@article{fdi:010066072,
  title = {{T}he {W}assa deposit : a poly-deformed orogenic gold system in southwest {G}hana. {I}mplications for regional exploration},
  author = {{P}errouty, {S}. and {J}essell, {M}ark and {B}ourassa, {Y}. and {M}iller, {J}. and {A}pau, {D}. and {S}iebenaller, {L}uc and {V}elasquez, {G}. and {B}aratoux, {L}enka and {A}illeres, {L}. and {B}eziat, {D}. and {S}alvi, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {A}shanti greenstone belt in southwest {G}hana hosts many gold deposits distinguished by different timing and structural contexts. {T}his study investigates the evolution of the {W}assa system by integrating field and geophysical observations. {T}his 4 million ounces (past production and current resources) gold deposit is interpreted to represent the oldest gold mineralization event in {W}est {A}frica with gold-bearing pyrites aligned and stretched within the {S}i ductile fabric. {M}ineralized quartz-carbonate veins were strongly deformed during the {D}1 deformation event. {T}hree additional folding events are characterized by hectometer-scale tight to isoclinal folds, by a kilometer-scale synform fold centered on the mine and by a late recumbent metric-scale folds. {B}ecause of its early timing, the {W}assa system represents a new poly-deformed deposit type in {W}est {A}frica and highlights a potential for new discoveries in the underexplored meta-volcanic and meta-sedimentary {S}efwi {G}roup. {T}iming of the gold mineralization at the {W}assa mine makes this deposit type a possible candidate for the source of the gold contained in the {T}arkwa paleoplacer.},
  keywords = {{W}assa ; {B}irimian ; {T}arkwaian ; {E}burnean ; {E}oeburnean ; {A}shanti {B}elt ; {GHANA}},
  booktitle = {{T}ectonics, mineralisation and regolith evolution of the {W}est {A}frican {C}raton},
  journal = {{J}ournal of {A}frican {E}arth {S}ciences},
  volume = {112, part {B}},
  numero = {{N}o sp{\'e}cial},
  pages = {536--547},
  ISSN = {1464-343{X}},
  year = {2015},
  DOI = {10.1016/j.jafrearsci.2015.03.003},
  URL = {https://www.documentation.ird.fr/hor/fdi:010066072},
}