LA-ICP-MS Zircon U-Pb Isotopic Dating: Constraints on the Time of the Daoxiang Formation in North Fujian Province
Although there is poor outcrop in the area, the Daoxiang formation exposed in North Fujian has unique rock assemblage and metamorphism, and deformation characteristics show that the Daoxiang group does exist, and belongs to metamorphic rock of the Cambrian period in previous research with Sm-Nd mode...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Science Press, PR China
2014-11-01
|
| Series: | Yankuang ceshi |
| Subjects: | |
| Online Access: | http://www.ykcs.ac.cn/en/article/id/666028b4-07d2-44e6-9468-77480dc99623 |
| _version_ | 1811167540070580224 |
|---|---|
| author | ZHAO Xi-lin YU Ming-gang JIANG Yang LI Ya-nan JIN Guo-dong CHEN Zhi-hong XING Guang-fu |
| author_facet | ZHAO Xi-lin YU Ming-gang JIANG Yang LI Ya-nan JIN Guo-dong CHEN Zhi-hong XING Guang-fu |
| author_sort | ZHAO Xi-lin |
| collection | DOAJ |
| description | Although there is poor outcrop in the area, the Daoxiang formation exposed in North Fujian has unique rock assemblage and metamorphism, and deformation characteristics show that the Daoxiang group does exist, and belongs to metamorphic rock of the Cambrian period in previous research with Sm-Nd model age as (500±35) Ma. However, the limitations of the test method, adversly influence the the reliability of the formation age. LA-ICP-MS U-Pb dating provides reliable and precise evidence of the formation age of the rocks. Zircon LA-ICP-MS U-Pb data of basalt and siliceous rocks carried out by this group show that the newest age of basalt is (111.4±2.0) Ma, i.e. belonging to Early Cretaceous, which represents the lower limit of the formation age. The result is consistent with that of siliceous rocks, the newest of which is 124 Ma. The inherited zircon ages indicate proterozoic-paleozoic-mesozoic materials may be included in the source region, so the Daoxiang formation should be further disintegrated, the Vesicular basalt and Siliceous rocks which formed at Mesozoic should be separated from the Daoxiang formation. The discovery of all these ages enriches research work of tectonic evolution of Daoxiang formation and provides valuable data of the isotopic geochronological age. |
| first_indexed | 2024-04-10T16:12:08Z |
| format | Article |
| id | doaj.art-f65d99bfed254c77b521ae78ba5ec9bf |
| institution | Directory Open Access Journal |
| issn | 0254-5357 |
| language | English |
| last_indexed | 2024-04-10T16:12:08Z |
| publishDate | 2014-11-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj.art-f65d99bfed254c77b521ae78ba5ec9bf2023-02-10T00:59:55ZengScience Press, PR ChinaYankuang ceshi0254-53572014-11-01336892899ykcs-33-6-892LA-ICP-MS Zircon U-Pb Isotopic Dating: Constraints on the Time of the Daoxiang Formation in North Fujian ProvinceZHAO Xi-lin0YU Ming-gang1JIANG Yang2LI Ya-nan3JIN Guo-dong4CHEN Zhi-hong5XING Guang-fu6Nanjing Center of Geological Survey, China Geological Survey, Nanjing 210016, ChinaNanjing Center of Geological Survey, China Geological Survey, Nanjing 210016, ChinaNanjing Center of Geological Survey, China Geological Survey, Nanjing 210016, ChinaNanjing Center of Geological Survey, China Geological Survey, Nanjing 210016, ChinaNanjing Center of Geological Survey, China Geological Survey, Nanjing 210016, ChinaNanjing Center of Geological Survey, China Geological Survey, Nanjing 210016, ChinaNanjing Center of Geological Survey, China Geological Survey, Nanjing 210016, ChinaAlthough there is poor outcrop in the area, the Daoxiang formation exposed in North Fujian has unique rock assemblage and metamorphism, and deformation characteristics show that the Daoxiang group does exist, and belongs to metamorphic rock of the Cambrian period in previous research with Sm-Nd model age as (500±35) Ma. However, the limitations of the test method, adversly influence the the reliability of the formation age. LA-ICP-MS U-Pb dating provides reliable and precise evidence of the formation age of the rocks. Zircon LA-ICP-MS U-Pb data of basalt and siliceous rocks carried out by this group show that the newest age of basalt is (111.4±2.0) Ma, i.e. belonging to Early Cretaceous, which represents the lower limit of the formation age. The result is consistent with that of siliceous rocks, the newest of which is 124 Ma. The inherited zircon ages indicate proterozoic-paleozoic-mesozoic materials may be included in the source region, so the Daoxiang formation should be further disintegrated, the Vesicular basalt and Siliceous rocks which formed at Mesozoic should be separated from the Daoxiang formation. The discovery of all these ages enriches research work of tectonic evolution of Daoxiang formation and provides valuable data of the isotopic geochronological age.http://www.ykcs.ac.cn/en/article/id/666028b4-07d2-44e6-9468-77480dc99623daoxiang formationsiliceous rocksbasaltsla-icp-ms zircon u-pb isotopic datingearly cretaceousnorth fujian province |
| spellingShingle | ZHAO Xi-lin YU Ming-gang JIANG Yang LI Ya-nan JIN Guo-dong CHEN Zhi-hong XING Guang-fu LA-ICP-MS Zircon U-Pb Isotopic Dating: Constraints on the Time of the Daoxiang Formation in North Fujian Province Yankuang ceshi daoxiang formation siliceous rocks basalts la-icp-ms zircon u-pb isotopic dating early cretaceous north fujian province |
| title | LA-ICP-MS Zircon U-Pb Isotopic Dating: Constraints on the Time of the Daoxiang Formation in North Fujian Province |
| title_full | LA-ICP-MS Zircon U-Pb Isotopic Dating: Constraints on the Time of the Daoxiang Formation in North Fujian Province |
| title_fullStr | LA-ICP-MS Zircon U-Pb Isotopic Dating: Constraints on the Time of the Daoxiang Formation in North Fujian Province |
| title_full_unstemmed | LA-ICP-MS Zircon U-Pb Isotopic Dating: Constraints on the Time of the Daoxiang Formation in North Fujian Province |
| title_short | LA-ICP-MS Zircon U-Pb Isotopic Dating: Constraints on the Time of the Daoxiang Formation in North Fujian Province |
| title_sort | la icp ms zircon u pb isotopic dating constraints on the time of the daoxiang formation in north fujian province |
| topic | daoxiang formation siliceous rocks basalts la-icp-ms zircon u-pb isotopic dating early cretaceous north fujian province |
| url | http://www.ykcs.ac.cn/en/article/id/666028b4-07d2-44e6-9468-77480dc99623 |
| work_keys_str_mv | AT zhaoxilin laicpmszirconupbisotopicdatingconstraintsonthetimeofthedaoxiangformationinnorthfujianprovince AT yuminggang laicpmszirconupbisotopicdatingconstraintsonthetimeofthedaoxiangformationinnorthfujianprovince AT jiangyang laicpmszirconupbisotopicdatingconstraintsonthetimeofthedaoxiangformationinnorthfujianprovince AT liyanan laicpmszirconupbisotopicdatingconstraintsonthetimeofthedaoxiangformationinnorthfujianprovince AT jinguodong laicpmszirconupbisotopicdatingconstraintsonthetimeofthedaoxiangformationinnorthfujianprovince AT chenzhihong laicpmszirconupbisotopicdatingconstraintsonthetimeofthedaoxiangformationinnorthfujianprovince AT xingguangfu laicpmszirconupbisotopicdatingconstraintsonthetimeofthedaoxiangformationinnorthfujianprovince |