Sea-level rise since 8.2ka recorded in the sediments of the Potengi–Jundiai Estuary, NE Brasil

Boski, Tomász; Bezerra, Fracisco H.R.; Pereira, Luis Alberto; Souza, Anderson Miranda de; Maia, Rúbson Pinheiro; Lima-Filho, Francisco Pinheiro

doi:10.1016/j.margeo.2015.04.003

Cited by 42 publications

(39 citation statements)

References 59 publications

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“…Facies analysis and radiocarbon dating on core T4 indicate that the transgressive infilling of the outer part of the bay started before 8200 cal. years BP, as observed in coastal bays and estuaries around the globe (Woodroffe et al, 1993;Maddox et al, 2008;Rodriguez et al, 2008;Weschenfelder et al, 2014;Boski et al, 2008Boski et al, , 2015Kostecki et al, 2015;Masuda and Itomoto, 2015;Borges and Nittrouer, 2016). of the Bay-head delta as a result of previous sediment infilling during the transgressive phase along the study area.…”

Section: Discussionsupporting

confidence: 52%

Northeast Guanabara Bay and Coastal Plain Holocene Sedimentary Evolution (Brazil): A Contribution

et al. 2017

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Sedimentological and radiocarbon investigations are part of an ongoing research on the Bay-head delta of northeast Guanabara Bay, Rio de Janeiro State. Sediment accumulation indicates that the Holocene infill of the bay-head delta started around 8.2 kyr BP and was not in pace with the eustatic sea-level rise. Sediment accumulation was faster during the transgressive phase (0.56 cm.yr -1 ). However, during the regressive phase, progradation driven by baselevel fall was predominant over vertical sediment accumulation (0.02 cm.yr -1 ). Based on coring, three sedimentary units were defined: fluvial sands (U1), estuarine deposits (U2) and fluvial mud (U3).

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Section: Discussionsupporting

confidence: 52%

Northeast Guanabara Bay and Coastal Plain Holocene Sedimentary Evolution (Brazil): A Contribution

et al. 2017

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“…Rio Grande do Norte State in northeast Brazil shows a similar form in RSL to Suriname and Guyana, and although the timing of the initiation of the highstand is comparable, the magnitude of the highstand at Rio Grande do Norte State is greater at 2.9±0.6 m [101,102]. From 5 ka to present, RSL fell at a rate of −0.3±0.4 m/ka (Figs.…”

Section: Caribbean and South Americamentioning

confidence: 82%

“…This method has not been previously adopted to describe spatial variability in RSL change on a global scale and represents a [54,56], Northwest Georgia Strait, Canada [49], Southern Maine, USA [71], New Jersey, USA [43], Louisiana, USA [74], California, USA [49], St. Croix [99], Suriname and Guyana [100 ], Rio Grande do Norte State, Brazil [102], and South Shetland Islands, Antarctica [112,114]. Altitudes and interpretations of sea-level index points (including errors) have not been amended from the original publication (see section 2 for details).…”

Section: Rsl Histories and Application Of Gaussian Process Modelmentioning

confidence: 99%

Holocene Relative Sea-Level Changes from Near-, Intermediate-, and Far-Field Locations

Khan

Ashe

Shaw

et al. 2015

Curr Clim Change Rep

126

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Holocene relative sea-level (RSL) records exhibit spatial and temporal variability that arises mainly from the interaction of eustatic (land ice volume and thermal expansion) and isostatic (glacio-and hydro-) factors. We fit RSL histories from near-, intermediate-, and far-field locations with noisy-input Gaussian process models to assess rates of RSL change. Records from near-field regions (e.g., Antarctica, Greenland, Canada, Sweden, and Scotland) reveal a complex pattern of RSL fall from a maximum marine limit due to the net effect of eustatic sea-level rise and glacio-isostatic uplift with rates of RSL fall as great as −69±9 m/ka. Intermediatefield regions (e.g., mid-Atlantic and Pacific coasts of the USA, Netherlands, Southern France, St. Croix) display variable rates of RSL rise from the cumulative effect of eustatic and isostatic factors. Fast rates of RSL rise (up to 10±1 m/ka) are found in the early Holocene in regions near the center of forebulge collapse. Far-field RSL records exhibit a midHolocene highstand, the timing (between 8 and 4 ka) and magnitude (between <1 and 6 m) of which varies among South America, Africa, Asia, and Oceania regions.

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“…Several worldwide records show evidence of rapid transgression around 11·5 cal kyr bp (Maddox et al ., ; Delgado et al ., ; Milli et al ., ), 9·5 to 9·2 cal kyr bp (Hori et al ., ; Zong et al ., ; Amorosi et al ., ; Tanabe et al ., ), 8·5 to 8·3 cal kyr bp (Yim et al ., ; Troiani et al ., ; Amorosi et al ., ; Boski et al ., ) and 8·0 to 7·3 cal kyr bp (Heap & Nichol, ; Li et al ., ; Abrahim et al ., ; Trog et al ., ; Breda et al ., ), thus supporting the hypothesis of a dominant control of eustasy on parasequence architecture.…”

Section: Discussionmentioning

confidence: 99%

Early Holocene transgressive palaeogeography in the Po coastal plain (northern Italy)

et al. 2017

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To understand the complex stratigraphic response of a coastal depositional system to rapid eustatic rise and sediment inputs, the evolution of the Adriatic coastline and Po River system, during the post‐glacial (Holocene) transgression, was investigated. The landward migration and evolution of a wave‐dominated estuary was mapped, based on an extensive data set comprising 14 boreholes, 28 core descriptions and 308 piezocone tests, chronologically constrained between 11·5 and 7·0 kyr bp by 137 radiocarbon dates. Palaeogeographic maps reveal temporal differences in retrogradational geometries and mechanisms that likely underpin shoreline retreat. The Po estuary initially developed within a shallowly incised valley and then spread onto the interfluves. Between 11·5 and 9·2 kyr bp the Po fluvial system became avulsive/distributive and wetlands developed in topographically depressed areas. The shoreline retreated at a mean rate of ca 10 m year−1, between 9·2 kyr and 7·7 kyr bp, following a stepped trajectory at the centennial scale. After 7·7 kyr bp, bayhead deltas started to prograde and partially filled the estuary. The overall stratigraphic architecture is interpreted to reflect the sedimentary response of the coastal depositional system to the main pulses of early Holocene eustatic rise. The influence of antecedent topography, partly due to local subsidence, was dominant at the time of initial transgression. Basin morphology influenced sediment dispersal and partitioning. Sediment supplied by the Po River was trapped within the estuary, whereas coastal sand bodies at the estuary mouth were fed by alongshore currents and by reworking of older barriers. High‐resolution age control that ties facies evolution to independently constrained eustasy provides direct data to test models of short‐term coastal retreat under conditions of relative sea‐level rise, and makes this case study a useful analogue for the interpretation of ancient marginal‐marine, retrogradational systems where only stratal geometries are available.

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Sea-level rise since 8.2ka recorded in the sediments of the Potengi–Jundiai Estuary, NE Brasil

Cited by 42 publications

References 59 publications

Northeast Guanabara Bay and Coastal Plain Holocene Sedimentary Evolution (Brazil): A Contribution

Northeast Guanabara Bay and Coastal Plain Holocene Sedimentary Evolution (Brazil): A Contribution

Holocene Relative Sea-Level Changes from Near-, Intermediate-, and Far-Field Locations

Early Holocene transgressive palaeogeography in the Po coastal plain (northern Italy)

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