ALLUVIAL FANS OF THE EASTERN ITALIAN ALPS - MORPHOMETRY AND DEPOSITIONAL PROCESSES

被引：11
|
作者：
MARCHI, L
TECCA, PR
机构：
来源：
GEODINAMICA ACTA | 1995年 / 8卷 / 01期
关键词：
ALPINE WATERSHED; ALLUVIAL FAN; DEBRIS FLOW; VALLEY FLOOR; DEPOSITIONAL PROCESSES;
D O I：
10.1080/09853111.1995.11105270
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Alluvial fans are abundant in many valleys of the Alps, consisting of important sites for human settlements. Relationships between alluvial fan morphometry and drainage basin characteristics have been investigated in six valleys of the Eastern Italian Alps, displaying different geological and morphological conditions. Both debris flow fans and fluvial fans are present in the studied region, the latest occurring only in quite large basins. Expansion of alluvial fans is greatly determined by the topographic characteristics of receiving valleys. Fan gradient is mainly affected by basin ruggedness conditioning depositional processes, by debris size, and, in some cases, by post-depositional reworking of fan surfaces.
引用
收藏
页码：20 / 27
页数：8
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