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Showing 1 to 20 of 29 for “"non-marine"”.
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Variation Studies of Non-Marine Pelecypods From the Upper Carboniferous of Eastern North America
Made available in DSpace on 2014-12-04T19:13:35Z (GMT). No. of bitstreams: 1 0023351.pdf: 9640916 bytes, checksum: ed43aab701e2696783ba5b3a236dfded (MD5) Previous issue date: 1957
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The Effect of Non-Marine vs. Marine Sources of the Omega-3 Fatty Acids, DHA and EPA, on Serum Lipoproteins
Background: Fish oil (FO) is a marine source of n-3 fatty acids, eicosapentaenoic acid (EPA) and docosahexanaenoic acid (DHA), and has been shown to improve heart health.;Objective: The purpose of this study was to determine the cardiovascular effects of non-marine sources of n-3 fatty acids, algae …
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Depositional conditions, stratigraphic evolution, and allo- and autogenic controls of lower Permian non-marine carbonate rocks, Lucaogou low-order cycle, Bogda Mountains, NW china
<p>"The overall objective of this study is to interpret the depositional conditions of lacustrine carbonate deposits of the lower Permian Lucaogou low-order cycle in the greater Turpan-Junggar continental rift basin, NW China. The depositional environments of ten carbonate lithofacies in the …
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The micropaleontology and stratigraphy of the subsurface "Heath" formation (Mississippian-Pennsylvanian) of western North Dakota
… <p>The fauna of the “Heath” Formation includes non-marine ostracodes, with which this study is primarily concerned, and non-marine pelecypods and syncarid crustaceans which occur in units intertonguing with strata containing marine brachiopods and pelecypods. Fossils occurring above the …
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Understanding the theatre of terrestrialization: Silurian-Devonian sedimentary landscapes and continental ecosystems
The colonization of subaerial and non-marine landscapes (“terrestrialization”) by animals and plants was a defining and irreversible innovation during the co-evolution of Earth and its biosphere. Its timing, estimated through ichnological evidence, suggests Cambro-Ordovician excursions were …
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The Alberta Oil Sands
… world. The oil sand deposit is considered to be non-marine in origin and consists mainly of very fine-grained, angular, quartz grains with the viscous oil acting as a binding agent. Lenticular beds of clay and extensive cross-bedding indicates deltaic conditions with intermittent flooding periods …
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Paleosol evolution in a sequence stratigraphic framework, Cretaceous Ferron Notom Delta, south central Utah, U.S.A.
… floodplain paleosols of the youngest non-marine (100ka) sequence in the Cretaceous Ferron Notom Delta indicate the prevalence of shrink-swell processes, suggesting fluctuating soil moisture conditions. Alternating soil moisture conditions suggest seasonality in rainfall, linked to a …
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Transitional Facies and Sequence Stratigraphic Complexity of Shallow-Marine Star Point Formation to Coastal-Plain Blackhawk Formation Along Depositional-Strike, Wasatch Plateau, Utah
… architecture right at the transition from marine to non-marine environments is poorly documented. In the Cretaceous outcrops of Utah, Star Point and Blackhawk Formations are well studied. The nature of spatio-temporal transition of these two Formations, in the deposition-strike orientation, …
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Influence of the West Virginia Dome on paleocurrent patterns in the Upper Devonian-Lower Mississippian Price Formation in the Central Appalachians
… the Allegheny Front and include the lowermost marine Oswayo Member, Riddlesburg Shale Member, unnamed Upper Member and the uppermost non-marine Rockwell Member. These units overlie the Devonian Hampshire Formation or Greenland Gap Formation and underlie the Mississippian Greenbrier Limestone or …
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Paleoclimate and mammal paleocology during the paleocene of North America: insights from stable isotopes.
… south-central Montana are unlike most other non-marine carbonates described previously in the literature, but may have formed under similar conditions as proposed for some Paleocene carbonates from the Clarks Fork Basin, Wyoming. Select carbonates from both regions contain exceptionally …
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Jurassic stratigraphy of the southern two-thirds of North Dakota
… Piper Formation; shaly limestone, calcareous and non-calcareous shales of the Rierden Formation; shale and sandstone of the Swift Formation; and, at the top, non-marine shale and local sandstones of the Morrison Formation.</p> <p>The units generally are conformable in the deep part of the …
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The Spearfish Formation in the Williston Basin of western North Dakota
… boundary. The Saude in North Dakota is probably non-marine in origin and was deposited in a different depositional environment than its equivalent south of the Cedar Creek Anticline. South of the anticline the upper part of the Saude has been removed by erosion and a sharp angular unconformity …
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The Williamsport Sandstone: Precession and Ecentricity Forced Cyclicity in the Upper Silurian Strata of Central Pennsylvania, Western Maryland, and Northeastern West Virginia
… Union, Pennsylvania. Their facies are largely marine to the south in West Virginia and Maryland and are predominantly non-marine to the north at Mt. Union, Pennsylvania. At Mt. Union there is a loss of PACs (6th order cycles) in the upper part of each 5th order sequence due to hiatus or vacuity …
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Slip clutch design for position sensitive systems in marine environments
… and torque overload protection in both marine and non-marine environments.
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The Pareiasaur Elginia from Elgin, north east Scotland, and the late Permian extinction event
The end-Permian mass extinction of marine invertebrates and non-marine tetrapods is examined. Fauna!, lithostratigraphical and geochemical data indicate that the mass extinction was a prolonged, gradual event, and was not initiated or accelerated by a catastrophic mechanism. The cause of the …
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Drivers of productivity in a subarctic seabird: Arctic Terns in Iceland
Thesis abstract Marine ecosystems are changing rapidly in response to anthropogenic and environmental stresses, and seabird populations that depend on marine resources are in decline in many areas of the world. Iceland supports internationally important populations of many seabird species and, …
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Seismic Facies Mapping for Source Rock Distribution of the Rakopi Formation in Deep-water Taranaki Basin, New Zealand
… potential from type II/III, oil and gas prone non-marine coal-rich facies. This source interval contains type II kerogen with excellent total organic content, hydrogen index above 300, and above average generative potential. A potential secondary type I, oil prone, marine algal source facies …
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Diagnetic modelling in Middle Jurassic clastic sediments from the Ravenscar group, Yorkshire, and the Brent group, northern North Sea
… complex. Here, attempted equilibration of non-marine sediments with their pore waters resulted in a variety of diagenetic modifications. These are interpreted as being influenced strongly by bacterial degradation of organic matter, which lowered pH and then reduced Eh. This reduction of pH …
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Scientific Underpinning of Concepts of Geochemical Inversion: Developing and Improving Methods with Application to Petroleum System Analysis
… distal downdip, highly mature (1.3 to 1.7% Ro), non-marine transitional/paralic source rocks of the Lower Almond Formation/Upper Mesaverde Group in the Washakie Basin and the Great Divide Basin of southwestern Wyoming.
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