Journal articles: 'Resedimented carbonates'

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Rožič, Boštjan, Tea Kolar Jurkovšek, Petra Žvab Rožič, and Luka Gale. "Sedimentary record of subsidence pulse at the Triassic/Jurassic boundary interval in the Slovenian Basin (eastern Southern Alps)." Geologica Carpathica 68, no. 6 (2017): 543–61. http://dx.doi.org/10.1515/geoca-2017-0036.

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AbstractIn the Alpine Realm the Early Jurassic is characterized by the disintegration and partial drowning of vast platform areas. In the eastern part of the Southern Alps (present-day NW Slovenia), the Julian Carbonate Platform and the adjacent, E-W extending Slovenian Basin underwent partial disintegration, drowning and deepening from the Pliensbachian on, whereas only nominal environmental changes developed on the large Dinaric (Friuli, Adriatic) Carbonate Platform to the south (structurally part of the Dinarides). These events, however, were preceded by an earlier - and as yet undocumented extensional event - that took place near the Triassic/Jurassic boundary. This paper provides evidence of an accelerated subsidence from four selected areas within the Slovenian Basin, which show a trend of eastwardly-decreasing deformation. In the westernmost (Mrzli vrh) section - the Upper Triassic platform-margin - massive dolomite is overlain by the earliest Jurassic toe-of-slope carbonate resediments and further, by basin-plain micritic limestone. Further east (Perbla and Liščak sections) the Triassic-Jurassic transition interval is marked by an increase in resedimented carbonates. We relate this to the increasing inclination and segmentation of the slope and adjacent basin floor. The easternmost (Mt. Porezen) area shows a rather monotonous, latest Triassic-Early Jurassic basinal sedimentation. However, changes in the thickness of the Hettangian-Pliensbachian Krikov Formation point to a tilting of tectonic blocks within the basin area. Lateral facies changes at the base of the formation indicate that the tilting occurred at and/or shortly after the Triassic/Jurassic boundary

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Floquet, Marc, and Jérôme Hennuy. "Anatomy of resedimented carbonates in the latest Turonian -earliest Coniacian South-Provencal Basin." Géologie Méditerranéenne 28, no. 1 (2001): 67–71. http://dx.doi.org/10.3406/geolm.2001.1692.

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Rubert, Yolaine, Mohamed Jati, Corinne Loisy, Adrian Cerepi, Gjergji Foto, and Kristaq Muska. "Sedimentology of resedimented carbonates: Facies and geometrical characterisation of an upper Cretaceous calciturbidite system in Albania." Sedimentary Geology 257-260 (June 2012): 63–77. http://dx.doi.org/10.1016/j.sedgeo.2012.02.009.

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Krische, Oliver, Špela Goričan, and Hans-Jürgen Gawlick. "Erosion of a Jurassic ophiolitic nappe-stack as indicated by exotic components in the Lower Cretaceous Rossfeld Formation of the Northern Calcareous Alps (Austria)." Geologica Carpathica 65, no. 1 (2014): 3–24. http://dx.doi.org/10.2478/geoca-2014-0001.

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Abstract The microfacies and biostratigraphy of components in mass-flow deposits from the Lower Cretaceous Rossfeld Formation of the Northern Calcareous Alps in Austria were analysed. The pebbles are classified into six groups: 1) Triassic carbonates (uppermost Werfen to basal Gutenstein Formations), 2) Upper Jurassic to lowermost Cretaceous carbonates (Oberalm Formation and Barmstein Limestone), 3) contemporaneous carbonate bioclasts (?Valanginian to ?Hauterivian), 4) siliceous pebbles (radiolarites, ophicalcites, siliceous deep-sea clays, cherts), 5) volcanic and ophiolitic rock fragments and 6) siliciclastics such as quartz-sandstones and siltstones. The radiolarites show three age groups: Ladinian to Early Carnian, Late Carnian/Norian and Late Bajocian to Callovian. The Middle Triassic radiolarites are interpreted as derived from the Meliata facies zone or from the Neotethys ocean floor, whereas the Late Triassic radiolarites give evidence of the sedimentary cover of the Neotethys ocean floor. During late Early to early Late Jurassic, the Triassic to Early/Middle Jurassic passive margin of the Neotethys attained a lower plate position and became obducted by the accreted ocean floor of the Neotethys Ocean. The accreted ocean floor was contemporaneously eroded and resedimented in different deep-water basins in front of the nappe-stack. These basin fills were subsequently incorporated in the orogen forming mélanges in this complex ophiolitic nappe-stack. The Middle Jurassic radiolarites are interpreted as the matrix of these mélanges. Together with the volcanic and ophiolitic material the siliceous rocks were eroded from this ophiolitic nappe-stack in Early Cretaceous times and brought by a fluvial system to the Rossfeld Basin within the Tirolic realm of the Northern Calcareous Alps. The different fining-upward sequences in the succession of the Lower Cretaceous Rossfeld Formation can be best explained by sea-level fluctuations and decreasing tectonic activity in the Jurassic orogen

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Robertson, A. H. F. "Origin and emplacement of an inferred late Jurassic subduction-accretion complex, Euboea, eastern Greece." Geological Magazine 128, no. 1 (1991): 27–41. http://dx.doi.org/10.1017/s0016756800018021.

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AbstractIn northern Euboea, central eastern Greece, an up to 3 km-thick polygenetic melange (Pagondas complex) is structurally interleaved between a Triassic–Jurassic carbonate platform (Pelagonian Zone) and an overriding harzburgitic ophiolite. The melange mainly comprises late Triassic shallow-water limestone and calciturbidites, radiolarites, Triassic–Jurassic tholeiites, alkaline basalts and minor andesites. The units concerned range from kilometre-sized thrust sheets, and detached blocks, to broken formation and structureless, or bedded matrix-supported conglomerates (diamictite). The melange includes remnants of Neotethyan oceanic lithosphere, overlain by radiolarites, hemipelagic carbonates and distal calciturbidites derived from a Mesozoic carbonate platform. Tholeiites were erupted at a Triassic–Jurassic spreading axis, whilst within-plate-type alkali basalts are interpreted mainly as seamounts. Kilometre-scale detached blocks of shallow-water coralline limestone are identified as collapsed atolls, formed within an ocean and/or along the rifted continental margin. Volcaniclastic sediments are locally interbedded with radiolarite, and reflect post-volcanic erosion of the ocean floor. Intra-oceanic convergence began, apparently in late early Jurassic time, giving rise to the Euboea ophiolite above an inferred westwards-dipping subduction zone. The Pagondas Complex then developed as an accretionary prism. The subduction trench later collided with the Pelagonian passive margin, driving the hot Euobea ophiolite over the accretionary complex, to produce amphibolites and greenschists of the metamorphic sole. Trench–margin collision then drove the entire supra-subduction zone complex, apparently eastwards, downflexing the Pelagonian carbonate platform to form a foredeep in which late Jurassic (Kimmeridgian–Tithonian) radiolarian sediments accumulated. During emplacement, the accretionary complex was disrupted and partly resedimented as debris flows, turbiditic volcaniclastic sandstone and shale in a foredeep, or foreland basin setting.

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Hairabian, Alex, Jean Borgomano, Jean-Pierre Masse, and Sergio Nardon. "3-D stratigraphic architecture, sedimentary processes and controlling factors of Cretaceous deep-water resedimented carbonates (Gargano Peninsula, SE Italy)." Sedimentary Geology 317 (March 2015): 116–36. http://dx.doi.org/10.1016/j.sedgeo.2014.11.001.

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Rožič, Boštjan. "Perbla and Tolmin formations: revised Toarcian to Tithonian stratigraphy of the Tolmin Basin (NW Slovenia) and regional correlations." Bulletin de la Société Géologique de France 180, no. 5 (2009): 411–30. http://dx.doi.org/10.2113/gssgfbull.180.5.411.

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Abstract The succession of the Tolmin Basin forms the foothills of the Julian Alps in northwestern Slovenia. In the Jurassic, it was part of the southern Tethyan passive continental margin. The basin was located between the Dinaric Carbonate Platform in the south and the Julian High in the north. Six sections were studied that encompass the stratigraphic interval from the Toarcian to the lower Tithonian. The basinal background deposits are generally marl, siliceous limestone, and radiolarian chert, whereas in the southern part of the basin resedimented limestones occur. The studied succession lies between the Lower Jurassic Krikov Formation (resedimented and hemipelagic limestones) below and upper Tithonian to Neocomian Biancone Limestone above. Two formations are described in this paper: (1) The Toarcian Perbla Formation was introduced by Cousin [1973] and is revised herein. It is composed of marl and subordinate calcareous shale with rare intercalated calciturbidites. The material was redeposited only within the basin or from its marginal parts. The thickness of the formation varies significantly through the basin from 2 to 135 metres; (2) The Tolmin Formation is herein defined. It is divided into two members. The lower member (Aalenian to lower Bajocian) consists of siliceous limestone and rare chert, whereas the upper member (upper Bajocian to lower Tithonian) is composed of radiolarian chert that locally in the upper part contains abundant marl intercalations. In the southern part of the basin, two intervals of resedimented limestones occur in the Tolmin Formation. The lower interval (lower Bajocian to lower Callovian) is dominated by calcarenite (rich in peloids and ooids) and limestone breccias. The upper interval (upper Kimmeridgian to lower Tithonian) is characterized by calcarenite, composed mostly of intraclasts and bioclasts. The source area of the carbonate material was the Dinaric Carbonate Platform. The correlation of the background sediments with other basins of the western Tethys reveals that (1) the late Toarcian decrease in terrigenous input, the Bajocian change from calcareous to siliceous sedimentation and the late Tithonian onset of carbonate sedimentation are regional and (2) the silica content in the Tolmin Basin was higher than that in the western basins (e.g. the Belluno, Lombardian, Umbria-Marche and Subbetic basins) but lower than that in the Budva Basin. The Bajocian to Callovian resedimented limestones of the Tolmin Basin are much thinner than the corresponding deposits in the Belluno and Budva basins (25 metres vs. up to 600 metres) that bordered the Dinaric Carbonate Platform on the west and southwest respectively. This difference confirms the previously proposed interpretation that most of the carbonate production from the Dinaric Carbonate Platform was transported towards the southwest.

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ΚΑΤΗ, Μ. "Toe-of-slope facies of the Eocene limestones in Aghioi Pantes sequence (Zakynthos island, Western Greece)." Bulletin of the Geological Society of Greece 34, no. 2 (2018): 699. http://dx.doi.org/10.12681/bgsg.17304.

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The facies analysis of the Eocene limestones in the Aghioi Pantes section in central Zakynthos, part of the Preapulian carbonate sequence in the greater area, showed three megafacies types: a) graded beds, in which two main subtypes have been recognized, medium- to thin-bedded calcarenites-calcilutites and thick-bedded ruditic calcarenites, consisting mainly of redeposited shallow-water carbonate sands (mostly bioclasts of nummulites and echinoids); based on their sedimentary structures they have been interpreted as low density turbidite and high density turbidite (or sandy debris flows) deposits correspondingly, b) calcareous conglomerates consisting of shallow-water facies lithoclasts and abundant pelagic intraclasts all of which have been interpreted as debris flow deposits and c) folded strata of pelagic-hemipelagic composition that have been interpreted as slumps. Subsequently, the studied limestones constitute exclusively deep-water resedimented facies having been deposited mainly through sediment gravity flows, carrying significant amounts of shallow-water bio- lithoclastic material. The distribution and the organization of this facies association, with the dominance in particular of the base cut-out turbidites, suggest as depositional environment of the studied Eocene limestones a "low" in the outer slope connecting the Preapulian platform with the adjacent Ionian basin.

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d'Atri, A., F. Dela Pierre, R. Lanza, and R. Ruffini. "Distinguishing primary and resedimented vitric volcaniclastic layers in the Burdigalian carbonate shelf deposits in Monferrato (NW Italy)." Sedimentary Geology 129, no. 1-2 (1999): 143–63. http://dx.doi.org/10.1016/s0037-0738(99)00098-6.

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Molina, José Miguel, and Juan Antonio Vera. "Resedimented carbonate and volcanic rocks in the Berriasian-Hauterivian of the Subbetic (Alamedilla, Betic Cordillera, southern Spain)." Cretaceous Research 29, no. 5-6 (2008): 781–89. http://dx.doi.org/10.1016/j.cretres.2008.05.023.

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de Oliveira Nardi Leite, Caroline, Carlos Manuel de Assis Silva, and Luiz Fernando de Ros. "Depositional and diagenetic processes in the pre-salt rift section of a Santos Basin area, SE Brazil." Journal of Sedimentary Research 90, no. 6 (2020): 584–608. http://dx.doi.org/10.2110/jsr.2020.27.

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ABSTRACT This study aims to provide a better understanding of the genesis and diagenetic evolution of the rift pre-salt deposits of the Santos Basin, in the context of evolution of the lake system in which the sediments were deposited. The study of the syngenetic and early diagenetic constituents and their paragenetic relations allowed reconstruction of the evolution of lacustrine environmental conditions during the rift stage in the central area of the basin. A petrological study was performed on cores and sidewall samples of a well drilled through the pre-salt rift section in the Lower Cretaceous of the central Santos Basin, eastern Brazilian coast. The studied rocks consist of carbonate and non-carbonate intrabasinal components, with extrabasinal non-carbonate contribution. During Barremian early rift sedimentation, intense syngenetic precipitation of magnesian clay minerals under highly alkaline conditions deposited arenites constituted by stevensite ooids and peloids, as well as hybrid, resedimented deposits of the Piçarras Formation. Freshening of the lacustrine environment provided the conditions required for the proliferation of bivalves and sedimentation of the coquinas of the Itapema Formation. The massive structure of the deposits, poor sorting, chaotic to concave-up orientation of the bioclasts, and mixing of bivalves with stevensite particles indicate redeposition by gravity flows. The main diagenetic processes in rift stevensite and hybrid rocks are the cementation and replacement of grains by calcite, dolomite, and subordinately, silica and smectite. Siliciclastic-volcaniclastic mudrocks present intense replacement by dolomite. In the bivalve rudstones, the main diagenetic processes were dissolution of the shells and cementation of the intraparticle and interparticle pores by calcite and, subordinately, dolomite and silica.

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Tâmega, Frederico Tapajós de Souza, Paula Spotorno-Oliveira, Paula Dentzien-Dias, et al. "Palaeoenvironmental dynamics of Holocene shoreface bryoliths from the southern coast of Brazil." Holocene 29, no. 4 (2019): 662–75. http://dx.doi.org/10.1177/0959683618824739.

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Beds of free-living coated nodules (coralline algae, bryozoans, acervulinid foraminifera) create shallow-water carbonate biogenic benthic habitats, which are sensitive to human disturbance and slow to recover. Holocene bryoliths, ranging from sub-spheroidal, sub-discoidal to sub-ellipsoidal in shape, were found scattered in the foredunes in ca. 30-km stretch along the Hermenegildo and Concheiros do Albardão beaches on the southernmost coast of Brazil (Santa Vitória do Palmar municipality, Rio Grande do Sul State). The dominating bryozoan species forming the bryolith is Biflustra holocenica Vieira, Spotorno-Oliveira and Tâmega sp. nov. The inner bryolith arrangement, generally asymmetrical, shows multilamellar and circumrotatory growth of colonies that envelop the bivalve Ostrea puelchana. Bryozoans and subordinate corals characterize the outer bryolith surfaces. The ichnogenera Gastrochaenolites (made by the boring bivalve Lithophaga patagonica) and Caulostrepsis occur throughout the bryoliths, from the inner part up to the outer surface. The studied bryoliths, originated in a shoreface setting at ca. 7910–7620 cal. yr BP and during subsequent storm waves, were resedimented onto the foreshore and foredunes (to ca. 5700 cal. yr BP) where the bryoliths were finally fossilized.

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Zöhrer, Oliver, Gawlick Hans-Jürgen, George Pleş, Milan Sudar, and Divna Jovanovic. "Microfacies and biostratigraphy of an Upper Triassic Dachstein limestone fore-reef block in the Jurassic Sirogojno carbonate-clastic Mélange (Zlatibor Mt., SW Serbia)." Annales g?ologiques de la Peninsule balkanique 82, no. 1 (2021): 27–45. http://dx.doi.org/10.2298/gabp210518003z.

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In the late Middle to early Late Jurassic carbonate-clastic Sirogojno Melange in the Zlatibor Mountain there is one roughly 35 m thick overturned block with an intact Late Triassic fore-reefal Dachstein Limestone succession studied for its biostratigraphic age, content and microfacies characteristics. The succession starts with coarse-grained rudstones followed by meter-sized reefal blocks intercalated in partly layered resedimented grainstones and packstones with abundant reef-building organisms like calcareous sponges, corals and encrusting organisms. Inside this part of the succession open-marine influenced layers are rare. The succession continues with a partly turbiditic sequence and chaotic rudstones, densely packed with reef-derived material like broken reefbuilding organisms and shallow-water material like gastropods, bivalves and foraminifers. Grainstones with clear open-marine influence (e.g., thin-shelled bivalves, crinoids, conodonts) appear in between those rudstones, in cases lumachelle layers be composed of halobiids were deposited. To the end of the succession some layers show turbiditic bedding with mixed shallow-water and deep-marine grains and organisms, i.e. filaments and crinoids. On base of conodonts, foraminifers, calcareous algae, holothurians and halobiids throughout the whole studied succession, a middle Norian (Alaunian) to Rhae tian 1, most probably a late Norian (Sevatian) age can be assigned to this fore-reefal Dachstein Limestone succession, with a similar sedimentation pattern like Late Triassic Dachstein fore-reef limestone facies, e.g., in the Northern Calcareous Alps or the eastern Southern Alps. The study of this block in the Sirogojno Melange closes an important gap in knowledge about the extent, facies and stratigraphy of the Dachstein Carbonate Platform evolution in the Dinarides.

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Szabo, John P., and Pierre W. Bruno. "Interpretation of lithofacies of the Ashtabula Till along the south shore of Lake Erie, northeastern Ohio." Canadian Journal of Earth Sciences 34, no. 1 (1997): 66–75. http://dx.doi.org/10.1139/e17-006.

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The final advance of the Erie lobe into Ohio during the Port Bruce Stade of the Late Wisconsinan deposited the Ashtabula Till. Wave erosion and mass wasting along the south shore of Lake Erie show that the Ashtabula Till consists of laterally traceable lithofacies, which are used to determine the depositional history of the Ashtabula Till. At each section, lithofacies sequences are divided into two sub-sequences, each consisting of massive, matrix-supported diamicton (Dmm) overlain by stratified, matrix-supported diamicton (Dms). Some Dmm are sheared (Dmm(s)) and are interpreted as lodgement till, whereas other Dmm and Dms were deposited as melt-out till. Some sections contain lenses of fines (Fm and Fl), current-reworked diamictons (Dmm(c) and Dms(c)), and resedimented diamictons (Dmm(r) and Dms(r)). The two sub-sequences represent two advances of Ashtabula ice that deposited the Euclid and Painesville moraines about a kilometre apart. During and after recession of the Ashtabula ice, waves and currents in Lake Maumee and its successors reworked outwash and diamictons to form the lake plain. The texture of Dmm(s) is significantly different from that of most other diamictons, and Dmm has the smallest carbonate content of all diamictons. Analysis of the variations in texture and composition among lithofacies provides additional evidence of the effectiveness of lithofacies logging in interpretation of glacial processes.

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Gawlick, Hans-Jürgen, Roman Aubrecht, Felix Schlagintweit, Sigrid Missoni, and Dušan Plašienka. "Ophiolitic detritus in Kimmeridgian resedimented limestones and its provenance from an eroded obducted ophiolitic nappe stack south of the Northern Calcareous Alps (Austria)." Geologica Carpathica 66, no. 6 (2015): 473–87. http://dx.doi.org/10.1515/geoca-2015-0039.

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Abstract The causes for the Middle to Late Jurassic tectonic processes in the Northern Calcareous Alps are still controversially discussed. There are several contrasting models for these processes, formerly designated “Jurassic gravitational tectonics”. Whereas in the Dinarides or the Western Carpathians Jurassic ophiolite obduction and a Jurassic mountain building process with nappe thrusting is widely accepted, equivalent processes are still questioned for the Eastern Alps. For the Northern Calcareous Alps, an Early Cretaceous nappe thrusting process is widely favoured instead of a Jurassic one, obviously all other Jurassic features are nearly identical in the Northern Calcareous Alps, the Western Carpathians and the Dinarides. In contrast, the Jurassic basin evolutionary processes, as best documented in the Northern Calcareous Alps, were in recent times adopted to explain the Jurassic tectonic processes in the Carpathians and Dinarides. Whereas in the Western Carpathians Neotethys oceanic material is incorporated in the mélanges and in the Dinarides huge ophiolite nappes are preserved above the Jurassic basin fills and mélanges, Jurassic ophiolites or ophiolitic remains are not clearly documented in the Northern Calcareous Alps. Here we present chrome spinel analyses of ophiolitic detritic material from Kimmeridgian allodapic limestones in the central Northern Calcareous Alps. The Kimmeridgian age is proven by the occurrence of the benthic foraminifera Protopeneroplis striata and Labyrinthina mirabilis, the dasycladalean algae Salpingoporella pygmea, and the alga incertae sedis Pseudolithocodium carpathicum. From the geochemical composition the analysed spinels are pleonastes and show a dominance of Al-chromites (Fe3+–Cr3+–Al3+ diagram). In the Mg/(Mg+ Fe2+) vs. Cr/(Cr+ Al) diagram they can be classified as type II ophiolites and in the TiO2 vs. Al2O3 diagram they plot into the SSZ peridotite field. All together this points to a harzburgite provenance of the analysed spinels as known from the Jurassic suprasubduction ophiolites well preserved in the Dinarides/Albanides. These data clearly indicate Late Jurassic erosion of obducted ophiolites before their final sealing by the Late Jurassic–earliest Cretaceous carbonate platform pattern.

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Beverly Halliwell Hazlett, John E. "Shelf-to-Basin Resedimented Carbonates of the Southern Margin of the Jurassic Central High Atlas Trough, Morocco: ABSTRACT." AAPG Bulletin 72 (1988). http://dx.doi.org/10.1306/703c9537-1707-11d7-8645000102c1865d.

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Mascolo, V., and I. Lecomte. "Seismic modelling of outcrop carbonate systems: an application to the Cretaceous platform-to-basin system of the Maiella Mountain (Central Apennines, Italy)." Geological Society, London, Special Publications, November 20, 2020, SP509–2019–81. http://dx.doi.org/10.1144/sp509-2019-81.

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AbstractForward seismic models of outcrop analogues are used in hydrocarbon exploration to generate more coherent geological-geophysical models that provide an important scale link between outcrops and seismic survey data. Exploration within slope carbonate plays can be problematic with uncertainties about the reservoir geometries, distribution and volumes due to complex seismic imaging and lack of closely-spaced wells. This seismic modelling study provides a synthetic seismic characterization of the carbonate platform-to-slope-to-basin transition exposed across the Maiella Mountain, central Italy. This outcrop represents an analogue for exploration in carbonate slope strata in the Adriatic offshore area. Integration of original and previously published data allows 2D and 3D geological modelling, providing a better characterization of relationships between the paleoescarpment and resedimented deposits. The seismic response of the various geological features of this transitional carbonate system is simulated via synthetic seismic modelling by using innovative, modern techniques. The seismic simulation was performed in both post-stack-time- and pre-stack-depth-migrated domains. These synthetic seismic models help understand and predict seismic architecture and character of the paleoescarpment and resedimented slope deposits.

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David T. King, Jr. "Waulsortian-Type Buildups and Resedimented (Carbonate-Turbidite) Facies, Early Mississippian Burlington Shelf, Central Missouri." SEPM Journal of Sedimentary Research Vol. 56 (1986). http://dx.doi.org/10.1306/212f8959-2b24-11d7-8648000102c1865d.

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Basilone, Luca. "Sequence stratigraphy of a Mesozoic carbonate platform-to-basin system in western Sicily." Open Geosciences 1, no. 3 (2009). http://dx.doi.org/10.2478/v10085-009-0021-8.

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AbstractSequence stratigraphic studies of the Triassic through Paleogene carbonate successions of platform, slope and basin in western Sicily (Palermo and Termini Imerese Mountains) have identified a sedimentary cyclicity mostly caused by relative oscillations of sea level. The stratigraphic successions of the Imerese and Panormide palaeogeographic domains of the southern Tethyan continental margin were studied with physical-stratigraphy and facies analysis to reconstruct the sedimentary evolution of this platform-to-basin system.The Imerese Basin is characterized by a carbonate and siliceous-calcareous succession, 1200–1400m thick, Late Triassic to Eocene in age. The strata display a typical example of a carbonate platform margin, characterized by resedimented facies with progradational stacking patterns. The Panormide Carbonate Platform is characterized by a carbonate succession, 1000–1200 m thick, Late Triassic to Late Eocene, mostly consisting of shallow-water facies with periodic subaerial exposure.The cyclic arrangement has been obtained by the study of the stratigraphic signatures (unconformities, facies sequences, erosional surfaces and stratal geometries) found in the slope successions. The recognized pattern has been compared with coeval facies of the shelf. This correlation provided evidence of sedimentary evolution, influenced by progradation and backstepping of the shelf deposits.The stratigraphic architecture of the platform-to-basin system is characterized by four major transgressive/regressive cycles during the late Triassic to late Eocene.These cycles, framed in a chronostratigraphic chart, allows the correlation of the investigated shelf-to-basin system with the geological evolution of the African continental margin during the Mesozoic, showing tectono-eustatic cycles. The first cycle, encompassing the late Triassic to early Jurassic, appears to be related to the late syn-rift stage of the continental margin evolution. The following three cycles, spanning from the Jurassic to Eocene, can be related to the post-rift evolution and to thermal subsidence changes.

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ZEMPOLICH, WILLIAM G., and ELISABET. "Sedimentologic and Chemo-Stratigraphic Recognition of Third-Order Sequences in Resedimented Carbonate: The Middle Jurassic Vajont Limestone, Venetian Alps, Italy: ABSTRACT." AAPG Bulletin 81 (1997) (1997). http://dx.doi.org/10.1306/1d9bc327-172d-11d7-8645000102c1865d.

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Journal articles on the topic 'Resedimented carbonates'

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