BH O`Brien - Department of Natural Resources
... isotropic granodiorite and a marginal phase of diorite porphyry (Unit 8; Figures 1, 2 and 3). Best exposed near Rocky Pond, this intrusion was emplaced along and across several of the imbricate structures associated with the Tommys Arm Fault. An early syn-metamorphic structure within this fault zone ...
... isotropic granodiorite and a marginal phase of diorite porphyry (Unit 8; Figures 1, 2 and 3). Best exposed near Rocky Pond, this intrusion was emplaced along and across several of the imbricate structures associated with the Tommys Arm Fault. An early syn-metamorphic structure within this fault zone ...
Banner Rocks - The Geological Heritage of
... of Clare are much younger. The rocks themselves are about 315 million years old and were deposited in an ancient sedimentary basin similar to modern day deltas in the Gulf of Mexico, West Africa and Brazil. This offers an opportunity for geology students and major petroleum companies the world over ...
... of Clare are much younger. The rocks themselves are about 315 million years old and were deposited in an ancient sedimentary basin similar to modern day deltas in the Gulf of Mexico, West Africa and Brazil. This offers an opportunity for geology students and major petroleum companies the world over ...
Revisit and insight into the dilemma of strong and brittle materials
... subsequent condition. In order to study the relation of GB properties to GB type and structure, systematic experimental investigation has been extensively performed by using orientation-controlled bicrystals of metals and alloys, more recently intermetallic, semiconductor and ceramic materials. We c ...
... subsequent condition. In order to study the relation of GB properties to GB type and structure, systematic experimental investigation has been extensively performed by using orientation-controlled bicrystals of metals and alloys, more recently intermetallic, semiconductor and ceramic materials. We c ...
Front, left to right: Mark Handy, Tuncay Taymaz, Jean
... problem of deformational transients. Clearly, we need to improve the spatial resolution of our observational methods. Increasing the density of observational networks (e.g., GPS networks) can provide both higher resolution locations and much lower detection levels in seismic magnitude. Combining sei ...
... problem of deformational transients. Clearly, we need to improve the spatial resolution of our observational methods. Increasing the density of observational networks (e.g., GPS networks) can provide both higher resolution locations and much lower detection levels in seismic magnitude. Combining sei ...
Field Geology: Northern Arizona
... Mogollon Rim. Passing into and out of three National Forests called the Tonto, Prescott, and Coconino, elevation changes from a high desert environment to forest and mountain with an elevation of over 7,000’ in Flagstaff. As we rise higher into the mountains, just east of I-17 and the Little Colorad ...
... Mogollon Rim. Passing into and out of three National Forests called the Tonto, Prescott, and Coconino, elevation changes from a high desert environment to forest and mountain with an elevation of over 7,000’ in Flagstaff. As we rise higher into the mountains, just east of I-17 and the Little Colorad ...
Frimmel_Chameis subterrane_Gariep
... associated with the occurrence of hyaloclastites. Unusual modal proportions which are not compatible with any magma composition indicate extensive metasomatism, leading to epidosite, hornblendite, and ophicarbonate made up of epidote, calcite, plagioclase, actinolite and chlorite. Other expressions ...
... associated with the occurrence of hyaloclastites. Unusual modal proportions which are not compatible with any magma composition indicate extensive metasomatism, leading to epidosite, hornblendite, and ophicarbonate made up of epidote, calcite, plagioclase, actinolite and chlorite. Other expressions ...
Field Trip Guide
... The parauthochthon is separated from the autochthon (a term used to describe rocks that rocks that have not been significantly transported from their site of formation/deposition) in New York by a major unnamed fault that lies beneath Lake Champlain. In the autochthon, Mesoproterozic metamorphic roc ...
... The parauthochthon is separated from the autochthon (a term used to describe rocks that rocks that have not been significantly transported from their site of formation/deposition) in New York by a major unnamed fault that lies beneath Lake Champlain. In the autochthon, Mesoproterozic metamorphic roc ...
Hoggar Shield gold mineralization- Khoudour
... formations. This complex is known as “Pharusian series” [3, 7, 11, 14]. The Hoggar Shield [14] is characterized by a single major folding corresponding to the Katanga-Damarean epoque maximum age of which belongs to the age range of 680-550 million years according to numerous determinations of massif ...
... formations. This complex is known as “Pharusian series” [3, 7, 11, 14]. The Hoggar Shield [14] is characterized by a single major folding corresponding to the Katanga-Damarean epoque maximum age of which belongs to the age range of 680-550 million years according to numerous determinations of massif ...
Using Igneous Rocks to Probe the Evolution of the Lithosphere Terry
... Using Igneous Rocks to Probe the Evolution of the Lithosphere Terry Plank Boston University, Dept. of Earth Sciences, 685 Commonwealth Ave., Boston, MA 02215, [email protected] The Contribution of Geology and Geochemistry to USArray There are two ways in which geological studies of rocks can complement ...
... Using Igneous Rocks to Probe the Evolution of the Lithosphere Terry Plank Boston University, Dept. of Earth Sciences, 685 Commonwealth Ave., Boston, MA 02215, [email protected] The Contribution of Geology and Geochemistry to USArray There are two ways in which geological studies of rocks can complement ...
Email addresses
... range of 1030–1140 °C (based on the garnet-clinopyroxene thermometers of Ellis and Green, 1979). The majority of the primary clinopyroxenes shows the usual chondrite normalized REE pattern of upper mantle clinopyroxenes coexisting with garnet (i.e. enriched in LREE and depleted in HREE). However, so ...
... range of 1030–1140 °C (based on the garnet-clinopyroxene thermometers of Ellis and Green, 1979). The majority of the primary clinopyroxenes shows the usual chondrite normalized REE pattern of upper mantle clinopyroxenes coexisting with garnet (i.e. enriched in LREE and depleted in HREE). However, so ...
- ePrints Soton
... maps (1983, 1984a, b), but the best known are Pettifor maps (1984, 1986). This method orders the very large database into domains of different structure types and can be used as an initial guide in the search for new compounds with a required structure type. Combinatorial methods from both computati ...
... maps (1983, 1984a, b), but the best known are Pettifor maps (1984, 1986). This method orders the very large database into domains of different structure types and can be used as an initial guide in the search for new compounds with a required structure type. Combinatorial methods from both computati ...
Field guide
... The Rio Grande rift extends from Colorado, USA, on the north to the state of Chihuahua, Mexico, on the south, dividing the Colorado Plateau on the west from the interior of the North American craton on the east (Fig. 1). It is named for the Rio Grande, the major river that flows through most of its ...
... The Rio Grande rift extends from Colorado, USA, on the north to the state of Chihuahua, Mexico, on the south, dividing the Colorado Plateau on the west from the interior of the North American craton on the east (Fig. 1). It is named for the Rio Grande, the major river that flows through most of its ...
3D restoration of a Cretaceous rift basin in Kilen, eastern North
... of a series of at least five, 7–10 km-spaced, NNW–SSEstriking faults forming the Trolle Land Fault System (ZinkJørgensen, 1994; Zink-Jørgensen & Håkansson, 1994). It initiated during the Late Carboniferous (Stemmerik et al., 1996) and is believed to continue to Amdrup Land in the southeast where fau ...
... of a series of at least five, 7–10 km-spaced, NNW–SSEstriking faults forming the Trolle Land Fault System (ZinkJørgensen, 1994; Zink-Jørgensen & Håkansson, 1994). It initiated during the Late Carboniferous (Stemmerik et al., 1996) and is believed to continue to Amdrup Land in the southeast where fau ...
Thermoelectric Properties and Site-Selective Rb /K Distribution in
... responds to melting, followed by an exothermic sharp peak of crystallization; see Figure 3. The melting points of the different members of the series were 681, 689, 682, and 682 °C for the members x ) 0.2, 0.5, 0.8, and 1.0, respectively. However, the samples did not crystallize congruently and afte ...
... responds to melting, followed by an exothermic sharp peak of crystallization; see Figure 3. The melting points of the different members of the series were 681, 689, 682, and 682 °C for the members x ) 0.2, 0.5, 0.8, and 1.0, respectively. However, the samples did not crystallize congruently and afte ...
Geological characteristics of hydrocarbon reservoirs
... such as porosity, permeability, and resistivity, which are of great importance when exploring for oil. • Information about the fluids contained in the reservoir rock. • Speed in using diagrams, if a full set of logs is available, when exploration is at an advanced stage or completed. The most import ...
... such as porosity, permeability, and resistivity, which are of great importance when exploring for oil. • Information about the fluids contained in the reservoir rock. • Speed in using diagrams, if a full set of logs is available, when exploration is at an advanced stage or completed. The most import ...
A gravity investigation of the Middleton granite, near Inverurie
... quartz veins spatially associated with this granite (Colman et al., 1989). A gravity survey was undertaken with the aim of providing information on the form of the intrusion, and its relationship with the Eastern Highlands granite batholith. The gravity survey would not provide a direct indication o ...
... quartz veins spatially associated with this granite (Colman et al., 1989). A gravity survey was undertaken with the aim of providing information on the form of the intrusion, and its relationship with the Eastern Highlands granite batholith. The gravity survey would not provide a direct indication o ...
DWM-132 - Idaho Geological Survey
... Strike and dip of bedding; ball indicates bedding known to be ...
... Strike and dip of bedding; ball indicates bedding known to be ...
Stratigraphic and structural evolution of the Blue Nile Basin
... during Gondwana break-up (Figure 1). These rift basins terminate sharply in the northwest against the NE-trending Central African Shear Zone, which is considered to be a major dextral strike-slip shear zone (Figure 1; McHargue et al. 1992; Binks and Fairhead 1992). However, there might be some litho ...
... during Gondwana break-up (Figure 1). These rift basins terminate sharply in the northwest against the NE-trending Central African Shear Zone, which is considered to be a major dextral strike-slip shear zone (Figure 1; McHargue et al. 1992; Binks and Fairhead 1992). However, there might be some litho ...
Geofile 2016-3 synopsis - Ministry of Energy and Mines
... Geofile 2016-3 contains the results, methodology and quality control data from geochronological analyses of samples collected during fieldwork conducted as part of the Southern Nicola Arc Project (SNAP, Mihalynuk and Logan 2013a, b; Mihalynuk et al., 2014a, b, c; Mihalynuk et al., 2015; Mihalynuk et ...
... Geofile 2016-3 contains the results, methodology and quality control data from geochronological analyses of samples collected during fieldwork conducted as part of the Southern Nicola Arc Project (SNAP, Mihalynuk and Logan 2013a, b; Mihalynuk et al., 2014a, b, c; Mihalynuk et al., 2015; Mihalynuk et ...
STRUCTURAL GEOLOGY
... in three ways—statement method, e.g., 1 cm = 0.5 km, representative fraction method, e.g., 1:50,000 and graphical method in the form of a figure), direction, symbol and colour. On the basis of scale, maps are of two types: large-scale map (map gives more information pertaining to a smaller area, e.g. ...
... in three ways—statement method, e.g., 1 cm = 0.5 km, representative fraction method, e.g., 1:50,000 and graphical method in the form of a figure), direction, symbol and colour. On the basis of scale, maps are of two types: large-scale map (map gives more information pertaining to a smaller area, e.g. ...
Relocation Of Earthquakes Western Puerto Rico Region Using
... improve our understanding of this seismicity by identifying and understanding specific fault structures in the region. It is important to determine the location of such faults because the hypocentral distance affects the amount of on-land shaking, which is a factor used for earthquake planning by go ...
... improve our understanding of this seismicity by identifying and understanding specific fault structures in the region. It is important to determine the location of such faults because the hypocentral distance affects the amount of on-land shaking, which is a factor used for earthquake planning by go ...
AM N Pz Scale 1:8 500 000 - Norges geologiske undersøkelse
... alone prior to 200 AD (Stenvik, 2005). The oldest record of underground mining (late 12th C) is from the Akersberg silver deposit (of Permian age) in Oslo (Nilsen & Bjørlykke, 1991). Smallscale mining of copper and silver ores began in several parts of the country in the first half of the 16thC (Fal ...
... alone prior to 200 AD (Stenvik, 2005). The oldest record of underground mining (late 12th C) is from the Akersberg silver deposit (of Permian age) in Oslo (Nilsen & Bjørlykke, 1991). Smallscale mining of copper and silver ores began in several parts of the country in the first half of the 16thC (Fal ...
Deep structure of the Mid Norway rifted margin
... assic, more gently dipping succession. T hus, in this area, a basinwards-sloping basement topography was clearly present as early as in the Triassic. In the south-central parts of the platform (Fig. 5), our interpretation shows a scoop-shaped basin, fragmented at depth into a series of rotated half- ...
... assic, more gently dipping succession. T hus, in this area, a basinwards-sloping basement topography was clearly present as early as in the Triassic. In the south-central parts of the platform (Fig. 5), our interpretation shows a scoop-shaped basin, fragmented at depth into a series of rotated half- ...
Structural and stratigraphic control of porphyry and related
... that are overlain by thick (100 m +) sections of polymictic cobble-boulder conglomerate, which imply abrupt basin deepening and underfilled conditions followed by uplifting, significant relief, and a proximal but integrated drainage system. An overlying predominantly fine-grained siliciclastic secti ...
... that are overlain by thick (100 m +) sections of polymictic cobble-boulder conglomerate, which imply abrupt basin deepening and underfilled conditions followed by uplifting, significant relief, and a proximal but integrated drainage system. An overlying predominantly fine-grained siliciclastic secti ...
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.