论文部分内容阅读
Geomorphology of Avio Ualley(Adamello Group).The authors have carried out an investigation that led to the production of a geomorphological map and itsrelated explanatory notes.The present physionomy of the valley,mainly consisting of intrusive magmaticlithotypes.is related to various morphogenetic agents:those that acted for a longer time and more deeplyare the glacial and periglacial ones.Typical erosional and depositional glacial forms characterize the middleand high valley.Morphological,stratigraphical and textural observations regarding the weathered state ofthe deposits and the degree of lichenization.the various morainic deposits have been tentatively differentia-ted.The moraines from the last century are particulary abundant and thickly developed:in some places theycover deposits probably ascribable to older stages of the《small glaciation》.Also the moraines ascribable tothe late-glacial stages are widely represented.Landforms related to periglacial environments such as rock-glaciers,protalus rampart,etc..have been recognized.Particular landforms related to gravity and favouredby the metamorphic-type substratum are recognizable in the lower valley.
Geomorphology of Avio Ualley (Adamello Group). The authors have carried out an investigation that led to the production of a geomorphological map and its related explanatory notes. The present physionomy of the valley, primarily consisting of intrusive magmaticlithotypes.is related to various morphogenetic agents: those that acted for a longer time and more deeplyare the glacial and periglacial ones.Typical erosional and depositional glacial forms characterize the middle and high valley .Morphological, stratigraphical and textural observations regarding the weathered state ofthe deposits and the degree of lichenization. the various morainic deposits have been tentatively differentia-ted. the moraines from the last century are particulary abundant and thickly developed: in some places they cover deposits probably ascribable to older stages of the “small glaciation.” Also the moraines ascribable tothe late-glacial stages are greatly represented. Landforms related to periglacial environments such as rock -glaciers, protalus rampart, etc..have been recognized. Particular landforms related to gravity and favored by the metamorphic-type substratum are recognizable in the lower valley.