Neoproterozoic Diamictite of the Luoquan Formation from the North China Block and Their Implications
文献类型：CNKI期刊论文
| 作者 | Peishan Sui ; Weidong Sun; Nan Han; Lei Wang; Shiwen Xie; Zihang Huang; Xiaohong Wang; Hongmei Gong; Jin Liu; Jinyan Lin
|
| 发表日期 | 2023-07-26 |
| 出处 | Journal of Earth Science
 |
| 关键词 | diamictite North China Craton paleoenvironment the Luoquan Formation Neoproterozoic sedimentation |
| 英文摘要 | Glacial diamictite may provide important information on paleoenvironment and average composition of the upper continental crust(UCC).In this study,we report sedimentary facies,petrological and geochemical characteristics of Neoproterozoic diamictite from a profile of the Luoquan Formation on the southern margin of the North China Block(NCB).Upwards the sampling profile,lithostratigraphic strata vary from massive diamictite with poorly sorted carbonate gravels to laminated diamictite with small gravels of terrestrial detrital materials.Along the profile,CaO-MgO-LOI-Sr values decrease with the increase of SiO_2-Al_2O_3-K_2O contents.All these petrological and geochemical variations indicate a change from lodgement till deposition in the proximal of ice sheet to ice-rafting deposition in glacial-marine environment with less dolomite to supply their source.Together with previous studies on diamictite from other outcrops on the NCB,the deposition of Luoquan diamictite reflects that the glaciation on the NCB vanished and the ice-rafting effect weakened with glacial transgression process.In addition,significant co-variations of various elements with La and Al_2O_3 confirm the significant conservation of most analyzed elements during the sedimentary processes to produce diamictite. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by the National Natural Science Foundation of China (Mos.41776069 and 41572047 to Yuanyuan Xiao) ; Strategic Priority Research Program of the Chinese Academy of Sciences (No.XDB42020302) ; the Taishan Scholar Program of Shandong (No.ts201712075) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) to Weidong Sun |
| 卷 | v.34期:04页:182-193 |
| 语种 | 英文; |
| 分类号 | P618.13 |
| ISSN号 | 1674-487X |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187052]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CASKeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences 2.LaboratoryforMarineGeology,QingdaoNationalLaboratoryforMarineScienceandTechnology 3.CollegeofEarthandPlanetarySciences,UniversityofChineseAcademyofSciences 4.CenterforOceanMega-Science,ChineseAcademyofSciences 5.CenterofDeep-SeaResearch,InstituteofOceanology,ChineseAcademyofSciences 6.ChangqingOilfieldExplorationandDevelopmentResearchInstitute 7.YanchangOilfieldExplorationandDevelopmentTechnologyResearchCenter 8.BeijingSHRIMPCenter,InstituteofGeology,ChineseAcademyofGeologicalSciences 9.PublicTechnologyServiceCenter,InstituteofOceanology,ChineseAcademyofSciences 10.DepartmentofGeology,NorthwestUniversity |
| 推荐引用方式 GB/T 7714 | Peishan Sui,Weidong Sun,Nan Han,et al. Neoproterozoic Diamictite of the Luoquan Formation from the North China Block and Their Implications. 2023. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。