The missing complexity in seismically imaged normal faults: What
... the primary control on fault rock permeability reduction relative to the host stratigraphy; other ...
... the primary control on fault rock permeability reduction relative to the host stratigraphy; other ...
Basement Lithologic Framework and Structural Features of the
... investigation of Carswell core was carried out at the Cluff Lake uranium mine, where production has ended and site decommissioning work is beginning. Work at Hook Lake was conducted from a small bush camp serviced by float planes from Voyage Air in Buffalo Narrows. ...
... investigation of Carswell core was carried out at the Cluff Lake uranium mine, where production has ended and site decommissioning work is beginning. Work at Hook Lake was conducted from a small bush camp serviced by float planes from Voyage Air in Buffalo Narrows. ...
Geology - Geostud
... America. For permission to copy, contact Copyright Permissions, GSA, or [email protected]. | AprilSociety ...
... America. For permission to copy, contact Copyright Permissions, GSA, or [email protected]. | AprilSociety ...
Tectonic re-interpretation of the Banggai
... Abstract: High resolution multibeam bathymetric and seismic data from the area north of the Banggai-Sula Islands, Indonesia, provide a new insight into the geological history of the boundary between the East Sulawesi ophiolite, the Banggai-Sula microcontinent and the Molucca Sea collision zone. Majo ...
... Abstract: High resolution multibeam bathymetric and seismic data from the area north of the Banggai-Sula Islands, Indonesia, provide a new insight into the geological history of the boundary between the East Sulawesi ophiolite, the Banggai-Sula microcontinent and the Molucca Sea collision zone. Majo ...
Merlinleigh and Byro Sub-Basins
... is represented by the Ajana Fault System in the south, whereas further to the north basal Late Carboniferous to Early Permian sedimentary rocks of the Lyons Group transgress the Devonian to Early Carboniferous sequence of the Gascoyne Platform. In a limited area in the northwest the lowermost sedime ...
... is represented by the Ajana Fault System in the south, whereas further to the north basal Late Carboniferous to Early Permian sedimentary rocks of the Lyons Group transgress the Devonian to Early Carboniferous sequence of the Gascoyne Platform. In a limited area in the northwest the lowermost sedime ...
Distributed deformation in the lower crust and upper mantle beneath
... should be resolved by our data set, and the synthetic image (Fig. 3D) clearly differs from our observed image. In contrast, a smoothly dipping Moho produces an image with small gaps and offsets that are caused by processing of the inhomogeneous distribution of rays (Fig. 3C). We cannot rule out the ...
... should be resolved by our data set, and the synthetic image (Fig. 3D) clearly differs from our observed image. In contrast, a smoothly dipping Moho produces an image with small gaps and offsets that are caused by processing of the inhomogeneous distribution of rays (Fig. 3C). We cannot rule out the ...
Report of Investigation 195
... interpretation and interpolation of subsurface lithological and tectonic structures and their relation to each other. It differs from 2-dimensional mapping in the smaller amount of data that are often unevenly distributed and often restricted to clustered drill holes with large gaps between drilled ...
... interpretation and interpolation of subsurface lithological and tectonic structures and their relation to each other. It differs from 2-dimensional mapping in the smaller amount of data that are often unevenly distributed and often restricted to clustered drill holes with large gaps between drilled ...
Record - cloudfront.net
... L. Kober, 1928. The gross and major features of the earth. Genesis of tectonic structures in which an important part is played by geomorphic processes. E.S. Hills, 1961. A study of the external form and outlines of major topographic units - mountain maSSifs, plateaux and river basins - as well as th ...
... L. Kober, 1928. The gross and major features of the earth. Genesis of tectonic structures in which an important part is played by geomorphic processes. E.S. Hills, 1961. A study of the external form and outlines of major topographic units - mountain maSSifs, plateaux and river basins - as well as th ...
Investigating tectonic-erosion interactions
... Pradesh) alternate with segments where the topography increases more linearly to the north, precipitation peaks at lower elevations and exhumation rates appear to be lower (e.g. western Nepal, Bhutan). The potential climatic or tectonic controls on these spatially variable topographic, precipitation ...
... Pradesh) alternate with segments where the topography increases more linearly to the north, precipitation peaks at lower elevations and exhumation rates appear to be lower (e.g. western Nepal, Bhutan). The potential climatic or tectonic controls on these spatially variable topographic, precipitation ...
Hydrothermal vent Activities At the Gjallar Ridge In the
... Initiation on seismic sections is based on their tendency to cross-cut stratigraphy and their high seismic amplitudes. The gross geometry, size and location of sills can be determined by this means along with the geometry sill-sill contacts. Sill complex geometries Radially symmetrical and consists ...
... Initiation on seismic sections is based on their tendency to cross-cut stratigraphy and their high seismic amplitudes. The gross geometry, size and location of sills can be determined by this means along with the geometry sill-sill contacts. Sill complex geometries Radially symmetrical and consists ...
A study of basement structures and onshore
... The Euler deconvolution method (Reid et al. 1990) is a 3-D inversion approach and was also used to estimate the depth to top of the magnetic basement. Structural indices were tested, and an index (SI) of 0.5 (thick step) gave the most focused depth estimates in the eastern platform areas. A structur ...
... The Euler deconvolution method (Reid et al. 1990) is a 3-D inversion approach and was also used to estimate the depth to top of the magnetic basement. Structural indices were tested, and an index (SI) of 0.5 (thick step) gave the most focused depth estimates in the eastern platform areas. A structur ...
Geology of Base-Metal Deposits
... deposits either to the present earth’s surface (i.e., an outcrop) or sufficiently close to the surface that the deposit can be detected by current geophysical or geochemical exploration techniques. Geologists have long recognized that certain mineral commodities (e.g., base metals) commonly occur to ...
... deposits either to the present earth’s surface (i.e., an outcrop) or sufficiently close to the surface that the deposit can be detected by current geophysical or geochemical exploration techniques. Geologists have long recognized that certain mineral commodities (e.g., base metals) commonly occur to ...
The Mulu Shear Zone ~ a major structural feature of NW Borneo
... However, Ooi (1978) ·records intense shearing in Te strata exposed along Sg. Terekar, a tributary of the Madalam river; in general, shearing is more intense in the north and less intense in the Melinau gorge and to the south. Shearing is apparent in thin section where it distorts the shapes of large ...
... However, Ooi (1978) ·records intense shearing in Te strata exposed along Sg. Terekar, a tributary of the Madalam river; in general, shearing is more intense in the north and less intense in the Melinau gorge and to the south. Shearing is apparent in thin section where it distorts the shapes of large ...
Session 9 - Costal Hazards Management Course
... Introduction: Geological Hazards in the Coastal Zone Coastal Hazards can be defined as natural hazards that occur within the coastal zone. The hazards discussed in Sessions 8 and 9 can happen in the coastal zone, but occur in other locations as well. The following geological natural hazards will be ...
... Introduction: Geological Hazards in the Coastal Zone Coastal Hazards can be defined as natural hazards that occur within the coastal zone. The hazards discussed in Sessions 8 and 9 can happen in the coastal zone, but occur in other locations as well. The following geological natural hazards will be ...
Mercian 2005 v16 p138 Charnwood excursion, Carney 483KB
... exposes a large raft of sedimentary rock, enclosed within the Peldar Dacite Breccia. The raft is composed of volcaniclastic siltstone with highly contorted and slumped lamination. Its contact with the Peldar Dacite Breccia is a complex zone of mixing, with coarsegrained lenticles of the crystal-rich ...
... exposes a large raft of sedimentary rock, enclosed within the Peldar Dacite Breccia. The raft is composed of volcaniclastic siltstone with highly contorted and slumped lamination. Its contact with the Peldar Dacite Breccia is a complex zone of mixing, with coarsegrained lenticles of the crystal-rich ...
Guide_CarbonerasFieldTrip
... Rutter et al. (2012; 2013) suggested that the Trans-Alborán fault system has acted as a stretching fault (Means 1989), accommodating a velocity discontinuity (Odé 1960) in the upper mantle flow regime (Fig. 3). The fast polarization directions from observations of teleseismic shear wave splitting t ...
... Rutter et al. (2012; 2013) suggested that the Trans-Alborán fault system has acted as a stretching fault (Means 1989), accommodating a velocity discontinuity (Odé 1960) in the upper mantle flow regime (Fig. 3). The fast polarization directions from observations of teleseismic shear wave splitting t ...
An Introduction to Geological Maps
... The surface of the Earth is curved. This means that a flat map will misrepresent the exact curved surface. To minimise the distortion, map makers (cartographers) use map projections to portray all or part of the round Earth as accurately as possible on a flat surface. There are many different types ...
... The surface of the Earth is curved. This means that a flat map will misrepresent the exact curved surface. To minimise the distortion, map makers (cartographers) use map projections to portray all or part of the round Earth as accurately as possible on a flat surface. There are many different types ...
A review of structure and tectonics of Kutch basin, western
... plains and consequently subsurface information is lacking for these areas excepting for some geophysical and well data. Geologists of the Oil and Natural Gas Corporation carried out detailed mapping for more than one and a half-decades followed by basin analysis. Based on this work Biswas4,5 present ...
... plains and consequently subsurface information is lacking for these areas excepting for some geophysical and well data. Geologists of the Oil and Natural Gas Corporation carried out detailed mapping for more than one and a half-decades followed by basin analysis. Based on this work Biswas4,5 present ...
L
... that the primary source of marine magnetic anomalies lies in the upper, extrusive section of the oceanic crust. Yet, at megamullions, where this layer is thought to be missing, perfectly normal magnetic anomalies usually are developed. Either we are grossly mistaken in our interpretation of these fe ...
... that the primary source of marine magnetic anomalies lies in the upper, extrusive section of the oceanic crust. Yet, at megamullions, where this layer is thought to be missing, perfectly normal magnetic anomalies usually are developed. Either we are grossly mistaken in our interpretation of these fe ...
Structure of the larvikite-lardalite complex, Oslo
... jointing, in contrast to many of the larvikite-lardalite rocks, and thereby have different geomorphological properties. These syenites correspond to rocks previously described as belonging to a foyaite-hedrumite-pulaskite series. Remapping has revealed that these rocks clearly postdate the larvikite ...
... jointing, in contrast to many of the larvikite-lardalite rocks, and thereby have different geomorphological properties. These syenites correspond to rocks previously described as belonging to a foyaite-hedrumite-pulaskite series. Remapping has revealed that these rocks clearly postdate the larvikite ...
Dumitru FRUNZESCU
... governmental institutions licensed to manage “the geologic fund”. Whether they were called Research Institutes, Geological Survey or Agencies for the regulation and the evolution of the resources and reserves potential, once they appeared, they diversified a lot its specialization, they created its ...
... governmental institutions licensed to manage “the geologic fund”. Whether they were called Research Institutes, Geological Survey or Agencies for the regulation and the evolution of the resources and reserves potential, once they appeared, they diversified a lot its specialization, they created its ...
Unit 1 Lesson 3: Definition Assignment (Original)
... How does a listric normal fault occur? Listric normal faults are formed when two plates break apart and begin to move away from each other. This induces stress on the main curved fracture. During fault (fracture in the Earth’s surface) movement, the piece of rock above the curved fracture descends a ...
... How does a listric normal fault occur? Listric normal faults are formed when two plates break apart and begin to move away from each other. This induces stress on the main curved fracture. During fault (fracture in the Earth’s surface) movement, the piece of rock above the curved fracture descends a ...
Brittle fracture - Flaney Associates
... Fundamentals of Fracture Introduction: One of the most important concepts in Materials Science and Engineering is fracture. In its simplest form, fracture can be described as a single body separated into pieces by an imposed stress. For engineering materials there are two possible modes of fracture, ...
... Fundamentals of Fracture Introduction: One of the most important concepts in Materials Science and Engineering is fracture. In its simplest form, fracture can be described as a single body separated into pieces by an imposed stress. For engineering materials there are two possible modes of fracture, ...
Electromagnetic images of a volcanic zone
... in the region of Mount Meager (50°34’N, 123°23’W)and Mount Cayley (50°7’N,123°17’W) (Fig. 3). Acquisition of these data was undertaken both in-house (Mount Meager sites), and by commercial contract, and was funded as part of two programmes: the Federal Geothermal Energy Program of the early 1980s an ...
... in the region of Mount Meager (50°34’N, 123°23’W)and Mount Cayley (50°7’N,123°17’W) (Fig. 3). Acquisition of these data was undertaken both in-house (Mount Meager sites), and by commercial contract, and was funded as part of two programmes: the Federal Geothermal Energy Program of the early 1980s an ...
7 Structure of Rock Bodies
... short, what factors control the type of deformation that rocks experience? To understand this, you need to understand the forces on rocks. Force applied to an area is stress. Stress is the same thing as pressure and is a measure of the intensity of the force or of how concentrated the force is. Ever ...
... short, what factors control the type of deformation that rocks experience? To understand this, you need to understand the forces on rocks. Force applied to an area is stress. Stress is the same thing as pressure and is a measure of the intensity of the force or of how concentrated the force is. Ever ...
TaskForceMajella
The TaskForceMajella (TFM) is an industry funded geoscientific research project conducted between the years 1998 and 2005. The project involved numerous universities distributed worldwide, and was sponsored by a number of international major oil companies. The area of research was the Majella Mountain in Central Italy, regarded as an analogue of a faulted and fractured hydrocarbon reservoir as can be found in major provinces like the Middle East, Caspian Basin, Mediterranean Basin, and other areas. The scope was to obtain knowledge on the relation between fracture and fault generation, and all types of geological aspects of the evolution of the geological structure.