scholarly journals Comment on “Tectonic and environmental factors controlling on the evolution of Oligo-Miocene shallow marine carbonate factories along a tropical SE Circum-Caribbean” by Silva-Tamayo et al. (2017)

2019 ◽  
Vol 91 ◽  
pp. 394-396 ◽  
Author(s):  
E. Albert-Villanueva ◽  
T. Bover-Arnal ◽  
C. Ferràndez-Cañadell ◽  
R. Salas
Sedimentology ◽  
2021 ◽  
Author(s):  
Thomas Mann ◽  
André Wizemann ◽  
Marleen Stuhr ◽  
Yannis Kappelmann ◽  
Alexander Janßen ◽  
...  

Author(s):  
Paulo de Tarso Amorin Castro ◽  
Marcel Auguste Dardenne

In the southwest part of São Francisco Craton occur neoproterozoic metasedimentary rocks of the Bambuí Group.  Among these rocks the Samburá Conglomerate outcrops nearby the external (eastern) region of the southernmost part of Brasilia Thrust Belt.  Sedimentological studies carried on these rocks at Serra da Pimenta region reveals that they belong to a fan delta system developed at the toes of thrust fault escarpments of Brasilia Thrust Belt. Petrographic analysis of clasts of Samburá Conglomerate pointed to Canastra Group and Pium-í greenstone belt rocks of Serra da Pimenta mountains as source rocks. The fan delta deposits are rested above shallow marine carbonate rocks of the base of Bambuí Group.


2017 ◽  
Vol 43 (2) ◽  
pp. 793
Author(s):  
E. Zoumpoulis ◽  
F. Pomoni-Papaioannou ◽  
A. Zelilidis

The shallow-marine carbonate sequence of Sami (Kefallinia isl. Fig. 1) is a part of the Upper Cretaceous carbonate platform of the Paxi zone. Detailed lithostratigraphic and microfacies analysis of that sequence revealed clear periodicities and cyclicity. The high-resolution stratigraphic analysis has shown a number of lithofacies organized in groups (lithofacies associations), suggesting, on the whole, sedimentary environments ranging from lagoonal to peritidal context. The vertical arrangement of these lithofacies allowed the identification of a cyclic recurrence of the depositional and early diagenetic features, including a meteoric overprint on top of the elementary cycles. The cycles exhibit a shallowing upward trend from shallow subtidal to inter-supratidal and hypersaline facies, in a warm shallow marine environment.


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