Trans Hudson Orogen

Hoffman, 1988; Lewry and Stauffer 1990). Diaconescu 1,2,3. Definition of trans-genders in the Idioms Dictionary. South Baffin also hosts other gem minerals in complexly deformed, high-grade metamorphic rocks. 8 Ga collision between the Archean Superior craton. Describe the aborted ocean rift in the Lake Superior region, massive extrusions of basaltic lava flows, and the addition of copper ores to the Lake Superior. en Key results include (1) evidence for west-vergent crustal stacking and exhumation in the eastern Trans-Hudson Orogen in the form of preserved Moho topography and the presence of higher grade (higher velocity) rocks in the hanging wall of an east-dipping crustal stack; (2) definition of the eastward extent of the Archean Sask craton in the subsurface based on distinct lower crustal. the Superior Craton during the Trans-Hudson Orogeny (figs. lucas geological survey of canada, 601 booth street, ottawa, ontario k1a 0e8, canada abstract. These include the 2. 81 Ga for the New Quebec orogen. They recognized the collision zone as the southern extension of Lewry's (1984) Trans-Hudson Orogen, a continent-to-continent collision suture. Hollings and Andell, 2002, Maxeiner et al. com! 'That Ho Over There' is one option -- get in to view more @ The Web's largest and most authoritative acronyms and abbreviations resource. KUSKY4, WALTER D. Seven of these objects are related to mountains or hills and are labeled as such. and James H. Discuss the Labrador Trough's relationship to the Trans-Hudson orogen. Geological Society of America, Abstracts with programs, v. Nelson* Department of Geology, Syracuse University, Syracuse, New York 13224 D. The Kisseynew metasedimentary gneiss belt (Kisseynew domain), which represents one of the most extensive tectonic segments of the Paleoproterozoic Trans-Hudson orogen in north-central Canada, initially developed in a back-arc setting. Mazatal Orogen. Thot synonyms. Trans-Hudson orogen. St-Onge Michael P. Folded strata related to the Sutton Inliers are shown aeromagnetically to extend discontinuously northwards towards the Hudson Bay coast upon apparently reworked Archean crust within the Trans-Hudson Orogen. These periods of tectonism were punctuated by uplift, erosion, and deposition of sedimentaryrocks (Ashton et al. , and Karl E. We speculate that the Saskatchewan Craton, rather than representing an exotic continental fragment, rifted from the Superior and/or Hearne Provinces at ca. Paleoproterozoic arc magmatism imposed on an older backarc basin: Implications for the tectonic evolution of the Trans. Over the last 20-30 years, active and. Both have been compared to the present-day Himalayan-Karakoram-Tibetan Orogen (HKTO). Trans-Hudson Orogen Transect listed as THOT. 8 Ga Penokean orogen (WI & MI): insight into post-Penokean tectonism • Kristen Kopczynski, 2001. In: Lewry JF, Stauffer MR (eds) The Early Proterozoic Trans-Hudson Orogen of North America. The Hearne Craton is a craton in northern Canada which, together with the Rae Craton, forms the Western Churchill Province. Trans-Hudson Orogen (THO; Mercadier et al. Grenville Orogeny 1. usage of the term Appalachian orogen to describe the deformed belt that evolved between the Late Proterozoic and the Late Paleozoic along the eastern margin of North America (e. Basement rocks of the Penokean Orogen are inferred to have been covered by water or younger sediments southeast of the Iowa Basin. The Hudson Bay Arc including the Sutton Inliers in the south-west of the structure. Specific study areas include the Grenville orogen of central Ontario, in collaboration with N. Journal of Structural Geology, v. The Trans-Hudson orogeny or Trans-Hudsonian orogeny was the major mountain building event that formed the Precambrian Canadian Shield, the North American Craton, and the forging of the initial North American continent. 0 Ga) Little to no recycling of underlying sedimentary rocks Longshore Transport was the main method to re-distribute sediment along the shoreline Next: Completing sequence stratigraphic and paleoclimate interpretations, and expanding our research into coeval. 7 Ga) intracontinental deformation in the Trans-Hudson Orogen (Canada) produced a series of orogen-parallel high-angle faults and folds. It separates the lower plate Archean Superior craton to the south from an upper plate collage of Archean (-Paleoproterozoic) crustal blocks of the Churchill plate to the north and the North Atlantic craton to the east. St-Onge et al more. The presence of this, apparently uncharacteristic, mineralization within the Proterozoic orogen was initially a puzzle. South Baffin also hosts other gem minerals in complexly deformed, high-grade metamorphic rocks. The ocean closed during a protracted period of island-arc and microcontinent accretion. 87 / 8 votes) Translation Find a translation for Trans Hudson. North American plate to the Greenland plate. The La Ronge Domain is a granite greenstone belt in the Saskatchewan segment of the ca. What is the abbreviation for Trans-Hudson Orogen Transect? What does THOT stand for? THOT abbreviation stands for Trans-Hudson Orogen Transect. This thesis is divided into two major parts: paleomagnetism of the Hanson Lake block of the Trans-Hudson orogen and paleomagnetism of Paleozoic and Mesozoic strata from Stikinia of the western Canadian Cordillera. It is the principal element of a network of such belts that formed by Proterozoic crustal accretion and the collision of pre-existing Archean continents. 75 Ga as well as the 1. The North American Central Plains conductivity anomaly within the Trans-Hudson orogen in northern Saskatchewan. The Trans-Hudson orogeny or Trans-Hudsonian orogeny was the major mountain building event that formed the Precambrian Canadian Shield, the North American Craton (also called Laurentia), and the forging of the initial North American continent. We speculate that the Saskatchewan Craton, rather than representing an exotic continental fragment, rifted from the Superior and/or Hearne Provinces at ca. A study of the P-T-t-fluid evolution of the Glennie domain, Trans-Hudson Orogen. Synonyms for Trans-jordan in Free Thesaurus. October 12-13, 1990 LITHOPROBE Trans-Hudson Orogen Transect (Saskatoon) 26. WODICKA & E. 6 Ga, with multiple post-mineralization alteration events (Fig. ), The Early Proterozoic Trans-Hudson Orogen of North America. The Wawa Subprovince extends for approximately 850 km from the Kapuskasing Structural Zone in northeastern Ontario to west-southwest into the Minnesota River Valley area in North Dakota, where the Subprovince truncated by the Proterozoic Trans-Hudson Orogen. Both have been compared to the present-day Himalayan-Karakoram-Tibetan Orogen (HKTO). 0 billion 01. Antonyms for Trans-jordan. and Stauffer, M. Green et al. MacKay 313 Dengying Formation Gas System of the Sichuan Basin, Southwest China: Model for Precambrian Indigenous Hydrocarbon Accumulation G. The North American Central Plains conductivity anomaly within the Trans-Hudson orogen in northern Saskatchewan. What is the abbreviation for Trans-Hudson Orogen Transect? What does THOT stand for? THOT abbreviation stands for Trans-Hudson Orogen Transect. Thot synonyms. The Trans-Hudson Orogen (Hoffman, 1988; Lewry & Collerson, 1990) is a Himalayan-scale collisional orogenic belt that extends from the south-central part of the North American continent to its northeastern edge, where it is truncated by the younger Meso- to Neoproterozoic Grenville Orogen. Hauck Institute for the Study of the Continents, Cornell University, Ithaca, New York 14853 L. Its petrogenesis and tectonic context has been interpreted based on a 900 km granitoid rock geochemical-isotopic (Nd-O) transect. It lies in the central portion of the Trans-Hudson orogeny and was formed by arc volcanism during the Paleoproterozoic. Petrotectonic evolution of Paleoproterozoic granitic rocks across the 1. Thesis 40 Ar/ 39 Ar Study of The Northwestern Reindeer Zone, Trans-Hudson Orogen: Reindeer Lake, Saskatchewan. Paleoproterozoic Trans-Hudson Orogen (THO) and adjacent Precambrian Shield in Canada. Faulting of crystalline rocks with sedimentary and volcanic strata is typical of what can be documented in the deeper levels (roots) of mountain belts, in this case the Himalayan-scale Trans-Hudson orogen of North America. SPUD Version 3. 87 / 8 votes) Translation Find a translation for Trans Hudson. Abstract The Paleoproterozoic Torngat Orogen of northern Labrador, a segment of the Trans‐Hudson Orogen, records the consequences of the convergence and collision of the Rae and Nain cratons and the intervening Burwell Domain. Hoffman, 1988, Van Kranendonk et al. The last major Proterozoic collision before assembly of Rodinia is recorded by rocks in the: Grenville Orogen. trans-genders phrase. Complementing the DMC's SEED and assembled data archives, which contain time series recordings, the SPUD system primarily contains derivative data products of other types (images, movies, etc. View/ Open. 8 billion 0>2. The Wyoming craton is located in the west-central United States-- more specifically, in Montana, Wyoming, and parts of northern Utah. 9 Ga, are found only in the subsurface in the eastern part of the state, but are exposed in the nearby Black hills. The results, combined with previous seismic imaging in the eastern North China craton, provide insight into the amalgamation of the Eastern and. uk/portal/en/persons/mary-fowler(1c5c4228-6098-4b00-84c5-b672f9b4386f)/publications. In the Paleoproterozoic Trans-Hudson Orogen, a well exposed section of mid-crust on Hall Peninsula, southeastern Baffin Island, offers an opportunity to improve our understanding of mid-crustal tectonothermal processes in hot, collisional orogens. The Trans-Hudson orogeny or Trans-Hudsonian orogeny was the major mountain building event (orogeny) that formed the Precambrian Canadian Shield, the North American Craton (also called Laurentia), and the forging of the initial North American continent. We collected a total of 110 samples, comprising plutons, pegmatites, and metasedimentary rocks. 2, Paper A-6, 20p. and Kaczmer, M. Hearne is one of the six Archaean cratons of the Canadian Shield (the other being Slave, Rae, Wyoming, Superior, Nain) that are bound together by Palaeoproterozoic orogenic belts. 8 Ga collision between the Archean Superior craton. on field geology that the Trans Hudson Orogen was similar in scale and nature to the ongoing Tibetan-Karakorem-Himalayan orogen of Asia (St-Onge et al. Trans-Hudson Orogen, Canada Hearne Province, Canada Fennoscandian (All Precambrian) Northern Territory, Australia South Australia (Mesoproterozoic) Ubendian Belt, SW Tanzania Transvaal Belt, South Africa IV NEOPROTEROZOIC-PALEOZOIC OROGENIC GOLD PROVINCES Andes (Eastern Cordillera) Appalachian Orogen, Eastern North America Pan-African Orogen. It contains some of the oldest rocks on the Earth, its interior has been stable for the longest period of time, and it was the first continent to achieve approximately its present size and shape. 85 Ga for Snowbird zone. This shows that seafloor spreading and associated oceanic-crust formation was an established mechanism of plate tectonics by at least 2 Ga. The orogen may represent an ancient analogue to the Himalayan. Lewry JF, Sibbald TII (1980) Thermotectonic evolution of the Churchill Province in northern Saskatchewan. This thesis is divided into two major parts: paleomagnetism of the Hanson Lake block of the Trans-Hudson orogen and paleomagnetism of Paleozoic and Mesozoic strata from Stikinia of the western Canadian Cordillera. Miscellaneous » Unclassified. 2004, 2009; fig. Seismic studies on the Trans-Hudson Orogen of western Canada Seismic studies on the Trans-Hudson Orogen of western Canada Ellis, R. The orogen may represent an ancient analogue to the Himalayan. of the Trans-Hudson Orogen on which we have plotted, in a generalized way, most of the localities at which we collected samples. The remarkable synchroneity of collision along the Big Sky orogen with tecto-nism in the Trans-Hudson orogen along the eastern margin of the Wyoming province. BibTeX @MISC{Transect98acquisitionsand, author = {Trans-hudson Orogen Transect and Kevin Maxwell Stevens and Bibliographie Semces Semces Bibliographiques and Ottawa On and K A On and Ottawaon Klaon and Canada Camda and Of Tee Lithoprobe and Trans-eiudson Orogen Transect and Kemn Maxwell Stevens}, title = {Acquisitions and Acquisitions et}, year = {1998}}. This collection of 27 papers reviews over a decade of progress in understanding the main tectonic elements of the orogen and includes a wide range of original contributions. 129 Figure 3 25. Formed due to a collision between two cratons, the THO is similar in scale and tectonic style to the modern Himalayan-Karakorum orogen. 8 billion — 2. Add to My List Edit this Entry Rate it: (2. 8 Ga Trans-Hudson Orogen. The step-heating technique is the conventional method for measuring Ar isotopes in K-bearing minerals. 8Ga Trans-Hudson Orogeny (THO) and is thus an ideal study locale to address this issue. Among the orogenic belts, two stand out due to their significant spatial extent. BibTeX @MISC{Transect98acquisitionsand, author = {Trans-hudson Orogen Transect and Kevin Maxwell Stevens and Bibliographie Semces Semces Bibliographiques and Ottawa On and K A On and Ottawaon Klaon and Canada Camda and Of Tee Lithoprobe and Trans-eiudson Orogen Transect and Kemn Maxwell Stevens}, title = {Acquisitions and Acquisitions et}, year = {1998}}. An attempt to split North America – The Mesoproterozoic Mid‐continent Rift. 150 Ma of opening of the Manikewan Ocean, from c. This is also when cyanobacteria evolved, a type of bacteria which uses the biochemical process of photosynthesis to. Lewry and M. Details of the Nesson complex suggest that segmentation of the field is related to transverse NE-SW disruptions in the magnetic data. Lithospheric processes and products in the southern Canadian Cordillera: a Lithoprobe perspective. Both have been compared to the present-day Himalayan-Karakoram-Tibetan Orogen (HKTO). Sims [and others] ; prepared in cooperation with the Geological Surveys of Minnesota [and others]. This collection of 27 papers reviews over a decade of progress in understanding the main tectonic elements of the orogen and includes a wide range of original contributions. The Superior province that welded (joined) the Hearne and Wyoming provinces during a. Questions and discussion. Dakotan Orogen relative to the broad Trans Hudson Orogen is also unclear. Magnetotelluric studies of the Trans-Hudson orogen over the last two decades, prompted by the discovery of a significant conductivity anomaly beneath the North American Central Plains (NACP), from over 300 sites yield an extensive database for interrogation and enable three-dimensional information to be obtained about the geometry of the orogen from southern North Dakota to northern Saskatchewan. The Proterozoic cyclic succession of the banded iron formations is: a. 96 Ga for Thelon orogen. 75 Ga in the Cheyenne belt. "Tectonic Model for the Proterozoic Growth of North America. Looking for abbreviations of THOT? It is Trans-Hudson Orogen Transect. Wopmay Orogen. Surface heat flow, crustal temperatures and mantle heat flow in the Proterozoic Trans-Hudson Orogen, Canadian Shield F. The Trans-Hudson Orogen contains juvenile Paleo-proterozoic terranes caught within these collisions as well as the reworked Archean margins of the Superior, Hearne, and Wyoming provinces, which bound the THO to the east, northwest, and south-west respectively. It gave rise to the Trans-Hudson orogen (THO), or Trans-Hudson Orogen Transect (THOT), (also referred to as the Trans-Hudsonian Suture Zone (THSZ) or Trans-Hudson suture) which is the largest. the Trans-Hudson Orogen The Trans-Hudson Orogen (Fig. ;Paleomagnetic results from a total of 71 sites are presented from the Hanson Lake pluton (HP), the Sahli granite (SG) and the Jan Lake granite (JG) in the Hanson Lake block. Rigorously the definition given by Carrey (1955, p. Sims [and others] ; prepared in cooperation with the Geological Surveys of Minnesota [and others]. The zonation of the Trans-Hudson belt is typical of collision zones: granitic rocks representing the eroded roots of a continental volcanic arc occur along the Churchill province margin, the medial zone comprises relics of oceanic…. 4 Ga intruded granites in the southern Laramie and Medicine Bow ranges such. More recent work in Hudson Bay shows thick lithosphere. Carbonne,1. 7 Ga) intracontinental deformation in the Trans-Hudson Orogen (Canada) produced a series of orogen-parallel high-angle faults and folds. 85 Ga for Snowbird zone. For each dated rock sample, a record containing basic information on geological setting, rock description, sample location, analytical method, age, interpretation, and literature citation is given. This structural region, known as the 'Foxe Fold Belt', has been mapped at reconnaissance scale and later in selective detail (Corrigan. Report on Selected Precambrian Environments in the Province of Ontario for Ontario Parks, Ministry of Natural Resources by C. More recent work in Hudson Bay shows thick lithosphere. Rolandone,1 C. royalholloway. Inferences of subduction polarity in other ancient orogens drawn from either reflection geometry or surface structures therefore need to be critically reviewed. The northeast-trending faults of the East Arm of Great Slave Lake continue in the subsurface as the Tathlina (TFZ) and Hay River fault zones (HRFZ; Williams, Fig. 8Ga Trans-Hudson Orogeny (THO) and is thus an ideal study locale to address this issue. MacHattie 2, and J. Best viewed and printed with Adobe Acrobat 5. In: The Early Proterozoic Trans-Hudson Orogen of North America (J. and James H. Wopmay Orogen. In the Paleoproterozoic Trans-Hudson Orogen, a well exposed section of mid-crust on Hall Peninsula, southeastern Baffin Island, offers an opportunity to improve our understanding of mid-crustal tectonothermal processes in hot, collisional orogens. The Colorado Orogen, or Colorado Province, includes the metamorphic rocks with dates around 1. The Trans-Hudson orogen separates the Wyoming province from the Superior province. 8 Ga Penokean orogen (WI & MI): insight into post-Penokean tectonism • Kristen Kopczynski, 2001. BibTeX @MISC{Transect98acquisitionsand, author = {Trans-hudson Orogen Transect and Kevin Maxwell Stevens and Bibliographie Semces Semces Bibliographiques and Ottawa On and K A On and Ottawaon Klaon and Canada Camda and Of Tee Lithoprobe and Trans-eiudson Orogen Transect and Kemn Maxwell Stevens}, title = {Acquisitions and Acquisitions et}, year = {1998}}. 80 Ga collision between the Superior and Hearne-Rae cratons during the Trans-Hudson Orogen in Laurentia, and the Akitkan Orogen in Siberia (2. Figure 1: Cratons and orogens of the Eastern Churchill Province. 8Ga Trans-Hudson Orogeny (THO) and is thus an ideal study locale to address this issue. Nelson* Department of Geology, Syracuse University, Syracuse, New York 13224 D. Question: WHat Is The Nature(geographic Distribution, Rock Type, Age) And Significance Of The Trans Hudson Orogen In The Evolution Of Ancestral North America?. As part of Lithoprobe's Trans-Hudson orogen transect investigations, magnetotelluric (MT) data were acquired along two profiles in the western part of the o1'ogen in 1992 and 1994 (Fig. As potassic intrusive rocks are absent immediately north of the Trans-Hudson orogen, north-directed subduction related to Churchill/Superior docking cannot have contributed to the enrichment. Seven of these objects are related to mountains or hills and are labeled as such. Trans-Hudson Orogen, Canada Hearne Province, Canada Fennoscandian (All Precambrian) Northern Territory, Australia South Australia (Mesoproterozoic) Ubendian Belt, SW Tanzania Transvaal Belt, South Africa IV NEOPROTEROZOIC-PALEOZOIC OROGENIC GOLD PROVINCES Andes (Eastern Cordillera) Appalachian Orogen, Eastern North America Pan-African Orogen. The Trans-Hudson Orogen is bounded to the. The most prominent is the Trans Hudson orogen, which extends along the west and north sides of the craton (e. North American plate to the Greenland plate. The origin and evolution of 1835 Ma volcanism in the Wekusko Lake area, Manitoba. Over the last 20-30 years, active and. , and Karl E. Active‐source seismic and magnetotelluric studies of the Trans‐Hudson Orogen to the southwest of Hudson Bay were carried out in central Canada through the LITHOPROBE program [e. Trans-Hudson Orogen. Preface --Overview --The Trans-Hudson Orogen: extent, subdivision, and problems / J. Geological Association of Canada; Special Paper 37, pages 353-369. , 1984, Crustal Early Proterozoic Trans-Hudson Orogen of graphitic pelites from the Wopmay orogen electrical conductivity in north-central Sas- North America. Timetoast's free timeline maker lets you create timelines online. 1765 Ma during the Trans-Hudson Orogen (Gagné et al. It gave rise to the Trans-Hudson orogen (THO), or Trans-Hudson Orogen Transect (THOT), (also referred to as the Trans-Hudsonian Suture Zone (THSZ) or Trans-Hudson suture) which is the largest Paleoproterozoic orogenic belt in the world. , 1998] techniques, finding indications of crust-mantle detachment and lateral variations within the Trans-Hudson lithosphere. In, Program with Abstracts, Joint Annual Meeting of the GAC-MAC-SEG-SGA, Ottawa, Canada. Volcanogenic massive sulphide deposits of the Paleoproterozoic Trans-Hudson Orogen and the Archean Abitibi Subprovince: Characteristics and metallogeny. The Paleoproterozoic Trans-Hudson Orogen (THO) and Mesoproterozoic Grenville Orogen extend for thousands of kilometers along-strike and hundreds of kilometers across-strike. Product Description Page. , Clowes, 2010]. 8 Ga Trans-Hudson Orogen. The New Quebec Orogen is coeval with the younger part of the Trans-Hudson Orogen. The results, combined with previous seismic imaging in the eastern North China craton, provide insight into the amalgamation of the Eastern and. View/ Open. 'the cratonic blocks of Laurentia were sutured along the 1. Seismic studies on the Trans-Hudson Orogen of western Canada Seismic studies on the Trans-Hudson Orogen of western Canada Ellis, R. 2 synonyms for Himalayas: Himalaya, Himalaya Mountains. THOT - LITHOPROBE Reports. The Trans-Hudson orogen is a major Early Proterozoic suture between the Archean Rae-Hearne and Superior cratons of the western Churchill Province. Geological Society of America Bulletin, September/October 2010 1687 been reported from the Uinta Mountain Group, and no detrital zircons had been analyzed from the Big Cotton wood Formation. Trans-Hudson Orogen and western Superior12, respectively (Fig. Looking for the definition of THOT? Find out what is the full meaning of THOT on Abbreviations. The New Quebec Orogen is coeval with the younger part of the Trans-Hudson Orogen. The western boundary of the Trans-North China orogen is located west of the boundary earlier identifi ed by surface investigation. THOT - Trans-Hudson Orogen Transect. , The Timing of Eclogite Facies Metamorphism and the Tectono-metamorphic Evolution of the Eastern Alps: PhD thesis, University of Cambridge, U. Discuss the relationship of orogen development to a Wilson Cycle. The Hudson Bay Arc including the Sutton Inliers in the south-west of the structure. Magnetic total field and Bouguer gravity maps are used to define the along-strike extension of geological domains of the orogen exposed on the Canadian Shield, and a two-dimensional density model is produced, which accounts for the observed variations of the. Both have been compared to the present-day Himalayan-Karakoram-Tibetan Orogen (HKTO). 257) does not precise if the bending occurs during or after the orogenesis; and if the orogen were initially straight or flexed even if it was rather admitted than an orogen be initially rectilinear (Marshak, 1988). 92-Ga Thluicho Lake Group (Bethune et al. Its north-south trend indicates that the contacts are part of the Trans-Hudson Orogen. Geological Society of America Bulletin, September/October 2010 1687 been reported from the Uinta Mountain Group, and no detrital zircons had been analyzed from the Big Cotton wood Formation. The Trans-Hudson orogen was named by Hoffman (1981) and defined as the Early Proterozoic orogen between the Archean Wyoming and Hearne provinces, on the west, and the Archean Superior province on the east (Hoffman, 1988, fig. In the northwest it comprises an ensialic component including variably reworked Archean crustal segments (Mudadtik. Geological Survey ; compiled by P. Brett's PhD thesis focuses on competing tectonic models of the Trans-Hudson Orogen. Paleoproterozoic Trans-Hudson Orogen (THO) and adjacent Precambrian Shield in Canada. It is a mosaic of several Archean terranes that were brought together during a series of Paleoproterozoic orogens culminating in the so-called Trans-Hudson Orogen (THO), which is thought to have been similar to the Himalayan orogen in scale and nature. and Stauffer, M. , Yukon, and all of Alberta except the far northeast corner. Geophysical anomaly data (McCafferty and others, 1998) are interpreted to indicate that the Trans-Hudson orogen truncates the Trans-Montana orogen. 2 synonyms for Himalayas: Himalaya, Himalaya Mountains. What are synonyms for Trans-Himalaya?. The term Trans-Hudson orogen refers to the rocks within the orogenic belt. The rocks of northern Hudson Bay include Archean domains, the Paleoproterozoic Trans-Hudson Orogen (THO), and lie atop one of the largest cratonic keels on Earth (Bastow et al. Contrasting Archean and Proterozoic lithosphere with. Rocks of the north-central Rae domain consist of 2. 65 Ga), and on the east by the Superior craton (Archean, more than 2. ;Paleomagnetic results from a total of 71 sites are presented from the Hanson Lake pluton (HP), the Sahli granite (SG) and the Jan Lake granite (JG) in the Hanson Lake block. The zonation of the Trans-Hudson belt is typical of collision zones: granitic rocks representing the eroded roots of a continental volcanic arc occur along the Churchill province margin, the medial zone comprises relics of oceanic…. Possible analogues in-clude Tennant Creek, Australia and the Otjikoto deposit, Namibia. 5b and 5c). The orogen may represent an ancient analogue to the Himalayan. This collection of 27 papers reviews over a decade of progress in understanding the main tectonic elements of the orogen and includes a wide range of original contributions. Subduction of oceanic lithosphere beneath the accreted La Ronge Hearne margin. Ore formation first occurred during Pan-African events in the Arabian–Nubian shield, within the Trans-Saharan orogen of western Africa and extending into Brazil’s Atlantic shield, within the Brasilia fold belt on the western side of the Sao Francisco craton, and within the Paterson orogen of northwestern Australia. The La Ronge Domain is a granite-greenstone belt in the Saskatchewan segment of the ca. Hudson Orogen Trans Superior Province Penokean Province Marshfield errane Mars Hill Terrane Grouse Creek Block ? Mojavia ? Elves Chasm Gneiss Medicine Hat Block Wyoming Province ulcan Zone Little Belt arc Makkovik Orogen Grouse Creek Block ? Selway Terrane ? Cheyenne Belt. For each dated rock sample, a record containing basic information on geological setting, rock description, sample location, analytical method, age, interpretation, and literature citation is given. Report of Third Transect Meeting (Regina, SK) 38. The Trans-Hudson orogen of North America is a circa 1,800 million yearold, middle Palaeoproterozoic continental collisional belt. The Trans-Hudsonian orogeny records the closure and suturing of the a. 96 Ga for Thelon orogen. Proterozoic Tectonics • Coronation Geosyncline Trans-Hudson Orogeny Modern Island Arcs. However, gravity and magnetic data indicate that the orogen is much more extensive, following an 2800-km-long path from South Dakota, USA. 80 Ga, but Rb-Sr isochron ages of these rocks are commonly 1. The MHB was involved in a complex collision between the Archean Hearne and Wyoming provinces during the formation of the Great Falls Tectonic Zone (GFTZ), Trans Hudson Orogen (THO) and Vulcan Zone during the amalgamation of Laurentia. , 1984, Crustal Early Proterozoic Trans-Hudson Orogen of graphitic pelites from the Wopmay orogen electrical conductivity in north-central Sas- North America. Yemen southern Arabia. Trans-Hudson orogen (Hoffman 1988, 1989). The Trans-Hudsonian orogeny records the closure and suturing of the a. The La Ronge volcanic arc was accreted to the Archean Hearne craton from ca. Preface --Overview --The Trans-Hudson Orogen: extent, subdivision, and problems / J. Trans-Hudson Orogen (THO) [4] The Trans-Hudson Orogen (THO) [Hoffman, 1988; Lewry and Collerson, 1990] is a Himalayan-scale collisional orogenic belt that extends from the south central part of the North American continent to its northeastern edge , where it is truncated by the younger Mesoproterozoic to Neoproterozoic Grenville Orogen. Wopmay Orogen. It thus represents a new style of gold mineralizaion in the western Churchill Province that warrants further study. The pluton is largely made up of modally and geochemically diverse syenitic rocks derived from postorogenic magma(s) of shoshonitic affinity. and Ansdell, K. complete orogen, whereas in others, it may represent only part of an orogen that was originally much more extensive. As part of Lithoprobe's Trans-Hudson orogen transect investigations, magnetotelluric (MT) data were acquired along two profiles in the western part of the o1'ogen in 1992 and 1994 (Fig. Photo by Marc St-Onge (GSC). Proterozoic Tectonics • Coronation Geosyncline Trans-Hudson Orogeny Modern Island Arcs. 3), but the ancient rocks of the craton are almost completely covered by younger rocks in B. Burianyk, M. Geological Association of Canada; Special Paper 37, pages 353-369. Titanite is a common constituent of the post-peak metamorphic assemblages of Trans-Hudson lithotectonic units and accompanied disseminated sediment-hosted Cu sulfide. The Trans-Hudson orogen is not. This poster presents part of an ongoing study within the GEM-2 Hudson-Ungava Project: "Core Zone and Bounding Orogens". Over the last 20–30 years, active and. The Nesson anticline also follows old basement lithologic boundaries. Magnetotelluric studies of the Trans-Hudson orogen over the last two decades, prompted by the discovery of a significant conductivity anomaly beneath the North American Central Plains (NACP), from over 300 sites yield an extensive database for interrogation and enable three-dimensional information to be obtained about the geometry of the orogen from southern North Dakota to northern Saskatchewan. 75 Ga as well as the 1. , and Kanasewich, E. …province to form the bowlike Trans-Hudson orogenic belt, the crest of which underlies Hudson Bay. As potassic intrusive rocks are absent immediately north of the Trans-Hudson orogen, north-directed subduction related to Churchill/Superior docking cannot have contributed to the enrichment. Both have been compared to the present-day Himalayan-Karakoram-Tibetan Orogen (HKTO). Tanzanian Craton east Africa. Day 5, Clowes): The Mesoproterozoic Grenville orogen ‐‐ Accretion and continental collision on SE Laurentia. The two oldest parts of the Canadian Shield in western Canada are the Slave and Superior Cratons, and both include some of Earth's oldest rocks. Gowganda orogen 18. quartz sandstones, arkoses, conglomerates, basalts. Contrasting Archean and Proterozoic lithosphere with. Nunavut, as a result of deformation and metamorphism during the 1. It gave rise to the Trans-Hudson orogen (THO), or Trans-Hudson Orogen Transect (THOT), (also referred to as the Trans-Hudsonian Suture Zone (THSZ) or Trans-Hudson suture) which is the largest Paleoproterozoic orogenic belt in the world. This poster presents part of an ongoing study within the GEM-2 Hudson-Ungava Project: “Core Zone and Bounding Orogens”. Saskatchewan) 34. Figure 2 S1 283/43 N F2 AP 255/78 NW FH 26/075 W E 100 km Superior craton. However, gravity and magnetic data indicate that the orogen is much more extensive, following an 2800-km-long path from South Dakota, USA. Dakotan Orogen relative to the broad Trans Hudson Orogen is also unclear. As part of Lithoprobe's Trans-Hudson orogen transect investigations, magnetotelluric (MT) data were acquired along two profiles in the western part of the o1'ogen in 1992 and 1994 (Fig. Among the orogenic belts, two stand out due to their significant spatial extent. 83 Ga for the Trans-Hudson orogen. Transcontinental Arch from Trans-Hudson Orogen (1. In our summary, we have relied heavily on detailed studies by Karlstrom and Humphreys (1998), Karlstrom et al. 2006) is the oldest of three post-Taltsonsedimentarysuccessionsinthisregion (Ashton et al. A summary and comparison of geophysical data and models for the Trans-Hudson Orogen in northern Manitoba and Saskatchewan are presented. bounding Thelon-Taltson and Trans-Hudson oro-gens (Hoffman 1988). Trans-Hudson Orogen Flin Flon - Snow Lake - Lynn Lake Phanerozoic Quaternary Community Liaison. Scromeda and P. The North American Central Plains (NACP) anomaly in enhanced electric conductivity and its relationship with the Paleoproterozoic Trans-Hudson orogen (THO) has been studied under the auspices of Lithoprobe for over a decade. Thot synonyms. Discuss the relationship of orogen development to a Wilson Cycle. 91 Ga start for Wopmay orogen accretion. Preface --Overview --The Trans-Hudson Orogen: extent, subdivision, and problems / J. The presence of this, apparently uncharacteristic, mineralization within the Proterozoic orogen was initially a puzzle. The North American Craton, also called Laurentia. It is the principal element of a network of such belts that formed by Proterozoic crustal accretion and the collision of pre-existing Archean continents. This compilation represents published geochronological information on rocks from Trans-Hudson Orogen in Ungava Peninsula, northern Quebec. Abstract The Paleoproterozoic Torngat Orogen of northern Labrador, a segment of the Trans‐Hudson Orogen, records the consequences of the convergence and collision of the Rae and Nain cratons and the intervening Burwell Domain. Ahern School of Geology and Geophysics, University of. Corrigan 1, T G. 1 Ga and that the Trans-Hudson Orogen is an. tism and arc collage are described in the Trans-Hudson orogen of Canada (e. …province to form the bowlike Trans-Hudson orogenic belt, the crest of which underlies Hudson Bay. The magnetotelluric impedance tensors and geomagnetic induction vectors reveal four distinct geoelectric zones along this segment of the Lithoprobe transect. Journal of Structural Geology, v. Paleoproterozoic crustal evolution and tectonic processes: Insights from the Trans‐Hudson orogen, central Canada. Wopmay Orogen northwest Canada. The pluton is largely made up of modally and geochemically diverse syenitic rocks derived from postorogenic magma(s) of shoshonitic affinity. Williams and Hatcher, 1982), and is conceptually equivalent to the usage of Trans-Hudson 2 orogen to describe another Early Proterozoic deformed belt. The Trans-Hudson Orogen (THO), a Paleoproterozoic collisional zone that welds the Superior, and the Hearne-Rae-Wyoming (HRW) cratons to form the core of Laurentia, represents a significant suture within the Nuna supercontinent. Hall Peninsula on southeastern Baffin Island, Nunavut, occurs in the northeastern segment of the Paleoproterozoic collis- ional zone of the Trans-Hudson Orogen. Trans-Himalaya synonyms, Trans-Himalaya pronunciation, Trans-Himalaya translation, English dictionary definition of Trans-Himalaya. Chakungal 3 Corrigan, D. 80 Ga, including accretionary magmatism in northwestern Laurentia and Siberia (2. The Trans-Hudson orogeny or Trans-Hudsonian orogeny was the major mountain building event (orogeny) that formed the Precambrian Canadian Shield, the North American Craton (also called Laurentia), and the forging of the initial North American continent. Superior province to the Hearne and Wyoming province. Subduction of oceanic lithosphere beneath the accreted La Ronge Hearne margin. Our general goals were to sample all the way across the orogen, being sure that we sampled each of the terranes within it. Source: Whitmeyer, Steven J. Ansdell, K. The Trans-Hudson Orogen contains juvenile Paleo-proterozoic terranes caught within these collisions as well as the reworked Archean margins of the Superior, Hearne, and Wyoming provinces, which bound the THO to the east, northwest, and south-west respectively. What are synonyms for Trans-jordan?. There are 11 intrusives or uplifts marked on the map. 8 Ga Penokean orogen (WI & MI): insight into post-Penokean tectonism • Kristen Kopczynski, 2001. 1 Ga and that the Trans-Hudson Orogen is an. granulite- and amphibolite-facies metamorphism in a convergent-plate-margin setting: synthesis of the quebec-baffin segment of the trans-hudson orogen* marc r. Title: Precambrian basement map of the trans-Hudson orogen and adjacent terranes, northern Great Plains, U. oproterozoic Trans-Hudson Orogen (THO) and Mesoproterozoic Grenville Orogen extend for thousands of kilometers along-strike and hundreds of kilo-meters across-strike. The Wawa Subprovince extends for approximately 850 km from the Kapuskasing Structural Zone in northeastern Ontario to west-southwest into the Minnesota River Valley area in North Dakota, where the Subprovince truncated by the Proterozoic Trans-Hudson Orogen. It gave rise to the Trans-Hudson orogen (THO), or Trans-Hudson Orogen Transect (THOT), (also referred to as the Trans-Hudsonian Suture Zone (THSZ) or Trans-Hudson suture) which is the largest Paleoproterozoic orogenic belt in the world.