1 edition of Deformation of the eastern Sudbury basin [thesis] found in the catalog.
Deformation of the eastern Sudbury basin [thesis]
|LC Classifications||QE 604 C874 1996 thesis|
|The Physical Object|
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The Sudbury Basin / ˈ s ʌ d b ə r i /, also known as Sudbury Structure or the Sudbury Nickel Irruptive, is a major geological structure in Ontario, is the third-largest known impact crater or astrobleme on Earth, as well as one of the oldest.
The crater formed billion years ago in the Paleoproterozoic : Ma, Paleoproterozoic. Paleomagnetic results from fine-grained samples of Sudbury breccia, collected from 28 sites around the northern half of the Ga Sudbury Igneous Complex (SIC), reveal the existence of two major. This thesis addresses the spatial distribution of structures and deformation geometry in the southern Sudbury Basin, Ontario, a synclinal fold basin.
Major components are low-temperature fabric development in the Sudbury Igneous Complex (SIC), the relation between fabrics and foldAuthor: Iris Lenauer. The Sudbury Basin is highly asymmetric, evident by variation in the dips of the SIC contacts (Dreuse et al., ) and metamorphic foliation (Shanks and Schwerdtner, a, Shanks and Schwerdtner, b, Lenauer and Riller, b) notably in the northern and the southern SIC, i.e., the North Range and the South Range ().In the North Range, the SIC dips moderately toward the Basin centre and Cited by: 2.
The Sudbury Structure is a ∼27 × 60 km oval-shaped basin with an original diameter estimated to be – km (Peredery and Morrison,Grieve,Spray and Thompson,Spray et al., ).The oval shape is believed by Shanks and Schwerdtner, a, Shanks and Schwerdtner, b to be the result of deformation during late stages of the Penokean orogeny (– Ga).Cited by: • The Sudbury Basin or Structure was formed by the impact of a 10 km meteorite.
• This is the second largest impact crater in the world. • The original crater is guessed to be about km in diameter. • Impact occurred about billion years ago. • Original crater altered by subsequent geologic processes. Abstract. Abstract— The Offset Dikes of the Ga Sudbury Igneous Complex (SIC) constitute a key topic in understanding the chemical evolution of the impact melt, its mineralization, and the interplay between melt migration and impact-induced deformation.
The origin of the melt rocks in Offset Dikes as well as mode and timing of their emplacement are still a matter of by: To be published in the Journal of Geophysical Research J. Geophys. Res. (5) Implications of Transient Deformation in the Northern Basin and Range, Western United States Ashutosh Chamoli1,2,*, Anthony R.
Lowry3, Tamara N. Jeppson4 1National Geophysical Research Institute, Council of Scientific & Industrial Research, Hyderabad, India. The importance of discontinuous deformation in the eastern Sudbury Igneous Complex General geology of the Sudbury Structure The Geology and Ore De-posits of the Sudbury Structure Jan D Doman.
The Garson Ni–Cu–platinum group element deposit is a deformed, overturned, low Ni tenor contact-type Deformation of the eastern Sudbury basin [thesis] book along the contact between the Sudbury Igneous Complex (SIC) and stratigraphically underlying rocks of the Huronian Supergroup in the South Range of the Ga Sudbury structure.
The ore bodies are coincident with steeply south-dipping, north-over-south D1 shear zones, Cited by: Read "Fold origin of the NE-lobe of the Sudbury Basin, Canada: Evidence from heterogeneous fabric development in the Onaping Formation and the Sudbury Igneous Complex, Journal of Structural Geology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
The occurrence of shock metamorphic features substantiates an impact origin for the Ga old Sudbury Structure, but this has not been universally accepted.
Recent improvements in knowledge of large-scale impact processes, combined with new petrographic, geochemical, geophysical (LITHOPROBE) and structural data, allow the Sudbury Structure to be interpreted as a multi-ring Cited by: Along with other eastern North American rift basins, it has incurred significant post-rift deformation.
Previous authors have identified three phases of deformation in the Hartford basin: WNW-ESE extension (rifting), NNE-SSW shortening (basin-parallel inversion), and E-W shortening (consistent with the current state of stress on the eastern.
Paleomagnetic results from fine-grained samples of Sudbury breccia, collected from 28 sites around the northern half of the Ga Sudbury Igneous Complex (SIC), reveal the existence of two major components of magnetization, A and B.
A, carried by magnetite, was formed close to the time of the SIC and has a direction that is related to the dip of the norite unit within the different ranges. the South Range. The location of the basal deformation is coincident with and could be related to a linear gravity high observed within the Sudbury Basin.
Geological interpretation along six profiles was used to develop a three-dimensional geological model of the Sudbury structure andCited by: 5. Sudbury district geologist Dan Farrow of the Ontario Geological Survey examines a mineral sample at his office near Laurentian University. Farrow said there are a number of potential Sudbury Basin deposits that could be developed in the near future, including Glencore's Errington and Vermilion projects.
Constraints on the current stress regime of the actively extending northern Basin and Range province are provided by deformation data (focal mechanisms and fault slip studies), hydraulic fracturing in situ stress measurements, borehole elongation ("breakouts') analyses, and alignment of young volcanic vents.
The integrated data indicate significant variations both in principal stress. Structural controls on the pathways to mineralization in the East Range of the Sudbury Basin, Canada Transport and emplacement of Cu-Ni-PGE sulfides into the footwall of the Sudbury Igneous Complex (SIC) was controlled by the pre-existing geological framework as well as processes that occurred during and after meteorite impact cratering.
For this reason the Sudbury Basin stress tensor if it existed would have had to be updated with the addition of the several stress measurements in the Basin in recent times following its development.
Strangely, this is hardly the case. The paper draws the attention of rock engineers to the myth of the Sudbury Basin stress : Fidelis Suorineni, Farid Malek. The asymmetric form of the basin is structurally controlled along its southern flank by northeast-southwest trending faults and resembles the southern part of the Rathlin Basin.
Gravity modelling predicts a total basin depth of almost 4 km. The stratigraphy of the basin has been tested in the Ballymacilroy and Langford Lodge boreholes. Constraints on the current stress regime of the actively extending northern Basin and Range province are provided by deformation data (focal mechanisms and fault slip studies), hydraulic fracturing in situ stress measurements, borehole elongation ("breakouts") analyses, and alignment of young volcanic vents.
The integrated data indicate significant variations both in principal stress Cited by: Constraints on the current stress regime of the actively extending northern Basin and Range province are provided by deformation data (focal mechanisms and fault slip studies), hydraulic fracturing in situ stress measurements, borehole elongation (“breakouts”) analyses, and alignment of young volcanic by: Structural characteristics of the Sudbury impact structure, Canada: Impact-induced versus orogenic deformation - A review Orogenic deformation, both preceding and following the impact event at Sudbury, strongly hinders a straightforward assessment of impact-induced geological processes that generated the Sudbury impact structure.
This study used a quantitative digital approach to determine the density of lineaments mimicking the geometry of the northern Sudbury Igneous Complex contact (SIC).
The study revealed a lineament density at ~25km north of the northern SIC contact, suggesting Author: Sara Lise M. Underhay. Electronic Thesis and Dissertation Repository AM Constraining the Formation and Alteration of Sudbury Breccia, Ontario, Canada: Implications for Footwall Cu-Ni-PGE Exploration Jonathan W.
O'Callaghan The University of Western Ontario Supervisor Dr. G.R. Osinski The University of Western Ontario Joint Supervisor Dr. R.L. LinnenAuthor: Jonathan W O'Callaghan. Davis, Gene H.,A gravity study of the San Luis Basin, Colorado.
Djeddi, Raba,An integrated geophysical and geological study of the deep structure and tectonics of the Permian Basin of west Texas and southeastern New Mexico. Dowdney, Jack R.,Geology of. Strike-slip Deformation, Basin Formation, and Sedimentation [Biddle, Kevin T.
And Nicholas Christie-Blick (Editors)] on *FREE* shipping on qualifying offers. Strike-slip Deformation, Basin Formation, and SedimentationAuthor: Kevin T. And Nicholas Christie-Blick (Editors) Biddle. Guide to the geology of Sudbury Basin, Ontario, Canada: Apollo 17 Training Exercise 5/23//25/ USGS Open-File Report [Michael Dence, Eugene L.
Boudette, Ivo Lucchitta] on *FREE* shipping on qualifying offers. The United States Geological Survey (USGS) is a scientific organization created inand is part of the U.S. government.
The Ga Sudbury impact structure is considered a remnant of a multi-ring basin with an estimated original diameter of km. The so-called “Basal Onaping Intrusion” form discontinuous sheets between the Granophyre of the Sudbury Igneous Complex (SIC) and the Sandcherry Member of the Onaping Formation and had been considered part of the complex breccia series of the Onaping Author: Denise Anders.
Sulfide and Wall Rock Deformation at the South Bay Mine, Northwestern Ontario: University of Toronto: M. T Assad, R.J. The Formation of Certain Granite-like Rocks in the Footwall of the Sudbury Norite, Northwest of the Sudbury Basin: McGill University: M.
Regional: SUD T Atchison, D.W. FINAL REPORT Table Chronology of Events Influencing the Sudbury Region _____ Year. Formation of Sudbury Basin ~2 billion years ago.
Ojibway, Huron and Ottawa First Nations settle in the area ~10, years ago. First European explorer (Champlain) First mapping of mineralization in Sudbury area Sudbury Basin Meteorite Impact Sudbury Basin Realistic Assumptions By: Lenore Cullen I chose to reasearch the Sudbury Basin because I have always had an interest in astronomy and had never calculated the math behind it.
I thought it would be really interesting to analyze the. The absolute timing of these events is unknown. All deformation was complete prior to the intrusion of the l,m.y.-old Sudbury lly the (N1) Sudbury norite occupied an open syncline, with limbs dipping approximately 20 degrees, which plunged gently to the by: This led to the proposal by R.
Dietz in that the Sudbury Structure was a tectonically deformed impact basin, occupied by an extrusive lopolith, and analogous to the small lunar maria. He then searched for and found shatter cones at by: Sudbury, Ontario: Journal of Geology, v. 72, p. (and others) Whole-rock age and initial 87Sr/*6Srof volcanics underlying fossiliferous Lower Cambrian in the Atlantic provinces of Canada: Canadian Journal of Earth Sciences.
State of Stress and Modern Deformation of the Northern. Basin and Range Province. MARY LOU ZOBACK. U.S. Geological Survey, Menlo Park, California Constraints on the current stress regime of the actively extending northern Basin and Range.
Riller, U. Upper-crustal deformation, magmatism and plateau formation in the southern central Andes. Habilitation thesis. Free University Berlin, Germany. pages. Riller, U. Tectonometamorphic episodes in the Eastern Penokean Orogen and their significance for the origin of the Sudbury Igneous Complex, central Ontario, Canada.
The Animikie Group is a geologic group composed of sedimentary and metasedimentary rock, having been originally deposited between 2, and 1, million years ago during the Paleoproterozoic era, within the Animikie group of formations is geographically divided into the Gunflint Range, the Mesabi and Vermilion ranges, and the Cuyuna the map, the Animikie Group is the dark.
This is a list of possible impact structures on than features on Earth include candidate impact sites that have appeared several times in the literature and/or have been endorsed by the Impact Field Studies Group (IFSG) and/or Expert Database on Earth Impact Structures (EDEIS).
The Earth Impact Database (EID) is used at Wikipedia as authoritative using the terminology "confirmed". Subclass 1(i) contains only one mining camp, the Sudbury basin. It is the world’s largest historic Ni producer and its production plus reserves make up approximately 30 percent of the world’s resources (Table 1).
The geologic setting of these Ni sulfide ores is at the margins of an igneous complex formed from an impact melt (Fig.
2a. Seismic Interpretation and Basin Analysis of the Longford Sub-basin i Abstract The Longford Sub-basin in northern Tasmanian is a continental rift initiated during the Late Cretaceous to early-Palaeocene, associated with the break up of Australia and Antarctica.
The basin is approximately km (axial length) by 30 km and formed due to NE-SW.Banded iron formations (also known as banded ironstone formations or BIFs) are distinctive units of sedimentary rock that are almost always of Precambrian age. A typical banded iron formation consists of repeated, thin layers (a few millimeters to a few centimeters in thickness) of silver to black iron oxides, either magnetite (Fe 3 O 4) or hematite (Fe 2 O 3), alternating with bands of iron Primary: iron oxides, shales and cherts.Soft-sediment deformation structures in Lower Badenian (Middle Miocene) foreshore sands and their trigger mechanism (Carpathian Foredeep Basin, Czech Republic) Figure 2: Schematic vertical log with the various lithofacies and position of all samples under study.