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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 “"fault blocks"”.
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A geophysical investigation of geologic structure and regional tectonic setting at the Savannah River site, South Carolina
… indicate the presence of three major basement blocks bounded by northeast trending faults that penetrate upward from basement into the Atlantic Coastal Plain sediments. Most of these faults are interpreted to be Paleozoic and Mesozoic structures reactivated under compression. The northernmost …
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Structural geology of the Pulaski-Salem thrust sheet and the eastern end of the Christiansburg window, southwestern Virginia
… from Cambrian to Devonian and belongs to five fault blocks. From north to south they are Catawba, Salem, Pulaski, Saltville and Max Meadows. The structurally lowest block is the parautochthonous Saltville block which is exposed in the Christiansburg window of the Pulaski overthrust sheet. …
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Middle Ordovician (Chazyan) conodont biostratigraphy and structural geology of the McMullin Syncline, Smyth County, Virginia
… thrust and consists of seven small fault blocks which are complicated by three generations of folding, the the F2 and F3 folds trending oblique to nearly perpendicular to regional Appalachian trends. Two components of stress operated on the local area, a major one directed from the …
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Structural geology of the Christiansburg area, Montgomery County, Virginia
… From south to north the rocks belong to five fault blocks: the Max Meadows, Pulaski, Saltville, Salem, and Catawba blocks. The Max Meadows block contains only the Middle Cambrian Rome Formation, the oldest rocks exposed within the area. The parautochthonous Saltville block includes rocks from …
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Geology of the Millers Cove area, Roanoke, Craig and Montgomery counties, Virginia
… the anticline passes beneath the Pulaski fault. The extension of the anticline to the northeast is unknown but it may be continuous with the Broad Run anticline. The Dragons Tooth syncline is continuous to the northeast with the North Mountain syncline but to the southwest passes beneath …
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Geophysical investigation and assessment of the Rye Patch Known Geothermal Resource Area, Rye Patch, Nevada
… elevations. After filtering, the Rye Patch Fault, the Range Front Fault, an eastwest trending feature at the location of “southeast” fault, and another possible fault at the southern end of the study area are observable in the Rye Patch geothermal anomaly area. In the Humboldt House anomaly …
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Microfacies analysis of the lower paleocene beda formation in Western Concession 59 and Block 59F, Sirte Basin, Libya /
… the Beda Formation are characterized by normal fault blocks and the general reservoir characteristics/properties appear to be facies controlled.
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A high resolution gravity survey of the Lake St. Martin impact structure, Manitoba, Canada
… irregularities in its profile due to possible fault blocks along a terrace zone extending out to approximately 40 km. </p>
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Structural geology of South Hadhramaut area Yemen Republic
… plateau is brought down in a series of tilted fault blocks to sea level at the Gulf coast. The massive, nodular Palaeocene limestone of the Umm er Radhuma Formation forms steep inaccessible fault scarps throughout the area. The faults vary in size from major ones which have strike lengths in …
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Study of fault gouge influences on mechanical and frictional behavior of granular shear zones using the distinct element method
Studies of fault gouge and its role in shear zone deformation are the key to understanding the mechanics of earthquakes and fault zone evolution. With the advantage of exploring the micromechanical process of gouge deformation in "real time", the combination of the Distinct Element Method (DEM) and …
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A geo-cellular model of a multiphase hydrocarbon field incorporating fault-seal analysis : Bredasdorp Basin, South Africa
… are designed. Reservoir compartmentalisation and fault-seal analysis is also an industry topic which has drawn much interest. Having a 3D model allows for fault-seal analyses to be carried out and evaluated using the statistically distributed reservoir properties. This study incorporates the …
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State-Wide Sequence Framework of Mixed Carbonate-Siliciclastic Ramp Reservoirs: Mississippian Big Lime, West Virginia, USA
… Thrust-load induced differential subsidence of fault-blocks of the foreland basement controlled the rapid basinward thickening of the depositional wedge while subtle structures such as arches at high angles as well as parallel to the margin, affected thicknesses and facies development.
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Geological and structural analysis of the Hwange area-Northwest Zimbabwe: using remotely sensed data and geographic information systems (GIS)
… sands. The area has been affected by a number of faults and shears some of which post date the Karoo sediments. These faults are an expression of the major tectonic events associated with this area. Some of the faults have been attributed to the effects of the Zambezi Rift System. Fault zones in …
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Laramide transpression and oblique thrusting in the northeastern Front Range, Colorado: 3D kinematics of the Livermore Embayment
… to diverse trends and geometries of secondary faults and folds. The role of diversely-oriented, secondary structures in accommodating three-dimensional strain across transition zones is the fundamental problem driving this investigation. This investigation analyzed the kinematics and …
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Seismic stratigraphy and tectonic evolution of a transform continental margin, offshore Sierra Leone
… Early Cretaceous) show the influence of normal fault related subsidence and uplift, modified by localised transpressional deformation. The basin bounding faults and half grabens are oriented at high angles to the ensuing passive margin slope strike. Post-transform sequences (Late Cretaceous to …
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Tectonics of the Wolf Creek Fault Zone, southern Illinois: A consequence of Late Paleozoic transpression and transtension at the southeastern end of the Ste. Genevieve Fault System
The Ste. Genevieve Fault System (SGFS) is a 118-mile-long (190 km-long) belt of WNW-trending faults that extends from southwestern-most Illinois, across the Mississippi River, and into southeastern Missouri, in the central (Midwest) United States. East of the Mississippi River, in an area that lies …
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The Skiddaw Group of Cumbria : early Ordovician Turbidite sedimentation and provenance on an evolving microcontinental margin.
… bodies and the orientation of pre-mid Ordovician faults, a tectonic model of syn-depositional extensional faults trending northnorthwest, with fault blocks tilted to the northeast is proposed. The controls of fan development are discussed. Gravitational deformation in the Llanvirn is expressed as …
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An integrated geophysical study of the Ionian Basin western margin : new insights on its Permo-Triassic origin
… data show the presence of a series of en echelon fault blocks, igneous mounds, syn-rift deposits of probable late Palaeozoic to early Mesozoic age and a thick sequence of late Mesozoic to Tertiary post-rift sediments coinciding with the western margin of the basin. The age of the syn-rift …
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The stratigraphy and economic potential of Permo-Pennsylvanian strata in southwestern North Dakota
… potential of various areas.</p> <p>A reverse fault component is well demonstrated in the Red Wing fault zone in McKenzie County by the occurrence of repeated sections of the Kibbey Formation. Local thickening proximal to this fault throughout the entire section is interpreted to illustrate …
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The evolution of a sand-rich basin-fill sequence in the Pendleian (Namurian,E1c)of North-West England
… margins were steep submarine slopes or relict fault scarps rising up onto the partially emergent Askrigg and Lake District Blocks. Within the basins there was significant topographic relief caused by differential compaction over buried Dinantian fault blocks. The Pendle Grit Group, comprising …
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