Würmian paleoclimate and glaciation in Corsica

科西嘉岛的伍尔米亚古气候和冰川作用

• 批准号: 5438561
• 负责人: Professor Dr. Joachim Kuhlemann
• 金额: --
• 依托单位: Forschungsbereich Geographie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2005
• 资助国家: 德国
• 起止时间: 2004-12-31 至 2005-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5438561?language=en
• 关键词: rmian; paleoclimate; glaciation; Corsica

Systematic investigation of glacial deposits and trimelines in Corsica enabled to map the maximum extent of glaciers during the (late) Würmian. The reconstruction of the ancient equilibrium line altitude (ELA) pattern provides important information on the regional climate during the Würmian maximum glaciation in the nordwestern Mediterranean realm. However, a robust stratigraphic framework for moraine deposits needs to be established. To establish age constraints for the deposition of moraines within the Würmian we aim to determine exposure ages of large boulders rising above Würmian moraines by dating 10Be cosmogenic isotopes. Mesoscale topography appears to control ELA pattern on Corsica, and paricularities of this control such as quantification of funneling effects are potentially applicable in many mountain ranges.

对科西嘉冰川沉积物和三聚体的系统调查使我们能够绘制出（晚）乌尔阶冰川的最大范围。古平衡线高度（ELA）模式的重建为研究地中海西北部地区乌尔阶最大冰期的区域气候提供了重要信息。然而，一个强大的冰碛沉积地层框架需要建立。要建立年龄限制的沉积冰碛物内的乌尔米安，我们的目标是确定暴露年龄的大卵石上升以上乌尔米安冰碛物的10Be宇宙成因同位素测年。中尺度地形似乎控制了科西嘉的ELA模式，这种控制的特殊性，如量化的漏斗效应是潜在的适用于许多山脉。