Introduction to the cartographic and sedimentological study of the coverage of the TAHANAOUT BASIN (HIGH ATLAS, MOROCCO)

Farah Abdelouhed,Ahmed Algouti,Abdellah Algouti,Idir El Konty,Aboubakr Ezziyani,J Abouchabaka,S Bourekkadi,K Slimani,O Omari

doi:10.1051/e3sconf/202123400028

Abstract

This study is carried out on the northern edge of the High Atlas of the MARRAKECH basin. The TAHNAOUT DOUAR SOUR basin belongs to the Atlasic domain which is structured by the Hercynian orogeny, taken up and elevated by the Alpine orogeny, our main goal in this studying is to map the TAHNAOUT DOUAR SOUR basin and to characterize all these geological formations, For this purpose we analysed sedimentary tectonic structures ,made lithostratigraphic sections with description and draw a geological map at scale 1/25000 on a topographic background by used MapInfo platform. As final results, our studying of the TAHANOUT basin consists of two main lithological units: the basement formed by conglomeratic and turbidite deposits (alternating sandstone and pelites), and the lithological unit that forms the cover of the TAHNAOUT basin formed by a red detrital material and, carbonate deposits in some cases depending on the deposition environment, The TAHNAOUT basin is also affected by tectonic activity at the basement and Meso-Cenozoic cover levels [1-2]. Magmatic activity is absent and no trace has been recorded.

Highlights

The high Atlas is a mountain range which extends along 600Km and from 50 to 150Km in width
The TAHNAOUT DOUAR SOUR basin belongs to the Atlasic domain which is structured by the Hercynian orogeny, taken up and elevated by the Alpine orogeny, our main goal in this studying is to map the TAHNAOUT DOUAR SOUR basin and to characterize all these geological formations, For this purpose we analysed sedimentary tectonic structures,made lithostratigraphic sections with description and draw a geological map at scale 1/25000 on a topographic background by used MapInfo platform
Our studying of the TAHANOUT basin consists of two main lithological units: the basement formed by conglomeratic and turbidite deposits, and the lithological unit that forms the cover of the TAHNAOUT basin formed by a red detrital material and, carbonate deposits in some cases depending on the deposition environment, The TAHNAOUT basin is affected by tectonic activity at the basement and Meso-Cenozoic cover levels [1,2]

Summary

Introduction

The high Atlas is a mountain range which extends along 600Km and from 50 to 150Km in width. It culminates in the Djebel Toubkal (4165m). The with Mesozoic and Cenozoic cover and the sub-Atlasic zone extends the depression of the HAOUZ of MARRAKECH. The latter can be subdivided into a high piedmont (800 to 1000m) [5]. Its sedimentary loading is mainly attributed to the Triassic period, some very localized outcrops. In another context, it is related to the Permian [7]. The observed silico-c1astic sedimentation shows an outcrop analogy in terms of simple lithostratigraphic components

Methods

Results

Conclusion