Middle Miocene-Pleistocene Magneto-Cyclostratigraphy from IODP Site U1501 in the Northern South China Sea
Site U1501 of International Ocean Discovery Program (IODP) Expedition 368 locates on a broad regional basement high in the northern margin of the South China Sea (SCS). This study refines the chronostratigraphy of the upper 160 m sedimentary succession from Hole U1501C using paleomagnetic measuremen...
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| Format: | Article |
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Frontiers Media S.A.
2022-05-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.882617/full |
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| author | Meinan Shi Meinan Shi Meinan Shi Huaichun Wu Huaichun Wu Huaichun Wu Eric C. Ferré Sara Satolli Qiang Fang Qiang Fang Qiang Fang Yunfeng Nie Yunfeng Nie Yunfeng Nie Yuhe Qin Yuhe Qin Yuhe Qin Shihong Zhang Tianshui Yang Haiyan Li |
| author_facet | Meinan Shi Meinan Shi Meinan Shi Huaichun Wu Huaichun Wu Huaichun Wu Eric C. Ferré Sara Satolli Qiang Fang Qiang Fang Qiang Fang Yunfeng Nie Yunfeng Nie Yunfeng Nie Yuhe Qin Yuhe Qin Yuhe Qin Shihong Zhang Tianshui Yang Haiyan Li |
| author_sort | Meinan Shi |
| collection | DOAJ |
| description | Site U1501 of International Ocean Discovery Program (IODP) Expedition 368 locates on a broad regional basement high in the northern margin of the South China Sea (SCS). This study refines the chronostratigraphy of the upper 160 m sedimentary succession from Hole U1501C using paleomagnetic measurements and cyclostratigraphic analysis on the Natural Gamma Radiation (NGR) data. Rock magnetic analysis displays that the magnetic signal of the sediments is mainly carried by single-domain (SD) and multi-domain (MD) magnetite. A total of 12 geomagnetic reversals are identified and correlated to the geomagnetic polarity time scale (GPTS) in Geologic Time Scale 2020 (GTS 2020), combining biostratigraphic data and planktonic foraminiferal oxygen records. The Milankovitch cycles of 405-kyr long orbital eccentricity, ∼100-kyr short orbital eccentricity, and obliquity cycles are identified in the NGR profile. A 15.54 Myr astronomical time scale is constructed by tuning the short eccentricity cycles filtered from the NGR profiles to the La2010 astronomical solution with the constraints of the magnetostratigraphic results, biostratigraphic age datum and planktonic foraminiferal oxygen records. This new high-resolution age model provides a new temporal constraint on the tectonic and paleoenvironmental evolution in the South China Sea. |
| first_indexed | 2024-04-12T11:29:38Z |
| format | Article |
| id | doaj.art-34f6946d4f65431eb35e5f051335bb87 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-12T11:29:38Z |
| publishDate | 2022-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-34f6946d4f65431eb35e5f051335bb872022-12-22T03:35:03ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632022-05-011010.3389/feart.2022.882617882617Middle Miocene-Pleistocene Magneto-Cyclostratigraphy from IODP Site U1501 in the Northern South China SeaMeinan Shi0Meinan Shi1Meinan Shi2Huaichun Wu3Huaichun Wu4Huaichun Wu5Eric C. Ferré6Sara Satolli7Qiang Fang8Qiang Fang9Qiang Fang10Yunfeng Nie11Yunfeng Nie12Yunfeng Nie13Yuhe Qin14Yuhe Qin15Yuhe Qin16Shihong Zhang17Tianshui Yang18Haiyan Li19State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, ChinaSchool of Ocean Science, China University of Geosciences, Beijing, ChinaMarine and Polar Research Center, China University of Geosciences, Beijing, ChinaState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, ChinaSchool of Ocean Science, China University of Geosciences, Beijing, ChinaMarine and Polar Research Center, China University of Geosciences, Beijing, ChinaSchool of Geosciences, University of Louisiana at Lafayette, Lafayette, LA, United StatesDepartment of Engineering and Geology, University of Chieti-Pescara, Chieti, ItalyState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, ChinaSchool of Ocean Science, China University of Geosciences, Beijing, ChinaMarine and Polar Research Center, China University of Geosciences, Beijing, ChinaState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, ChinaSchool of Ocean Science, China University of Geosciences, Beijing, ChinaMarine and Polar Research Center, China University of Geosciences, Beijing, ChinaState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, ChinaSchool of Ocean Science, China University of Geosciences, Beijing, ChinaMarine and Polar Research Center, China University of Geosciences, Beijing, ChinaState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, ChinaState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, ChinaState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, ChinaSite U1501 of International Ocean Discovery Program (IODP) Expedition 368 locates on a broad regional basement high in the northern margin of the South China Sea (SCS). This study refines the chronostratigraphy of the upper 160 m sedimentary succession from Hole U1501C using paleomagnetic measurements and cyclostratigraphic analysis on the Natural Gamma Radiation (NGR) data. Rock magnetic analysis displays that the magnetic signal of the sediments is mainly carried by single-domain (SD) and multi-domain (MD) magnetite. A total of 12 geomagnetic reversals are identified and correlated to the geomagnetic polarity time scale (GPTS) in Geologic Time Scale 2020 (GTS 2020), combining biostratigraphic data and planktonic foraminiferal oxygen records. The Milankovitch cycles of 405-kyr long orbital eccentricity, ∼100-kyr short orbital eccentricity, and obliquity cycles are identified in the NGR profile. A 15.54 Myr astronomical time scale is constructed by tuning the short eccentricity cycles filtered from the NGR profiles to the La2010 astronomical solution with the constraints of the magnetostratigraphic results, biostratigraphic age datum and planktonic foraminiferal oxygen records. This new high-resolution age model provides a new temporal constraint on the tectonic and paleoenvironmental evolution in the South China Sea.https://www.frontiersin.org/articles/10.3389/feart.2022.882617/fullpaleomagnetismmagnetostratigraphymagnetic mineralsrock magnetismmilankovitch cyclesorbital tuning |
| spellingShingle | Meinan Shi Meinan Shi Meinan Shi Huaichun Wu Huaichun Wu Huaichun Wu Eric C. Ferré Sara Satolli Qiang Fang Qiang Fang Qiang Fang Yunfeng Nie Yunfeng Nie Yunfeng Nie Yuhe Qin Yuhe Qin Yuhe Qin Shihong Zhang Tianshui Yang Haiyan Li Middle Miocene-Pleistocene Magneto-Cyclostratigraphy from IODP Site U1501 in the Northern South China Sea Frontiers in Earth Science paleomagnetism magnetostratigraphy magnetic minerals rock magnetism milankovitch cycles orbital tuning |
| title | Middle Miocene-Pleistocene Magneto-Cyclostratigraphy from IODP Site U1501 in the Northern South China Sea |
| title_full | Middle Miocene-Pleistocene Magneto-Cyclostratigraphy from IODP Site U1501 in the Northern South China Sea |
| title_fullStr | Middle Miocene-Pleistocene Magneto-Cyclostratigraphy from IODP Site U1501 in the Northern South China Sea |
| title_full_unstemmed | Middle Miocene-Pleistocene Magneto-Cyclostratigraphy from IODP Site U1501 in the Northern South China Sea |
| title_short | Middle Miocene-Pleistocene Magneto-Cyclostratigraphy from IODP Site U1501 in the Northern South China Sea |
| title_sort | middle miocene pleistocene magneto cyclostratigraphy from iodp site u1501 in the northern south china sea |
| topic | paleomagnetism magnetostratigraphy magnetic minerals rock magnetism milankovitch cycles orbital tuning |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.882617/full |
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