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Showing 1 to 20 of 29 for “"Facies analysis"”.
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Thin-bedded Facies Analysis of a Ferron Storm-dominated Delta Front and Prodelta: Cretaceous Ferron Sandstone, Utah
This study examines thin-bedded facies within shelf and prodelta deposits of the Cretaceous Ferron Notom Delta in central Utah. Thin beds may be the result of storms (tempestites), ignitive turbidity currents, or hyperpycnal flows. This study quantitatively evaluates the proportion of each facies …
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Facies analysis of the Prairie du Chien group in the Illinois Basin and analogous rocks in Missouri and Kentucky
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms
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Depositional Facies Analysis of the Cotton Valley Group Sandstones of the Blackburn Field, Northern Louisiana using Well Logs and Cores; Implications for Carbon Sequestration
… A combination of core descriptions, thin section analysis, x-ray diffraction and x-ray fluorescence are used to characterize reservoir properties. The CVG was divided into six units based upon changes in lithology in the core, correlated to the well log, and extrapolated across the Blackburn …
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Palaeoenvironments and position of the Precambrian–Cambrian boundary within the lower Vanrhynsdorp Group of South Africa: sedimentary facies analysis, U-Pb series zircon geochronology and micropalaeontology
… in this study. In addition, using sedimentary facies analysis, the lateral and vertical facies variation in this lower part of the group were (re)documented in order to refine the palaeoenvironmental setting. The current results suggest a dominantly shallow marine, partly storm-dominated …
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Facies analysis of three members of the Scarborough Formation (Middle Jurassic : Lower Bajocian) in the Cleveland Basin, northeast England : Blea Wyke, Byland Limestone and Crinoid grit members
… Cleveland Basin, northeast England. Sedimentary facies analysis has been performed on the three conformable lithostratigraphic units which make up the bulk of the Scarborough Formation outcrop: Blea Wyke, Byland Limestone and Crinoid Grit Members. This form of analysis was performed in an effort …
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Depositional Model of a Late Cretaceous Dinosaur Fossil Concentration, Lance Formation
… bonebed. To accomplish this task we utilized 1D facies analysis of surrounding units and 3D analysis of the bonebed. The nature of the outcrop limited facies analysis to 1D. Four measured stratigraphic sections, each containing the bonebed unit, were taken and used in facies analysis. In …
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Outcrop to subsurface stratigraphic analysis of the Juana Lopez member of the Mancos Shale, northwestern CO, U.S.A.
… sandstone interbedded with organic-rich shale. Facies analysis of core and outcrops across northwestern Colorado indicates the presence of proximal, sand-prone facies to the north and distal, mud-prone facies to the south. The results of facies analysis and correlations between the outcrops and …
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Syntectonic deposition and paleohydrology of the spring-fed Hualapai Limestone and implications for 5-6 MA integration of the Colorado River system through Grand Canyon : evidence from sedimentology, geochemistry and detrital zircon analysis
… with a stratigraphic and sedimentologic analysis that includes new geochemistry, tephrochronology, and detrital zircon analysis to examine variations of the sedimentary and tectonic records from the Hualapai Limestone basins. Thickness variations, with progressively thicker deposits …
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Fluvial facies architecture and provenance history of the Abrahamskraal-Teekloof formation transition (lower Beaufort group) in the main Karoo Basin
… The objective of this mainly qualitative facies analysis study is the evaluation of the vertical and lateral abundances of the facies associations in order to decouple the preserved tectonic and climatic signals in the formations. The results on the stratigraphic trends should aid …
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Significance of magma mingling and mixing during the formation of the host-rock successions of Archean massive sulfide deposits in the Noranda camp, Abitibi subprovince, Quebec, The
… were recorded for each xenolith. Volcanic facies analysis showed that tabular xenoliths are abundantly present in the lower portion of the cryptodome and become increasingly sparse, blocky, and irregularly distributed and shaped up-stratigraphy. Flow banding around the xenoliths is well …
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The Durness Group of NW Scotland: a stratigraphical and sedimentological study of a Cambro-Ordovician passive margin succession
… with minor siliciclastic and evaporitic strata. Facies analysis shows that the carbonates represent deposition within coastal sabkha, intertidal and shallow subtidal to shelfal environments and sedimentary logging of all available sections has revised the thicknesses of the lithostratigraphic …
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The sedimentology, geochemistry and diagenesis of West Rand Group sediments in the Heidelberg area, Transvaal
… on the basis of laterally persistent markers. Facies analysis has indicated that deposition occurred in the following environments in the different Formations: (1) the first shale horizon of the Orange Grove Quartzite Formation marks a change from "high" energy-wave dominated to lower energy - …
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A multidisciplinary approach to reservoir characterization of the coastal Entrada erg-margin gas play, Utah
… bodies that transition into a muddy tidal flat facies. These high quality reservoirs are dominated by eolian-influenced facies interbedded with sandy interdune facies. They are sealed vertically by muddy and silty facies of associated tidal flat deposits that act as excellent stratigraphic traps …
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Seismic Facies Mapping for Source Rock Distribution of the Rakopi Formation in Deep-water Taranaki Basin, New Zealand
… in the Romney 3D survey utilizing seismic facies analysis, log motif, and geochemical evaluations. </p> <p>The Rakopi Formation records the northwest prograding megasequences of the Taranaki Delta. Seismic facies are defined by internal reflection configuration, reflection amplitude, …
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Fluvial facies, vertebrate taphonomy and palaeosols of the Teekloof formation (Permian) near Beaufort West, Cape Province, South Africa
… study that integrates a conventional sedimentary facies analysis with investigations of the taphonomy of in situ therapsid fossils and the nature and distribution of palaeosols. Such an approach has not previously been applied to any of the Karoo strata. The results contain descriptive and …
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Multi-Disciplinary Analyses of Outcropping Late Cretaceous Clinoform Stratigraphy, Magallanes Basin, Chile
… observations, measured sections, facies analysis, stratigraphic mapping, and organic geochemical and petrographic datasets to reconstruct the evolution of this shelf-margin system from deltaic topsets to distal submarine channels. The results demonstrate a dynamically linked …
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Stratigraphy and Palaeontology of the Late Cretaceous Wapiti Formation, west-central Alberta, Canada
… stratigraphic methods, well-log signatures, facies analysis, and fossil associations. On the whole, particular attention has been given to 1) age and nature of both basal and upper contacts of the Wapiti Formation, 2) effective mappability of lithostratigraphic units and depositional …
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Contributions to the geology of the Table Mountain Group
Modern analysis of Table Mountain Group sediments began with I. C. Rust's D.Sc. thesis "On the sedimentation of the Table Mountain Group in the western Cape Province" in 1967. Rust defined the stratigraphy of the Table Mountain Group, produced computer generated isopach and palaeocurrent maps for …
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Correlation and Paleoenvironments above West T9.3 Tuff, Pisco Formation, Peru
… that include the tuffs and conducted detailed facies analysis. Sections were broken down into eight facies including: hummocky cross-stratified diatomaceous siltstone, muddy siltstone, tuff, dolomitized siltstone, phosphate pebble conglomerate, and four distinct very-fine sandstone facies. …
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Paleosol evolution in a sequence stratigraphic framework, Cretaceous Ferron Notom Delta, south central Utah, U.S.A.
… interpretation of the sequence. Detailed facies analysis reveal 11 depositional facies that built 33 fluvial aggradational cycles, 9 fluvial aggradation cycles sets, and 3 sequences, within what was previously classified as a single sequence. Fluvial aggradation cycles in the succession …
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