Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 245 for “"Outcrop"”.
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Chemical heterogeneity of glaciofluvial deposits: Outcrop study and implications for reactive transport
… are poorly understood. Consequently, an outcrop study was conducted in a glaciofluvial deposit in Deerfield, New Hampshire in order to: (1) identify the sediment properties controlling heavy metal adsorption, (2) evaluate the extent to which geologic information can be used to …
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Ground-Based Hyperspectral Imaging and Data Analysis for Near-Vertical Outcrop Surfaces
… in remote sensing technology have expanded outcrop data collection and analysis capabilities creating new opportunities to carry out geological studies in greater detail. Until recently, the hyperspectral data used in geology were acquired mostly from airborne platforms along with some from …
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The Cambrian: Sedimentary controls on marine ichnology and stratigraphic time at outcrop
… ichnodiversity’, reflecting present-day outcrop quality. In offshore environments, controls on original, registered, and observable ichnodiversity favourably aligned to create a diverse ‘ichnological optimum’. Sustained low ichnodiversity in deepwater strata is interpreted to represent …
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BUILDING A BETTER TRAINING IMAGE WITH DIGITAL OUTCROP MODELS: THESE GO TO ELEVEN
… increase realism captured in TIs, a quantitative outcrop analog-based approach utilizing terrestrial lidar and high-resolution, calibrated digital photography is combined with lithofacies analysis to produce TIs. Terrestrial lidar scans and high-resolution digital imagery were acquired of a …
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Stratigraphic evolution and architectural analysis of structurally confined submarine fans: a tripartite outcrop-based study
… to the deep sea, and tectonic episodes. Outcrop studies of these depositional systems yield sub-seismic levels of sedimentologic and stratigraphic detail. This dissertation comprises outcrop-based studies from two different structurally confined, distributive submarine fans: the Eocene …
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Outcrop-based 3-D modeling of the Tensleep sandstone at Alkali Creek, Bighorn Basin, Wyoming
Includes bibliographical references.
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Forward modeling of deepwater outcrop geobodies to enhance seismic interpretation of Ursa field, Gulf of Mexico
Includes bibliographical references (pages 126-137).
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3-D modeling of shallow-water carbonate systems : a scale-dependent approach based on quantitative outcrop studies
The study of outcrop modeling is located at the interface between two fields of expertise, Sedimentology and Computing Geoscience, which respectively investigates and simulates geological heterogeneity observed in the sedimentary record. During the last past years, modeling tools and techniques …
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Outcrop to subsurface stratigraphic analysis of the Juana Lopez member of the Mancos Shale, northwestern CO, U.S.A.
… 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 core suggest the Juana Lopez …
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Reservoir Characterization and Outcrop Analogs to the Navajo Sandstone in the Central Utah Thrust Belt Exploration Play
… Canyon area of the San Rafael Swell, Utah. These outcrops are located approximately 60 kilometers (45 mi) east of the recently discovered Covenant oil field which is located in the central Utah thrust belt exploration play. The reservoir for the Covenant field is the Navajo Sandstone. This study …
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A structural and geochemical traverse across the NW outcrop of the Colenso Fault Zone, Saldanha, South Africa
The Colenso Fault Zone marks the boundary between the Tygerberg and Swartland Terranes in the Pan-African Saldania Orogenic Belt. The fault zone comprises several discrete shear discontinuities that in places cross-cut relatively undeformed granites of the Cape Granite Suite. It is NW-SE striking, …
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Outcrop-derived facies model and cycle architecture of the Tansill G27-G28 high-frequency sequences, Rattlesnake Canyon, New Mexico
… developed and modified over decades of extensive outcrop studies (Tyrrell, 1969), making it one of the type locations to study depositinal processes of a structurally dynamic platform. This study provides the opportunity to examine the terminal phase of carbonate deposition of a dynamically …
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Stratigraphy and paleontology of the upper Cretaceous Morden Member (Vermilion River Formation) in the outcrop area, northeastern North Dakota
… planktonic foraminiferids were collected from 48 outcrop and 17 well cutting samples. The dominant species are rotaliines whereas the daminant individuals are textulariines. The foraminiferid fauna occurs throughout the Morden with the well cuttings dominated by calcareous foraminiferids. The …
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3D Geologic Mapping and Characterization Using Digital Outcrop Models Generated from Uninhabited Aerial Vehicles and Structure-from-Motion Photogrammetry
Outcrops are a primary source of geologic information and key in developing knowledge for teaching, training, and research. Observations from outcrop exposures provide opportunities to directly characterize detailed sedimentological composition, architectural characteristics, and link observations …
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Effects of Sedimentologic and Stratigraphic Heterogeneity on Production in Carbonate Reservoirs: An Integrated Outcrop, Synthetic Geologic Modeling, and Flow Simulation Study
… shoreface reservoirs, this study couples an outcrop-derived conceptual model and petrophysical data from reservoir analogs to generate a spectrum of simple geologic models of carbonate shoreface reservoir systems. The 25 geologic models, designed to isolate and evaluate the influence of …
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An Outcrop Based Study of the Weches Formation in Sabine County, Texas: Investigating Its Unconventional Resource Potential through the Study of Stratigraphy, Sedimentology, Petrology, and Geochemistry
<p>Fresh Weches Formation (Middle Eocene) exposures found in aggregate quarries in Sabine County, Texas, were sampled, measured, and logged with gamma-ray spectrometry (GRS). Sedimentology and petrology characteristics of Weches samples were analyzed through thin section, scanning electron …
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An Examination of Site Response in Columbia, South Carolina: Sensitivity of Site Response to "Rock" Input Motion and the Utility of Vs(30)
… investigated near-surface deposits are used: B-C outcrop conditions and hard rock outcrop conditions. The rock outcrop model is considered a geologically realistic model where a velocity gradient, representing a transition zone of partially weathered rock and fractured rock, overlies a rock …
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Sedimentology and Architecture of a Partially Contained Deposit, Cerro Solitario, Magallanes Basin, Chilean Patagonia
… more complex, partially contained deposits in outcrop. Here, I document the sedimentological facies and stratigraphic architecture of the Zorrillo Unit, a partially contained system exposed at Cerro Solitario within the Upper Cretaceous Tres Pasos Formation of the Magallanes Basin. The …
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Sediment-water interactions in three Holocene saline, alkaline playas, south-central Oregon: Mineralogy and geochemistry
… and isotopic analyses of clay minerals from outcrops and playa sediments, as well as chemical and isotopic analyses of groundwater and interstitial playa pore waters, have been used to improve understanding of the nature of sediment/water reactions in playa environments. Outcrop samples and 5 …
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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
… 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, remains undocumented. This study characterizes facies and stratigraphic …
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