[1]罗 培,秦子晗,孙传敏.川东褶皱山系“Ω形地貌”特征、成因和演化——以拟建华蓥山大峡谷地质公园为例[J].山地学报,2014,(05):526.
　LUO Pei,QIN Zihan,SUN Chuanmin.Characteristic, Formation and Evolution of “Ωshaped” Landform in Fold Cordillera of Eastern Sichuan： A Case of the Huayingshan Grand Canyon Geopark[J].Mountain Research,2014,(05):526.
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川东褶皱山系“Ω形地貌”特征、成因和演化——以拟建华蓥山大峡谷地质公园为例()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2014年05期
页码:
526
栏目:
山地环境
出版日期:
2014-05-15

文章信息/Info

Title:
Characteristic, Formation and Evolution of “Ωshaped” Landform in Fold Cordillera of Eastern Sichuan： A Case of the Huayingshan Grand Canyon Geopark
作者:
罗 培; 秦子晗; 孙传敏
1．成都理工大学地球科学学院，四川 成都 630049;
2.西华师范大学国土资源学院，四川 南充 637002
Author(s):
LUO Pei;  QIN Zihan; SUN Chuanmin
1. College Of Earth Sciences, Chengdu University of Technology，Chengdu 610059，China;
2.Land and Resources College, China West Normal University, Nanchong 637002, China
关键词:
川东褶皱山系; Ω形地貌; 特征、成因和演化; 华蓥山大峡谷地质公园
Keywords:
fold cordillera of eastern sichuan basin;  “Ωshaped” landform;  characteristic; formation and evolution;  Huayingshan Grand Canyon Geopark
分类号:
P931.2
文献标志码:
A
摘要:
以华蓥山中段华蓥山大峡谷地质公园内的“Ω形地貌”为例，在野外调查和资料分析的基础上，借助DEM，运用地貌学相关理论，对川东褶皱山系“Ω形地貌”特征、成因和演化进行了探讨。研究表明：该地貌在平面上呈“Ω”字形，发育于特殊的地质背景下，特点是内腔宽大，隘口窄小；华蓥山老龙洞背斜、李子沿向斜，近北东向和北西向两组节理以及走向断层——涂家院子2#逆断层是“Ω形地貌”形成的构造背景； 风化作用、流水侵蚀和溶蚀作用，是“Ω形地貌”主要外营力；“Ω形地貌”的形成过程分为6个阶段：前期（构造隆起为主的阶段）、幼年期（自由沟渠阶段）、青年期（断层发育后顺坡向形成横向断层谷）、壮年初期（形成“Ω形地貌”雏形）、壮年期（“Ω形地貌”最终形成）、老年期。
Abstract:
A kind of landform in fold cordillera of eastern Sichuan basin, because of its plane shape looks like “Ω”, is called “Ωshaped” landform in this paper. These landforms are different from canyons, funnel and cirque, it is necessary for us to study them. Based on longterm field reconnaissance and analysis of the data, using geomorphology theory and DEM, taking the “Ωshaped” landform in Huayingshan grand canyon geopark as an example. this paper research the feature, formation and evolution of the “Ωshaped” landform. Studies have shown that ,firstly, the typical characteristic of “Ωshaped” landforms is that the indocile is wader than the port; secondly, the factors, such as Haying mountain compound anticline, two groups main joints, Tujiayuanzi 2# strike fault. etc, constitute the geologic background of “Ωshaped” landform; besides, weathering, fluvial erosion, and corrosion are main exogenic force of “Ωshaped” landform. According to the geomorphology research methodology, the evolution process of “Ωshaped” landform is divided into five stages in this paper, including: antecedent(tectonic upwarping), infancy stage (ditches developing on anticline), neanic stage (lateral ateral fault valley developing gradually with the ateral fault yielding), Submature (incipient “Ωshaped” landform begun to take shape), mature stage (poort developing tended to stagnation, endocoel continued to expand , “Ωshaped” landform formed finally.)and stage of old age.

备注/Memo

备注/Memo:
收稿日期(Received date)：2013-10-11；改回日期(Accepted): 2014-03-15。
基金项目（Foundation item）：国家自然科学基金青年项目（41101348）资助。［Supported by the National Natural Sciences Foundation of China Youth Project，No．41101348.］
作者简介（Biography）：罗培（1974-），男，四川阆中人，副教授，主要从事地貌学和景观地学研究。［Luo Pei ( 1974-) , born in Langzhong of Sichuan Province，associate professor, engaged in geomorphology and landscape geoscience
更新日期/Last Update: 1900-01-01