IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
横断山区第四纪冰期的划分与对比
Alternative TitleCLASSIFICATION AND CORRELATION OF THE QUATERNARY GLACIAL EPOCH IN THE HENGDUAN (TRANSVERSE) MOUNTAINS
李钟武; 陈治荣; 王明龙
1991
Source Publication地质论评
ISSN0371-5736
Volume37Issue:2Pages:125-133
SubtypeArticle
Contribution Rank1
Abstract1988年7月15日西藏波密米堆终碛湖发生溃决,最大洪峰流量1270立方米/秒,溃决水量540万立方米,形成了大规模的泥石流-洪水灾害。冰湖溃决的原因是;终碛堤存在渗漏薄弱环节,堤内有埋藏冰;持续高温和冰川融水的潜热使埋藏冰融化,由潜蚀而迅速发展成管涌导致溃决。; 1988年以来,我国推广香根草蓠作水土保持措施,收到的水土保持效益甚佳,香根草篱的短处有:经济效益欠佳,与作物争水肥,容易发生病虫害。为使香根草蓠扬长避短,提出的意见有:1.宜在秦岭-伏牛山以南海拔<2000米的地区推广;2.人少地多的山区荒坡地上可大力推广;3.建立香根草与经济作物组成的混合蓠;4.加强香根草病虫害防治研究。 ; 横断山区是我国第四纪冰川发育期次较多、古冰川遗迹也最多的地区之一。本文着重介绍了作者近10年来在该区考察中取得的大量新资料,特别是14C年代资料,在此基础上对该区第四纪冰期划分出8期(次)冰期(冰进、间冰阶段),并进行了对比。作者认为该区冰川具有明显的区域性规律,其与青藏高原抬升有关;横断山区第四纪冰川活动范围可至北纬26°线以北。
Other AbstractThere are many Quaternary glacial development stages in the Hengduan(Transverse) Mountains, southwestern China, and palaeoglacial remnants of this area are well developed. This paper presents many new data which were obtained from field observations during the past 10 years, of which related 14C age data are vcry valuable. Based on the above data, the Quaternary glacial epoch of the area can be divided into the following from early to later: l) Yajiageng glacial stage of the Middle Pleistocene; 2) Early Hailuogou glacial stage of the Late Plcistocene; 3) Qingshiban interglacial stage of the Late Pleistocene; 4) Late Hailuogou glacial stage of the Late Pleistocene; 5) Zhituoda glacial advance of the Holocene; 6) Dayanwo glacial advance of the Holocene; 7) Hailuogou glacial advance of the Holocene and 8) Glacial advance of the 17th to 19th centuries.Two conclusions are drawn in the end of this paper: 1) Quaternary glaciers were developed first in the Qinghai-Xizang(Tibet)Plateau and its activity then progressively migrated toward the Hengduan Mountains area. This regional regularity corresponds to uplifting of the Qinghai-Xizang Plateau. 2) The southern boundary of the activity of Quaternary glaciers goes as far as north of latitude 26°N.
Keyword第四纪冰期 第四纪冰川 横断山区 古冰川遗迹 冰进 贡嘎山 新冰期
Indexed ByCSCD
Language中文
CSCD IDCSCD:142689
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10958
Collection成都山地所知识仓储(2009年以前)
Affiliation中国科学院成都地理研究所
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
李钟武,陈治荣,王明龙. 横断山区第四纪冰期的划分与对比[J]. 地质论评,1991,37(2):125-133.
APA 李钟武,陈治荣,&王明龙.(1991).横断山区第四纪冰期的划分与对比.地质论评,37(2),125-133.
MLA 李钟武,et al."横断山区第四纪冰期的划分与对比".地质论评 37.2(1991):125-133.
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