An analysis of suspected neoglacial ice-cored impounding Carver Lake, South Sister region, High Cascades, Oregon

• Main Author: Rector, Michel L.
• Other Authors: Rosenfeld, Charles L., Geography
• Format: Other/Unknown Material
• Language: English; unknown
• Published: Oregon State University
• Subjects: Carver Lake; ice core
• Online Access: https://ir.library.oregonstate.edu/concern/graduate_projects/xs55mc73m

The purpose of this study is to determine if the ntoraines damming proglacial Carver Lake are ice-cored. The methodology to be employed consists of interpretation of aerial photographs and field observations. The results of these studies will be compared. to past research of known ice-cored moraines in other regions of the world. This study was prompted by research done by the United States Geological Survey indicating that there may be a potential for flood hazard to the town of Sisters, Oregon should this morainal dam fail (Laenen, et al. 1987) Specifically, this paper discusses the results of three months of field study which the following procedures were completed: 1) The Neoglacial geornorphology surrounding Carver lake was mapped; 2) ground data was collected to verify aerial photographic interpretation; 3) test pits were excavated to detect the existence of an ice-core in the terminal moraines impounding Carver Lake. It was determined from this research that these moraines did have ice-cores.