@incollection{fdi:010093200,
  title = {{T}he {W}est {A}frican {C}raton},
  author = {{B}aratoux, {L}enka and {J}essell, {M}.{W}. and {K}ouamelan, {A}.{N}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he 3,000 km long and 2,000 km wide {W}est {A}frican {C}raton exposed as the {L}eo-{M}an {S}hield in the south and the {R}eguibat {S}hield in the north, covered by {T}aoudeni, {I}ullemeden, and {V}olta basins, represents one of the largest outcrops of {P}recambrian orogens worldwide. {B}ased on a review of published geophysical, petrological, geochemical, geochronological, structural, metamorphic, and metallogenic data, we propose an evolving geodynamic scenario covering the period from the {A}rchean (~3.5 {G}a) until the {M}esozoic (~90 {M}a). {T}he {A}rchean domains of both the {L}eo-{M}an and {R}eguibat shield (~3.5-2.6 {G}a) are predominantly built of high-grade gneisses and magmatic rocks interpreted as resulting from hot-{E}arth geodynamic processes. {T}he {P}aleoproterozoic domains (~2.35-1.9 {G}a) are built of juvenile volcanic rocks with some zones (e.g., eastern {G}hana, boundaries between the {A}rchean and {P}aleoproterozoic domains), which show isotopic and geophysical signatures of reworked {A}rchean crust. {A} large amount of data suggest a transitional plate tectonics setting characterized by volcanic arcs, cold metamorphic gradients, and rapid burial and exhumation of supracrustal rocks, important changes in orientation of stress field during the {E}burnean orogeny as well as the occurrence of metal deposits characteristic for volcanic arc settings. {H}owever, some characteristics of hot orogens documenting the transitional character were also revealed: the greenstone-tonalite-trondhjemite-granodiorite-like granitoid domains, deep-seated subvertical craton-scale network of shear zones post-dating the principal accretion period, or the absence of ultrahigh-pressure metamorphism. {T}he {P}an-{A}frican orogenic belts (~0.8-0.58 {G}a) surrounding the {W}est {A}frican {C}raton show clear evidence of subduction/continental collision geodynamic setting. {A}fter the {P}an-{A}frican orogeny, only local mantle-derived magmatism crosscutting older crust was reported in a form of doleritic dykes, kimberlite diatremes, and alkaline intrusions with no evidence for tectonic reworking of the {P}recambrian crust.},
  keywords = {{AFRIQUE} {DE} {L}'{OUEST} ; {TAOUDENI} {BASSIN}},
  booktitle = {{T}he {G}eology of {N}orth {A}frica},
  numero = {},
  pages = {47--68},
  address = {{C}ham},
  publisher = {{S}pringer},
  series = {{R}egional {G}eology {R}eviews},
  year = {2024},
  DOI = {10.1007/978-3-031-48299-1_3},
  ISBN = {978-3-0314-8298-4},
  ISSN = {2364-6438},
  URL = {https://www.documentation.ird.fr/hor/fdi:010093200},
}