青海同德石藏丹霞地貌类型特征及成因演化分析  

Analysis on the Geomorphic Type Characteristics and Genetic Evolution of Danxia in Tongde Shizang,Qinghai

作　　者：陈光庭[1] 张金明[1] 郝呈禄 张启龙[1] 张海龙 CHEN Guangting;ZHANG Jinming;HAO Chenglu;ZHANG Qilong;ZHANG Hailong(Qinghai Insititute of Geological Survey,Qinghai Province Key Laboratory of Geological Processes and Mineral Resources of Northern Qinghai-Tibet Plateau,Xining 810012,Qinghai,China)

机构地区：[1]青海省地质调查院,青藏高原北部地质过程与矿产资源重点实验室,青海西宁810012

出　　处：《西北地质》2025年第1期291-299,共9页Northwestern Geology

基　　金：青海省原国土资源厅项目“青海省重要地质遗迹调查”(2016113003jc003);青海省科技厅项目“青海省核心地质遗迹成因及综合价值研究”(2019-KY-05)联合资助。

摘　　要：青海同德石藏地区发育黄河流域最上游连片分布面积最大、形态特征典型的丹霞地貌景观。基于实地调查和综合分析,按单体地貌形态对石藏丹霞地貌进行分类,包括7种丹霞正地貌和5种丹霞负地貌,类型多样、景观独特。石藏丹霞地貌的成景地层为古近纪西宁组紫红色巨厚层状砂砾岩,受地质构造、物理化学风化、机械侵蚀和重力等内外营力作用塑造形成,并经历了红层堆积、红层盆地构造抬升、丹霞地貌发育幼年期和青年期4个形成演化阶段。从地质学角度揭示出丹霞地貌的成因演化过程,对进一步认识中国西部地区丹霞地貌发育以及普及地球科学知识,保护和利用地学旅游资源具有理论和实际意义。The Danxia landform landscape with the largest contiguous area and typical morphological characteristics in the upper reaches of the Yellow River Basin is developed in Shizang area of Tongde,Qinghai Province.Based on the field investigation and comprehensive analysis,the Shizang Danxia landform was classified according to the individual landform form,including 7 Danxia positive landform and 5 Danxia negative landform,with diverse types and unique landscape.The Shizang Danxia landform in the formation of paleogene Xining group purple thick layer glutenite,affected by geological structure,physical and chemical weathering,erosion,and gravity machinery,such as the inside and outside sales force shape formation,and go through the red layer accumulation,red basin tectonic uplift,danxia landforms of infancy and adolescence formed four evolutionary stages.It is of theoretical and practical significance to further understand the development of Danxia landform in western China,popularize the knowledge of earth science,and protect and utilize the geoscience tourism resources.

关 键 词：丹霞地貌 类型特征 成因演化 青海同德 

分 类 号：P931[天文地球—自然地理学]