Palynological analysis of a Lower Cretaceous subsurface succession from the south flank of the Golfo San Jorge Basin, Argentina

Loinaze, Valeria Susana Pérez; Césari, Silvia N.; Giordano, Sergio; Stach, N. Hugo; Ansa, Andrés

doi:10.1016/j.cretres.2019.01.008

Cited by 13 publications

(4 citation statements)

References 32 publications

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“…A phase of active stretching occurred along several NW-SE, NE-SW and W-E striking half grabens conforming the "Neocomian Basin" (Fitzgerald et al, 1990;Figari et al, 1996;Sylwan, 2001;Paredes et al, 2013;Giampaoli, 2015), which in most cases represent the reactivation of inherited weaknesses in a basement of presumably upper Paleozoic age (Paredes et al, 2018) with ages ranging from Kimmeridgian? to Hauterivian (Seiler and Viña, (1997) in Sylwan et al, 2011;Perez Loinaze et al, 2019). The overlying "Chubutian Basin" records several extensional phases (Figari et al, 1999;Paredes et al, 2013Paredes et al, , 2018, and gradual thickness distribution at a regional scale (Fitzgerald et al, 1990) but locally compressional features have been identified (Navarrete et al, 2016).…”

Section: Cretaceous Structural Scenariomentioning

confidence: 99%

Sandstone petrography and provenance of the Chubut Group (Cretaceous) in the Cañadón Matasiete (Golfo San Jorge Basin, central Patagonia): Implications for basin evolution and alluvial organization

Olazábal

Tunik

Paredes

2020

Journal of South American Earth Sciences

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Section: Cretaceous Structural Scenariomentioning

confidence: 99%

Sandstone petrography and provenance of the Chubut Group (Cretaceous) in the Cañadón Matasiete (Golfo San Jorge Basin, central Patagonia): Implications for basin evolution and alluvial organization

Olazábal

Tunik

Paredes

2020

Journal of South American Earth Sciences

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“…Distribución geográfica y estratigráfica. Especie cosmopolita ampliamente distribuida en depósitos desde el Triásico (ver White, 2006;Povilauskas et al, 2008;Povilauskas, 2011;Cornou et al, 2012;Loinaze et al, 2019). Santa Cruz, miembros inferior y superior de la Formación Río Turbio, Eoceno medio-tardío (este trabajo).…”

Section: Observaciones Afín Al Género Lycopodium Lunclassified

Esporas Y Formas Algales De La Formación Río Turbio (Eoceno), Santa Cruz, Argentina: Nuevos Aportes a Su Palinoflora

Fernández

Savoretti

2020

PEAPA

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SPORES AND ALGAL FORMS OF THE RÍO TURBIO FORMATION (EOCENE), SANTA CRUZ, ARGENTINA: NEW CONTRIBUTIONS TO ITS PALYNOFLORA. The systematic study of spores and algal forms recovered from the Río Turbio Formation, middle-upper Eocene of the Austral Basin is presented. Freshwater algae, bryophytes, ferns and lycophytes are described. Closterium sp. cf. C. thailandicum Songtham et al., Botryococcus sp., Coelastrum sp. 1, Catinipollis geiseltalensis Krutzsch, Bryophyta s.l. sp. 1, Kuylisporites waterbolkii Potonié, Matonisporites sp. 1, Foveotriletes sp. 1, Polypodiisporites perverrucatus (Couper) Khan and Martin, Klukisporites scaberis (Cookson and Dettmann) Dettmann, Deltoidospora cf. australis, (Couper) Pocock, Verrucosisporites sp. 1, Verrucosisporites sp. 2 are new forms for the Río Turbio Formation. The species Crassoretitriletes vanraadshooveni Germeraad et al. is a new record for Argentina and Gleicheniidites circinidites Dettmann is a new record for the Eocene of Argentina.

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“…Previous records. Early Jurassic to Early Cretaceous of Australia (e.g., Dettmann 1963;Burger 1974;Backhouse 1975;Filatoff 1975;Burger 1980;Dettmann 1986;Backhouse 1988;Burger 1989 Cretaceous of India (Venkatachala et al 1969;Tiwari & Tripathi 1991); Late Jurassic and Early Cretaceous of North America (Pocock 1962;Playford 1971;Srivastava 1975;Galloway et al 2013); Early Cretaceous of South America (Passalia et al 2016;Perez Loinaze et al 2019); Cretaceous of China (Li Wenben & Liu Zhaosheng 1994;Song et al 2000); Early Cretaceous of Africa (Schrank & Mahmoud 1998;Ibrahim et al 2001;Mahmoud & Deaf 2007;Deaf et al 2016).…”

Section: Remarks and Comparisonsmentioning

confidence: 99%

“…Previous records. Early Jurassic to Early Cretaceous of Australia (Balme 1957;de Jersey 1959;de Jersey 1963;Balme 1964;de Jersey & Paten 1964;Hill et al 1966;Paten 1967;Backhouse 1975;Filatoff 1975;McKellar 1975;McKellar 1977;McKellar 1979;Morgan 1980;McKellar 1981c;McKellar 1981d;McKellar 1981a;Backhouse 1988;Burger 1989;Burger 1996;McKellar 1998;Mantle 2009); Jurassic and Early Cretaceous of Egypt (Ibrahim et al 2001); Middle Jurassic to Early Cretaceous of India (Singh et al 1964;Venkatachala et al 1969;); Jurassic and Early Cretaceous of South America (Olivera et al 2015;Perez Loinaze et al 2019); mid-Cretaceous of offshore Antarctica (Mohr et al 2002).…”

Section: Remarks and Comparisonsmentioning

confidence: 99%

Palynology of the Jurassic–Cretaceous transition, northern Surat Basin, Queensland, Australia

Cooling¹

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The terrestrially deposited Gubberamunda Sandstone and Orallo Formation of the Surat Basin represent the most complete Late Jurassic -Early Cretaceous sedimentary sequence in Queensland. This thesis presents the results of palynological and geochronological studies of these formations, and the underlying upper Westbourne Formation and overlying lower Mooga Sandstone. An improved understanding of the palynostratigraphy of this interval, presented here, will enable future workers to more accurately correlate and date strata both within and beyond the Surat Basin.Samples were taken for biostratigraphy and geochronology from three Geological Survey of Queensland (GSQ) stratigraphic boreholes located in the northern Surat Basin. These were GSQ DRD 26 in the west, GSQ Roma 2 in the center of the basin and GSQ Dalby 1 in the east. A systematic taxonomic survey of 89 biostratigraphic samples from the three boreholes revealed a diverse palynoflora from which 218 taxa were identified. These taxa included both in situ and reworked (latest Carboniferous -Early Jurassic) spores and pollen, as well as palynomorphs of algal, fungal, acritarch and unknown affinities. Of these, six are new: Dictyotosporites esterleae, Retitriletes thomsonii, Rugulatisporites johniorum, Camarozonosporites dorsus, Contignisporites confractus and Aratrisporites woodii. One new combination of Dictyotosporites rugulatus (Sajjadi & Playford) is proposed herein. Palynological samples from the upper Westbourne Formation and the lower Gubberamunda Sandstone yielded palynofloras here assigned to the Retitriletes watherooensis Association Zone, while those from the upper Gubberamunda Sandstone to the lower Mooga Sandstone were assigned to the Ruffordiaspora australiensis Interval Zone. Furthermore, Subzones APJ6.2.1, APJ6.2.2, APK1.1 and APK1.2.1 of Price (1997) are also herein formally described and recognized in the Surat Basin respectively as the Neoraistrickia equalis Interval Subzone, Foraminisporis dailyi Interval Subzone, Lower Ruffordiaspora australiensis Interval Subzone and Upper Ruffordiaspora australiensis Interval Subzone. Based on taxon ranges from this study and from Burger (1974), Subzone APK1.2.2 (Price, 1997) does not appear to be useful in the Surat Basin succession.The geochronological samples yielded two U-Pb Chemical Abrasion-Thermal Ionizations Mass Spectrometry (CA-TIMS) ages from the upper Orallo Formation of 134.38 ± 0.04 Ma (late Valanginian) from GSQ DRD 26 and of ≤132.46 ± 0.36 Ma (early Hauterivian) from GSQ Roma 2. On this basis, the Gubberamunda Sandstone is determined to be of Tithonian-Berriasian age and the Orallo Formation to be of (?)Berriasian/Valanginian-Hauterivian age. Accordingly, deposition of the Bungil Formation, which overlies the Mooga Sandstone, cannot have begun prior to the Hauterivian.Analysis of the sampled palynofloras shows that, during the Tithonian-Hauterivian, the Surat Basin flora remained relatively unchanging with no major floristic turnovers. This flora consisted of diverse ferns, conifers, lycopo...

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Palynological analysis of a Lower Cretaceous subsurface succession from the south flank of the Golfo San Jorge Basin, Argentina

Cited by 13 publications

References 32 publications

Sandstone petrography and provenance of the Chubut Group (Cretaceous) in the Cañadón Matasiete (Golfo San Jorge Basin, central Patagonia): Implications for basin evolution and alluvial organization

Sandstone petrography and provenance of the Chubut Group (Cretaceous) in the Cañadón Matasiete (Golfo San Jorge Basin, central Patagonia): Implications for basin evolution and alluvial organization

Esporas Y Formas Algales De La Formación Río Turbio (Eoceno), Santa Cruz, Argentina: Nuevos Aportes a Su Palinoflora

Palynology of the Jurassic–Cretaceous transition, northern Surat Basin, Queensland, Australia

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