Trace fossils, sedimentary facies and parasequence architecture from the Lower Cretaceous Mulichinco Formation of Argentina: The role of fair-weather waves in shoreface deposits

Abstract

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Sedimentary Architecture of Storm-Influenced Tidal Flat Deposits of the Upper Mulichinco Formation, Neuquén Basin, Argentina

“…Meters-thick amalgamated HCS and SCS deposits, and a generally much-better sorted succession than the one documented in this study, were reported from the same study. Wesolowski et al (2018) further identified upper shoreface deposits, which arguably positions the locality marginally closer to the shoreline than the deposits documented in this study. Nevertheless, Wesolowski et al (2018) concluded that Puerta Curaco was entirely wavedominated (non-tidal) and did not identify any sign of tidal influence (Figure 12).…”

“…See legend for facies and trace fossils; letters refer to Dashtgard et al (2012) to include tidal flat environment; plots include upper Mulichinco Fm. bulk locality plots for this study's four study localities, approximate bulk plot for the study area in blue-green, and bulk plot for the Puerta Curaco area in gray (Wesolowski et al, 2018) The dataset exhibits a gently increased storm wave dominance toward southwest (Figure 10). Cerro Pampa Tril records the thickest accumulation of mixed wave-and tide-influenced deposits (between FS5.2 and FS6, Figure 10) and accommodates the highest concentration of storm deposits of this study (between FS6.1 and FS6.2; Figure 10).…”

“…Cerro Pampa Tril records the thickest accumulation of mixed wave-and tide-influenced deposits (between FS5.2 and FS6, Figure 10) and accommodates the highest concentration of storm deposits of this study (between FS6.1 and FS6.2; Figure 10). Wesolowski et al (2018) described the upper Mulichinco Fm. deposits at Puerta Curaco (Figure 1C), a locality ca.…”

Unravelling Phanerozoic evolution of radial to rosette trace fossils

“…; Wesolowski et al . ). Recent occurrences of similar traces were reported in deep‐marine environments of the Bay of Bengal (Ohta ; Gaillard ; Stanley & Pickerill ) and the tidal flat of Inchon, Korea (Frey et al .…”

Trace fossils and depositional environments of the middle Turonian sandstones in the Upper Nysa Kłodzka Graben (Sudetes, Poland) revisited

“…Phycosiphon is common in ox y gen-and nu tri ent-rich fine-grained siliciclastic softground de pos its (Rodríguez-Tovar et al, 2014a). This ichnospecies is char ac ter is tic of the prox i mal and dis tal lower shoreface to lower off shore and even deep-sea set tings in calmer con di tions (Dashtgard et al, 2012;Vakarelov et al 2012;Wesolowski et al, 2018;MacEachern and Bann, 2020). It is known from the Cam brian to the Ho lo cene (Naruse and Nifuku, 2008;Hammersburg et al, 2018).…”