Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/S0037-0738(01)00244-5 |
The impact of surges on the ice-marginal landsystem of Tungnaarjokull, Iceland | |
Andrzejewski, L | |
通讯作者 | Andrzejewski, L |
会议名称 | International Symposium on Modern and Ancient Ice-Marinal Landsystems |
会议日期 | APR, 2000 |
会议地点 | KEELE, ENGLAND |
英文摘要 | Geomorphological mapping of the Tungnaarjokull marginal zone based on the analysis of aerial and satellite photographs and field research were used as the basis for determining its morphogenesis. The differentiation of glacial and glaciofluvial forms. their association, and their mode of formation allotted five different domains of the Tungnaarjokull marginal zone to be distinguished. They record the distinct mechanism of glaciation and deglaciation of the glacier forefield. which is the result of the morphostructure of the volcanic substrate arid the dynamics of the glacier snout. Structural and textural investigation of end moraine deposits arid some proximal parts of the sandar allotted numerous glaciotectonic structures to be identified. Subglacial activity is conditioned by the local morphostructure of the substrate arid transforms flat or undulated moraine surfaces and results in their drumlinisation. Reconstruction of the character of individual advances of Tungnaarjokull, from the end of the 19th century using geomorphological and sedi trien to logical evidence within the ice marginal zone, suggest that they are consistent with surge-type advances, The configuration, dynamics and location of glacial streams in the marginal zone of Tungnaarjokull are conditioned by the Late Pleistocene volcanic relief. Where the arrangement of volcanic ridges is parallel to the glacier margin, its dynamics were restricted, creating groups Of linear ice-contact forms. Where volcanic ridges were arranged perpendicularly to the glacier snout, conditions ere suitable for the development of thrust end moraines and the formation of vast outwash plains. (C) 2002 Elsevier Science B.V. All rights reserved. |
英文关键词 | Iceland glacial morphology geomorphological mapping glaciotectonic surge volcanic morphostructure |
来源出版物 | SEDIMENTARY GEOLOGY |
ISSN | 0037-0738 |
出版年 | 2002 |
卷号 | 149 |
期号 | 1-3 |
页码 | 59-72 |
出版者 | ELSEVIER SCIENCE BV |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | Poland |
收录类别 | CPCI-S ; SCI-E |
WOS记录号 | WOS:000175656400005 |
WOS关键词 | GLACIER ; MORAINE |
WOS类目 | Geology |
WOS研究方向 | Geology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/294005 |
作者单位 | (1)Nicholas Copernicus Univ, Inst Geog, PL-87100 Torun, Poland |
推荐引用方式 GB/T 7714 | Andrzejewski, L. The impact of surges on the ice-marginal landsystem of Tungnaarjokull, Iceland[C]:ELSEVIER SCIENCE BV,2002:59-72. |
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