Unraveling multiple provenance areas using sandstone petrofacies and geochemistry: An example in the southern flank of the Golfo San Jorge Basin (Patagonia, Argentina)

Limarino, Carlos Óscar; Giordano, Sergio

doi:10.1016/j.jsames.2016.01.006

Cited by 12 publications

(14 citation statements)

References 29 publications

(55 reference statements)

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“…The presence of syncontractional growth strata and local angular unconformities in the Bajo Barreal (Figure 7) and Laguna Palacios formations (Figure 8;~99 to 72 Ma, respectively; Suárez et al, 2014;Clyde et al, 2014) in the footwall of the La Paciencia fault indicates contraction during Cenomanian to Campanian times. This interpretation is compatible with the recent findings of Limarino and Giordano (2016) in equivalent units over the southern flank of the Golfo San Jorge Basin (Figure 1a). Based on a provenance analysis, these authors suggested sources from the Andean volcanic arc and the volcanic Jurassic units and basement outcrops from the Deseado FTB in these sedimentary rocks.…”

Section: Interpretation Of Field Data and Timing Of Intraplate Deformsupporting

confidence: 93%

“…For instance, decoding early orogenic activity in Patagonia would contribute to the general discussion between studies favoring an early development of the whole Andes in Cretaceous times (e.g., Fildani et al, ; Folguera & Iannizzotto, ; Jaimes & De Freitas, ; Martin‐Gombojav & Winkler, ; Mescua et al, ; Mpodozis et al, ; Sempere, ; Soler & Bonhomme, ; Tunik et al, , among others) and works that only contemplate Cenozoic Andean mountain building stages (e.g., Armijo et al, ; Faccenna et al, ; Husson et al, ; Oncken et al, , among others). In addition, it is crucial to understand sediment source areas to neighboring Austral and San Jorge Gulf oil‐bearing basins (e.g., Barberón et al, ; Limarino & Giordano, ; Malkowski et al, ; Figure a) and to shed light into Mesozoic paleobiogeography in Patagonia which has the richest fossil record of South America (Wilf et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…org/10.1029/2018TC005173 Bonhomme, 1990;Tunik et al, 2010, among others) and works that only contemplate Cenozoic Andean mountain building stages (e.g., Armijo et al, 2015;Faccenna et al, 2013;Husson et al, 2008;Oncken et al, 2006, among others). In addition, it is crucial to understand sediment source areas to neighboring Austral and San Jorge Gulf oil-bearing basins (e.g., Barberón et al, 2015;Limarino & Giordano, 2016; Gianni et al (2015). Outcrops belonging to late Early-Late Cretaceous nonmarine rocks are shown in green.…”

Section: Introductionmentioning

confidence: 99%

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Cretaceous Intraplate Contraction in Southern Patagonia: A Far‐Field Response to Changing Subduction Dynamics?

et al. 2018

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The origin, extent, and timing of intraplate contraction in Patagonia are among the least understood geological processes of southern South America. Particularly, the intraplate Deseado fold‐thrust belt (FTB), located in the Patagonian broken foreland (47°–48°30′S), is one of the most enigmatic areas. In this belt, time constraints on tectonic events are limited and synorogenic deposits have not been documented so far. Furthermore, the driving mechanism for intraplate contraction remains unknown. In this study, we carried out a structural and sedimentological analysis. We report the first syntectonic deposits in this area in the Baqueró (Aptian) and Chubut (Cenomanian/Campanian) groups and a newly found unit referred to as the Albian beds (109.9 ± 1.5 Ma). Thus, several contractional stages in late Aptian, Albian, and Cenomanian‐Campanian are then inferred. We suggest that the Deseado FTB constituted the southernmost expression of the early Patagonian broken foreland in Cretaceous times. Additionally, we analyzed the spatiotemporal magmatic arc behavior as a proxy of dynamic changes in the Andean subduction during determined stages of intraplate contraction. We observe a significant arc broadening from ~121 to 82 Myr and magmatic quiescence after ~67 Ma. This is interpreted as a slab shallowing to flattening process. Far‐field tectonic forces would have been produced by increased plate coupling linked to the slab flattening as indirectly indicated by the correlation between Cretaceous arc expansion and intraplate contraction. Finally, the tectonic evolution of the Deseado FTB favors studies supporting inception of Andean shortening since Cretaceous times.

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Section: Interpretation Of Field Data and Timing Of Intraplate Deformsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cretaceous Intraplate Contraction in Southern Patagonia: A Far‐Field Response to Changing Subduction Dynamics?

et al. 2018

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“…Ibañez et al (2015) identified feldspar litharenites and litharenites from samples along exposures of the Bajo Barreal Formation in the Cerro Guadal oilfield, located 26 km toward NNW; their data overlap the field of compositions in the QFL diagram (Folk et al, 1980) of samples obtained in Section A of the Cerro Ballena. Limarino and Giordano (2016) analyzed arenites from subsurface samples of the Bajo Barreal Formation with comparable detrital components to those recognized in Section A, identifying two distinctive petrofacies, referred as VF and VP. Limarino and Giordano (2016) consider both petrofacies as indicative of provenance from volcanic terrains, discriminating VF and VP petrofacies by the relative proportion of plagioclase and k-feldspar within the sandstones.…”

Section: Detrital Sandstone Compositionmentioning

confidence: 99%

“…Limarino and Giordano (2016) analyzed arenites from subsurface samples of the Bajo Barreal Formation with comparable detrital components to those recognized in Section A, identifying two distinctive petrofacies, referred as VF and VP. Limarino and Giordano (2016) consider both petrofacies as indicative of provenance from volcanic terrains, discriminating VF and VP petrofacies by the relative proportion of plagioclase and k-feldspar within the sandstones. The VP petrofacies contain a percentage of plagioclase twice that of k-content and are considered related to source areas located in the Deseado Region, whereas in the VF petrofacies the Kcontent is similar to the plagioclase percentage, being sourced from the Andes Cordillera (Limarino and Giordano, 2016).…”

Section: Detrital Sandstone Compositionmentioning

confidence: 99%

Climatic control on stacking and connectivity of fluvial successions: Upper Cretaceous Bajo Barreal Formation of the Golfo San Jorge basin, Patagonia

Paredes

Giordano²,

Olazábal

et al. 2020

Marine and Petroleum Geology

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Provenance and statistical analysis of the Lower Oligocene gravelly deposits in central Pindos foreland basin, western Greece: Implications for orogenic build‐up and unroofing

et al. 2022

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This study integrates provenance and statistical data, along with published sedimentological results, applied on the Lower Oligocene submarine‐fan deposits in Pindos foreland basin. Twelve outcrops were analysed using conglomerate clast composition, petrographic and statistical analysis and this integration suggests that the studied deposits were sourced by the Pindos Orogen. Conglomerate clast composition analysis suggests that the studied deposits contain mainly limestone clasts, followed by sandstone and chert clasts. This conclusion is further supported by the petrographic and cathodoluminescence analyses that have been conducted on the conglomerate matrix and, additionally, suggest the influence of a low‐grade metamorphic source. Potential source rock candidates in the Pindos Orogen that provided the detritus in the succession are represented by the Mesozoic carbonates (limestone and chert), the Cenozoic transitional (mixed carbonate and siliciclastic) and the Cenozoic clastic submarine‐fan deposits (sandstone). The rock units of Pelagonian zone likely represent the low‐grade metamorphic source rock. The principal component and cluster analysis of clast lithologies suggest the existence of three compositional clusters, with the first one being controlled by black chert clasts, the second one by sandstone clasts and the third one by limestone and red chert clasts. The upward increase of chert and lithic fragment abundances is ascribed to the progressive unroofing of the Pindos orogenic source regions. This study utilizes the Pindos foreland basin as an example to unravel the contribution of orogenic processes on sedimentary provenance of the adjacent pro‐foreland basins. Furthermore, this study highlights the advantage of implementing a multi‐faceted approach, including statistical treatment in sedimentary provenance.

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Unraveling multiple provenance areas using sandstone petrofacies and geochemistry: An example in the southern flank of the Golfo San Jorge Basin (Patagonia, Argentina)

Cited by 12 publications

References 29 publications

Cretaceous Intraplate Contraction in Southern Patagonia: A Far‐Field Response to Changing Subduction Dynamics?

Cretaceous Intraplate Contraction in Southern Patagonia: A Far‐Field Response to Changing Subduction Dynamics?

Climatic control on stacking and connectivity of fluvial successions: Upper Cretaceous Bajo Barreal Formation of the Golfo San Jorge basin, Patagonia

Provenance and statistical analysis of the Lower Oligocene gravelly deposits in central Pindos foreland basin, western Greece: Implications for orogenic build‐up and unroofing

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