Rift Lake Stratigraphy of the Lagoa Feia Formation, Campos Basin, Brazil

Microbialitic deposits of the Yacoraite Formation, NW Argentina: distribution, environments, paleoecology, and economic implications

“…A good example of these systems is the Brazilian pre-salt, with important reservoirs in mostly or partially (according to different interpretations) microbialitic and bioclastic carbonate facies, deposited in lacustrine to shallow marine environments during the Sag phase (e.g., Rangel and Carminatti 2000, Thompson et al 2015, Abelha and Petersohn 2018. However, due to the limited subsurface data, reservoir distribution, and heterogeneities, the study of these systems must be complemented by analogues.…”

“…Because of its deposition during the sag phase of the Salta rift, microbialites and carbonatic facies of Yacoraite Formation attracted geoscientists attention as an important tool for the study of Brazilian pre-salt. However, the great variety in the organo-sedimentary facies of this formation limits generalization at different scales of work (Rangel and Carminatti 2000, Durieux and Brown 2007, Romero-Sarmiento et al 2019, Gomes et al 2020, Ruiz-Monroy 2021. Numerous works were focused on the study and understanding of microbialitic systems of Yacoraite Formation from a stratigraphic, sedimentary, paleoenvironmental, paleobiological/paleontological, and petrophysical point of view (e.g., Hamon et al 2012, Cónsole-Gonella and Marquillas 2014, Villafañe 2016, Bunevich et al 2017, Cónsole-Gonella et al 2017, Ruiz et al 2018, de Valais and Cónsole-Gonella 2019, Deschamps et al 2020, Gomes et al 2020, Granier and Lapointe 2022, Tomás et al 2022.…”

“…This oil province is characterized by large prospects for excellent quality light oil, accumulated in mostly or only partially (depending on dominant interpretation theories on their genesis) microbialitic and bioclastic carbonate facies, and deposited between the Barremian and Aptian (e.g. Rangel and Carminatti 2000, Muniz and Bosence 2015, Thompson et al 2015.…”

“…Using these analogous deposits to increase the knowledge of lacustrine microbialites may be of great importance to make predictions regarding the construction of facies models that may suggest the location of large, stratigraphically significant, lacustrine microbialite reservoirs in the subsurface (Awramik and Buchheim 2012). However, the great variety in the organo-sedimentary facies of this formation limits extrapolations at different scales of work (Rangel and Carminatti 2000, Durieux and Brown 2007, Romero-Sarmiento et al 2019, Gomes et al 2020, Ruiz-Monroy 2021.…”