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The post-volcanic carbonate platform (Fig. 12) is mainly consisting in slope facies, with a dip angle locally decreasing with respect to the pre-volcanic slope, and a narrow (about 40 m), bio-constructed margin belt. Inner platform succession has a mean thickness of 50 m and pinches out toward the margin belt. In the basin, a pelagic ...The Upper Cretaceous carbonate platform successions preserved in the peri-Adriatic region are mainly made up of well-bedded peritidal to shallow-subtidal limestones, commonly organized in meter-scale cycles (Borgomano, 1987, Borgomano, 2000, Vlahović et al., 2005, Spalluto, 2012, Le Goff et al., 2015b).This monotonous sedimentation pattern is interrupted several times during the Late ...@article{osti_5857813, title = {Carbonate platform facies models}, author = {Read, J F}, abstractNote = {Various types of carbonate platforms are characterized by distinctive profiles, facies, and evolutionary sequences. Ramps may be homoclinal or distally steepened, and may have fringing or barrier shoal-water complexes of ooidpellet sands or skeletal banks.Carbonate platforms spanning intervals of global change provide an opportunity to identify causal links between the evolution of marine environment and depositional architecture. This study investigates the controls on platform geometry across the Palaeozoic to Mesozoic transition and yields new stratigraphic and palaeoenvironmental constraints ...This study relies on data from several outcrop localities in the Maltese Islands and exploratory oil wells and favours an isolated carbonate platform model developed on fault-bounded synrift highs ...The Pine Island Shale records carbonate platform biologic community collapse and drowning associated with the combined effects of ocean anoxic event (OAE) 1A and transgression in the early Aptian ...carbonate s. When this climate is arid then high rates of evaporation and the deposition of evaporites (either supratidal or subaqueous) are a common response. . Karstification of exposed carbonate platforms may occur during sea level lowstand by rainfall in humid regions (James andmixotrophs) that need good light conditions and live in Classification of carbonate platforms is not just a shallow-water environments (the euphotic zone). This ...Jul 16, 2015 · Most carbonate sediments originate on a shallow-water platform, shelf, or ramp and are transported landward and basinward. "Platform" is a general term for the shallow-water environment, whereas "shelf" and "ramp" refer to topography—shelves with flat platform tops and steep foreslopes and ramps having gently dipping platform tops and ... We identify the seismic characteristics about the carbonate platform and other types of reefs in the Reed Bank area, South China Sea, based on a more than 220 km long multi-channel seismic ...Carbonate platform and reservoir strata are very susceptible to dissolution that can create seismic-scale features such as palaeokarst. The seismic expressions of epikarst have been studied for a long time . Recent advances stem from reservoirs associated with major unconformities such as the Middle Ordovician in China and Texas, or the ... Sep 1, 2021 · Chattian carbonate platform is composed of a high variety of carbonate producing (Stages I, II, and III), representing a fore-Stepping stacking pattern. Aquitanian Carbonate Platform is a soft-grained carbonate ramp with a low-angle gradient comprising two different Stages: IV and V. The Burdigalian platform (Stage VI) is composed of meters to ... The Triassic carbonate-platform deposits have a different dominant biogenic mineralogy (aragonite rather than calcite) and a different architecture to the bryozoan-crinoidal carbonate mounds present in the Permian of EGIRA in Timor-Leste. No Lower and Middle Triassic shallow-water carbonate-platform deposits have been recognized in Timor-Leste.Carbonate Platform; Carbonate Ramp; Shelf Carbonate; These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves. Download chapter PDF Basics: Classification of carbonate environments and obligatory reading. ...This study presented recently reprocessed multi-channel seismic data and multi-beam bathymetric map to reveal the geomorphology and stratigraphic architecture of the Yongle isolated carbonate platform in the Xisha Archipelago, northwestern South China Sea. Our results show that the upper slope angles of Yongle carbonate platform exceed 10° and even reach to ∼32.5° whereas the lower slope ...The Pine Island Shale records carbonate platform biologic community collapse and drowning associated with the combined effects of ocean anoxic event (OAE) 1A and transgression in the early Aptian ...The Anguilla Bank is the largest carbonate platform (area of about 4,660 km 2, Table 1). The data reveals that the carbonate platform is not protected by shelf-edge barriers along most of its rim. Indeed, bathymetric highs are only visible east of Saint-Barthélémy and scarcely visible on the northeastern edge of the bank . However, the lack ...Platform flooding is the first-order prerequisite controlling platform-top sediment production and subsequent sediment export of tropical carbonate platforms (Schlager et al., 1994; Jorry et al ...Carbonate platforms usually keep pace with subsidence and sea level rise but “platform drowning” occurs when carbonate sedimentation slows or when siliciclastics replace carbonates. Identifying specific mechanism(s) behind platform drowning is critical for understanding global environmental changes such as Ocean Anoxic Events (OAEs). ...Nov 10, 2020 · The carbonate platform records the deposition of green algal grainstone, coated grain grainstone and bioclastic packstone, grainstone, floatstone and rudstone in shallow-waters, and burrowed bioclastic wackestone, microbioclastic peloidal packstone and grainstone, and fine-grained burrowed wackestone and packstone in the deep-water shelfal ... Evaluating geothermal convection during the progressive accumulation of a carbonate platform, even with a relatively low-temporal resolution, shows dramatic differences in predicted quantity and distribution of dolomite (compare Figures 5 and 6). Platform growth affects the distribution of geothermal dolomite in two important ways.Ginsburg, R. N. inSubsurface Geology of a Prograding Carbonate Platform Margin, Great Bahama Bank: Results of the Bahamas Drilling Project Vol. 70, ed. Ginsburg R. N. 61-100SEPM Special ...May 10, 2022 · The study area is located in the distal margin of the northern South China Sea (SCS), which ranges from shallow carbonate platforms to deep-sea basins . The Zhongsha Atoll (ZA) is the largest single atoll system of the SCS, forming a unique isolated carbonate platform situated in the study area. Isolated carbonate platforms and buildups of the Likas Formation provide a long record of carbonate sedimentation in the southern end of the Southwest Palawan Basin. While most carbonate platforms terminated in early Miocene and middle Miocene time in northern parts of western offshore Palawan (i.e. Northwest Palawan Basin and centralThe uppermost Anisian and the Lower Ladinian are dominated by thick isolated carbonate platforms (Sciliar Fm; Bosellini, 1984).Detailed facies analysis of many of these bodies is prevented by the late diagenetic dolomitisation, but several other edifices preserve their calcareous facies (e.g. Marmolada and Latemar platforms; Leonardi, 1967, Bosellini and Rossi, 1974, Gaetani et al., 1981 ...The Oligocene-Miocene is a key interval that was characterized by a cooling trend associated with a progressive decrease of atmospheric CO 2 concentrations that ends in the Present days.. In the Central Mediterranean area, during this interval, three main carbonate platform domains developed in the foreland zone of the Apennines: the Latium-Abruzzi-Campana and Apulia domain in the central and ...Carbonate platforms of extensional margins may be grouped into several major categories. Homoclinal ramps have gentle slopes into deep water, may have skeletal or ooid/pellet sand shoal complexes, that grade without break in slope into deep-ramp nodular limestone, and then into pelagic/hemipelagic basin facies they generally lack significant slump and sediment gravity flow deposits in the ...Carbonate platforms are mainly distributed in tropical and subtropical low-latitude ocean shallow water areas, and their growth and development are very sensitive to environmental changes, such as water depth, temperature, waves, salinity, dissolved oxygen, sediment and nutrients [1,2,3,4].Changes in any of these controlling factors may alter the sedimentary structures of carbonate rocks and ...A carbonate platform is a sedimentary body which possesses topographic relief, and is composed of autochthonic calcareous deposits. [1] Platform growth is mediated by sessile organisms whose skeletons build up the reef or by organisms (usually microbes) which induce carbonate precipitation through their metabolism.Backstepping of carbonate platform margins is an important process for understanding how carbonate platform responds to paleoenvironment changes. The products of backstepping, such as backstepped margin, backstepping surface and backstepping succession have been widely documented on both modern and ancient platforms around the world.The Upper Cretaceous carbonate platform successions preserved in the peri-Adriatic region are mainly made up of well-bedded peritidal to shallow-subtidal limestones, commonly organized in meter-scale cycles (Borgomano, 1987, Borgomano, 2000, Vlahović et al., 2005, Spalluto, 2012, Le Goff et al., 2015b).This monotonous sedimentation pattern is interrupted several times during the Late ...Carbonates of Central Luconia, Malaysia, had been serving as hydrocarbon reservoirs for more than 25 years. However, the relationship and impacts of extensive tectonic events to the growth of Miocene carbonates in Central Luconia have not been revealed sufficiently. In this work, two carbonates platforms in the southern part of Central Luconia were used for detailed interpretation and seismic ...Geologists can now characterize entire carbonate platform systems and their large-scale evolution in time and space, including systems with few outcrop analogues such as the Lower Cre-taceous Central Atlantic 'pre-salt' carbonates. The papers introduced in this review illustrate opportunities,carbonate platforms and reservoirs were beco ming more widely available, but before many of the . major improvements in seismic acquisition (e.g. incre ased bandwidth and illumination), processingThe uppermost Anisian and the Lower Ladinian are dominated by thick isolated carbonate platforms (Sciliar Fm; Bosellini, 1984).Detailed facies analysis of many of these bodies is prevented by the late diagenetic dolomitisation, but several other edifices preserve their calcareous facies (e.g. Marmolada and Latemar platforms; Leonardi, …May 7, 2022 · The Central Mediterranean hosted several large (> 100 km) carbonate platforms from the Mesozoic to the Paleogene (Kiessling and Golonka 2003).Carbonate ramps developed along the North African continental margin from Tunisia (Racey 2001) to Libya (Swei and Tucker 2012) whereas isolated carbonate platforms aggraded in pericratonic settings, e.g., the Hyblean platform of SE Sicily (Grasso and ... The Lansdowne Bank is a partly drowned, isolated carbonate platform of around 4000 km 2 located 300 km west of New Caledonia, in the SW Pacific Ocean, in water depths of 20 to 100 m. New multibeam bathymetric data, high resolution seismic reflection profiles and sediment gravity cores have been acquired on the bank top and adjacent slopes. This dataset reveals an almost continuous 4 km wide ...We studied the Otavi Group (), a carbonate platform covering the southern promontory of the Congo Craton in northern Namibia (15,18, 19).In the late Neoproterozoic, the Congo Craton was a Bahama-type sea-level platform that was about the size of the conterminous United States.The sedimentary environments in the study area gradually changed through time from a clastic tidal flat to a carbonate platform across the transition, which indicated a gradual rise in sea level, with anoxic conditions occurring predominantly before the RECE δ13C excursion. Microbially induced sedimentary structures and oncoids occurred widely ...Carbonate platforms are among the most important archives of Earth's biological and chemical histories and hold approximately half of the world's conventional petroleum reservoirs. Understanding the biologic, chemical and physical controls on carbonate platform architecture and facies distribution is therefore critical to interpreting the ...A comprehensive study on the accretion and diagenesis of the Permian-Triassic boundary microbialites is conducive to a better understanding of the ecological community after the end-Permian mass extinction. Here we studied the special microbialite sequences at the Tianba section of Leye isolated carbonate platform, South China Block. The microbialites are shown as small columnar ...Special Publication 509 Modern seismic data have become an essential toolkit for studying carbonate platforms and reservoirs in impressive detail. Whilst driven primarily by oil and gas exploration and development, data sharing and collaboration are delivering fundamental geological knowledge on carbonate systems, revealing platform geomorphologies and how their evolution on millennial time ...The Adriatic Carbonate Platform (AdCP) is one of the largest Mesozoic carbonate platforms of the Perimediterranean region. Its deposits comprise a major part of the entire carbonate succession of ...Comparatively, reef carbonate platform growth was more active in the middle Miocene and then in the Plio-Pleistocene, especially during interglacial periods. The lithobiostratigraphic and geochemical characteristics of carbonate succession recovered in well XK1 shed light on the history of carbonate platform development in the region. The carbonate platform system began to developSimilar carbonate fabrics may result from different pathw During the Aptian-Albian transition, an extensional phase of the Central Atlantic which affected the Prebetic carbonate platform (South Iberian Continental Margin, northwestern margin of the Tethys) occurred. A graben morphology was developed in the platform coeval to a relative sea level fall. As a consequence, palustrine facies characterized by rhizoliths and some pond deposits of black ...Calcium carbonate formation is the primary pathway by which carbon is returned from the ocean–atmosphere system to the solid Earth1,2. ... (platform, ramp and reef) carbonate burial sink and an ... The Devonian carbonate platforms from Cann The Shanganning Carbonate Platform (SCP) of the North China Craton (NCC) was located in the Trade Winds belt during the Cambrian, which influenced its facies development. In recent years, numerous drillcores have been recovered from these units, but the depositional environments and facies architecture of this large (~2.0 × 10 5 km 2) carbonate platform system have not yet been reported in ... A key challenge regarding development of carbonate plat...

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A key challenge regarding development of carbonate platforms is predicting the temporal pattern of platform-margin progradation, aggradati...

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Abstract Multichannel high‐resolution seismic and multibeam data were acquired from the Maldives‐isolated carbonate platform in the Indian ...

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Geologists can now characterize entire carbonate platform systems and their large-scale evolution in time and space, includi...

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The Murge plateau is the central part of the thick carbonate Mesozoic sequence of the Apulian...

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Pelagic carbonate platforms (PCPs) are submarine highs that are drowned fragments of an ancestor regio...

Want to understand the Carbonate Reservoirs. In Developments in Sedimentology, 2001. The mature hydrologic phase: regional meteoric water systems developed duri?
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