T252 Landslide Inventories, Databases, Hazard Maps, Risk Analysis, and Beyond (Posters)

Tuesday, 24 October 2017
9:00 AM - 6:30 PM
Halls 4EF

BUT IT LOOKS LIKE A LANDSLIDE IN LIDAR! GEOLOGIC MAPPING OF PUGET LOWLAND GLACIAL RECESSIONAL LANDFORMS ALONG HOOD CANAL USING LIDAR

Paper number: T252-8
Program: Technical Sessions
Time: 9:00 AM – 6:30 PM

Authors

Abstract

Previous geologic mapping and landslide inventories mapped benches along Hood Canal and adjacent drainages as landslides. Recently published 1:24,000-scale lidar based geologic mapping suggests many of these landforms may be the result of ice-marginal drainages and recessional lake shorelines.

Lidar data highlights benches with similar elevations and field observations find sorted sediment interpreted to be shoreline or fluvial deposits on these surfaces, furthermore the strata below these landforms are undeformed. Combining the elevation data and field observations suggests these landforms may be result of ice-marginal drainages and recessional lake shores.

Geological Society of America Abstracts with Programs. Vol. 49, No. 6

doi: 10.1130/abs/2017AM-303585

© Copyright 2017 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.