Please use this identifier to cite or link to this item:

Title: From Geological to Lithological Maps – Exploring Differential Erosion to Improve Lithological Information for Landslide Susceptibility Assessment
Authors: Oliveira, Sérgio C.
Melo, Raquel
Marques, Fernando
Fonseca, Rute
Pimenta, Rita
Zêzere, José L.
Keywords: geological map
lithological map
cartographic information
Issue Date: 2022
Publisher: International Workshop on NATURAL HAZARDS — NatHaz’22
Abstract: For landslide susceptibility assessment, lithology information is often extrapolated from official geological maps, which do not allow a direct spatial transformation into a detailed lithological map. To overcome this limitation, a study was made for the Grande da Pipa River basin, Portugal, to detail the existing geological maps, keeping the units' age sequence but separating the main lithological types. In addition, it explored supplementary cartographic information (e.g., slope angle) to infer the boundaries of lithological units using differential erosion and associated morphological interpretation criteria. Finally, the lithological map produced was compared with the official geological map using sensitive analysis and different partitions of a historical landslide inventory. The results consistently record improved predictive capacity for landslide susceptibility if more detailed lithological maps are used instead of the commonly available geological maps.
Type: lecture
Appears in Collections:GEO - Comunicações - Em Congressos Científicos Internacionais

Files in This Item:

File Description SizeFormat
NatHaz22_Oliveira_etal.pdf114.1 kBAdobe PDFView/Open
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Dspace Dspace
DSpace Software, version 1.6.2 Copyright © 2002-2008 MIT and Hewlett-Packard - Feedback
UEvora B-On Curriculum DeGois