Computer simulation of the influence of basin physiography on condensed section deposition and maximum flooding

Liu, Keyu; Liang, Trent Cheng-Kai; Paterson, Lincoln; Kendall, Christopher G. St. C.

doi:10.1016/s0037-0738(98)00105-5

Cited by 19 publications

(10 citation statements)

References 22 publications

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“…This interpretation is consistent with more general results that indicate basin topography can cause transgressions to appear later in the interior, higher elevation portions of subbasins (e.g. Catuneanu et al ., ; Liu et al ., ). We have no constraint for what subdivision of the Productive Series (typically referred to as ‘suites’) is represented by the coarse grained material at the base of the Sarica section, though previous mapping indicates that these conglomerates are part of the Balakhany Suite (Ali‐Zade, ).…”

Section: Discussionmentioning

confidence: 99%

Late Miocene to Pliocene stratigraphy of the Kura Basin, a subbasin of the South Caspian Basin: implications for the diachroneity of stage boundaries

et al. 2014

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Relative ages of late Cenozoic stratigraphy throughout the Caspian region are referenced to regional stages that are defined by changes in microfauna and associated extreme (>1000 m) variations in Caspian base level. However, the absolute ages of these stage boundaries may be significantly diachronous because many are based on the first occurrence of either transgressive or regressive facies, the temporal occurrence of which should depend on position within a basin. Here, we estimate the degree of diachroneity along the Akchagyl regional stage boundary within the Caspian basin system by presenting two late Miocene‐Pliocene aged measured sections, Sarica and Vashlovani, separated by 50 km and exposed within the Kura fold‐thrust belt in the interior of the Kura Basin. The Kura Basin is a western subbasin of the South Caspian Basin and the sections presented here are located >250 km from the modern Caspian coast. New U‐Pb detrital zircon ages from the Sarica section constrain the maximum depositional age for Productive Series strata, a lithostratigraphic package considered correlative with the 2–3 Myr‐long regional Eoakchagylian or Kimmerian stage that corresponds to a period of extremely low (>500 m below the modern level) Caspian base level. This new maximum depositional age from the Productive Series at Sarica of 2.5 ± 0.2 Ma indicates that the regionally extensive Akchagyl transgression, which ended the deposition of the Productive Series near the Caspian coast at 3.2 Ma, may have appeared a minimum of 0.5 Myr later in the northern interior of the Kura Basin than at the modern Caspian Sea coast. The results of this work have important implications for the tectonic and stratigraphic history of the region, suggesting that the initiation of the Plio‐Pleistocene Kura fold‐thrust belt may have not been as diachronous along strike as previously hypothesized. More generally, these results also provide a measure of the magnitude of diachroneity possible along sequence boundaries, particularly in isolated basins. Comparison of accumulation rates between units in the interior of the Kura subbasin and the South Caspian main basin suggest that extremely large variations in these rates within low‐stand deposits may be important in identifying the presence of subbasins in older stratigraphic packages.

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Section: Discussionmentioning

confidence: 99%

Late Miocene to Pliocene stratigraphy of the Kura Basin, a subbasin of the South Caspian Basin: implications for the diachroneity of stage boundaries

et al. 2014

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“…These surfaces are key chronostratigraphic markers used in sequence stratigraphic correlations (Loutit et al 1988;Galloway 1989;Van Wagoner et al 1990;Liu et al 1998). Although downlap surfaces can be easily deciphered on lowresolution seismic lines, their definition in the rock record is more ambiguous and based largely on lithology (e.g., Carter et al 1998;Crews et al 2000).…”

Section: Discussionmentioning

confidence: 99%

Eustatic Signals in Deep-Marine Sedimentary Sequences Recovered at ODP Site 978, Alboran Basin, Western Mediterranean Sea

Marsaglia¹,

Fukusawa²,

Cornell³

et al. 2004

Journal of Sedimentary Research

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A continuous section of Pliocene marine sediments was recovered at Ocean Drilling Program Site 978, located in the Alboran Sea between Spain and Morocco. Three Pliocene subunits have been defined at Site 978: the lowermost (Subunit IC, 129.2 m thick) is characterized by alternating beds of lighter, more calcareous, and darker, less calcareous, claystone with bioturbated upper and lower contacts (Type 1 cycles); the middle (Subunit IB, 67.1 m thick) is composed of relatively homogeneous nannofossil claystone; and the uppermost (Subunit IA, 211.6 m thick) contains abrupt-based darker, terrigenous layers interpreted as turbidites that are interstratified with lighter nannofossil claystone (Type 2 cycles). The rhythmically bedded light and dark layers in Subunit IC correlate with those in the Rosello Composite Section of Sicily, a global reference standard for the Pliocene time scale. These sedimentary cycles are products of variations in precession and resulting continental runoff. Missing cycles occur during eustatic highstands. The shift to more homogeneous sedimentation in Subunit IB is represented in similar-aged sequences throughout the Mediterranean which display evidence of submarine mass wasting. Mediterranean-wide slope degradation was likely a response to rapid sea-level change at approximately 3 Ma. This change in sedimentation style was accompanied by an upsection increase in sediment accumulation rates associated with turbidite influx in Subunit IA. Turbidite frequency throughout the Pliocene section can be linked to eustatic changes in sea level, with turbidite maxima corresponding with mid-sequence downlap surfaces and their associated condensed sections.

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“…However, the translation of sea‐level change to shoreline movement and offshore sediment flux is a nonlinear process (e.g. Muto and Steel, 1992; Liu et al. , 1998; Robin et al.…”

Section: Introductionmentioning

confidence: 99%

Record of sea-level fall in shallow-water hemipelagic strata: case study and numerical modelling

Laurin

Vodrážka

2010

Terra Nova

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Terra Nova, 00, 1–7, 2010 Abstract Hemipelagic rhythmites of the Bohemian Cretaceous Basin and two‐dimensional numerical modelling of coexisting hemipelagic and siliciclastic depositional systems reveal important details on hemipelagic sequence stratigraphy. Lowstand systems tracts of c. 400 ka sequences are marked by distinct (up to 100 ka) phase lags between maxima in bottom shear stress (omission surfaces) and maxima in siliciclastic deposition (mudstone intercalations) in the shallowest zone of this hemipelagic setting. Importantly, sediment redistribution caused by local differences in bathymetry induces up to 100 ka shifts in lithological markers, thus changing the hemipelagic expression of sea‐level falls. Both results underscore the frequently neglected fact that lithological and geochemical data on siliciclastic fluxes (e.g. quartz contents, Ti/Al) provide nonlinear proxies of eustatic and relative sea‐level changes. Hemipelagic records of climatic and orbital forcings can be markedly distorted in phases and magnitudes. Two‐dimensional modelling can be instrumental in extracting unbiased signals.

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Computer simulation of the influence of basin physiography on condensed section deposition and maximum flooding

Cited by 19 publications

References 22 publications

Late Miocene to Pliocene stratigraphy of the Kura Basin, a subbasin of the South Caspian Basin: implications for the diachroneity of stage boundaries

Late Miocene to Pliocene stratigraphy of the Kura Basin, a subbasin of the South Caspian Basin: implications for the diachroneity of stage boundaries

Eustatic Signals in Deep-Marine Sedimentary Sequences Recovered at ODP Site 978, Alboran Basin, Western Mediterranean Sea

Record of sea-level fall in shallow-water hemipelagic strata: case study and numerical modelling

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