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Provenance analysis of the Late Ediacaran basins from SW Iberia (Serie Negra Su...
Chichorro, Martin; Solá, Rita; Pereira, Manuel Francisco; Hofmann, M.; Linnemann, U.; Gerdes, A.; Medina, Jorge; Lopes, LuísThis study makes a comparison of the populations of detrital zircon from Late Ediacaran greywackes of the Ossa-Morena Zone (OMZ) and the southern domains of the Central Iberian Zone (S-CIZ). The results obtained reveal that the main difference between the age spectra of both populations of detrital zircon is the Neoproterozoic, in particularly the Cryogenian grains. Our new data suggest that deposition in both ...
Provenance of Cambro-Ordovician siliciclastic rocks of the SW Iberia: insights ...
Solá, Rita; Chichorro, Martim; Pereira, Manuel Francisco; Hofmann, M.; Linnemann, U.; Gerdes, A.; Medina, Jorge; Lopes, LuísThis study makes a comparison between the populations of detrital zircon of the Cambrian sandstones from the Ossa-Morena Zone (OMZ) and the Ordovician quartzites from the southern domains of the Central Iberian Zone (S-CIZ) in order to identify the sources during development of North Gondwana basins (SW Iberia). The U-Pb results obtained for the Lower Cambrian sandstones of the OMZ show a remarkable similarity ...
North-Gondwana assembly, break-up and paleogeography: U–Pb isotope evidence fro...
Pereira, M.F.; Solá, A.R.; Chichorro, M.; Lopes, L.; Gerdes, A.; Silva, J.B.The Estremoz Anticline in the Ossa-Morena Zone (SW Iberia) includes upper Ediacaran detrital rocks uncon- formably overlain by lower Cambrian detrital and carbonate rocks. The spectra of detrital zircon U–Pb ages dominated by Cryogenian and Ediacaran ages (with a typical gap in Mesoproterozoic ages) of the upper Edi- acaran greywackes and lower Cambrian arkosic sandstones indicate provenance from sources placed...
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