In this study, a synthetic lithostratigraphic profile was established in the Permian basin of M’t... more In this study, a synthetic lithostratigraphic profile was established in the Permian basin of M’tal. It is made of a detrital series of approximately 450 m. Two formations could be identified: A basal conglomeratic with abundant matrix (Ouled Mira formation) overlayed by a sandstone-silts formation (Bir Enhass formation). A systematic analysis of the synsedimentary fracturing reveals that this fault network and the opening of the M’tal basin was activated during East-Western extension.
A large collection of vertebrate coprolites derives from a debris flow conglomerate in the Upper ... more A large collection of vertebrate coprolites derives from a debris flow conglomerate in the Upper Triassic Irohalene Member (Carnian) of the Timezgadiouine Formation, northern Argana Basin, Morocco. The coprolites are classified into 14 different morphotypes (MA to MN) based on their size, shape, and surface texture that are divided into three groups: striated coprolites; spiral and scroll-like coprolites; and non-spiral coprolites lacking striations. The great variety of morphotypes suggests the coprolites correspond to a variety of terrestrial and aquatic carnivorous producers. The carnivore coprolites lithified rapidly and were deposited in a high-energy sheetflood. The majority of the coprolites were produced by semi-aquatic and terrestrial tetrapods, with a small percentage produced by fish. The occurrence of Dicynodontocopros, common Alococopros, and some heteropolar forms with affinities to Heteropolacopros, are consistent with a late Carnian age for the Irohalene Member. The ...
The report for 2016 and 2017 highlights already published results obtained from recent studies in... more The report for 2016 and 2017 highlights already published results obtained from recent studies in China, Russia, Germany, Czech Republic, Italy, France, Spain, Jordan, North America, Morocco and South Africa by the different regional working groups to draw attention to these publications.
The Jebilet Massif (Western Meseta, Morocco) consists of Hercynian polyphase deformed basement ro... more The Jebilet Massif (Western Meseta, Morocco) consists of Hercynian polyphase deformed basement rocks that are, locally, unconformably overlain by a thick series of Permian siliciclastic sediments. New tectonic and tectono-sedimentary analyses offer the opportunity to propose a refined chronology of late Hercynian events of the study area and to specify the sedimentary environment and geodynamic context of related Permian deposits. In addition to the primary Hercynian structuring, three tectonic episodes are distinguished. (1) A compressive episode of Late Hercynian pre-Permian deposits is expressed by kink bands and chevron folds associated with irregular spaced cleavage. The orientation of the kink bands, their geometry and concentration along the regional faults are in favor of a compression episode in NNE-SSW direction. This deformation is ended by the Permian deposits and also marked by reworked pre-Permian deposits with kink-bands in the basal conglomerates of these deposits. (2) The early Permian tectonic episode is responsible for the opening of N-S striking intramontane basins (Koudiat El Hamra-Haiane, KH-H, and Oulad Maachou, OM) due to E-W extension. These basins are formed as submeridian graben and hemi-graben, delimited by normal faults that separate Permian red-beds from the surrounding Paleozoic basement. The sedimentary basin fillings are mainly represented by alluvial deposits with a late early Permian (Artinskian) to middle Permian (Capitanian) ichnofauna. (3) A post-Permian compressive episode, dated to the upper Triassic-pre-Kimmeridgian, is indicated by folded Permian deposits of KH-H and OM (fold axes striking N0°–N20°), as well as reverse faults representing reactivated submeridian normal faults.
Late Pennsylvanian (Stephanian A/B; Kasimovian) fossil sites in the Oued Issene Formation of the ... more Late Pennsylvanian (Stephanian A/B; Kasimovian) fossil sites in the Oued Issene Formation of the Souss basin (Ida OuZiki sub-basin) near Tanamert village, High Atlas Mountains, Morocco, provide evidence for a relatively diverse entomofauna including Blattoidea, Blattinopsidae, ?Orthoptera, ?Hemiptera, Monura (Dasyleptidae), and Grylloblattida. The flora consist of mesophilous and xerophilous elements as the callipterids Autunia cf. conferta and Dichophyllum moorei, the seed ferns Odontopteris and Neuropteris, the ginkgophyte Sphenobaiera, and the lycopod cone scale Lepidostrobophyllum; dominating are the conifers Otovicia hypnoides, Ernestiodendron filiciforme, Dicranophyllum, and Cordaites. The depositional environment is interpreted as an extended low gradient alluvial braid plain transitional to a lacustrine flood basin.
In this study, a synthetic lithostratigraphic profile was established in the Permian basin of M’t... more In this study, a synthetic lithostratigraphic profile was established in the Permian basin of M’tal. It is made of a detrital series of approximately 450 m. Two formations could be identified: A basal conglomeratic with abundant matrix (Ouled Mira formation) overlayed by a sandstone-silts formation (Bir Enhass formation). A systematic analysis of the synsedimentary fracturing reveals that this fault network and the opening of the M’tal basin was activated during East-Western extension.
A large collection of vertebrate coprolites derives from a debris flow conglomerate in the Upper ... more A large collection of vertebrate coprolites derives from a debris flow conglomerate in the Upper Triassic Irohalene Member (Carnian) of the Timezgadiouine Formation, northern Argana Basin, Morocco. The coprolites are classified into 14 different morphotypes (MA to MN) based on their size, shape, and surface texture that are divided into three groups: striated coprolites; spiral and scroll-like coprolites; and non-spiral coprolites lacking striations. The great variety of morphotypes suggests the coprolites correspond to a variety of terrestrial and aquatic carnivorous producers. The carnivore coprolites lithified rapidly and were deposited in a high-energy sheetflood. The majority of the coprolites were produced by semi-aquatic and terrestrial tetrapods, with a small percentage produced by fish. The occurrence of Dicynodontocopros, common Alococopros, and some heteropolar forms with affinities to Heteropolacopros, are consistent with a late Carnian age for the Irohalene Member. The ...
The report for 2016 and 2017 highlights already published results obtained from recent studies in... more The report for 2016 and 2017 highlights already published results obtained from recent studies in China, Russia, Germany, Czech Republic, Italy, France, Spain, Jordan, North America, Morocco and South Africa by the different regional working groups to draw attention to these publications.
The Jebilet Massif (Western Meseta, Morocco) consists of Hercynian polyphase deformed basement ro... more The Jebilet Massif (Western Meseta, Morocco) consists of Hercynian polyphase deformed basement rocks that are, locally, unconformably overlain by a thick series of Permian siliciclastic sediments. New tectonic and tectono-sedimentary analyses offer the opportunity to propose a refined chronology of late Hercynian events of the study area and to specify the sedimentary environment and geodynamic context of related Permian deposits. In addition to the primary Hercynian structuring, three tectonic episodes are distinguished. (1) A compressive episode of Late Hercynian pre-Permian deposits is expressed by kink bands and chevron folds associated with irregular spaced cleavage. The orientation of the kink bands, their geometry and concentration along the regional faults are in favor of a compression episode in NNE-SSW direction. This deformation is ended by the Permian deposits and also marked by reworked pre-Permian deposits with kink-bands in the basal conglomerates of these deposits. (2) The early Permian tectonic episode is responsible for the opening of N-S striking intramontane basins (Koudiat El Hamra-Haiane, KH-H, and Oulad Maachou, OM) due to E-W extension. These basins are formed as submeridian graben and hemi-graben, delimited by normal faults that separate Permian red-beds from the surrounding Paleozoic basement. The sedimentary basin fillings are mainly represented by alluvial deposits with a late early Permian (Artinskian) to middle Permian (Capitanian) ichnofauna. (3) A post-Permian compressive episode, dated to the upper Triassic-pre-Kimmeridgian, is indicated by folded Permian deposits of KH-H and OM (fold axes striking N0°–N20°), as well as reverse faults representing reactivated submeridian normal faults.
Late Pennsylvanian (Stephanian A/B; Kasimovian) fossil sites in the Oued Issene Formation of the ... more Late Pennsylvanian (Stephanian A/B; Kasimovian) fossil sites in the Oued Issene Formation of the Souss basin (Ida OuZiki sub-basin) near Tanamert village, High Atlas Mountains, Morocco, provide evidence for a relatively diverse entomofauna including Blattoidea, Blattinopsidae, ?Orthoptera, ?Hemiptera, Monura (Dasyleptidae), and Grylloblattida. The flora consist of mesophilous and xerophilous elements as the callipterids Autunia cf. conferta and Dichophyllum moorei, the seed ferns Odontopteris and Neuropteris, the ginkgophyte Sphenobaiera, and the lycopod cone scale Lepidostrobophyllum; dominating are the conifers Otovicia hypnoides, Ernestiodendron filiciforme, Dicranophyllum, and Cordaites. The depositional environment is interpreted as an extended low gradient alluvial braid plain transitional to a lacustrine flood basin.
Uploads
Papers by Hafid Saber