FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4319029348> ?p ?o ?g. }

• W4319029348 endingPage "1471" @default.
• W4319029348 startingPage "1413" @default.
• W4319029348 abstract "ABSTRACT The study examines bioclastic carbonate contourites that arise from the broad spectrum of bottom‐current related sedimentary processes ranging from deposition to erosion. The result of the intermittent accumulation of sediment are thin and condensed successions with abundant hiatuses. Such bottom‐current deposits are poorly known, since the broadly accepted contourite‐facies model, the bi‐gradational sequence, characterizes environments of contourite depositional systems as a continuous accretion of fine‐grained siliciclastic sediments. To increase current understanding of the carbonate facies within hiatal contourite records, the Eifelian–Frasnian of the Tafilalt Platform in Morocco was investigated. The succession is divided into five facies associations that are interpreted to reflect pelagic sedimentation and deposition from bottom currents on a contourite terrace, a gently inclined section of the upper slope of Gondwana shaped by a water‐mass interface. Contourite deposition was mainly controlled by oxic clear‐water currents (documented by moderately to completely bioturbated limestones with abundant hydrogenetic ferromanganese nodules, and low organic‐carbon contents), at times also by an anoxic water mass (featured by organic‐rich coquinas with absent to sparse bioturbation and predominantly syngenetic framboidal pyrites). Biostratigraphic data and the overall depositional architecture display palaeoceanographic hydrodynamic processes associated with a shifting water‐mass interface. The inner terrace was characterized by an alongslope contourite channel and a small mounded drift at its downslope margin. Energetic bottom currents furthermore caused abraded surfaces, i.e. plain areas of non‐deposition and localized erosion, and sandy condensation layers. The microfacies reflects repeated alternation between suspension deposition, winnowing of fines, bedload traction, dynamic sediment bypassing and reworking, together with concomitant seafloor cementation. Coquinas of mainly planktonic and nektonic organisms are identified as integral parts of bi‐gradational contourite sequences showing inverse and normal grading. Hiatal lag concentrations of carbonate intraclasts, ferromanganese nodules and conodonts often drape hardgrounds and erosional surfaces at the midpoint of these frequently incomplete sequences. This Devonian case provides the opportunity to investigate the spatial and temporal variability of the bed‐scale contourite sequence, also with regard to the drift‐scale depositional architecture. In addition, the identified high‐resolution record is a starting point for unravelling the pattern of oceanic circulation in the Devonian greenhouse world." @default.
• W4319029348 created "2023-02-03" @default.
• W4319029348 creator A5012222509 @default.
• W4319029348 creator A5015013647 @default.
• W4319029348 creator A5039217091 @default.
• W4319029348 creator A5041706123 @default.
• W4319029348 creator A5043932500 @default.
• W4319029348 creator A5049983303 @default.
• W4319029348 creator A5059752918 @default.
• W4319029348 creator A5085925273 @default.
• W4319029348 creator A5088645785 @default.
• W4319029348 creator A5091785776 @default.
• W4319029348 date "2023-03-22" @default.
• W4319029348 modified "2023-09-30" @default.
• W4319029348 title "Bioclastic bottom‐current deposits of a Devonian contourite terrace: Facies variability and depositional architecture (Tafilalt Platform, Morocco)" @default.
• W4319029348 cites W120314113 @default.
• W4319029348 cites W1484975861 @default.
• W4319029348 cites W1495532433 @default.
• W4319029348 cites W1502273417 @default.
• W4319029348 cites W1504029779 @default.
• W4319029348 cites W1507799134 @default.
• W4319029348 cites W1509099186 @default.
• W4319029348 cites W1510066004 @default.
• W4319029348 cites W1553183617 @default.
• W4319029348 cites W1557788436 @default.
• W4319029348 cites W1562869033 @default.
• W4319029348 cites W1565924741 @default.
• W4319029348 cites W1570174540 @default.
• W4319029348 cites W1581571809 @default.
• W4319029348 cites W1603611645 @default.
• W4319029348 cites W161520838 @default.
• W4319029348 cites W1624095966 @default.
• W4319029348 cites W1660043497 @default.
• W4319029348 cites W1668585767 @default.
• W4319029348 cites W1746443254 @default.
• W4319029348 cites W1758021274 @default.
• W4319029348 cites W1766180734 @default.
• W4319029348 cites W1907005196 @default.
• W4319029348 cites W1951906813 @default.
• W4319029348 cites W1964889854 @default.
• W4319029348 cites W1965017547 @default.
• W4319029348 cites W1966205217 @default.
• W4319029348 cites W1967544737 @default.
• W4319029348 cites W1968528302 @default.
• W4319029348 cites W1969282993 @default.
• W4319029348 cites W1970059795 @default.
• W4319029348 cites W1973069645 @default.
• W4319029348 cites W1976329641 @default.
• W4319029348 cites W1977518148 @default.
• W4319029348 cites W1978336852 @default.
• W4319029348 cites W1982205098 @default.
• W4319029348 cites W1982645341 @default.
• W4319029348 cites W1982993466 @default.
• W4319029348 cites W1983411446 @default.
• W4319029348 cites W1987576650 @default.
• W4319029348 cites W1988632867 @default.
• W4319029348 cites W1994270148 @default.
• W4319029348 cites W1995036909 @default.
• W4319029348 cites W1995931713 @default.
• W4319029348 cites W1996024839 @default.
• W4319029348 cites W1996228785 @default.
• W4319029348 cites W1998561141 @default.
• W4319029348 cites W1998766364 @default.
• W4319029348 cites W2001332003 @default.
• W4319029348 cites W2002235997 @default.
• W4319029348 cites W2005662711 @default.
• W4319029348 cites W2007929566 @default.
• W4319029348 cites W2007999437 @default.
• W4319029348 cites W2008831527 @default.
• W4319029348 cites W2010119234 @default.
• W4319029348 cites W2013328420 @default.
• W4319029348 cites W2014936152 @default.
• W4319029348 cites W2017619525 @default.
• W4319029348 cites W2019355929 @default.
• W4319029348 cites W2020011254 @default.
• W4319029348 cites W2020716836 @default.
• W4319029348 cites W2021254835 @default.
• W4319029348 cites W2021364307 @default.
• W4319029348 cites W2021474035 @default.
• W4319029348 cites W2023242078 @default.
• W4319029348 cites W2025308240 @default.
• W4319029348 cites W2027453726 @default.
• W4319029348 cites W2028733027 @default.
• W4319029348 cites W2028904790 @default.
• W4319029348 cites W2031323334 @default.
• W4319029348 cites W2032690492 @default.
• W4319029348 cites W2033756351 @default.
• W4319029348 cites W2033837344 @default.
• W4319029348 cites W2036622817 @default.
• W4319029348 cites W2037146927 @default.
• W4319029348 cites W2037790357 @default.
• W4319029348 cites W2038273791 @default.
• W4319029348 cites W2038771710 @default.
• W4319029348 cites W2042307241 @default.
• W4319029348 cites W2044913996 @default.
• W4319029348 cites W2046115622 @default.
• W4319029348 cites W2050488378 @default.
• W4319029348 cites W2054226696 @default.

• next