兰州大学机构库 >资源环境学院
Dating and genesis of the upper Weihe River terraces in Longxi basin, China
Pan, BT(潘保田); Liu Xiaofeng; Gao, HS(高红山); Yong, Wang; Li, JJ(李吉均)
2007-11
Source PublicationProgress in Natural Science-Materials International   Impact Factor & Quartile Of Published Year  The Latest Impact Factor & Quartile
ISSN1002-0071
Volume17Issue:11Pages:1334-1340
AbstractSeven terraces along the Weihe River in Longxi basin have been investigated. These terraces all consist of archetypal duality in structure, namely the floodplain deposits and the layer of gravels overlaid by varying thickness of the loess. By resorting to various dating approaches such as palaeomagnetic, optically stimulated luminescenece (OSL), C-14 and loess-paleosol sequence, we provide preliminary timing of these seven terraces along upper Weihe River. Analysis on sedimentation characteristics and dating of these terraces showed that seven terraces may be jointly generated by tectonic uplifts and climatic changes. Tectonic uplifts may accommodate initial river incision, and climatic change may be responsible for processes of subsequent channel widening and aggradation. Aggradation normally occurs during glacial periods, in contrast to down-cuttings during transitions from glacial to interglacial period. Moreover, on the basis of the timings and heights of these terraces, we infer that the long-term rate of river incision was determined to be 0.2 m/kyr during the last 870 kyr, which differs from other river incision rates. This discrepancy may reflect spatio-temporal differentiation of tectonic activities in the Qinling orogenic belt during the Pleistocene.
Keywordloess stratigraphy river terraces climate change upper Weihe River
Subject AreaMaterials Science ; Science & Technology - Other Topics
PublisherELSEVIER
Publication PlaceNEW YORK
Indexed BySCIE ; EI
Language英语
First Inst
Host of Journal中国材料研究学会 ; 中国科学技术协会
WOS IDWOS:000252506300011
SubtypeArticle
EI ID20074910963528
Department[Pan Baotian;
Liu Xiaofeng;
Gao Hongshan;
Yong, Wang;
Li Jijun] Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/119764
Collection资源环境学院
Corresponding AuthorPan Baotian
Affiliation
Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China
First Author AffilicationCollege of Earth Environmental Sciences
Corresponding Author AffilicationCollege of Earth Environmental Sciences
First Signature AffilicationCollege of Earth Environmental Sciences
Recommended Citation
GB/T 7714
Pan Baotian,Liu Xiaofeng,Gao Hongshan,et al. Dating and genesis of the upper Weihe River terraces in Longxi basin, China[J]. Progress in Natural Science-Materials International,2007,17(11):1334-1340.
APA Pan Baotian,Liu Xiaofeng,Gao Hongshan,Yong, Wang,&Li Jijun.(2007).Dating and genesis of the upper Weihe River terraces in Longxi basin, China.Progress in Natural Science-Materials International,17(11),1334-1340.
MLA Pan Baotian,et al."Dating and genesis of the upper Weihe River terraces in Longxi basin, China".Progress in Natural Science-Materials International 17.11(2007):1334-1340.
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