Characteristics of Meso-Cenozoic Igneous Complexes in the South Yellow Sea Basin,Lower Yangtze Craton of Eastern China and the Tectonic Setting
文献类型：CNKI期刊论文
| 作者 | PANG Yumao ; ZHANG Xunhua; XIAO Guolin; GUO Xingwei; WEN Zhenhe; WU Zhiqiang; ZHU Xiaoqing
|
| 发表日期 | 2017-06-15 |
| 出处 | Acta Geologica Sinica(English Edition)
 |
| 关键词 | South Yellow Sea Basin igneous complexes magnetic anomaly seismic facies characteristics igneous activity plate subduction |
| 英文摘要 | The South Yellow Sea Basin is partially surrounded by the East Asian continental MesoCenozoic widespread igneous rocks belt.Magnetic anomaly and multi-channel seismic data both reveal the prevalent occurrence of igneous rocks.We preliminarily defined the coupling relation between magnetic anomalies and igneous rock bodies.Some igneous complexes were also recognized by using multi-channel seismic and drilling data.We identified various intrusive and extrusive igneous rock bodies,such as stocks,sills,dikes,laccoliths and volcanic edifice relics through seismic facies analysis.We also forecasted the distribution characteristics of igneous complexes.More than fifty hypabyssal intrusions and volcanic relics were delineated based on the interpretation of magnetic anomaly and dense intersecting multi-channel seismic data.It is an important supplement to regional geology and basin evolution research.Spatial matching relations between igneous rock belts and fractures document that extensional N-E and N-NE-trending deep fractures may be effective pathways for magma intrusion.These fractures formed under the influence of regional extension during the MesoCenozoic after the Indosinian movement.Isotopic ages and crosscutting relations between igneous rock bodies and the surrounding bedded sedimentary strata both indicate that igneous activities might have initiated during the Late Jurassic,peaked in the Early Cretaceous,gradually weakened in the Late Cretaceous,and continued until the Miocene.Combined with previous studies,it is considered that the Meso-Cenozoic igneous activities,especially the intensive igneous activity of the Early Cretaceous,are closely associated with the subduction of the Paleo-Pacific Plate. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | financially supported by The National Special Project for Marine Geology(DD20160147) ; the National Basic Research Program of China(973 program ; Grant No.2013CB429701) ; the National Natural Science Foundation of China(Grant No.41210005) |
| 卷 | v.91期:03页:219-235 |
| 语种 | 英文; |
| 分类号 | P588.1;P736.1 |
| ISSN号 | 1000-9515 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/189297]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.NanjingCenter,ChinaGeologicalSurvey 2.InstituteofOceanology,ChineseAcademyScience 3.UniversityofChineseAcademyofSciences 4.LaboratoryforMarineMineralResources,QingdaoNationalLaboratoryforMarineScienceandTechnology 5.CollegeofEarthScienceandEngineering,ShandongUniversityofScienceandTechnology 6.MLRKeyLaboratoryofMarineHydrocarbonResourcesandEnvironmentalGeology,QingdaoInstituteofMarineGeology |
| 推荐引用方式 GB/T 7714 | PANG Yumao,ZHANG Xunhua,XIAO Guolin,et al. Characteristics of Meso-Cenozoic Igneous Complexes in the South Yellow Sea Basin,Lower Yangtze Craton of Eastern China and the Tectonic Setting. 2017. |
入库方式： OAI收割
来源：海洋研究所
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