| 吴昊,李益朝,王秦伟,陈艳,姚珊,彭小华,李兴文,祝捷.陕北延安丹霞地貌类型特征及演化模式分析[J].矿产勘查,2018,9(9):1812-1819 |
| 陕北延安丹霞地貌类型特征及演化模式分析 |
| Characteristics of Danxia landform types and their evolution model in Yanan, Northern Shaanxi |
| 投稿时间：2018-07-15 |
| DOI： |
| 中文关键词: 沟谷型丹霞地貌 类型 演化模式 延安 |
| 英文关键词: valley- type Danxia landform, types,evolution model,Yanan |
| 基金项目:陕北丹霞地貌地质遗迹详细调查项目(编号:20180201 )资助。 |
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| 中文摘要: |
| 陕北延安地处黄土高原腹地,属典型的大陆性季风气候,区内大面积黄土覆盖,中西部地区沿河谷、沟谷出露丹霞地貌造景岩层——白垩系洛河组巨厚-块状红色砂岩,因而形成了延安地区特有的沟谷型丹霞地貌,依据沟谷形态、规模等特征,将其进一步划分为天井式、狭缝式、巷道式、宽谷式丹霞地貌4个类别,并通过对沟谷型丹霞地貌影响因素的分析,初步建立沟谷型丹霞地貌演化模式。 |
| 英文摘要: |
| Yanan in the north of Shaanxi is located in the hinterland of the Loess Plateau. which has a typical continental monsoon climate covered by large area of loess.The formation of the Danxia landform is the Cretaceous Luohe formation. It mainly distributes along the valley and gully, and its lithology is giant, massive red sandstone, forming a unique valley-type Danxia landform in Yanan area. According to the morphological characteristics of the valley and its scales etc., it can be further divided into types of patio, slit, roadway and wide valle. s Through the analysis of the factors affecting the valley-type Danxia landform, the evolution model of gully type Danxia geomorphology is preliminarily established. |
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