Landslides and climate change in the Italian Dolomites since the Late glacial
- 作者：Soldati ; Mauro ; Corsini ; Alessandro ; Pasuto ; Alessandro
- 关键词：Landslide ; Climate change ; Late glacial ; Holocene ; Italian Dolomites
- 刊名：Catena
- 出版年：2004
- 期刊代码：11_03418162
- 类别：ear
- 出版时间：January 20, 2004
- 卷：55
- 期：2
- 页码：141-161
- 文件大小：822 K
摘要
The paper deals with the relationship between the temporal occurrence of landslides and climatic changes in the Italian Dolomites since the Late glacial. After an introduction on the state of the art, with particular reference to the Alpine region, the results of recent investigations in the two study sites are illustrated. At Cortina d'Ampezzo, several landslides were dated mainly by the radiocarbon method. The most ancient landslide event there involved large rock slides, which affected the dolomitic slopes following the withdrawal of glaciers after the Last Glacial Maximum (LGM), and also slides and flows mainly occurring in pelitic materials of the valley floors (from 13,000 to 10,000 cal BP). A later series of flows occurred between 5500 and 2500 cal BP. In the Upper Badia Valley (Alta Badia), the most ancient events go back to 10,000 and 9000 cal BP, and correspond with earth flows that followed vast rotational slides affecting the bedrock up to a depth of about 50 m. More recent earth flows, involving more modest amounts of material, took place between 6500 and 2300 cal BP.