IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Alternative TitlePreliminary Investigation on Glaciation in Siguniang Mountainous Region of Wenchuan County in Sichuan Province
刘淑珍; 柴宗新; 陈继良
Corresponding Author刘淑珍
Source Publication冰川冻土
Abstract四姑娘山地区位于四川省汶川县与小金县的交界处。为耶睐山脉的中南段,主峰四姑娘山位于北纬31°6′,东经102°55′。主山脊线呈向西北凸出的弧形,南端走向南北,北段折向北东。沿主山脊线排列有大姑娘山,二姑娘山、三姑娘山、四姑娘山等30 余座
海拔5000m 以上的高峰,主峰四姑娘山如一巨大的金宇塔耸立于群峰之上,海拔高达6250m( 照片1 ) ,是四川省仅次于贡嘎山的第二高峰,终年自雪皑皑、雄伟壮观。山脉的东南坡是闻名中外的熊猫故乡一一卧龙大熊猫自然保护区。
(二十世纪)六十年代初期,李承三等曾到本区东南部皮条河下游耿达一带作过考察,并撰文记述耿达转经楼的"古冰川遗迹" 。
笔者1981 年、1982年曾两次随横断山考察队,对四姑娘山东南坡的皮条河流域、巴朗山、西坡日隆关、长坪沟、海子沟、小金河中游等地进行了考察。现将考察收集的资料进行整理,井草拟此文。
Other AbstractSiguniang Mountain is located on the western border of Sichuan Basin and in the northwest of the famous Wolong panda natural preserve region. There are not only 35 existing glaciers with an area of 21.05 km2, but also the remains of the quaternary glaciation with ancient cirques, glacial troughs and horns and comb-like ridges widely distributed over 4000 m a. s.l.. According to the height of their distribution, the ancient cirques can be divided into four steps:The cirques of first step lie between 4700 to 4800 m a.s.l., 100 to 200 m lower than the existing cirques and belong to parasitic cirques.Those of second step lying between 4560 to 4620 m a.s.l. are most widely distributed and the largest in size in the region.Those of third step lie between 4380 to 4450 m a.s.l..Those of fourth step lie at about 4000 m a.s.l. appeared as wide and shallow depressions becuase of long weathering and erosion.There are many ancient glacial troughes, such as Changping valley and Haizi valley in the region. They are middle in size and the ratios of depth to breadth are 1 : 4 to 1 : 5 . There are many glacial thresholds in the profile of the trough valleys, indicating that the erosion of the glacier was strong.The ancient morainic topography is preserved quite well in the glacial trough. For example, there are three lateral moraines, four terminal moraines in the Changping valley, and 3 to 5 moraines in the Haizi valley and Tangfang valley.Several glacial stages in quaternary Ice Age can be divided on the basis of the glacial geomorphology, their relationship one to another and the weathering degree of morainic debris in Siguniang mountainous region. Namely:l.Zhongliangzi Stage, middle Pleistocene.2.Rilongguan Stage ( subdivided into early and late ages),late Pleistocene.S.Liuercongg Neoglaciation ( belongs to post-glacial stage ) , 3000 year B.P..4.Yanggangzi Little Ice Age ( recent stage ) , 16-19th centuries.
Keyword四姑娘山 终碛 冰碛物 古冰斗 冰川作用 汶川县 侧碛 槽谷 海子 古冰川
Document Type期刊论文
Corresponding Author刘淑珍
Recommended Citation
GB/T 7714
刘淑珍,柴宗新,陈继良. 四川省汶川县四姑娘山地区冰川作用初步考察[J]. 冰川冻土,1986,8(1):72-82+99.
APA 刘淑珍,柴宗新,&陈继良.(1986).四川省汶川县四姑娘山地区冰川作用初步考察.冰川冻土,8(1),72-82+99.
MLA 刘淑珍,et al."四川省汶川县四姑娘山地区冰川作用初步考察".冰川冻土 8.1(1986):72-82+99.
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