RSS Cientifico geral Devonian sedimentation in the SW boundary of the Ossa-Morena Zone: state of art and paleogeography

  • Criador do t贸pico RCAAP Rss Feeder
  • Start date
R

RCAAP Rss Feeder

Guest
Breve resumo:
Abstract: The Devonian sedimentary record of the Ossa-Morena Zone is scarce. In its southwestern domains, the Odivelas Limestone and correlatable units represent the single evidence of latest Early Devonian to Middle Devonian (possibly into Frasnian)sedimentation in this area. Reefal and perireefal sediments are frequently, but not always, associated to coeval volcanic rocksthat probably supported atoll-like systems on the top of volcanic edifices. The northernmost occurrences are spatially associated with mississippian volcanic-sedimentary complexes. Their geometrical relation is still unclear, the limestones are possibly embedded as olitoliths, but can also be tectonically imbricated or simply reflecting draping of younger sediments around and above older (Devonian) sea-bed topography.​



Info Adicional:
Abstract: The Devonian sedimentary record of the Ossa-Morena Zone is scarce. In its southwestern domains, the Odivelas Limestone and correlatable units represent the single evidence of latest Early Devonian to Middle Devonian (possibly into Frasnian)sedimentation in this area. Reefal and perireefal sediments are frequently, but not always, associated to coeval volcanic rocksthat probably supported atoll-like systems on the top of volcanic edifices. The northernmost occurrences are spatially associated with mississippian volcanic-sedimentary complexes. Their geometrical relation is still unclear, the limestones are possibly embedded as olitoliths, but can also be tectonically imbricated or simply reflecting draping of younger sediments around and above older (Devonian) sea-bed topography.



Autor:




Clica para continuares a ler...
 
Voltar
Topo