Camaquã Basin |
Rhyolite |
545 ± 13 |
Rb-Sr |
Almeida et al. (1996Almeida D.P.M., Zerfass H., Basei M.A. 1996. Mineralogia, geoquímica e novas idades para o vulcanismo ácido da Bacia do Camaquã. In: Congresso Brasileiro de Geologia, 39., 1996, Salvador. Annals…, v. 2, p. 19-21.) |
Perau Hill |
Rhyolite |
573 ± 18 |
U-Pb SHRIMP |
Chemale Jr. (2000Chemale Jr. F. 2000. Evolução geológica do Escudo Sul-rio-grandense. In: Holz M., De Ros L.F. (Eds.). Geologia do Rio Grande do Sul. Porto Alegre: CIGO/UFRGS, p. 13-52.) |
Martins Hill |
Qtz-diorite |
550 ± 5 |
Pb-Pb evaporation |
Toniolo et al. (2004Toniolo J.A., Remus M.V.D., Macambira M.J.B., Moura C.A.V. 2004. Metalogênese do Depósito de Cobre Cerro dos Martins, RS, Revisão e Geoquímica Isotópica de Sr, S, O e C. Pesquisas em Geociências, 31(2):41-67. https://doi.org/10.22456/1807-9806.19573 https://doi.org/https://doi.org/10.22456...
) |
Ramada Plateau |
Subvolcanic rhyolite |
549 ± 5 |
U-Pb SHRIMP |
Sommer et al. (2005Sommer C.A., Lima E.F., Nardi L.V.S., Figueiredo A.M.G., Pierosan R. 2005. Potassic and low- and high-Ti mildly alkaline volcanism in the Neoproterozoic Ramada Plateau, southernmost Brazil. Journal of South American Earth Sciences, 18(3-4):237-254. https://doi.org/10.1016/j.jsames.2004.11.003 https://doi.org/https://doi.org/10.1016/...
) |
Ramada Plateau |
Rhyolite |
574 ± 7 |
U-Pb TIMS |
Janikian et al. (2008Janikian L., Almeida R.P., Trindade D., Ferreira R.I., Fragoso-Cesar A.R.S., D'Agrella-Filho M.S., Dantas E.L., Tohver E. 2008. The continental record of Ediacaran volcano-sedimentary successions in southern Brazil and their global implications. Terra Nova, 20(4):259-266. https://doi.org/10.1111/j.1365-3121.2008.00814.x https://doi.org/https://doi.org/10.1111/...
) |
Bugio Hill |
Basalt |
553 ± 5 |
U-Pb LA-ICP-MS |
Almeida et al. (2012Almeida D.P.M., Chemale Jr. F., Machado A. 2012. Late to Post-Orogenic Brasiliano-Pan-African Volcano-Sedimentary Basins in the Dom Feliciano Belt, Southernmost Brazil. In: Al-Juboury A.I. (Ed.). Petrology: New Perspectives and Applications. Rijeka: InTech, v. 1, p. 73-130. https://doi.org/10.5772/25189 https://doi.org/https://doi.org/10.5772/...
) |
Taquarembó Plateau |
Acid tuff |
553 ± 17 |
U-Pb LA-ICP-MS |
Janikian et al. (2012Janikian L., Almeida R.P., Fragoso-Cesar A.R.S., Souza Martins V.T., Dantas E.L., Tohver E., McReath I., D'Agrella-Filho M.S. 2012. Ages (U-Pb SHRIMP and LA ICPMS) and stratigraphic evolution of the Neoproterozoic volcano-sedimentary successions from the extensional Camaquã Basin, Southern Brazil. Gondwana Research, 21(2-3):466-482. https://doi.org/10.1016/j.gr.2011.04.010 https://doi.org/https://doi.org/10.1016/...
) |
Bom Jardim |
Subvolcanic rhyolite |
572 ± 7 |
U-Pb LA-ICP-MS |
Janikian et al. (2012Janikian L., Almeida R.P., Fragoso-Cesar A.R.S., Souza Martins V.T., Dantas E.L., Tohver E., McReath I., D'Agrella-Filho M.S. 2012. Ages (U-Pb SHRIMP and LA ICPMS) and stratigraphic evolution of the Neoproterozoic volcano-sedimentary successions from the extensional Camaquã Basin, Southern Brazil. Gondwana Research, 21(2-3):466-482. https://doi.org/10.1016/j.gr.2011.04.010 https://doi.org/https://doi.org/10.1016/...
) |
Ramada Plateau |
Subvolcanic rhyolite |
562 ± 2 |
U-Pb LA-ICP-MS |
Matté et al. (2016Matté V., Sommer C.A., de Lima E.F., Philipp R.P., Basei M.A.S. 2016. Post-collisional Ediacaran volcanism in oriental Ramada Plateau, southern Brazil. Journal of South American Earth Sciences, 71:201-222. https://doi.org/10.1016/j.jsames.2016.07.015 https://doi.org/https://doi.org/10.1016/...
) |
Ramada Plateau |
Rhyolitic ignimbrite |
560 ± 2 |
U-Pb LA-ICP-MS |
Matté et al. (2016Matté V., Sommer C.A., de Lima E.F., Philipp R.P., Basei M.A.S. 2016. Post-collisional Ediacaran volcanism in oriental Ramada Plateau, southern Brazil. Journal of South American Earth Sciences, 71:201-222. https://doi.org/10.1016/j.jsames.2016.07.015 https://doi.org/https://doi.org/10.1016/...
) |
Ramada Plateau |
Rhyolitic ignimbrite |
561 ± 2 |
U-Pb LA-ICP-MS |
Matté et al. (2016Matté V., Sommer C.A., de Lima E.F., Philipp R.P., Basei M.A.S. 2016. Post-collisional Ediacaran volcanism in oriental Ramada Plateau, southern Brazil. Journal of South American Earth Sciences, 71:201-222. https://doi.org/10.1016/j.jsames.2016.07.015 https://doi.org/https://doi.org/10.1016/...
) |
Ramada Plateau |
Subvolcanic trachyte |
560 ± 14 |
U-Pb LA-ICP-MS |
Matté et al. (2016Matté V., Sommer C.A., de Lima E.F., Philipp R.P., Basei M.A.S. 2016. Post-collisional Ediacaran volcanism in oriental Ramada Plateau, southern Brazil. Journal of South American Earth Sciences, 71:201-222. https://doi.org/10.1016/j.jsames.2016.07.015 https://doi.org/https://doi.org/10.1016/...
) |
Tupanci Hill |
Rhyolite |
579 ± 6 |
U-Pb LA-ICP-MS |
Sommer et al. (2017Sommer C.A., Leitzke F.P., Lima E.F.D., Barreto C.J.S., Lafon J.M., Matté V., Philipp R.P., Conceição R.V., Basei M.Â.S. 2017. Zircon U-Pb geochronology, Sm-Nd and Pb-Pb isotope systematics of Ediacaran post-collisional high-silica Acampamento Velho volcanism at the Tupanci area, NW of the Sul-Rio-Grandense Shield, Brazil. Brazilian Journal of Geology, 47(4):545-560. https://doi.org/10.1590/2317-4889201720170064 https://doi.org/https://doi.org/10.1590/...
) |
Picados Hill |
Rhyolite |
558 ± 39 |
U-Pb LA-ICP-MS |
Sommer et al. (2017Sommer C.A., Leitzke F.P., Lima E.F.D., Barreto C.J.S., Lafon J.M., Matté V., Philipp R.P., Conceição R.V., Basei M.Â.S. 2017. Zircon U-Pb geochronology, Sm-Nd and Pb-Pb isotope systematics of Ediacaran post-collisional high-silica Acampamento Velho volcanism at the Tupanci area, NW of the Sul-Rio-Grandense Shield, Brazil. Brazilian Journal of Geology, 47(4):545-560. https://doi.org/10.1590/2317-4889201720170064 https://doi.org/https://doi.org/10.1590/...
) |
Palma |
Basalt |
572 ± 6 |
U-Pb LA-ICP-MS |
Vedana et al. (2017Vedana L.A., Philipp R.P., Sommer C.A. 2017. Post-collisional basalts of the Acampamento Velho Formation, Camaquã Basin, São Gabriel Terrane, southernmost Brazil. Brazilian Journal of Geology, 47(3):467-489. https://doi.org/10.1590/2317-4889201720170019 https://doi.org/https://doi.org/10.1590/...
) |
Palma |
Andesitic basalt |
563 ± 2 |
U-Pb LA-ICP-MS |
Vedana et al. (2017Vedana L.A., Philipp R.P., Sommer C.A. 2017. Post-collisional basalts of the Acampamento Velho Formation, Camaquã Basin, São Gabriel Terrane, southernmost Brazil. Brazilian Journal of Geology, 47(3):467-489. https://doi.org/10.1590/2317-4889201720170019 https://doi.org/https://doi.org/10.1590/...
) |
Camaquã Mines
|
Trachyte
|
565 ± 5
|
U-Pb LA-ICP-MS
|
This work
|