Glacial geomorphology of central and southern Chilotan Archipelago (42.2°S - 43.5°S), northwestern Patagonia

We present a geomorphic map of the glacial landforms associated with the Golfo Corcovado ice lobe in northwestern Patagonia. Built upon prior studies, our map elaborates on the central and southern sectors of Isla Grande de Chiloé and neighboring islands. Through a combination of remote sensing techniques and exhaustive fieldwork, we identified a suite of ice-marginal, subglacial, and glaciofluvial features created by the Golfo Corcovado ice lobe during four maxima within the last glacial cycle, in none of which the ice-front reached the Pacific coast of Isla Grande de Chiloé. Our mapping builds a foundation and provides insights for future interdisciplinary research on the Late Quaternary sequence of glacial and paleoclimatic events in this key sector of northwestern Patagonia.本研究绘制了巴塔哥尼亚西北部科尔科瓦多湾冰舌（Golfo Corcovado ice lobe）相关冰川地貌的地貌图。本研究基于已有研究成果，对奇洛埃大岛（Isla Grande de Chiloé）中部、南部区域及周边岛屿的冰川地貌进行了细化制图。研究结合遥感技术与详尽野外调查，识别出末次冰期旋回内四次冰进盛期期间，科尔科瓦多湾冰舌塑造的一系列冰缘、冰下及冰水地貌特征；且上述四次冰进过程中，冰锋均未抵达奇洛埃大岛的太平洋沿岸地带。本研究的制图工作为巴塔哥尼亚西北部这一关键区域内晚第四纪冰川与古气候事件序列的后续跨学科研究奠定了基础并提供了科学启示。