@article{fdi:010077818,
  title = {{A} thick crustal block revealed by reconstructions of early {M}ars highlands},
  author = {{B}ouley, {S}. and {K}eane, {J}. {T}. and {B}aratoux, {D}avid and {L}anglais, {B}. and {M}atsuyama, {I}. and {C}ostard, {F}. and {H}ewins, {R}. and {P}ayre, {V}. and {S}autter, {V}. and {S}ejourne, {A}. and {V}anderhaeghe, {O}. and {Z}anda, {B}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he global-scale crustal structure of {M}ars is shaped by impact basins, volcanic provinces, and a hemispheric dichotomy with a thin crust beneath the northern lowlands and a thick crust beneath the southern highlands. {T}he southern highlands are commonly treated as a coherent terrain of ancient crust with a common origin and shared geologic history, plausibly originating from a giant impact(s) or a hemispheric-scale mantle upwelling. {P}revious studies have quantified the contribution of volcanism to this crustal structure; however, the influence of large impacts remains unclear. {H}ere we present reconstructions of the past crustal thickness of {M}ars (about 4.2 {G}yr ago) where the four largest impact basins ({H}ellas, {A}rgyre, {I}sidis and {U}topia) are removed, assuming mass conservation, as well as the main volcanic provinces of {T}harsis and {E}lysium. {O}ur reconstruction shows more subdued crustal thickness variations than at present, although the crustal dichotomy persists. {H}owever, our reconstruction reveals a region of discontinuous patches of thick crust in the southern highlands associated with magnetic and geochemical anomalies. {T}his region, corresponding to {T}erra {C}immeria-{S}irenum, is interpreted as a discrete crustal block. {O}ur findings suggest that the southern highlands are composed of several crustal blocks with different geological histories. {S}uch a complex architecture of the southern highlands is not explained by existing scenarios for crustal formation and evolution. {A} discrete block of thick ancient crust revealed by a crustal reconstruction suggests a complex geologic history for the southern highlands of {M}ars.},
  keywords = {},
  booktitle = {},
  journal = {{N}ature {G}eoscience},
  volume = {13},
  numero = {2},
  pages = {105--109},
  ISSN = {1752-0894},
  year = {2020},
  DOI = {10.1038/s41561-019-0512-6},
  URL = {https://www.documentation.ird.fr/hor/fdi:010077818},
}