@article{fdi:010091891,
  title = {{P}rovenance of the late {J}urassic to {C}enomanian sedimentary succession of the {A}raripe {B}asin ({NE} {B}razil) and implication for the geodynamic evolution of {W}estern {G}ondwana},
  author = {{R}odrigues, {M}. {D}. and {S}antos, {R}. {V}. and {R}oddaz, {M}. and {D}antas, {E}. {L}. and {L}eisen, {M}athieu},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he separation of {G}ondwana was controlled by preexisting {P}roterozoic structures and by the development of rift aborted basins, of which the {A}raripe {B}asin ({NE} {B}razil) is one of the best examples. {P}revious studies have focused on the presence and provenance of {A}ptian-{A}lbian shallow-marine incursions in the {A}raripe {B}asin but to date, little attention has been given to its paleodrainage evolution during sedimentation stages. {U}nderstanding the paleodrainage evolution is crucial for determining sediment sources and how topographic changes relate to the geodynamic development of the northern part of {S}outh {A}merica during the fragmentation of {G}ondwana, and this study investigates the provenance of {M}esozoic rift and post-rift sedimentary rocks in the {A}raripe {B}asin using a multi-proxy dataset comprising major and trace element concentrations, {S}m-{N}d isotopic composition, and detrital zircon {U}-{P}b ages. {T}he low {E}u/{E}u* ratios (0.3-0.9) and high {T}h/{S}c ratios (>0.64) in the most of analyzed samples suggest a felsic and silicic source. {T}he epsilon {N}d(0) values (-12.3 to -23.7) and {T} {DM} ages (1.68 to 2.55 {G}a) of analyzed samples suggest overall ancient crustal sources. {T}he presence of oval and elongated zircon grains suggests a major contribution of first-cycle transport sediments. {T}he presence of 2.3-1.8 {G}a and 0.63-0.58 {G}a {U}-{P}b zircon ages further indicates the dominant contribution of the {B}orborema {P}rovince influenced by the {B}rasiliano cycle (650-520 {M}a). {T}he low contribution of {T}onian (similar to 940 {M}a) zircons to the {U}-{P}b zircon age distribution of the rift-beginning stage sample associated with published paleocurrent direction suggests sources located in the northern and northwestern terranes of the {B}orborema {P}rovince. {T}he increase of {T}onian (0.9-1.0 {G}a) zircon grains during the rift stage suggests a provenance change with a dominant source in the eastern terranes during the rift stage. {D}uring the post-rift {I} stage, the decrease of 1.2-0.72 {G}a zircon ages suggests a change in the source areas, with the paleodrainage coming from northern {B}orborema {P}rovince, similar to that of the rift- beginning stage. {T}he samples of the post-rift {II} stage exhibit dominant contributions of {P}aleoproterozoic and {N}eoproterozoic {U}-{P}b ages related to the {A}lbian to {C}enomanian uplift of the {B}orborema plateau during the opening of {E}quatorial {A}tlantic {O}cean. {T}ogether with previous published studies, these findings highlight the significant role played by the post-rift continental uplift to the paleodrainage of the northern part of {S}outh {A}merica.},
  keywords = {{P}rovenance ; {Z}ircon {U}-{P}b dating ; {L}ate {J}urassic-{C}enomanian ; {A}raripe {B}asin ; {W}estern {G}ondwana ; {BRESIL}},
  booktitle = {},
  journal = {{S}edimentary {G}eology},
  volume = {470},
  numero = {},
  pages = {106680 [19 p.]},
  ISSN = {0037-0738},
  year = {2024},
  DOI = {10.1016/j.sedgeo.2024.106680},
  URL = {https://www.documentation.ird.fr/hor/fdi:010091891},
}