@article{fdi:010086637,
  title = {{M}ultiple plume events in the genesis of the peri-{C}aribbean {C}retaceous oceanic plateau province},
  author = {{L}apierre, {H}. and {B}osch, {D}. and {D}upuis, {V}. and {P}olve, {M}. and {M}aury, {R}. and {H}ernandez, {J}. and {M}oni{\'e}, {P}. and {Y}eghicheyan, {D}. and {J}aillard, {E}tienne and {T}ardy, {M}. and {L}epinay de, {B}.{M}. and {M}amberti, {M}. and {D}esmet, {A}. and {K}eller, {F}. and {S}enebier, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he oceanic crust fragments exposed in central {A}merica, in north-western {S}outh {A}merica, and in the {C}aribbean islands have been considered to represent accreted remnants of the {C}aribbean-{C}olombian {O}ceanic {P}lateau ({CCOP}). {O}n the basis of trace element and {N}d, {S}r, and {P}b isotopic compositions we infer that cumulate rocks, basalts, and diabases from coastal {E}cuador have a different source than the basalts from the {D}ominican {R}epublic. {T}he latter suite includes the 86 {M}a basalts of the {D}uarte {C}omplex which are light rare earth element ({REE}) -enriched and display (relative to normal mid-ocean ridge basalts, {NMORB}) moderate enrichments in large ion lithophile elements, together with high {N}b, {T}a, {P}b, and low {T}h contents. {M}oreover, they exhibit a rather restricted range of {N}d and {P}b isotopic ratios consistent with their derivation from an ocean island-type mantle source, the composition of which includes the {HIMU} (high {U}-238/{P}b-204) component characteristic of the {G}alapagos hotspot. {I}n contrast, the 123 {M}a {E}cuadorian oceanic rocks have flat {REE} patterns and (relative to {NMORB}) are depleted in {Z}r, {H}f, {T}h, and {U}. {M}oreover, they show a wide range of {N}d and {P}b isotopic ratios intermediate between those of ocean island basalts and {NMORB}. {I}t is unlikely, on geochemical grounds, that the plume source of the {E}cuadorian fragments was similar to that of the {G}alapagos. {I}n addition, because of the {NNE} motion of the {F}arallon plate during the {E}arly {C}retaceous, the {E}cuadorian oceanic plateau fragments could not have been derived from the {G}alapagos hotspot but were likely formed at a ridge-centered or near-ridge hotspot somewhere in the {SE} {P}acific.},
  keywords = {{DOMINICAINE} {REPUBLIQUE} ; {COSTA} {RICA} ; {EQUATEUR} ; {MEXIQUE} ; {PACIFIQUE} ; {GORGONA} {ILE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {S}olid {E}arth},
  volume = {105},
  numero = {{B}4},
  pages = {8403--8421},
  ISSN = {2169-9313},
  year = {2000},
  DOI = {10.1029/1998{JB}900091},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086637},
}