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 22 for “"Mudrock"”.
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Smectite to illite transformation of Gulf of Mexico -Eugene Island (GoM-EI) mudrock
… and permeability of resedimented GoM-EI mudrock due to smectite-to-illite transformation. This thesis presents the results of phase one study. In phase one study, we have successfully transformed smectite to illite in laboratory environment using GoM-EL as starting material. Based on …
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The engineering geology and stability of the rapidly alternating limestone and mudrock sea cliffs of glamorgan
… forms were identified in the more calcareous mudrocks, and a laboratory leaching experiment demonstrated that weatherability was greatest in such mudrocks. Pyrite oxidation was shown not only to enhance carbonate leaching, but to degrade the clay minerals and induce rehydration of the double …
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Compression behavior of smectitic vs. illitic mudrocks
… testing was performed on smectitic and illitic mudrocks. The original Gulf of Mexico - Eugene Island (GoM-EI) mudrock sets the baseline for smectitic mudrock in order to compare with illitic mudrocks. Two methods were used to create illitic mudrock from the GoM-EI sediment.
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Quantitative geometric model of connected carbonaceous material in mudrocks
… the pore level geometries of grains and voids in mudrocks in order to understand the flow potential of gas from these rocks. Recent observations of nanopores within carbonaceous material in mudrocks have led to the hypothesis that such material provides conduits for gas migration within the …
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OVERPRESSURE AND COMPACTION IN THE LOWER KUTAI BASIN, INDONESIA
… is disequilibrium compaction, with sand–mudrock pressure discrepancies being present above the transition zone into hard overpressure as a result of lateral reservoir drainage. The pressure data, wireline logs and other data such as temperature and vitrinite reflectance data have been …
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Permeability anisotropy of resedimented mudrocks
… the permeability anisotropy of several mudrocks, which are clay-rich sedimentary formations, using re-sedimentation, a process of homogenization of naturally-occurring soils and recreation of the sedimentation environment in a controlled laboratory setting. The permeability anisotropy of …
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Fluid Budget of Metasedimentary Rocks from a Tertiary Accretionary Prism and Connections to Seismicity, Olympic Peninsula, Northwest Washington State
… 40 representative samples of sandstone and mudrock that were buried to 6–15 km. This depth range intersects the 10–50 km depth range of ETS events. My objectives are to quantify the water flow recorded in rocks of the Olympic Peninsula via petrographic, whole rock, and isotopic analyses to …
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Permeability anisotropy and resistivity anisotropy of mechanically compressed mudrocks
… of the permeability anisotropy for a given mudrock is difficult to measure; further, whether the permeability anisotropy is a constant value or evolves with the basin state is of active debate. This thesis experimentally investigates the development of permeability anisotropy in mechanically …
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Stratigraphic partitioning and reservoir distribution of the Late Devonian to Early Mississippian Exshaw Formation, Western Canada Sedimentary Basin.
… that accumulated as an organic-rich basinal mudrock within a tectonically extensional region prone to horst and graben structures. This study characterizes sedimentologic and stratigraphic controls on Exshaw reservoir potential across southern Alberta based upon detailed core descriptions …
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Controls on the accumulation of organic matter in the Eagle Ford Group, Central Texas, USA.
… Eagle Ford Formation is an organic rich marine mudrock which outcrops across central Texas. This study documents the chemostratigraphic character of the Pepper and Eagle Ford Formations in central Texas using major and trace elements, organic matter abundance, and the isotopic and stoichiometric …
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Spatial heterogeneity in isotope and biomarker distributions : insights from the End-Devonian OAE in Western Canada.
… sections of black laminated and burrowed mudrock interspersed with siltstones and carbonaceous shales capture changes in paleoredox conditions, water depth, and tectonism over time. Overall, this research contributes to our current understanding of nutrient dynamics and across an ancient …
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Petrographic and petrophysical characterization of the Eagle Ford Shale in La Salle and Gonzales counties, Gulf Coast Region, Texas
… is an organic-rich marine carbonate-dominated mudrock located in the Gulf Coast Region, Texas. This mudrock was deposited during the Late Cretaceous and is composed of two main members: the lower and the upper Eagle Ford, which are associated to marine transgression and regression episodes …
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Pre-vegetation alluvium: Geological evidence for river behaviour in the absence of land plants
… in small- to moderate-sized river systems; 4) mudrock is on average 1.4 orders of magnitude less common than it is in syn-vegetation alluvium; and 5) microbial matgrounds were present, but had negligible effect on preserved architecture and facies. This thesis demonstrates that whilst the …
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Post-depositional structural changes in clay sediments
… the changes in the microstructure of clays and mudrocks due to the influence of the environment of deposition and subsequent compaction. A sedimentary model is proposed in which the development of fissility in shales and the formation of hydrocarbon source rocks are attributed to the chemical …
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On the observations of autowaves and avalanches in an aluminum magnesium alloy
The present study attempts to answer the question of what the local deformation characteristics look like in a dynamically strain aging material before the onset of macroscopic instability. A solution strengthened aluminum magnesium alloy was tested in a work hardened condition in uniaxial tension …
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Paleoenvironmental Reconstruction of an Upper Ordovician Rocky Shoreline: The Lindsay Formation of Heywood and Partridge Islands, Ontario
… Upper Ordovician Lindsay Formation carbonate and mudrock. The Lindsay Formation strata record two transgressive pulses of an epeiric sea that flooded the North American continent during the Late Ordovician. During this time, mountain building processes associated with the Taconic Orogeny were …
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High-Resolution Sequence Stratigraphy of Late Mississippian (Chesterian) Mixed Carbonates and Siliciclastics, Illinois Basin
… sequences bounded by red, slickensided mudrock paleosols and incised valleys. The 4th-order sequences are composed of 5th-order parasequences that can be correlated basin-wide. Parasequences in the basal, dominantly carbonate sequences are composed of patchy ooid grainstone tidal ridge …
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The Lower Pennsylvanian New River Formation: a Nonmarine Record of Glacioeustasy in a Foreland Basin
… tidally modified estuarine sandstone and mudrock by a ravinement bed, and capped by coarsening-upward bayhead delta facies. The relative thickness of fluvial versus estuarine facies within a fourth-order sequence reflects a balance between accommodation and sediment supply within a …
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UTILIZATION OF CHEMOSTRATIGRAPHIC PROXIES FOR GENERATING AND REFINING SEQUENCE STRATIGRAPHIC FRAMEWORKS IN MUDROCKS AND SHALES
… the utility of chemostratigraphy within mudrock successions. Three cores from Lincoln, Pottawatomie, and Pontotoc Counties in Oklahoma and two outcrops at the Hunton Anticline Quarry (HAQ) in Murray County, OK represent both proximal and distal environments of the Woodford Shale. Clean …
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Silica diagenesis and its pore-scale influence on the characteristics of the upper and lower Bakken shales, Williston Basin, North Dakota and Montana
… bounded by an upper and a lower organic-rich mudrock member. These bounding shales have been interpreted as depositional sequences of transgression and regression related to eustatic sea level variations and serve as important source rocks in the Williston Basin. The lower and upper Bakken …
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