A5062299885- Geological and Geophysical Studies Worldwide
- Paleontology and Stratigraphy of Fossils
- Geological formations and processes
- Geology and Paleoclimatology Research
- Therapeutic Uses of Natural Elements
- earthquake and tectonic studies
- Paleontology and Evolutionary Biology
- Geological and Geochemical Analysis
- Mediterranean and Iberian flora and fauna
- Evolution and Paleontology Studies
- Karst Systems and Hydrogeology
- Ichthyology and Marine Biology
- Archaeological and Geological Studies
- Archaeological and Historical Studies
- Hydrology and Sediment Transport Processes
- Landslides and related hazards
- Marine Biology and Ecology Research
- Hydrocarbon exploration and reservoir analysis
- Geological Formations and Processes Exploration
- Water management and technologies
- Geochemistry and Elemental Analysis
- Geotechnical Engineering and Analysis
Université d'Oran 2
1997-2024
University of Oran 2 Mohamed Ben Ahmed
2024
Université Oran 1 Ahmed Ben Bella
2003-2023
Institut des Sciences de la Terre
2000-2015
Abstract The focus of this note is an ichnological study the “Argiles de Saïda” formation (Callovo-Oxfordian) in Djebel Brame, a region representing eastern extremity Tlemcenian domain and marked by rhythmic clay-sandstone sedimentation. From lithostratigraphic viewpoint, composed two units with distinct sequential organization trace fossil content. These deposits are characterized weak to moderate bioturbation, eleven ichnogenera were found: Bergaueria, Chondrites, Diplichnites,...
Abstract Meter-scale shallowing-upward cycles are recorded in many carbonate successions around the world. It is often difficult to recognize whether they represent autocycles, formed through intrinsic controls, or allocycles, resulting from orbital forcing tectonic movements, both. Here, we review criteria used identification of two types cyclicity and apply them newly described lower Pliensbachian outcrops Traras Mountains, northwestern Algeria. Throughout investigation six sections,...
Abstract The sequence stratigraphical study of the Viséan Formations shows importance Ben‐Zireg Trough for structural development Béchar Basin. approach has allowed to decipher systems tracts, which have filled accommodation space under tectono‐eustatic control. A deep sea fan recorded by first flysch‐type deposits transported submarine canyons was followed a prograding lowstand wedge in flysch with olistostromes, transgressive system tract (TST) identified without olistostrome, and...
The “Argiles de Saida” Formation (Late Jurassic) in the tlemcenian domain (Takhemaret, Algeria) : biostratigraphical, ichnological and sedimentological data.- study area is located outskirt to Takhemaret village, constituting part of Saida Mountains, eastern segment (northwest Algeria). In this area, subdivided into three lithostratigraphic units lower clay-sandstone unit, clay-carbonate unit upper unit. They were previously assigned Callovian-Oxfordian. However, newly discovered ammonites...
[fr] Dans les Monts des Ksour (Atlas saharien occidental), le passage cénomanien-turonien a été étudié sur plan stratigraphique et géochimique à partir de deux coupes: Djebel M’daouer Chebket Tamednaïa. ces coupes, comme la plupart plates-formes carbonatées peu profondes du domaine sud-téthysien, faciès anoxique limite matérialisé par dépôts “black-shales“ est absent. En plus, rareté données biostratigraphiques rend difficile l’établissement d’une biozonation détaillée pour coupes étudiées....
The vertical range of the brachiopods in Ouarsenis depends closely on sedimentary evolution and local geodynamic controls. During Late Sinemurian Early Carixian, several Zeilleriid coquinas have accumulated a shallow carbonate platform. These are well levelled biochronologic scale their age is confirmed by discovery an ammonite (Gemmellaroceras sp.). Aborted reefs were built laterally following tectonic movements. has happened during relative sea-level rise. appeared at beginning disappeared...