@article{fdi:010071217,
  title = {{T}he geochronological evolution of the {P}aleoproterozoic {B}aoul{\'e}-{M}ossi domain of the {S}outhern {W}est {A}frican {C}raton},
  author = {{P}arra-{A}vila, {L}. {A}. and {K}emp, {A}. {I}. {S}. and {F}iorentini, {M}. {L}. and {B}elousova, {E}. and {B}aratoux, {L}enka and {B}lock, {S}. and {J}essell, {M}ark and {B}ruguier, {O}. and {B}egg, {G}. {C}. and {M}iller, {J}. and {D}avis, {J}. and {M}c{C}uaig, {T}. {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{G}eneration and emplacement of felsic magmas in the {P}aleoproterozoic {B}aoule-{M}ossi domain, {W}est {A}frican {C}raton does not match the apparent peaks of global crust generation identified between ca. 2900-2600, 1900-1600 and 1200-900 {M}a. {I}n contrast, across the {B}aoule-{M}ossi domain, the emplacement of felsic intrusions ranges from ca. 2300 to 2000 {M}a. {I}t has proven difficult to place this magmatism within a robust geodynamic framework due to the lack of accurate geochronological data from across the {W}est {A}frican {C}raton. {T}he present study addresses this issue by presenting eighty-four new felsic intrusions zircon ion microprobe and {LA}-{ICP}-{MS} {U}-{P}b ages from areas that up until now have not been targeted for geochronology. {T}he new dataset, when fully integrated with existing age data, reveals a craton-wide diachronous geochronological pattern characterized by a magmatic front that migrated westward. {T}his migration proceeded at a rate of 35 km per million years, with an apparent offset of the initiation and cessation of felsic magmatic activity between the east and west of approximately 50 million years. {T}he new data also show that although the entire {B}aoule-{M}ossi domain was subject to continuous magmatic activity for at least 150 million years, this magmatic activity displays a rather different record in the eastern and western portions of the domain. {T}he differences are expressed as a westward migration of the magmatic activity, cessation of activity around ca. 2100 {M}a (easternmost portion) and ca. 2050 {M}a (westernmost portion) and a higher incidence of inherited ages in the westernmost portion when compared to the easternmost region. {I}n addition, the new {U}-{P}b data identify some of the oldest felsic intrusions in the region, including a granite from {B}urkina {F}aso (2265 +/- 17 {M}a) and a diorite porphyry (2216 +/- 5 {M}a) in southern {M}ali. {T}his study also reveals inherited {A}rchean zircon cores from across southern {M}ali. {T}he combination of the new data presented here, along with previously published data, suggests that the {B}aoule-{M}ossi domain formed from the accretion of two major crustal blocks. {T}he {A}rchean inherited ages open a window for further investigation of the interaction between the {A}rchean {K}enema-{M}an and the {P}aleoproterozoic {B}aoule-{M}ossi domains.},
  keywords = {{W}est {A}frican {C}raton ; {P}aleoproterozoic ; {B}aoule-{M}ossi domain ; {U}-{P}b zircon ; dating ; {MALI} ; {BURKINA} {FASO} ; {GHANA} ; {GUINEE} ; {AFRIQUE} {DE} l'{OUEST}},
  booktitle = {},
  journal = {{P}recambrian {R}esearch},
  volume = {300},
  numero = {},
  pages = {1--27},
  ISSN = {0301-9268},
  year = {2017},
  DOI = {10.1016/j.precamres.2017.07.036},
  URL = {https://www.documentation.ird.fr/hor/fdi:010071217},
}