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Showing 1 to 20 of 23 for “"Sublittoral"”.
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A preliminary account of investigations into the False Bay sublittoral by the use of a diving helmet
… the biotic between tidelevels, i.e., from the sublittoral fringe upward. it did not take into account the sublittoral, that part of the shallow coast which is perpetually submerged at all tides.
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A preliminary account of investigations into the False Bay sublittoral by the use of a diving helmet
… the biotic between tidelevels, i.e., from the sublittoral fringe upward. it did not take into account the sublittoral, that part of the shallow coast which is perpetually submerged at all tides.
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Depositional history and diagenesis of the upper Mission Canyon and lower Charles Formations (Mississippian), Billings County, North Dakota
… the study area. </p><p>Deposition took place in sublittoral, littoral and supralittoral environments in a shallow, low-energy, epeiric-sea setting. The depositional history is characterized by 4 successive stages: 1) sublittoral deposition under shallow normal marine conditions; 2) sublittoral …
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Depositional environments, ichnology and diagenesis of the upper Frobisher-Alida beds of the Elkhorn Ranch and Roughrider fields of western North Dakota
… follow a depositional sequence of thick units of sublittoral carbonates, followed by a thin sequence of littoral carbonates, and culminating in a thick unit of sublittoral evaporites. Sublittoral rocks dominate the basal lithologies throughout the study area. Depositional environments illustrate a …
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Storm-dominated Lower Cambrian depositional environments in the Ravenswood area, Lander County, Nevada
… are interpreted to represent marine, littoral to sublittoral environments including offshore bars, sheet deposits (proximal, intermediate, distal), patch reefs, and storm-surge ebb channels; The lithology, paleontology, and sedimentary structures reflect deposition in a wave-dominated or …
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Depositional environments and diagenesis, Interlake Formation (Silurian), Williston Basin, North Dakota
… lithotypes representing deposition in low-energy sublittoral, high-energy sublittoral, littoral, and supralittoral epeiric sea environments. In addition, paleosols are present, </p><p> Rocks that represent low-energy sublittoral environments contain abundant skeletal allochems, some in growth …
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Facies, stratigraphy, and mineralogy of the carbonate marker and D marker units, lower Green River Formation, Uinta Basin, Utah
… These include delta, mudflat, shoal complex, and sublittoral deposits. Facies associations were incorporated into a lacustrine depositional model to track transgressive and regressive periods in the lake. Five transgressive-regressive cycles were identified within the Carbonate Marker Unit and two …
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Diagenesis and porosity development of the Mission Canyon and Charles Formations (Mississippian), Treetop and Whiskey Joe Fields, North Dakota
… mudstone, and 6) anhydrite which represent sublittoral, littoral, and supralittoral depositional environments. </p><p> Numerous diagenetic processes were active in the upper Mission Canyon and lower Charles Formation rocks. Processes include micritization, compaction, dolomitization, …
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Ciclo reprodutivo, gametogênese e desenvolvimento larval de Asterina stellifera (Möbius, 1859) (Echinodermata: Asteroidea) na região de Cabo Frio, RJ
… at Japonês lsland ( 1994-1995); the second is a sublittoral rocky-shore at Pontal Beaches ( 1999-2000). Development pattern was described based on laboratory cultures. Reproductive cycle was studied at monthly intervals by organ indices and histological examinations of gonads. A. stellifera has a …
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Relation of crystalline style function to food availability and environmental conditions in South African mussels
… and often dominant organisms on the littoral and sublittoral shores of the South Africa. M. galloprovincialis has only recently been identified as a separate species, but a cons1derable body of information exists on the physiology and energetics of c. meridionalis, P. perna and A. ater. However, …
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Deposition and diagenesis of a portion of the Frobisher-Alida Interval (Mississippian Madison Group), Wiley Field, North Dakota
… but LF-6 were deposited in a low-energy, shallow sublittoral, marine setting. The siliciclastic sandstone-siltstone lithoracies {LF-6) was deposited by eolian processes as a silici clastic-dominated sabkha. </p><p> Facies within the Glenburn bed are stacked vertically rather than prograding either …
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Depositional systems, sequence architecture, and controlling factors of an Eocene stratigraphic sequence at Minfeng steep margin of Dongying depression, eastern China
… basin size with most widespread profundal-sublittoral deposits, but limited fan development. LCST is the thinnest with poorly-developed fan systems, and characterized by significant erosion at basin margin by fluvial incision during lake latest contraction. The differential thickness and …
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Stratigraphy and depositional environments of the Three Forks Formation (Upper Devonian), Williston Basin, North Dakota
… in supralittoral, littoral, and low-energy sublittoral environmen~s. These environments were formed approximately parallel to the periphery of the basin. Of the three energy zones depicted for an epeiric sea depositional setting, the Three Forks is interpreted to have been deposited solely …
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Trophic polymorphism in the Arctic charr (Salvelinnus alpinus (L.)) of Lochs Rannoch, Ericht and Tay, Scotland
… of the loch, the piscivorous morph spawned in sublittoral regions of the east basin of the loch and the planktivorous morph spawned in shallow littoral regions throughout the loch but mainly in the east basin. Outwith the spawning period benthivorous and piscivorous charr were restricted to the …
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Benthic habitats in a tide-swept channel of the Pentland Firth and their potential responses to a tidal energy development
This thesis investigates sublittoral epibenthic assemblages, the ecological processes associated with distributions of benthic assemblages and potential ecological impacts arising from the de- ployment of tidal energy devices (TEDs) at a key tidal energy development site. An extensive field …
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The Microbiostratigraphy of the Paiaeocene of the Northwest European Continental Shelf
… probably representative of the socalled "outer sublittoral" biofacies of King, 1983. Evidence for progressive deepening of water depth towards the north of the area and mto the Silver Pit Basin was noted. The microfaunal assemblages from the offshore boreholes are similar in overall character to …
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Paleontology and stratigraphy of the Niobrara Formation (Upper Cretaceous) of eastern North Dakota with emphasis on the calcareous nannoplankton
… The Niobrara was deposited in shallow to deep sublittoral depths. Shifts from anaerobic to aerobic bottom water conditions, and vice versa, were the result of changes in water level that, in turn, controlled the position of the pycnocline (aerobic anaerobic boundary) in a stratified water …
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Historical Records And Current Status Of Fucales (Cystoseira and Sargassum spp.) In The Gulf of Naples
… species richness and distribution in shallow sublittoral stands. Another mechanic pressure that can act on deep species is the intense fishing activities performed with fishing gears. Probably the interaction between the physic damage and the increase of water turbidity, related to a high …
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