Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan

Dolomites of the Maokou Formation in the central Sichuan were mainly developed in the middle-upper part of Member 2 and the lower part of Member 3 of Maokou Formation, it could be divided into fine-to medium-grained calcareous dolomite, fine-to medium-grained dolomite and breccia dolomite according to petrology characteristic, and the latter two were dominant. Through contrast of geochemical characteristic between micritic limestone and different types of dolomite, the dolomite was characterized by low Fe content, high Mn content and low Sr content relative to the micritc limestone. The micritic limestone and different types of dolomite had similar rare earth element (REE) distribution patterns which were characterized by depletion of light REE, weak positive anomaly of La and negative anomaly of Ce, and the dolomite also had weak positive anomaly of Eu. Compared with the micritic limestone, the fine-to medium-grained dolomite and breccia dolomite had low values of δ18O and obvious high ratios of 87Sr/86Sr. REE distribution patterns of different types of dolomite indicated that some geochemical characteristics of primitive limestone were preserved during the dolomitization process in the Maokou Formation, while weak Eu positive anomaly of dolomite and isotopic difference in dolomite and limestone might be caused by high-temperature thermal fluids during the dolomitization process. The dolomitization of the Maokou Formation was controlled by some factors: (1) strata residual seawater and hydrothermal fluids derived from magmatism were major sources of Mg during the dolomitization process; (2) heating effect of Emeishan large igneous province provided abnormal high paleo-geotemperature for dolomitization; (3) fault systems offered rapid migration channels for abnormal geothermal convection and dolomitization fluid; (4) limestone of grain-shoal facies with good porosity and permeability was more prone to dolomitization than micritic limestone. Abnormal geotemperature and abundant Mg supply derived from Emeishan Large Igneous Province were key factors for dolomitization in the Maokou Formation, and different types of dolomites were formed in different periods of the dolomitization process. Keywords: Dolomite, Geochemistry, Dolomitization, Emeishan Large Igneous Province, Maokou Formation, Central Sichuan Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Jianqiang Liu [verfasserIn] Haofu Zheng [verfasserIn] Bo Liu [verfasserIn] Hongguang Liu [verfasserIn] Kaibo Shi [verfasserIn] Rongtao Guo [verfasserIn] Xuefeng Zhang [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2017

Übergeordnetes Werk:	In: Petroleum Research - KeAi Communications Co., Ltd., 2019, 2(2017), 4, Seite 366-377
Übergeordnetes Werk:	volume:2 ; year:2017 ; number:4 ; pages:366-377

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1016/j.ptlrs.2017.01.004

Katalog-ID:	DOAJ036016039

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520			\|a Dolomites of the Maokou Formation in the central Sichuan were mainly developed in the middle-upper part of Member 2 and the lower part of Member 3 of Maokou Formation, it could be divided into fine-to medium-grained calcareous dolomite, fine-to medium-grained dolomite and breccia dolomite according to petrology characteristic, and the latter two were dominant. Through contrast of geochemical characteristic between micritic limestone and different types of dolomite, the dolomite was characterized by low Fe content, high Mn content and low Sr content relative to the micritc limestone. The micritic limestone and different types of dolomite had similar rare earth element (REE) distribution patterns which were characterized by depletion of light REE, weak positive anomaly of La and negative anomaly of Ce, and the dolomite also had weak positive anomaly of Eu. Compared with the micritic limestone, the fine-to medium-grained dolomite and breccia dolomite had low values of δ18O and obvious high ratios of 87Sr/86Sr. REE distribution patterns of different types of dolomite indicated that some geochemical characteristics of primitive limestone were preserved during the dolomitization process in the Maokou Formation, while weak Eu positive anomaly of dolomite and isotopic difference in dolomite and limestone might be caused by high-temperature thermal fluids during the dolomitization process. The dolomitization of the Maokou Formation was controlled by some factors: (1) strata residual seawater and hydrothermal fluids derived from magmatism were major sources of Mg during the dolomitization process; (2) heating effect of Emeishan large igneous province provided abnormal high paleo-geotemperature for dolomitization; (3) fault systems offered rapid migration channels for abnormal geothermal convection and dolomitization fluid; (4) limestone of grain-shoal facies with good porosity and permeability was more prone to dolomitization than micritic limestone. Abnormal geotemperature and abundant Mg supply derived from Emeishan Large Igneous Province were key factors for dolomitization in the Maokou Formation, and different types of dolomites were formed in different periods of the dolomitization process. Keywords: Dolomite, Geochemistry, Dolomitization, Emeishan Large Igneous Province, Maokou Formation, Central Sichuan
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allfields	10.1016/j.ptlrs.2017.01.004 doi (DE-627)DOAJ036016039 (DE-599)DOAJd81e8382b27d46cca742901372cec656 DE-627 ger DE-627 rakwb eng TP670-699 TP690-692.5 Jianqiang Liu verfasserin aut Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Dolomites of the Maokou Formation in the central Sichuan were mainly developed in the middle-upper part of Member 2 and the lower part of Member 3 of Maokou Formation, it could be divided into fine-to medium-grained calcareous dolomite, fine-to medium-grained dolomite and breccia dolomite according to petrology characteristic, and the latter two were dominant. Through contrast of geochemical characteristic between micritic limestone and different types of dolomite, the dolomite was characterized by low Fe content, high Mn content and low Sr content relative to the micritc limestone. The micritic limestone and different types of dolomite had similar rare earth element (REE) distribution patterns which were characterized by depletion of light REE, weak positive anomaly of La and negative anomaly of Ce, and the dolomite also had weak positive anomaly of Eu. Compared with the micritic limestone, the fine-to medium-grained dolomite and breccia dolomite had low values of δ18O and obvious high ratios of 87Sr/86Sr. REE distribution patterns of different types of dolomite indicated that some geochemical characteristics of primitive limestone were preserved during the dolomitization process in the Maokou Formation, while weak Eu positive anomaly of dolomite and isotopic difference in dolomite and limestone might be caused by high-temperature thermal fluids during the dolomitization process. The dolomitization of the Maokou Formation was controlled by some factors: (1) strata residual seawater and hydrothermal fluids derived from magmatism were major sources of Mg during the dolomitization process; (2) heating effect of Emeishan large igneous province provided abnormal high paleo-geotemperature for dolomitization; (3) fault systems offered rapid migration channels for abnormal geothermal convection and dolomitization fluid; (4) limestone of grain-shoal facies with good porosity and permeability was more prone to dolomitization than micritic limestone. Abnormal geotemperature and abundant Mg supply derived from Emeishan Large Igneous Province were key factors for dolomitization in the Maokou Formation, and different types of dolomites were formed in different periods of the dolomitization process. Keywords: Dolomite, Geochemistry, Dolomitization, Emeishan Large Igneous Province, Maokou Formation, Central Sichuan Oils, fats, and waxes Petroleum refining. Petroleum products Haofu Zheng verfasserin aut Bo Liu verfasserin aut Hongguang Liu verfasserin aut Kaibo Shi verfasserin aut Rongtao Guo verfasserin aut Xuefeng Zhang verfasserin aut In Petroleum Research KeAi Communications Co., Ltd., 2019 2(2017), 4, Seite 366-377 (DE-627)102832507X (DE-600)2938121-6 25241729 nnns volume:2 year:2017 number:4 pages:366-377 https://doi.org/10.1016/j.ptlrs.2017.01.004 kostenfrei https://doaj.org/article/d81e8382b27d46cca742901372cec656 kostenfrei http://www.sciencedirect.com/science/article/pii/S209624951730100X kostenfrei https://doaj.org/toc/2096-2495 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2 2017 4 366-377
spelling	10.1016/j.ptlrs.2017.01.004 doi (DE-627)DOAJ036016039 (DE-599)DOAJd81e8382b27d46cca742901372cec656 DE-627 ger DE-627 rakwb eng TP670-699 TP690-692.5 Jianqiang Liu verfasserin aut Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Dolomites of the Maokou Formation in the central Sichuan were mainly developed in the middle-upper part of Member 2 and the lower part of Member 3 of Maokou Formation, it could be divided into fine-to medium-grained calcareous dolomite, fine-to medium-grained dolomite and breccia dolomite according to petrology characteristic, and the latter two were dominant. Through contrast of geochemical characteristic between micritic limestone and different types of dolomite, the dolomite was characterized by low Fe content, high Mn content and low Sr content relative to the micritc limestone. The micritic limestone and different types of dolomite had similar rare earth element (REE) distribution patterns which were characterized by depletion of light REE, weak positive anomaly of La and negative anomaly of Ce, and the dolomite also had weak positive anomaly of Eu. Compared with the micritic limestone, the fine-to medium-grained dolomite and breccia dolomite had low values of δ18O and obvious high ratios of 87Sr/86Sr. REE distribution patterns of different types of dolomite indicated that some geochemical characteristics of primitive limestone were preserved during the dolomitization process in the Maokou Formation, while weak Eu positive anomaly of dolomite and isotopic difference in dolomite and limestone might be caused by high-temperature thermal fluids during the dolomitization process. The dolomitization of the Maokou Formation was controlled by some factors: (1) strata residual seawater and hydrothermal fluids derived from magmatism were major sources of Mg during the dolomitization process; (2) heating effect of Emeishan large igneous province provided abnormal high paleo-geotemperature for dolomitization; (3) fault systems offered rapid migration channels for abnormal geothermal convection and dolomitization fluid; (4) limestone of grain-shoal facies with good porosity and permeability was more prone to dolomitization than micritic limestone. Abnormal geotemperature and abundant Mg supply derived from Emeishan Large Igneous Province were key factors for dolomitization in the Maokou Formation, and different types of dolomites were formed in different periods of the dolomitization process. Keywords: Dolomite, Geochemistry, Dolomitization, Emeishan Large Igneous Province, Maokou Formation, Central Sichuan Oils, fats, and waxes Petroleum refining. Petroleum products Haofu Zheng verfasserin aut Bo Liu verfasserin aut Hongguang Liu verfasserin aut Kaibo Shi verfasserin aut Rongtao Guo verfasserin aut Xuefeng Zhang verfasserin aut In Petroleum Research KeAi Communications Co., Ltd., 2019 2(2017), 4, Seite 366-377 (DE-627)102832507X (DE-600)2938121-6 25241729 nnns volume:2 year:2017 number:4 pages:366-377 https://doi.org/10.1016/j.ptlrs.2017.01.004 kostenfrei https://doaj.org/article/d81e8382b27d46cca742901372cec656 kostenfrei http://www.sciencedirect.com/science/article/pii/S209624951730100X kostenfrei https://doaj.org/toc/2096-2495 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2 2017 4 366-377
allfields_unstemmed	10.1016/j.ptlrs.2017.01.004 doi (DE-627)DOAJ036016039 (DE-599)DOAJd81e8382b27d46cca742901372cec656 DE-627 ger DE-627 rakwb eng TP670-699 TP690-692.5 Jianqiang Liu verfasserin aut Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Dolomites of the Maokou Formation in the central Sichuan were mainly developed in the middle-upper part of Member 2 and the lower part of Member 3 of Maokou Formation, it could be divided into fine-to medium-grained calcareous dolomite, fine-to medium-grained dolomite and breccia dolomite according to petrology characteristic, and the latter two were dominant. Through contrast of geochemical characteristic between micritic limestone and different types of dolomite, the dolomite was characterized by low Fe content, high Mn content and low Sr content relative to the micritc limestone. The micritic limestone and different types of dolomite had similar rare earth element (REE) distribution patterns which were characterized by depletion of light REE, weak positive anomaly of La and negative anomaly of Ce, and the dolomite also had weak positive anomaly of Eu. Compared with the micritic limestone, the fine-to medium-grained dolomite and breccia dolomite had low values of δ18O and obvious high ratios of 87Sr/86Sr. REE distribution patterns of different types of dolomite indicated that some geochemical characteristics of primitive limestone were preserved during the dolomitization process in the Maokou Formation, while weak Eu positive anomaly of dolomite and isotopic difference in dolomite and limestone might be caused by high-temperature thermal fluids during the dolomitization process. The dolomitization of the Maokou Formation was controlled by some factors: (1) strata residual seawater and hydrothermal fluids derived from magmatism were major sources of Mg during the dolomitization process; (2) heating effect of Emeishan large igneous province provided abnormal high paleo-geotemperature for dolomitization; (3) fault systems offered rapid migration channels for abnormal geothermal convection and dolomitization fluid; (4) limestone of grain-shoal facies with good porosity and permeability was more prone to dolomitization than micritic limestone. Abnormal geotemperature and abundant Mg supply derived from Emeishan Large Igneous Province were key factors for dolomitization in the Maokou Formation, and different types of dolomites were formed in different periods of the dolomitization process. Keywords: Dolomite, Geochemistry, Dolomitization, Emeishan Large Igneous Province, Maokou Formation, Central Sichuan Oils, fats, and waxes Petroleum refining. Petroleum products Haofu Zheng verfasserin aut Bo Liu verfasserin aut Hongguang Liu verfasserin aut Kaibo Shi verfasserin aut Rongtao Guo verfasserin aut Xuefeng Zhang verfasserin aut In Petroleum Research KeAi Communications Co., Ltd., 2019 2(2017), 4, Seite 366-377 (DE-627)102832507X (DE-600)2938121-6 25241729 nnns volume:2 year:2017 number:4 pages:366-377 https://doi.org/10.1016/j.ptlrs.2017.01.004 kostenfrei https://doaj.org/article/d81e8382b27d46cca742901372cec656 kostenfrei http://www.sciencedirect.com/science/article/pii/S209624951730100X kostenfrei https://doaj.org/toc/2096-2495 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2 2017 4 366-377
allfieldsGer	10.1016/j.ptlrs.2017.01.004 doi (DE-627)DOAJ036016039 (DE-599)DOAJd81e8382b27d46cca742901372cec656 DE-627 ger DE-627 rakwb eng TP670-699 TP690-692.5 Jianqiang Liu verfasserin aut Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Dolomites of the Maokou Formation in the central Sichuan were mainly developed in the middle-upper part of Member 2 and the lower part of Member 3 of Maokou Formation, it could be divided into fine-to medium-grained calcareous dolomite, fine-to medium-grained dolomite and breccia dolomite according to petrology characteristic, and the latter two were dominant. Through contrast of geochemical characteristic between micritic limestone and different types of dolomite, the dolomite was characterized by low Fe content, high Mn content and low Sr content relative to the micritc limestone. The micritic limestone and different types of dolomite had similar rare earth element (REE) distribution patterns which were characterized by depletion of light REE, weak positive anomaly of La and negative anomaly of Ce, and the dolomite also had weak positive anomaly of Eu. Compared with the micritic limestone, the fine-to medium-grained dolomite and breccia dolomite had low values of δ18O and obvious high ratios of 87Sr/86Sr. REE distribution patterns of different types of dolomite indicated that some geochemical characteristics of primitive limestone were preserved during the dolomitization process in the Maokou Formation, while weak Eu positive anomaly of dolomite and isotopic difference in dolomite and limestone might be caused by high-temperature thermal fluids during the dolomitization process. The dolomitization of the Maokou Formation was controlled by some factors: (1) strata residual seawater and hydrothermal fluids derived from magmatism were major sources of Mg during the dolomitization process; (2) heating effect of Emeishan large igneous province provided abnormal high paleo-geotemperature for dolomitization; (3) fault systems offered rapid migration channels for abnormal geothermal convection and dolomitization fluid; (4) limestone of grain-shoal facies with good porosity and permeability was more prone to dolomitization than micritic limestone. Abnormal geotemperature and abundant Mg supply derived from Emeishan Large Igneous Province were key factors for dolomitization in the Maokou Formation, and different types of dolomites were formed in different periods of the dolomitization process. Keywords: Dolomite, Geochemistry, Dolomitization, Emeishan Large Igneous Province, Maokou Formation, Central Sichuan Oils, fats, and waxes Petroleum refining. Petroleum products Haofu Zheng verfasserin aut Bo Liu verfasserin aut Hongguang Liu verfasserin aut Kaibo Shi verfasserin aut Rongtao Guo verfasserin aut Xuefeng Zhang verfasserin aut In Petroleum Research KeAi Communications Co., Ltd., 2019 2(2017), 4, Seite 366-377 (DE-627)102832507X (DE-600)2938121-6 25241729 nnns volume:2 year:2017 number:4 pages:366-377 https://doi.org/10.1016/j.ptlrs.2017.01.004 kostenfrei https://doaj.org/article/d81e8382b27d46cca742901372cec656 kostenfrei http://www.sciencedirect.com/science/article/pii/S209624951730100X kostenfrei https://doaj.org/toc/2096-2495 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2 2017 4 366-377
allfieldsSound	10.1016/j.ptlrs.2017.01.004 doi (DE-627)DOAJ036016039 (DE-599)DOAJd81e8382b27d46cca742901372cec656 DE-627 ger DE-627 rakwb eng TP670-699 TP690-692.5 Jianqiang Liu verfasserin aut Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Dolomites of the Maokou Formation in the central Sichuan were mainly developed in the middle-upper part of Member 2 and the lower part of Member 3 of Maokou Formation, it could be divided into fine-to medium-grained calcareous dolomite, fine-to medium-grained dolomite and breccia dolomite according to petrology characteristic, and the latter two were dominant. Through contrast of geochemical characteristic between micritic limestone and different types of dolomite, the dolomite was characterized by low Fe content, high Mn content and low Sr content relative to the micritc limestone. The micritic limestone and different types of dolomite had similar rare earth element (REE) distribution patterns which were characterized by depletion of light REE, weak positive anomaly of La and negative anomaly of Ce, and the dolomite also had weak positive anomaly of Eu. Compared with the micritic limestone, the fine-to medium-grained dolomite and breccia dolomite had low values of δ18O and obvious high ratios of 87Sr/86Sr. REE distribution patterns of different types of dolomite indicated that some geochemical characteristics of primitive limestone were preserved during the dolomitization process in the Maokou Formation, while weak Eu positive anomaly of dolomite and isotopic difference in dolomite and limestone might be caused by high-temperature thermal fluids during the dolomitization process. The dolomitization of the Maokou Formation was controlled by some factors: (1) strata residual seawater and hydrothermal fluids derived from magmatism were major sources of Mg during the dolomitization process; (2) heating effect of Emeishan large igneous province provided abnormal high paleo-geotemperature for dolomitization; (3) fault systems offered rapid migration channels for abnormal geothermal convection and dolomitization fluid; (4) limestone of grain-shoal facies with good porosity and permeability was more prone to dolomitization than micritic limestone. Abnormal geotemperature and abundant Mg supply derived from Emeishan Large Igneous Province were key factors for dolomitization in the Maokou Formation, and different types of dolomites were formed in different periods of the dolomitization process. Keywords: Dolomite, Geochemistry, Dolomitization, Emeishan Large Igneous Province, Maokou Formation, Central Sichuan Oils, fats, and waxes Petroleum refining. Petroleum products Haofu Zheng verfasserin aut Bo Liu verfasserin aut Hongguang Liu verfasserin aut Kaibo Shi verfasserin aut Rongtao Guo verfasserin aut Xuefeng Zhang verfasserin aut In Petroleum Research KeAi Communications Co., Ltd., 2019 2(2017), 4, Seite 366-377 (DE-627)102832507X (DE-600)2938121-6 25241729 nnns volume:2 year:2017 number:4 pages:366-377 https://doi.org/10.1016/j.ptlrs.2017.01.004 kostenfrei https://doaj.org/article/d81e8382b27d46cca742901372cec656 kostenfrei http://www.sciencedirect.com/science/article/pii/S209624951730100X kostenfrei https://doaj.org/toc/2096-2495 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2 2017 4 366-377
language	English
source	In Petroleum Research 2(2017), 4, Seite 366-377 volume:2 year:2017 number:4 pages:366-377
sourceStr	In Petroleum Research 2(2017), 4, Seite 366-377 volume:2 year:2017 number:4 pages:366-377
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topic_facet	Oils, fats, and waxes Petroleum refining. Petroleum products
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container_title	Petroleum Research
authorswithroles_txt_mv	Jianqiang Liu @@aut@@ Haofu Zheng @@aut@@ Bo Liu @@aut@@ Hongguang Liu @@aut@@ Kaibo Shi @@aut@@ Rongtao Guo @@aut@@ Xuefeng Zhang @@aut@@
publishDateDaySort_date	2017-01-01T00:00:00Z
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Through contrast of geochemical characteristic between micritic limestone and different types of dolomite, the dolomite was characterized by low Fe content, high Mn content and low Sr content relative to the micritc limestone. The micritic limestone and different types of dolomite had similar rare earth element (REE) distribution patterns which were characterized by depletion of light REE, weak positive anomaly of La and negative anomaly of Ce, and the dolomite also had weak positive anomaly of Eu. 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The dolomitization of the Maokou Formation was controlled by some factors: (1) strata residual seawater and hydrothermal fluids derived from magmatism were major sources of Mg during the dolomitization process; (2) heating effect of Emeishan large igneous province provided abnormal high paleo-geotemperature for dolomitization; (3) fault systems offered rapid migration channels for abnormal geothermal convection and dolomitization fluid; (4) limestone of grain-shoal facies with good porosity and permeability was more prone to dolomitization than micritic limestone. Abnormal geotemperature and abundant Mg supply derived from Emeishan Large Igneous Province were key factors for dolomitization in the Maokou Formation, and different types of dolomites were formed in different periods of the dolomitization process. 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author	Jianqiang Liu
spellingShingle	Jianqiang Liu misc TP670-699 misc TP690-692.5 misc Oils, fats, and waxes misc Petroleum refining. Petroleum products Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan
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topic_title	TP670-699 TP690-692.5 Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan
topic	misc TP670-699 misc TP690-692.5 misc Oils, fats, and waxes misc Petroleum refining. Petroleum products
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title	Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan
ctrlnum	(DE-627)DOAJ036016039 (DE-599)DOAJd81e8382b27d46cca742901372cec656
title_full	Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan
author_sort	Jianqiang Liu
journal	Petroleum Research
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author_browse	Jianqiang Liu Haofu Zheng Bo Liu Hongguang Liu Kaibo Shi Rongtao Guo Xuefeng Zhang
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class	TP670-699 TP690-692.5
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author-letter	Jianqiang Liu
doi_str_mv	10.1016/j.ptlrs.2017.01.004
author2-role	verfasserin
title_sort	petrology and geochemical characteristics of dolomite in the middle permian maoukou formation, central sichuan
callnumber	TP670-699
title_auth	Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan
abstract	Dolomites of the Maokou Formation in the central Sichuan were mainly developed in the middle-upper part of Member 2 and the lower part of Member 3 of Maokou Formation, it could be divided into fine-to medium-grained calcareous dolomite, fine-to medium-grained dolomite and breccia dolomite according to petrology characteristic, and the latter two were dominant. Through contrast of geochemical characteristic between micritic limestone and different types of dolomite, the dolomite was characterized by low Fe content, high Mn content and low Sr content relative to the micritc limestone. The micritic limestone and different types of dolomite had similar rare earth element (REE) distribution patterns which were characterized by depletion of light REE, weak positive anomaly of La and negative anomaly of Ce, and the dolomite also had weak positive anomaly of Eu. Compared with the micritic limestone, the fine-to medium-grained dolomite and breccia dolomite had low values of δ18O and obvious high ratios of 87Sr/86Sr. REE distribution patterns of different types of dolomite indicated that some geochemical characteristics of primitive limestone were preserved during the dolomitization process in the Maokou Formation, while weak Eu positive anomaly of dolomite and isotopic difference in dolomite and limestone might be caused by high-temperature thermal fluids during the dolomitization process. The dolomitization of the Maokou Formation was controlled by some factors: (1) strata residual seawater and hydrothermal fluids derived from magmatism were major sources of Mg during the dolomitization process; (2) heating effect of Emeishan large igneous province provided abnormal high paleo-geotemperature for dolomitization; (3) fault systems offered rapid migration channels for abnormal geothermal convection and dolomitization fluid; (4) limestone of grain-shoal facies with good porosity and permeability was more prone to dolomitization than micritic limestone. Abnormal geotemperature and abundant Mg supply derived from Emeishan Large Igneous Province were key factors for dolomitization in the Maokou Formation, and different types of dolomites were formed in different periods of the dolomitization process. Keywords: Dolomite, Geochemistry, Dolomitization, Emeishan Large Igneous Province, Maokou Formation, Central Sichuan
abstractGer	Dolomites of the Maokou Formation in the central Sichuan were mainly developed in the middle-upper part of Member 2 and the lower part of Member 3 of Maokou Formation, it could be divided into fine-to medium-grained calcareous dolomite, fine-to medium-grained dolomite and breccia dolomite according to petrology characteristic, and the latter two were dominant. Through contrast of geochemical characteristic between micritic limestone and different types of dolomite, the dolomite was characterized by low Fe content, high Mn content and low Sr content relative to the micritc limestone. The micritic limestone and different types of dolomite had similar rare earth element (REE) distribution patterns which were characterized by depletion of light REE, weak positive anomaly of La and negative anomaly of Ce, and the dolomite also had weak positive anomaly of Eu. Compared with the micritic limestone, the fine-to medium-grained dolomite and breccia dolomite had low values of δ18O and obvious high ratios of 87Sr/86Sr. REE distribution patterns of different types of dolomite indicated that some geochemical characteristics of primitive limestone were preserved during the dolomitization process in the Maokou Formation, while weak Eu positive anomaly of dolomite and isotopic difference in dolomite and limestone might be caused by high-temperature thermal fluids during the dolomitization process. The dolomitization of the Maokou Formation was controlled by some factors: (1) strata residual seawater and hydrothermal fluids derived from magmatism were major sources of Mg during the dolomitization process; (2) heating effect of Emeishan large igneous province provided abnormal high paleo-geotemperature for dolomitization; (3) fault systems offered rapid migration channels for abnormal geothermal convection and dolomitization fluid; (4) limestone of grain-shoal facies with good porosity and permeability was more prone to dolomitization than micritic limestone. Abnormal geotemperature and abundant Mg supply derived from Emeishan Large Igneous Province were key factors for dolomitization in the Maokou Formation, and different types of dolomites were formed in different periods of the dolomitization process. Keywords: Dolomite, Geochemistry, Dolomitization, Emeishan Large Igneous Province, Maokou Formation, Central Sichuan
abstract_unstemmed	Dolomites of the Maokou Formation in the central Sichuan were mainly developed in the middle-upper part of Member 2 and the lower part of Member 3 of Maokou Formation, it could be divided into fine-to medium-grained calcareous dolomite, fine-to medium-grained dolomite and breccia dolomite according to petrology characteristic, and the latter two were dominant. Through contrast of geochemical characteristic between micritic limestone and different types of dolomite, the dolomite was characterized by low Fe content, high Mn content and low Sr content relative to the micritc limestone. The micritic limestone and different types of dolomite had similar rare earth element (REE) distribution patterns which were characterized by depletion of light REE, weak positive anomaly of La and negative anomaly of Ce, and the dolomite also had weak positive anomaly of Eu. Compared with the micritic limestone, the fine-to medium-grained dolomite and breccia dolomite had low values of δ18O and obvious high ratios of 87Sr/86Sr. REE distribution patterns of different types of dolomite indicated that some geochemical characteristics of primitive limestone were preserved during the dolomitization process in the Maokou Formation, while weak Eu positive anomaly of dolomite and isotopic difference in dolomite and limestone might be caused by high-temperature thermal fluids during the dolomitization process. The dolomitization of the Maokou Formation was controlled by some factors: (1) strata residual seawater and hydrothermal fluids derived from magmatism were major sources of Mg during the dolomitization process; (2) heating effect of Emeishan large igneous province provided abnormal high paleo-geotemperature for dolomitization; (3) fault systems offered rapid migration channels for abnormal geothermal convection and dolomitization fluid; (4) limestone of grain-shoal facies with good porosity and permeability was more prone to dolomitization than micritic limestone. Abnormal geotemperature and abundant Mg supply derived from Emeishan Large Igneous Province were key factors for dolomitization in the Maokou Formation, and different types of dolomites were formed in different periods of the dolomitization process. Keywords: Dolomite, Geochemistry, Dolomitization, Emeishan Large Igneous Province, Maokou Formation, Central Sichuan
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container_issue	4
title_short	Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan
url	https://doi.org/10.1016/j.ptlrs.2017.01.004 https://doaj.org/article/d81e8382b27d46cca742901372cec656 http://www.sciencedirect.com/science/article/pii/S209624951730100X https://doaj.org/toc/2096-2495
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author2	Haofu Zheng Bo Liu Hongguang Liu Kaibo Shi Rongtao Guo Xuefeng Zhang
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up_date	2024-07-03T18:14:01.956Z
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