publication . Article . 2019

Frasnian (Upper Devonian) integrated facies analysis, magnetic susceptibility and sea-level fluctuations in the NW Algerian Sahara

Mahboubi, Abdessamed; Cornee, Jean-Jacques; Feist, Raimund; Camps, Pierre; Girard, Catherine;
Open Access English
  • Published: 01 Aug 2019
  • Publisher: HAL CCSD
Abstract
<jats:title>Abstract</jats:title><jats:p>Changes in the palaeoenvironment are investigated in two representative Frasnian sections of the NW Algerian Sahara, integrating sedimentology and magnetic susceptibility (MS). The Ben Zireg section is characterized by condensed and ferruginous calcareous deposits; in the South Marhouma section the sedimentation rate is high, dominated by muddy nodular limestones with several hypoxic shale intervals. In both sections, sediments were mostly emplaced on pelagic outer ramps below the limit of storm wave-base, evolving through time from proximal to distal setting. Investigations of the temporal evolution of facies and MS data...
Subjects
free text keywords: dea level, magnetic sustainibility, frasnian, algerian Sahara, facies, [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy, Geology, Sea level, Sedimentology, Conodont, biology.organism_classification, biology, Paleontology, Sediment, Devonian, Pelagic zone, Marine transgression
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publication . Article . 2019

Frasnian (Upper Devonian) integrated facies analysis, magnetic susceptibility and sea-level fluctuations in the NW Algerian Sahara

Mahboubi, Abdessamed; Cornee, Jean-Jacques; Feist, Raimund; Camps, Pierre; Girard, Catherine;