干旱区生态环境知识资源中心(Arid): The Influence of the Characteristics of Drainage Basin on Depositional Processes of the Alluvial Fan: An Example from the Cretaceous Duwon Formation in Goheung Area

Arid

DOI	10.9719/EEG.2021.54.4.441
	The Influence of the Characteristics of Drainage Basin on Depositional Processes of the Alluvial Fan: An Example from the Cretaceous Duwon Formation in Goheung Area
	Lee, Kyung Jin; Park, Seung-Ik; Lee, Hyojong; Gihm, Yong Sik
通讯作者	Gihm, YS (corresponding author), Kyungpook Natl Univ, Dept Geol, Daegu, South Korea.
来源期刊	ECONOMIC AND ENVIRONMENTAL GEOLOGY
ISSN	1225-7281
EISSN	2288-7962
出版年	2021
卷号	54 期号:4 页码:441-456
英文摘要	The Cretaceous Duwon Formation was studied on the basis of sedimentologic analysis in order to unravel geologic conditions for the development of the streamflow-dominated alluvial fan under arid to semi-arid climatic conditions. The Duwon Formation unconformably overlies the Paleoproterozoic gneiss (basement). Based on the sedimentologic analysis, the Duwon Formation is interpreted to have been deposited in gravelly braided stream (FA-1) near the basement, laterally transitional to sandy braided stream (FA-2) and floodplain environments (FA-3) with distance (< 7 km) from the basement. Lateral changes in sedimentary facies and the well development of calcrete nodules in FA-3, together with radial paleocurrent directions measured in FA-1, are suggestive of the deposition of the Duwon Formation in streamflow-dominated alluvial fan under arid to semi-arid climatic conditions. Recent analysis of detrital zircon chronology suggests that sediments of the Duwon Formation were derived from the southwestern part of the Korean peninsula, including the western part of Yeongnam Massif and the southwestern part of Okcheon Belt. This implies the alluvial fan where the Duwon Formation accumulated had the large drainage basin. Because the large drainage basin can supply the significant amounts of water and temporarily store the sediments within the basin, watery floodwater carried sediments to the alluvial fan rather than the debris flows. Furthermore, the drainage basin largely composed of coarse-grained metamorphic and igneous rocks produced sand-grade sediments, preventing evolution of floodwater into debris flows. We suggest that combined effects of the large drainage basin and its coarse-grained metamorphic and igneous rocks provided favorable conditions for the development of streamflowdominated alluvial fan, despite arid to semi-arid climatic conditions during sedimentation.
英文关键词	braided stream floodplain streamflow-dominated alluvial fan arid to semi-arid climate basement
类型	Article
语种	英语
开放获取类型	gold
收录类别	ESCI
WOS记录号	WOS:000716420200003
WOS关键词	KICKING-HORSE-RIVER ; U-PB AGES ; JINDONG FORMATION ; KYONGSANG BASIN ; NORTHWESTERN PART ; GYEONGSANG BASIN ; FACIES SEQUENCES ; KOREA ; EVOLUTION ; SEDIMENTOLOGY
WOS类目	Geology
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374282
作者单位	[Lee, Kyung Jin; Park, Seung-Ik; Gihm, Yong Sik] Kyungpook Natl Univ, Dept Geol, Daegu, South Korea; [Lee, Hyojong] Korea Inst Geosci & Mineral Resources, Marine & Petr Div, Daejeon, South Korea
推荐引用方式 GB/T 7714	Lee, Kyung Jin,Park, Seung-Ik,Lee, Hyojong,et al. The Influence of the Characteristics of Drainage Basin on Depositional Processes of the Alluvial Fan: An Example from the Cretaceous Duwon Formation in Goheung Area[J],2021,54(4):441-456.
APA	Lee, Kyung Jin,Park, Seung-Ik,Lee, Hyojong,&Gihm, Yong Sik.(2021).The Influence of the Characteristics of Drainage Basin on Depositional Processes of the Alluvial Fan: An Example from the Cretaceous Duwon Formation in Goheung Area.ECONOMIC AND ENVIRONMENTAL GEOLOGY,54(4),441-456.
MLA	Lee, Kyung Jin,et al."The Influence of the Characteristics of Drainage Basin on Depositional Processes of the Alluvial Fan: An Example from the Cretaceous Duwon Formation in Goheung Area".ECONOMIC AND ENVIRONMENTAL GEOLOGY 54.4(2021):441-456.