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Showing 1 to 20 of 22 for “"neotectonic"”.
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Neotectonic evolution of Grand Canyon : interaction between volcanism, river incision, epeirogenic uplift, and faulting
<p>This thesis focuses on the effects of volcanism, river incision, epeirogenic uplift, and faulting on the landscape evolution of the Grand Canyon region. In the first chapter the migration of increasingly asthenospheric basaltic volcanism is used to constrain lithospheric modification of the …
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Application of Remote Sensing Techniques for the Study of Neotectonic Deformation, Subsidence and Coastal Processes
… platforms to study the effects of subsidence, neotectonic deformation, and coastal change. The first study covers subsidence and neotectonic deformation in Karachi and surrounding areas on the southern coast of Pakistan. This area is situated along the diffuse western margin of the Indian plate …
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Investigation of Neotectonic Activity within the Shallow, Unconsolidated Stratigraphy of the Pearl River Delta Area, Louisiana
… have suggested that active deformation driven by neotectonic activity has locally influenced areas of southeastern Louisiana in the form of wetland loss and coastal erosion. This study, within the Pearl River Delta Area of Louisiana, applied geomorphologic and stratigraphic methods of analysis to …
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Neotectonic deformation features in plio-pleistocene coastal aeolianites: palaeoseismology and earthquake hazard implications for the Southern Cape, South Africa
… South Africa, have been studied to resolve the neotectonic history of the region, estimate the recent to current upper-crustal stress field, and infer seismic hazard. Previous studies indicate possible Quaternary faulting within the Southern Cape, major faults within the underlying geology, and …
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Orientation of the maximum horizontal stress (SHmax) in the Orange basin and Outeniqua sub-basins of South Africa : neotectonic implications
… seismicity not easily correlated with known neotectonic features. Recent seismicity has repeatedly been shown to result from the reactivation of pre-existing geological structures, typically large faults or shear zones, which are preferentially-aligned to the contemporary stress field. …
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ΝΕΟΤΕΚΤΟΝΙΚΗ ΕΞΕΛΙΞΗ ΤΗΣ ΛΕΚΑΝΗΣ ΦΛΩΡΙΝΑΣ-ΒΕΓΟΡΙΤΙΔΑΣ-ΠΤΟΛΕΜΑΙΔΑΣ (Δ. ΜΑΚΕΔΟΝΙΑ)
NEOTECTONIC ANALYSIS OF NEOGENE AND QUATERNARY FAULTS IN THE FLORINA- VEGORITIS-PTOLEMAIS BASIN OF NW MACEDONIA (GREECE) LEADS TO THE CONCLUSION THAT TWO EXTENSIONAL PHASES CAN BE DISTINGUISHED. THE FIRST ONE, WITH A NNE-SSW STRESS DIRECTION, TOOK PLACE DURING LATE MIOCENE- PLIOCENE TIMES AND WAS …
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Tectonic evolution of the Thakkahola Graben and Dhaulagiri Himalaya, Central Nepal
… the three extensional systems, document their neotectonic histories in relation to their older manifestations, and develop a model for how the geodynamic phenomena driving them have produced the observed patterns of tectonism and deformation. 14C geochronology, remote sensing analyses, and …
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Caracterização morfológica e morfotectônica do gráben do Rio Mamanguape e adjacências, borda oriental do estado da paraíba.
… middle and lower course, to identify possible neotectonic and structural deformations noticeable in the gráben adjacencies. The used parameters were: Slope - Extension Relation (SER), latitudinal and longitudinal profiles, Asymmetry Factor Watershed (AFW), Hypsometric and Slope Chart (HSC). …
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Tectonics of the Georgia Basin, northwest Washington State, USA, and southwest British Columbia, Canada
GPS strain and recent neotectonic studies in northwest Washington and southwest British Columbia indicate long term north-south shortening of the Cascadia forearc extends north of recognized active faults. This study reviews seismic reflection profiles from the SHIPS 1998 and 2002 experiments in …
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Plants as biotic indicators of Neogene palaeoenvironmental evolution in the Cape Floristic Region
… (i) the relative roles of climatic changes and neotectonic uplift in shaping the CFR since the Early Miocene, and to detemine (ii) whether contrasting evolutionary processes (adaptive versus non-adaptive) exhibit spatial structuring within the flora, given the complex topography of the region.
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Caracterização geomorfológica e tectônica da carta Conde 1:25.000.
… in sedimentary rocks, possibly due of neotectonic reactivations. Besides of revealing structural patterns (asymmetry, straightness and inflections) and drainage forms of rivers and streams.
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ΘΕΡΜΟΜΗΧΑΝΙΚΗ ΣΥΜΠΕΡΙΦΟΡΑ ΤΗΣ ΛΙΘΟΣΦΑΙΡΑΣ ΣΤΟΝ ΕΛΛΗΝΙΚΟ ΧΩΡΟ
… OF THE GEOLOGIC TIME. THEMAIN DATA USED ARE NEOTECTONIC ONES, ABSOLUTE VALUES OF THE EFFECTIVE PRINCIPAL STRESSES MEASURED THROUGH HYDROFRACTURING IN OIL WELLS, THE TECTONIC SUBSIDENCE OF NEOGENE SEDIMENTARY BASINS, TEMPERATURE MEASUREMENTS AND ESTIMATED HEAT FLOW, PALEOGEOTHERMAL INDICATORS, …
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Neotectonics & Cooling History of the Southern Patagonian Andes
… an existing research gap with respect to the neotectonic activity of the upper plate in response to ridge collision - a mechanism that has been shown to affect the upper plate topography and exhumational patterns in similar tectonic settings. Secondly, the qualitative interpretation of my new …
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Structural analysis of brittle deformation features along Grenvillian shear zones in southeastern Ontario
… stress field. Further understanding of this neotectonic deformation is relevant to assess the seismic risk in the intraplate region of southern Ontario.
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Dating of alluvial fans from NW Argentina using cosmogenic nuclides and optically stimulated luminescence technique
… Even though the eastern Andean margin is showing neotectonic activities and is assumed to be active up to recent times, deformation and seismicity might most probably have played only a minor role in relation to the rather short timescale reflected by the data.
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Sub-Ice Relief and Geology of East Antarctica
… province 5) the delimitation of the major neotectonic characteristics of East Antarctica - zones of uplift and depression 6) a generalized outline of the major tectonic units of East Antarctica. Investigations of glacial geological history have been assisted by detailed mapping and analysis …
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Distribution and Rates of Quaternary Deformation within the Pampean Flat Slab Segment of the Central Andes of Argentina from 30-32°S
… similar to that observed both in geodetic and neotectonic studies, indicating a possibly constant stress-field since at least the Pleistocene. This spatial correspondence in lowering of slip rates with the resumption of a more steeply subducting Nazca plate points to the first documented change …
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Seismic anomalies in stable continents: exploring earthquake clusters and hidden faults in Southern Africa
… is the Hebron Fault Scarp (Chapter 2), a major neotectonic scarp which has no associated earthquake cluster reported in regional catalogues. In this study a seismic deployment was done at the fault and it is shown that microseismic activity does occur below the detection limits of regional …
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U-series dating, geochemistry, and geomorphic studies of travertines and springs of the Springerville area, east-central Arizona, and tectonic implications.
… an opportunity to unravel paleohydrologic and neotectonic histories near the southeastern edge of the Colorado Plateau. This interdisciplinary study combines water and gas chemistry data, travertine morphology and geochronology, analysis of geologic structures, basalt geochronology, and river …
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Caracterização geomorfológica e tectônica da folha Rio Mamuaba 1:25.000.
The current study intends to point out neotectonic’s evidences in the area covered of topographic map from Mamuaba river 1:25.000, through morphotectonic and morphometric analysis applied to segments of drainage network in the area covered by the map. The topographic map investigated is situated on …
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