REE characteristics and geological significance of mudstones from Wenchang Formation in eastern Yangjiang Sag of Pearl River Mouth Basin
The REE in sedimentary rocks have strange chemical stability and can well record the original sedimentary message.In order to explore the material source, tectonic setting and sedimentary environment of the Wenchang Formation in Eastern Yangjiang Sag, the REE geochemical characteristics of Wenchang...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Bulletin of Geological Science and Technology
2022-05-01
|
| Series: | 地质科技通报 |
| Subjects: | |
| Online Access: | https://dzkjqb.cug.edu.cn/en/article/doi/10.19509/j.cnki.dzkq.2022.0067 |
| _version_ | 1797277530153025536 |
|---|---|
| author | Chuang Shi |
| author_facet | Chuang Shi |
| author_sort | Chuang Shi |
| collection | DOAJ |
| description | The REE in sedimentary rocks have strange chemical stability and can well record the original sedimentary message.In order to explore the material source, tectonic setting and sedimentary environment of the Wenchang Formation in Eastern Yangjiang Sag, the REE geochemical characteristics of Wenchang Formation mudstones from well Y-1 in the study area were systematically analyzed.The results show that the concentrations of REE in mudstones of Wenchang Formation is high, yielding relatively enrichedof LREE, obviouslyEu negative anomaly and weak Cepositive anomaly.The material of Wenchang Formation is mainly source fromgranite with a small amount of sedimentary rocks, and thus the sedimentary source area is likely to be the passive continental margin tectonic setting.TheCeanom and δCe indicate that the water was under reducing conditions, which could provide well preservation conditions for the development of high-quality source rocks. Furthermore, the temporal variations of redox conditions are consistent with the variation trend of TOC of mudstone in Wenchang Formation. |
| first_indexed | 2024-03-07T15:49:44Z |
| format | Article |
| id | doaj.art-cb0e568ab4a94461b2cc8f3bc4763c8a |
| institution | Directory Open Access Journal |
| issn | 2096-8523 |
| language | zho |
| last_indexed | 2024-03-07T15:49:44Z |
| publishDate | 2022-05-01 |
| publisher | Editorial Department of Bulletin of Geological Science and Technology |
| record_format | Article |
| series | 地质科技通报 |
| spelling | doaj.art-cb0e568ab4a94461b2cc8f3bc4763c8a2024-03-05T03:01:14ZzhoEditorial Department of Bulletin of Geological Science and Technology地质科技通报2096-85232022-05-0141316617210.19509/j.cnki.dzkq.2022.0067dzkjtb-41-3-166REE characteristics and geological significance of mudstones from Wenchang Formation in eastern Yangjiang Sag of Pearl River Mouth BasinChuang Shi0Shenzhen Branch of CNOOC Ltd., Shenzhen Guangdong 518054, ChinaThe REE in sedimentary rocks have strange chemical stability and can well record the original sedimentary message.In order to explore the material source, tectonic setting and sedimentary environment of the Wenchang Formation in Eastern Yangjiang Sag, the REE geochemical characteristics of Wenchang Formation mudstones from well Y-1 in the study area were systematically analyzed.The results show that the concentrations of REE in mudstones of Wenchang Formation is high, yielding relatively enrichedof LREE, obviouslyEu negative anomaly and weak Cepositive anomaly.The material of Wenchang Formation is mainly source fromgranite with a small amount of sedimentary rocks, and thus the sedimentary source area is likely to be the passive continental margin tectonic setting.TheCeanom and δCe indicate that the water was under reducing conditions, which could provide well preservation conditions for the development of high-quality source rocks. Furthermore, the temporal variations of redox conditions are consistent with the variation trend of TOC of mudstone in Wenchang Formation.https://dzkjqb.cug.edu.cn/en/article/doi/10.19509/j.cnki.dzkq.2022.0067tectonic settingsedimentary environmentrare earth elementwenchang formationeastern yangjiang sagpearl river mouth basin |
| spellingShingle | Chuang Shi REE characteristics and geological significance of mudstones from Wenchang Formation in eastern Yangjiang Sag of Pearl River Mouth Basin 地质科技通报 tectonic setting sedimentary environment rare earth element wenchang formation eastern yangjiang sag pearl river mouth basin |
| title | REE characteristics and geological significance of mudstones from Wenchang Formation in eastern Yangjiang Sag of Pearl River Mouth Basin |
| title_full | REE characteristics and geological significance of mudstones from Wenchang Formation in eastern Yangjiang Sag of Pearl River Mouth Basin |
| title_fullStr | REE characteristics and geological significance of mudstones from Wenchang Formation in eastern Yangjiang Sag of Pearl River Mouth Basin |
| title_full_unstemmed | REE characteristics and geological significance of mudstones from Wenchang Formation in eastern Yangjiang Sag of Pearl River Mouth Basin |
| title_short | REE characteristics and geological significance of mudstones from Wenchang Formation in eastern Yangjiang Sag of Pearl River Mouth Basin |
| title_sort | ree characteristics and geological significance of mudstones from wenchang formation in eastern yangjiang sag of pearl river mouth basin |
| topic | tectonic setting sedimentary environment rare earth element wenchang formation eastern yangjiang sag pearl river mouth basin |
| url | https://dzkjqb.cug.edu.cn/en/article/doi/10.19509/j.cnki.dzkq.2022.0067 |
| work_keys_str_mv | AT chuangshi reecharacteristicsandgeologicalsignificanceofmudstonesfromwenchangformationineasternyangjiangsagofpearlrivermouthbasin |