DEBRIS-MANTLED RECTILINEAR SLOPES IN THE WESTERN SØR RONDANE MOUNTAINS, EAST ANTARCTICA

• Main Authors: イワタ シュウジ, Shuji IWATA
• Format: Report
• Language: English
• Published: Department of Geography, Faculty of Humanities and Social Sciences, Mie University 1987
• Subjects: East Antarctica; Sør-Rondane; Sør Rondane Mountains; Antarc*; Antarctica
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2541; http://id.nii.ac.jp/1291/00002541/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2541&item_no=1&attribute_id=18&file_no=1

In the western part of the Sør Rondane Mountains, slopes in the ice-free area are classified into the following seven categories : cliff or free face, ice-smoothed steep slope, areal-scouring gentle topography, till-covered steep slope, debris-and/or till-covered areal-scouring gentle topography, debris-mantled rectilinear slope, and talus slope. Among them the last two categories are well developed. Debris-mantled rectilinear slopes especially occur on the north-facing slopes in gneiss rock areas. They are characterized by smooth surface, rectilinear profiles with angles of 29°-37°, and thin debris-mantled surface. They are thought to be a kind of the Richter denudation-slope, but intensive joints occurring in the gneiss bedrock control slope configurations.