng verfasserin (orcid)0000-0001-6712-7389 aut Magma generation and sulfide saturation of Permian mafic-ultramafic intrusions from the western part of the Northern Tianshan in NW China: implications for Ni-Cu mineralization 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Compared to Permian magmatic Ni-Cu sulfide deposits in the eastern part of the Northern Tianshan, such as Huangshan and Huangshandong, those in the western part (e.g., Baixintan and Lubei) are poorly documented. Zircon ID-TIMS U-Pb age data (279.7 ± 0.2 Ma) of lherzolite and LA-ICPMS U-Pb age data (277.8 ± 3.4 Ma) of a hornblende gabbro suggest the Lubei intrusion was emplaced in the Early Permian. The Baixintan and Lubei mafic-ultramafic intrusive rocks are characterized by enrichments of large ion lithophile elements and Th and U relative to the high field strength elements, as well as depletion of Nb and Ta relative to mid-ocean ridge basalt. The (87Sr/86Sr)t (0.70354–0.70713), $ εNd_{(t)} $ (2.80 to + 7.05), and $ εHf_{(t)} $ (2.50–18.4) values for the intrusions indicate that they have assimilated Tianshan basement rocks, whereas the Se/S ratios (181 × $ 10^{−6} $–418 × $ 10^{−6} $) and $ δ^{34} $$ S_{CDT} $ values (− 0.13‰ to 0.90‰) of the sulfides suggest that crustal sulfur has not been incorporated into the magma. The decrease in Pd/Zr with increasing (Th/Nb)PM indicates that sulfide saturation accompanied crustal contamination. The olivine compositions and whole-rock chalcophile elements of the Baixintan and Lubei intrusions imply that the parental magma of the intrusive rocks in the west contains higher chalcophile elements than those in the east, which suggests that the mafic-ultramafic intrusions in the western part of the Northern Tianshan should be regarded as favorable Ni-Cu sulfide exploration targets. Magmatic Ni-Cu sulfide deposit Baixintan mafic-ultramafic intrusion Lubei mafic-ultramafic intrusion Western Northern Tianshan Mantle source Sulfide saturation Yuan, Feng aut Hollings, Peter aut Song, Xie-Yan aut Zhou, Taofa aut Fu, Bin aut Denyszyn, Steven aut Zhao, Bingbing aut Enthalten in Mineralium deposita Springer Berlin Heidelberg, 1966 55(2019), 3 vom: 28. Mai, Seite 515-534 (DE-627)12906906X (DE-600)1679-2 (DE-576)01440074X 0026-4598 nnns volume:55 year:2019 number:3 day:28 month:05 pages:515-534 https://doi.org/10.1007/s00126-019-00890-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_30 GBV_ILN_2018 GBV_ILN_2110 GBV_ILN_4277 GBV_ILN_4306 TE 1000 AR 55 2019 3 28 05 515-534 |
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10.1007/s00126-019-00890-8 doi (DE-627)OLC2058261305 (DE-He213)s00126-019-00890-8-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ 13 ssgn TE 1000 VZ rvk Deng, Yu-Feng verfasserin (orcid)0000-0001-6712-7389 aut Magma generation and sulfide saturation of Permian mafic-ultramafic intrusions from the western part of the Northern Tianshan in NW China: implications for Ni-Cu mineralization 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Compared to Permian magmatic Ni-Cu sulfide deposits in the eastern part of the Northern Tianshan, such as Huangshan and Huangshandong, those in the western part (e.g., Baixintan and Lubei) are poorly documented. Zircon ID-TIMS U-Pb age data (279.7 ± 0.2 Ma) of lherzolite and LA-ICPMS U-Pb age data (277.8 ± 3.4 Ma) of a hornblende gabbro suggest the Lubei intrusion was emplaced in the Early Permian. The Baixintan and Lubei mafic-ultramafic intrusive rocks are characterized by enrichments of large ion lithophile elements and Th and U relative to the high field strength elements, as well as depletion of Nb and Ta relative to mid-ocean ridge basalt. The (87Sr/86Sr)t (0.70354–0.70713), $ εNd_{(t)} $ (2.80 to + 7.05), and $ εHf_{(t)} $ (2.50–18.4) values for the intrusions indicate that they have assimilated Tianshan basement rocks, whereas the Se/S ratios (181 × $ 10^{−6} $–418 × $ 10^{−6} $) and $ δ^{34} $$ S_{CDT} $ values (− 0.13‰ to 0.90‰) of the sulfides suggest that crustal sulfur has not been incorporated into the magma. The decrease in Pd/Zr with increasing (Th/Nb)PM indicates that sulfide saturation accompanied crustal contamination. The olivine compositions and whole-rock chalcophile elements of the Baixintan and Lubei intrusions imply that the parental magma of the intrusive rocks in the west contains higher chalcophile elements than those in the east, which suggests that the mafic-ultramafic intrusions in the western part of the Northern Tianshan should be regarded as favorable Ni-Cu sulfide exploration targets. Magmatic Ni-Cu sulfide deposit Baixintan mafic-ultramafic intrusion Lubei mafic-ultramafic intrusion Western Northern Tianshan Mantle source Sulfide saturation Yuan, Feng aut Hollings, Peter aut Song, Xie-Yan aut Zhou, Taofa aut Fu, Bin aut Denyszyn, Steven aut Zhao, Bingbing aut Enthalten in Mineralium deposita Springer Berlin Heidelberg, 1966 55(2019), 3 vom: 28. Mai, Seite 515-534 (DE-627)12906906X (DE-600)1679-2 (DE-576)01440074X 0026-4598 nnns volume:55 year:2019 number:3 day:28 month:05 pages:515-534 https://doi.org/10.1007/s00126-019-00890-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_30 GBV_ILN_2018 GBV_ILN_2110 GBV_ILN_4277 GBV_ILN_4306 TE 1000 AR 55 2019 3 28 05 515-534 |
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magma generation and sulfide saturation of permian mafic-ultramafic intrusions from the western part of the northern tianshan in nw china: implications for ni-cu mineralization |
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Magma generation and sulfide saturation of Permian mafic-ultramafic intrusions from the western part of the Northern Tianshan in NW China: implications for Ni-Cu mineralization |
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Abstract Compared to Permian magmatic Ni-Cu sulfide deposits in the eastern part of the Northern Tianshan, such as Huangshan and Huangshandong, those in the western part (e.g., Baixintan and Lubei) are poorly documented. Zircon ID-TIMS U-Pb age data (279.7 ± 0.2 Ma) of lherzolite and LA-ICPMS U-Pb age data (277.8 ± 3.4 Ma) of a hornblende gabbro suggest the Lubei intrusion was emplaced in the Early Permian. The Baixintan and Lubei mafic-ultramafic intrusive rocks are characterized by enrichments of large ion lithophile elements and Th and U relative to the high field strength elements, as well as depletion of Nb and Ta relative to mid-ocean ridge basalt. The (87Sr/86Sr)t (0.70354–0.70713), $ εNd_{(t)} $ (2.80 to + 7.05), and $ εHf_{(t)} $ (2.50–18.4) values for the intrusions indicate that they have assimilated Tianshan basement rocks, whereas the Se/S ratios (181 × $ 10^{−6} $–418 × $ 10^{−6} $) and $ δ^{34} $$ S_{CDT} $ values (− 0.13‰ to 0.90‰) of the sulfides suggest that crustal sulfur has not been incorporated into the magma. The decrease in Pd/Zr with increasing (Th/Nb)PM indicates that sulfide saturation accompanied crustal contamination. The olivine compositions and whole-rock chalcophile elements of the Baixintan and Lubei intrusions imply that the parental magma of the intrusive rocks in the west contains higher chalcophile elements than those in the east, which suggests that the mafic-ultramafic intrusions in the western part of the Northern Tianshan should be regarded as favorable Ni-Cu sulfide exploration targets. © Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
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Abstract Compared to Permian magmatic Ni-Cu sulfide deposits in the eastern part of the Northern Tianshan, such as Huangshan and Huangshandong, those in the western part (e.g., Baixintan and Lubei) are poorly documented. Zircon ID-TIMS U-Pb age data (279.7 ± 0.2 Ma) of lherzolite and LA-ICPMS U-Pb age data (277.8 ± 3.4 Ma) of a hornblende gabbro suggest the Lubei intrusion was emplaced in the Early Permian. The Baixintan and Lubei mafic-ultramafic intrusive rocks are characterized by enrichments of large ion lithophile elements and Th and U relative to the high field strength elements, as well as depletion of Nb and Ta relative to mid-ocean ridge basalt. The (87Sr/86Sr)t (0.70354–0.70713), $ εNd_{(t)} $ (2.80 to + 7.05), and $ εHf_{(t)} $ (2.50–18.4) values for the intrusions indicate that they have assimilated Tianshan basement rocks, whereas the Se/S ratios (181 × $ 10^{−6} $–418 × $ 10^{−6} $) and $ δ^{34} $$ S_{CDT} $ values (− 0.13‰ to 0.90‰) of the sulfides suggest that crustal sulfur has not been incorporated into the magma. The decrease in Pd/Zr with increasing (Th/Nb)PM indicates that sulfide saturation accompanied crustal contamination. The olivine compositions and whole-rock chalcophile elements of the Baixintan and Lubei intrusions imply that the parental magma of the intrusive rocks in the west contains higher chalcophile elements than those in the east, which suggests that the mafic-ultramafic intrusions in the western part of the Northern Tianshan should be regarded as favorable Ni-Cu sulfide exploration targets. © Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
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Abstract Compared to Permian magmatic Ni-Cu sulfide deposits in the eastern part of the Northern Tianshan, such as Huangshan and Huangshandong, those in the western part (e.g., Baixintan and Lubei) are poorly documented. Zircon ID-TIMS U-Pb age data (279.7 ± 0.2 Ma) of lherzolite and LA-ICPMS U-Pb age data (277.8 ± 3.4 Ma) of a hornblende gabbro suggest the Lubei intrusion was emplaced in the Early Permian. The Baixintan and Lubei mafic-ultramafic intrusive rocks are characterized by enrichments of large ion lithophile elements and Th and U relative to the high field strength elements, as well as depletion of Nb and Ta relative to mid-ocean ridge basalt. The (87Sr/86Sr)t (0.70354–0.70713), $ εNd_{(t)} $ (2.80 to + 7.05), and $ εHf_{(t)} $ (2.50–18.4) values for the intrusions indicate that they have assimilated Tianshan basement rocks, whereas the Se/S ratios (181 × $ 10^{−6} $–418 × $ 10^{−6} $) and $ δ^{34} $$ S_{CDT} $ values (− 0.13‰ to 0.90‰) of the sulfides suggest that crustal sulfur has not been incorporated into the magma. The decrease in Pd/Zr with increasing (Th/Nb)PM indicates that sulfide saturation accompanied crustal contamination. The olivine compositions and whole-rock chalcophile elements of the Baixintan and Lubei intrusions imply that the parental magma of the intrusive rocks in the west contains higher chalcophile elements than those in the east, which suggests that the mafic-ultramafic intrusions in the western part of the Northern Tianshan should be regarded as favorable Ni-Cu sulfide exploration targets. © Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
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Magma generation and sulfide saturation of Permian mafic-ultramafic intrusions from the western part of the Northern Tianshan in NW China: implications for Ni-Cu mineralization |
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Zircon ID-TIMS U-Pb age data (279.7 ± 0.2 Ma) of lherzolite and LA-ICPMS U-Pb age data (277.8 ± 3.4 Ma) of a hornblende gabbro suggest the Lubei intrusion was emplaced in the Early Permian. The Baixintan and Lubei mafic-ultramafic intrusive rocks are characterized by enrichments of large ion lithophile elements and Th and U relative to the high field strength elements, as well as depletion of Nb and Ta relative to mid-ocean ridge basalt. The (87Sr/86Sr)t (0.70354–0.70713), $ εNd_{(t)} $ (2.80 to + 7.05), and $ εHf_{(t)} $ (2.50–18.4) values for the intrusions indicate that they have assimilated Tianshan basement rocks, whereas the Se/S ratios (181 × $ 10^{−6} $–418 × $ 10^{−6} $) and $ δ^{34} $$ S_{CDT} $ values (− 0.13‰ to 0.90‰) of the sulfides suggest that crustal sulfur has not been incorporated into the magma. The decrease in Pd/Zr with increasing (Th/Nb)PM indicates that sulfide saturation accompanied crustal contamination. The olivine compositions and whole-rock chalcophile elements of the Baixintan and Lubei intrusions imply that the parental magma of the intrusive rocks in the west contains higher chalcophile elements than those in the east, which suggests that the mafic-ultramafic intrusions in the western part of the Northern Tianshan should be regarded as favorable Ni-Cu sulfide exploration targets.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Magmatic Ni-Cu sulfide deposit</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Baixintan mafic-ultramafic intrusion</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Lubei mafic-ultramafic intrusion</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Western Northern Tianshan</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Mantle source</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Sulfide saturation</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Yuan, Feng</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Hollings, Peter</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Song, Xie-Yan</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhou, Taofa</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Fu, Bin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Denyszyn, Steven</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhao, Bingbing</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Mineralium deposita</subfield><subfield code="d">Springer Berlin Heidelberg, 1966</subfield><subfield code="g">55(2019), 3 vom: 28. Mai, Seite 515-534</subfield><subfield code="w">(DE-627)12906906X</subfield><subfield code="w">(DE-600)1679-2</subfield><subfield code="w">(DE-576)01440074X</subfield><subfield code="x">0026-4598</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:55</subfield><subfield code="g">year:2019</subfield><subfield code="g">number:3</subfield><subfield code="g">day:28</subfield><subfield code="g">month:05</subfield><subfield code="g">pages:515-534</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">https://doi.org/10.1007/s00126-019-00890-8</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-GEO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-GGO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_30</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2018</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4277</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4306</subfield></datafield><datafield tag="936" ind1="r" ind2="v"><subfield code="a">TE 1000</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">55</subfield><subfield code="j">2019</subfield><subfield code="e">3</subfield><subfield code="b">28</subfield><subfield code="c">05</subfield><subfield code="h">515-534</subfield></datafield></record></collection>
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