@article{3426,
  keywords = {argon-40/argon-39 dating, palaeogeography, Pangea, Proterozoic, tectonic reconstruction, uranium/lead dating, Cuba},
  author = {P.R. Renne and J.M. Mattinson and C.W. Hatten and M. Somin and T.C. Onstott and G. Mill{\'a}n and E. Linares},
  title = {40Ar/39Ar and U-Pb evidence for late proterozoic (Grenville-age) continental crust in north-central Cuba and regional tectonic implications},
  abstract = {Central Cuba is composed of fault-bounded tectonostratigraphic terranes juxtaposed and deformed during plate collision and subsequent transform motion between the Caribbean and North American plates in the Late Mesozoic-Cenozoic. One of these, the Las Villas terrane, contains crystalline basement rocks thought to be pre-Upper Jurassic on stratigraphic grounds. The Socorro Complex occurs in the northwestern Las Villas terrane, and consists of marbles and siliciclastic metasedimentary rocks, and the R{\'\i}o Ca{\~n}a Granite. An 40Ar/39Ar plateau date of 903.5 {\textpm} 7.1 Ma for phlogopite from a marble corroborates previous K-Ar dates from this unit, and establishes unambiguously a Late Proterozoic age for high-grade metamorphism. Discordance of the 40Ar/39Ar age spectrum can be reliably attributed to diffusive Ar loss, which if modeled as an episodic thermal event implies a reheating age that closely coincides with the Late-Cretaceous-Paleogene collision between the Caribbean and North American plates. U-Pb zircon data indicate an intrusive age of 172.4 Ma for the R{\'\i}o Ca{\~n}a Granite, and reveal an inherited zircon component with an age of \~{}900 Ma. Radio-isotopic data from the Socorro Complex display no evidence of Pan-African age thermal overprinting. These observations, combined with constraints provided by published results from nearly Pangean landmasses, suggest that the complex lay substantially to the southwest (present-day co-ordinates) during the Early Paleozoic. Following its genesis in the mid-Mesozoic, the Caribbean plate evidently transported fragments of an extensive Grenville-age belt that spanned the Americas during the Late Proterozoic. {\textcopyright} 1989.},
  year = {1989},
  journal = {Precambrian Research},
  volume = {42},
  number = {3-4},
  pages = {325-341},
  url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0024530354\&doi=10.1016\%2f0301-9268\%2889\%2990017-X\&partnerID=40\&md5=bef8c2168b6fa39198aebb6c26f087d8},
  doi = {10.1016/0301-9268(89)90017-X},
}