Low-Ti iron oxide deposits in the Emeishan large igneous province related to low-Ti basalts and gabbroic intrusions
The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Liu, Wenhao [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015transfer abstract |
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| Umfang: |
18 |
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| Übergeordnetes Werk: |
Enthalten in: Corrigendum to “Three-dimensional wake structures controlled by the flow issuing from a horizontal hole in a wall-mounted short cylinder” [Ocean. Eng. 240 (November 2021) 109938] - Rinoshika, Hiroka ELSEVIER, 2021, journal for comprehensive studies of ore genesis and ore exploration, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:65 ; year:2015 ; pages:180-197 ; extent:18 |
| Links: |
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| DOI / URN: |
10.1016/j.oregeorev.2014.08.015 |
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| Katalog-ID: |
ELV023386223 |
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| 520 | |a The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. | ||
| 520 | |a The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. | ||
| 700 | 1 | |a Zhang, Jun |4 oth | |
| 700 | 1 | |a Sun, Teng |4 oth | |
| 700 | 1 | |a Zhou, Li |4 oth | |
| 700 | 1 | |a Liu, Anlu |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Rinoshika, Hiroka ELSEVIER |t Corrigendum to “Three-dimensional wake structures controlled by the flow issuing from a horizontal hole in a wall-mounted short cylinder” [Ocean. Eng. 240 (November 2021) 109938] |d 2021 |d journal for comprehensive studies of ore genesis and ore exploration |g Amsterdam [u.a.] |w (DE-627)ELV009615857 |
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10.1016/j.oregeorev.2014.08.015 doi GBVA2015006000019.pica (DE-627)ELV023386223 (ELSEVIER)S0169-1368(14)00227-3 DE-627 ger DE-627 rakwb eng 550 550 DE-600 690 VZ 50.92 bkl Liu, Wenhao verfasserin aut Low-Ti iron oxide deposits in the Emeishan large igneous province related to low-Ti basalts and gabbroic intrusions 2015transfer abstract 18 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. Zhang, Jun oth Sun, Teng oth Zhou, Li oth Liu, Anlu oth Enthalten in Elsevier Rinoshika, Hiroka ELSEVIER Corrigendum to “Three-dimensional wake structures controlled by the flow issuing from a horizontal hole in a wall-mounted short cylinder” [Ocean. Eng. 240 (November 2021) 109938] 2021 journal for comprehensive studies of ore genesis and ore exploration Amsterdam [u.a.] (DE-627)ELV009615857 volume:65 year:2015 pages:180-197 extent:18 https://doi.org/10.1016/j.oregeorev.2014.08.015 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 65 2015 180-197 18 045F 550 |
| spelling |
10.1016/j.oregeorev.2014.08.015 doi GBVA2015006000019.pica (DE-627)ELV023386223 (ELSEVIER)S0169-1368(14)00227-3 DE-627 ger DE-627 rakwb eng 550 550 DE-600 690 VZ 50.92 bkl Liu, Wenhao verfasserin aut Low-Ti iron oxide deposits in the Emeishan large igneous province related to low-Ti basalts and gabbroic intrusions 2015transfer abstract 18 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. Zhang, Jun oth Sun, Teng oth Zhou, Li oth Liu, Anlu oth Enthalten in Elsevier Rinoshika, Hiroka ELSEVIER Corrigendum to “Three-dimensional wake structures controlled by the flow issuing from a horizontal hole in a wall-mounted short cylinder” [Ocean. Eng. 240 (November 2021) 109938] 2021 journal for comprehensive studies of ore genesis and ore exploration Amsterdam [u.a.] (DE-627)ELV009615857 volume:65 year:2015 pages:180-197 extent:18 https://doi.org/10.1016/j.oregeorev.2014.08.015 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 65 2015 180-197 18 045F 550 |
| allfields_unstemmed |
10.1016/j.oregeorev.2014.08.015 doi GBVA2015006000019.pica (DE-627)ELV023386223 (ELSEVIER)S0169-1368(14)00227-3 DE-627 ger DE-627 rakwb eng 550 550 DE-600 690 VZ 50.92 bkl Liu, Wenhao verfasserin aut Low-Ti iron oxide deposits in the Emeishan large igneous province related to low-Ti basalts and gabbroic intrusions 2015transfer abstract 18 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. Zhang, Jun oth Sun, Teng oth Zhou, Li oth Liu, Anlu oth Enthalten in Elsevier Rinoshika, Hiroka ELSEVIER Corrigendum to “Three-dimensional wake structures controlled by the flow issuing from a horizontal hole in a wall-mounted short cylinder” [Ocean. Eng. 240 (November 2021) 109938] 2021 journal for comprehensive studies of ore genesis and ore exploration Amsterdam [u.a.] (DE-627)ELV009615857 volume:65 year:2015 pages:180-197 extent:18 https://doi.org/10.1016/j.oregeorev.2014.08.015 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 65 2015 180-197 18 045F 550 |
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10.1016/j.oregeorev.2014.08.015 doi GBVA2015006000019.pica (DE-627)ELV023386223 (ELSEVIER)S0169-1368(14)00227-3 DE-627 ger DE-627 rakwb eng 550 550 DE-600 690 VZ 50.92 bkl Liu, Wenhao verfasserin aut Low-Ti iron oxide deposits in the Emeishan large igneous province related to low-Ti basalts and gabbroic intrusions 2015transfer abstract 18 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. Zhang, Jun oth Sun, Teng oth Zhou, Li oth Liu, Anlu oth Enthalten in Elsevier Rinoshika, Hiroka ELSEVIER Corrigendum to “Three-dimensional wake structures controlled by the flow issuing from a horizontal hole in a wall-mounted short cylinder” [Ocean. Eng. 240 (November 2021) 109938] 2021 journal for comprehensive studies of ore genesis and ore exploration Amsterdam [u.a.] (DE-627)ELV009615857 volume:65 year:2015 pages:180-197 extent:18 https://doi.org/10.1016/j.oregeorev.2014.08.015 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 65 2015 180-197 18 045F 550 |
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10.1016/j.oregeorev.2014.08.015 doi GBVA2015006000019.pica (DE-627)ELV023386223 (ELSEVIER)S0169-1368(14)00227-3 DE-627 ger DE-627 rakwb eng 550 550 DE-600 690 VZ 50.92 bkl Liu, Wenhao verfasserin aut Low-Ti iron oxide deposits in the Emeishan large igneous province related to low-Ti basalts and gabbroic intrusions 2015transfer abstract 18 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. Zhang, Jun oth Sun, Teng oth Zhou, Li oth Liu, Anlu oth Enthalten in Elsevier Rinoshika, Hiroka ELSEVIER Corrigendum to “Three-dimensional wake structures controlled by the flow issuing from a horizontal hole in a wall-mounted short cylinder” [Ocean. Eng. 240 (November 2021) 109938] 2021 journal for comprehensive studies of ore genesis and ore exploration Amsterdam [u.a.] (DE-627)ELV009615857 volume:65 year:2015 pages:180-197 extent:18 https://doi.org/10.1016/j.oregeorev.2014.08.015 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 65 2015 180-197 18 045F 550 |
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Enthalten in Corrigendum to “Three-dimensional wake structures controlled by the flow issuing from a horizontal hole in a wall-mounted short cylinder” [Ocean. Eng. 240 (November 2021) 109938] Amsterdam [u.a.] volume:65 year:2015 pages:180-197 extent:18 |
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Low-Ti iron oxide deposits in the Emeishan large igneous province related to low-Ti basalts and gabbroic intrusions |
| abstract |
The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. |
| abstractGer |
The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. |
| abstract_unstemmed |
The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP. |
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| title_short |
Low-Ti iron oxide deposits in the Emeishan large igneous province related to low-Ti basalts and gabbroic intrusions |
| url |
https://doi.org/10.1016/j.oregeorev.2014.08.015 |
| remote_bool |
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| author2 |
Zhang, Jun Sun, Teng Zhou, Li Liu, Anlu |
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Zhang, Jun Sun, Teng Zhou, Li Liu, Anlu |
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| doi_str |
10.1016/j.oregeorev.2014.08.015 |
| up_date |
2024-07-06T18:45:11.209Z |
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Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. All of these factors indicate the Pingchuan and Lanzhichang deposits in the Yanyuan region belong to a specific type of low-Ti iron oxide deposits that are related to the low-Ti basalts and gabbroic intrusions in the ELIP.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The Yanyuan region in the Emeishan large igneous province (ELIP) contains some low-Ti iron oxide deposits that are spatially associated with low-Ti basalts and related gabbroic intrusions. The Pingchuan deposit is the largest of this type and the adjacent Lanzhichang deposit is the first stratiform deposit hosted in the Emeishan basalts discovered in 2005. The Pingchuan deposit occurs in veins and is hosted in caldera near the Dabanshan low-Ti gabbroic complex, which is composed of gabbro and gabbronorite that intruded the gabbro. The adjacent Lanzhichang deposit is hosted in the lower-section of the low-Ti Emeishan basalts and geological characteristics obviously indicate a volcanic sedimentary genesis. The magnetite of these two deposits contains minor TiO2 (~0.002%) and V2O3 (~0.027%), and there is no ilmenite in the mineral assemblages. Apatite U–Pb and fission-track (FT) dating of the Pingchuan deposit indicates a U–Pb age of 245±26Ma and FT age of 51.8±4.9Ma. Zircon U–Pb dating of the Dabanshan complex indicates two similar ages of 259.9±1.1Ma and 260.3±1.3Ma within the error range for the gabbro and gabbronorite, respectively. Three U–Pb ages together with geological evidence indicate that the Pingchuan deposit is formed after both the basalts and Dabanshan gabbroic complex. Reported bulk-rock major element data indicate that the basalts and the Dabanshan gabbroic intrusions belong to the low-Ti basalts and associated intrusions. The gabbro has similar chemical composition to the basalt, but the gabbronorite is distinctly different from gabbro and basalt. Using zircon U–Pb ages, we found that the Fe2O3 ⁎ decreased by 4.51% from the gabbro to the gabbronorite within a very short time interval. This sudden drop of Fe2O3 ⁎ was probably caused by immiscibility of the low-Ti basaltic magma, and the isolated low-Ti Fe-rich melts can account for the mineralization of the Lanzhichang and Pingchuan deposits from two ascents. Contribution of phosphorus from the country rocks may have triggered this liquid immiscibility. The Sr–Nd isotope compositions of the basalts and gabbroic intrusions indicate a transition between the igneous rocks related to the Fe–Ti–V oxide deposits and the Cu–Ni–(PGE) sulfide deposits in the ELIP. 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