GEOSPATIAL MODELING FOR KARSTIC COLLAPSE PROBABILITY MAP IN THE DOUKKALA BASIN (MOROCCO)

  • YOUNESS AHMED LAAZIZ Laboratoire de Géoscience et Technique de L’environnement Faculté Des Sciences, El-Jadida, Morocco
  • ABDELATIF SOUHEL Laboratoire de Géoscience et Technique de L’environnement Faculté Des Sciences, El-Jadida, Morocco
  • MOHAMED LAYLMAN DépartementGéomatiques et Ingénierie Topographique, Institut Agronomique et Vétérinaire Hassan II Rabat, Morocco
  • MOHAMMED ELAABASI GeoMAPUniversityMohmmedV Rabat, Morocco
  • FATIMA ELBCHARI CadiAyyadUniversity, Poly-disciplinary Faculty, Safi, Morocco

Abstract

A significant proportion of the Doukkala (Western Meseta of Morocco) is composed of limestone. This rock is susceptible to a rapid evolution to karst in some particular environment and, hence, a collapse may occur in such a karstic feature. The aim of this study is to develop a methodology that can predict where future sinkhole collapse will occur in the Doukkala basin and establish a map with areas more susceptible to this phenomenon. This document could be a useful tool for decision makers.The data was integrated into a geographical information system (GIS). Combining the most important factors that play a role in the dissolution process of rock; lithology, geomorphology and hydrology enables us to delineate areas of low, moderate and high risk.

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Published
2016-12-15
How to Cite
LAAZIZ, YOUNESS AHMED et al. GEOSPATIAL MODELING FOR KARSTIC COLLAPSE PROBABILITY MAP IN THE DOUKKALA BASIN (MOROCCO). Arabian Journal of Earth Sciences, [S.l.], v. 3, n. 2, p. 6-16, dec. 2016. ISSN 2409-4730. Available at: <http://asrongo.org/journals/index.php/AJES/article/view/38>. Date accessed: 17 june 2019.

Keywords

Sinkholes; Collapse; Susceptibility Map; GIS; Doukkala