Sediment Provenance of Shahejie Formation in Lixian Slope of Raoyang Depression Based on the Detrital Zircon Dating Analysis
Chen Hehe
Zhu Xiaomin
Huang Handong
Shi Ruisheng
Luo Yaneng
Cui Gang
Abstract：The purpose of this study is to clarify the relationship between sediment provenance combination and sedimentary system of the Member 1 of Paleogene Shahejie Formation,Lixian county slope,Raoyang depression.According to the characteristics of sedimentary gentle slope in Raoyang sag,the distribution of the source systems and "Source-to-Sink" configuration of the Member 1 of Paleogene Shahejie Formation are discussed,based on the detrital zircon U-Pb dating and traditional method of provenance analysis in this study.According to the difference of paleo geomorphology and drilling distribution characteristics,the slope is divided into three areas,A,B and C,which correspond to three provenance systems respectively.More specifically,in terms of the northwest provenance system,the provenance is the Paleozoic igneous rocks from the Xing-Meng orogenic belt,carried by ancient Daqing river system from the northwest to the A district of theslope.As to the west provenance system,the provenance is the Mesozoicigneous rocks,the Meso-Neoproterozoicintrusive rocks,the Mesoproterozoic metamorphic rocks in Laiyuan district,carried by the ancient Tanghe river system from west to the B district of the slope.In the case of the southwest provenance system,the provenance is the Paleoproterozoic metamorphic rocks,carried by the ancient Dasha river system from the southwest to the C district of the slope.There is a positive correlation between detrital zircon content and drainage area.
Keywords：provenance systembedrock typeszircon U-Pb datingpaleo-water systemLixian slopepetroleum geology
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：17( 1955-1971 )