Geology, geochemistry, and geodynamic implications of Ediacaran magmatic rocks of the Zgounder inlier, Siroua window, Anti-Atlas, Morocco

Aouad, Nouamane El; Admou, Hassan; Wafik, Amina; Hafid, Ahmid; Abdel-ali, Kharis; Atif, Youssef; Daafi, Youssef; Chaib, Latifa

doi:10.1007/s12517-021-06593-7

Cited by 3 publications

(1 citation statement)

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“…1), an epithermal mineralization associated with a mega-event during the Ediacaran -Cambrian boundary. This sector has strong analogies with the silver deposits of Imiter (Orguir et al, 1994;Levresse et al, 2004;Tuduri et al, 2006;Levresse et al, 2016Levresse et al, , 2017Tuduri et al, 2018) and Zgounder (Marcoux and Wadjinny 2005;Pelleter et al, 2016;EL Aouad et al, 2021), geologically (felsic volcanism), stratigraphic (Transition zone between Precambrian basement and Paleozoic cover), structural (EW, NE-SW, NW-SE fractures) and geochemical (High content of Ag and Hg).The sectors of Agdim -Ait Elfersi, Imiter and Zgounder could be expressions of the same late Neoproterozoic epithermal event (Gasquet et al, 2005;Bouabdellah and Slack, 2016;Wafik et al, 2017b;Tuduri et al, 2018), which would extend into the Anti-Atlas domain, starting more and more in define what could be a silver-bearing metallogenic province.…”

Section: Regional Comparisonmentioning

confidence: 99%

The Cu-Ag-Pb Polymetallic Mineralization of Agdim-Ait Elfersi Sector, North-Eastern Part of the Saghro Massif, Morocco: Geological Setting, Ore Petrography and Geochemistry

Ousaid

Hahou

Admou

et al. 2022

IGJ

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The Cu-Ag-Pb polymetallic mineralization of the Agdim-Ait Elfersi sector is situated in the eastern Anti Atlas Moroccan belt, the northeastern part of the Saghro inlier. The mineralization is hosted in the volcanic rocks of late Neoproterozoic and the detrital sedimentary rocks of the Lower Cambrian. A network of faults has affected this area; it is a brutalizing deformation with NW-SE, NE-SW, E-W, and NNE-SSW directions. NW-SE and NE-SW structures have a metallogenic significance. This tectonic canvas was used as a target of a mineralization vein with Cu, Ag, and Pb in this area. By combining geological, structural, and metallogenic characteristics, it can be assumed that the Cu-Ag-Pb mineralization of the Agdim-Ait Elfersi sector is linked to two major events. A late Pan-African event linked to the extensional tectonics of the late Neoproterozoic, responsible for the establishment of mineralization at the level of the basement, and then a late Hercynian-Atlasic event, which manifests by the remobilization of metals in NE-SW oriented structures. Geochemical analysis shows the polymetallic character of this mineralization. The high contents of silver and mercury observed indicate the presence of similarities of an Ag-Hg epithermal type of mineralization in this area. Geological context, as well as mineralogical and textural characters of the Agdim-Ait Elfersi sector are reminiscent of epithermal-type mineralization as in the Imiter and Zgounder deposit.

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Section: Regional Comparisonmentioning

confidence: 99%

The Cu-Ag-Pb Polymetallic Mineralization of Agdim-Ait Elfersi Sector, North-Eastern Part of the Saghro Massif, Morocco: Geological Setting, Ore Petrography and Geochemistry

Ousaid

Hahou

Admou

et al. 2022

IGJ

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Identification of potential mineral exploration targets from the interpretation of aeromagnetic data covering the Sirwa region (Central Anti-Atlas, Morocco)

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Wind Tunnel Tests Reveal Aeolian Relocation Processes Related to Land Cover and Surface Characteristics in the Souss Basin, Morocco

Marzen

Kirchhoff

Hssaine

et al. 2022

Land

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The Souss Basin is a dryland environment featuring soil, surface and climatic conditions enhancing processes of wind erosion and mineral and organic dust emissions while subject to frequent grazing, tillage and driving. The fine-grained compacted surfaces are covered by physical and biological crusts and stone cover and are sparsely vegetated by open argan woodland and patchily distributed bushes. Wind-tunnel experiments and soil sampling were conducted on the deeply incised alluvial fans originating from High Atlas and Anti-Atlas mountains to investigate the dryland ecosystem, including the open argan woodland, for information on local wind-induced relocation processes and associated dust emission potential. To investigate possible connections between dryland environmental traits and dust emissions, we used two approaches: (a) surface categories (stone cover, crust and cohesionless sand) and (b) Land Cover Classes (wasteland, woodland and wadi). The results indicate omnipresent dynamic aeolian surface processes on a local to regional scale. Wind impact is a powerful trigger for the on-site relocation of available mineral and organic dust and may be crucial to explain the heterogeneous spatial distribution of soil organic carbon and nutrients associated with mineral fines. Aeolian dust flux showed statistically significant relations with surface categories and, to some extent, with Land Cover Classes. While wind erosion processes are key to understanding on-site sediment and nutrient dynamics between fertile dryland islands, the results also indicate a considerable dust emission potential under increasing climate impact and anthropogenic pressure.

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Geology, geochemistry, and geodynamic implications of Ediacaran magmatic rocks of the Zgounder inlier, Siroua window, Anti-Atlas, Morocco

Cited by 3 publications

References 58 publications

The Cu-Ag-Pb Polymetallic Mineralization of Agdim-Ait Elfersi Sector, North-Eastern Part of the Saghro Massif, Morocco: Geological Setting, Ore Petrography and Geochemistry

The Cu-Ag-Pb Polymetallic Mineralization of Agdim-Ait Elfersi Sector, North-Eastern Part of the Saghro Massif, Morocco: Geological Setting, Ore Petrography and Geochemistry

Identification of potential mineral exploration targets from the interpretation of aeromagnetic data covering the Sirwa region (Central Anti-Atlas, Morocco)

Wind Tunnel Tests Reveal Aeolian Relocation Processes Related to Land Cover and Surface Characteristics in the Souss Basin, Morocco

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