Lithogeochemistry of volcano-plutonic assemblages of the southern Hanson Lake Block and southeastern Glennie Domain, Trans-Hudson Orogen: evidence for a single island arc complex

Maxeiner, Ralf O.; Sibbald, Tom I.I.; Slimmon, William L.; Heaman, Larry M.; Watters, Brian R.

doi:10.1139/cjes-36-2-209

Cited by 2 publications

(3 citation statements)

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“…The lithotectonic evolution of Flin Flon -Glennie complex is generally regarded as having involved five main development stages Stern et al 1999 (Bleeker 1990;Ellis & Beaumont 1999;Ashton et al 2005). In general, the pre-accretionary period records an evolution from primitive arc tholeiites to evolved THE PALAEOPROTEROZOIC TRANS-HUDSON OROGEN: A PROTOTYPE OF MODERN calc-alkaline arc rocks (Maxeiner et al 1999;Bailes & Galley 1999). Although the arcs are mostly juvenile, Nd isotopic data suggest variable input from Archaean crust, perhaps recycled in sediments or as rifted crustal fragments locally incorporated in the early arc assemblages .…”

Section: Flin Flon -Glennie Complexmentioning

confidence: 99%

The Palaeoproterozoic Trans-Hudson Orogen: a prototype of modern accretionary processes

et al. 2009

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The Trans-Hudson Orogen (THO) of North America is one of the earliest orogens in Earth's history that evolved through a complete Wilson Cycle. It represents c. 150 Ma of opening of the Manikewan Ocean, from c. 2.07-1.92 Ga, followed by its demise in the interval 1.92-1.80 Ga, during the final phase of growth of the Supercontinent Columbia (Nuna). It is characterized by three lithotectonic divisions: (i) Churchill margin (or peri-Churchill); (ii) Reindeer Zone; and (iii) Superior margin (or peri-Superior). The peri-Churchill realm records progressive outward continental growth by accretion of Archaean to Palaeoproterozoic micro-continents (Hearne, Meta Incognita/Core Zone, Sugluk) and eventually arc terranes (La Ronge-Lynn Lake) to the Slave-Rae nuclei, with attendant development of orogenies and basin inversions related to the specific accretion events (1.92-1.89 Ga Snowbird; 1.88-1.865 Ga Foxe; 1.87-1.865 Ga Reindeer orogenies). The Reindeer Zone is characterized by primitive to evolved oceanic arcs, back-arc basins, oceanic crust and ocean plateaus that formed during closure of the Manikewan Ocean, and accretion of a micro-continent (Sask Craton) and smaller Archaean crustal fragments. The terminal phase of the Trans-Hudson orogeny represents collision between the Superior craton, the Reindeer Zone and the composite western Churchill Province during the interval 1.83-1.80 Ga.

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Section: Flin Flon -Glennie Complexmentioning

confidence: 99%

The Palaeoproterozoic Trans-Hudson Orogen: a prototype of modern accretionary processes

et al. 2009

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“…The northern volcanic belt consists of the Lynn Lake and La Ronge belts, two island arcs which were active near the Rae‐Hearne craton. Following the geological and geochemical analysis of Maxeiner et al [1999], we lump together the volcanic and plutonic rocks of the Glennie domain, the Flin Flon and Snow Lake Belts and their extensions beneath the Paleozoic sedimentary cover into a single southern volcanic belt. This belt was formed at large distance from the northern volcanic belt.…”

Section: Trans‐hudson Orogenmentioning

confidence: 99%

“…These two deep boreholes are located in the southern extent of the Hanson Lake block in the Flin Flon belt [ Leclair et al , 1997; Maxeiner et al , 1999] where Archean basement windows are identified [ Ashton et al , 1999]. They penetrate sequences of schists interlayered with gabbros and basalts.…”

Section: New Heat Flow Determinationsmentioning

confidence: 99%

Surface heat flow, crustal temperatures and mantle heat flow in the Proterozoic Trans‐Hudson Orogen, Canadian Shield

et al. 2002

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The Paleo‐Proterozoic (1.8 Ga) Trans‐Hudson Orogen (THO), of intermediate age between the Superior (2.7 Ga) and Grenville (1.0 Ga) provinces, is located near the center of the Canadian Shield. We report on new measurements of heat flow and radiogenic heat production in 30 boreholes at 17 locations in this province. With these data, reliable values of heat flow and heat production are available at 45 sites in the THO. The mean and standard deviation of heat flow values are 42 ± 9 mW m−2. In this province, distinctive geological domains are associated with specific heat flow distributions. The heat flow pattern follows the surface geology with a central area of low values over an ancient back arc basin (Kisseynew) and an ancient island arc (Lynn Lake Belt) made of depleted juvenile rocks. Higher heat flow values found in peripheral belts are associated with recycled Archean crust. Within the Canadian Shield, there is no significant variation in heat flow as a function of age between provinces spanning about 2 Gyr. There is no geographic trend in heat flow across the Canadian Shield from the THO to the Labrador Sea. Low heat flow areas where the crustal structure is well‐known are used to determine an upper bound of 16 mW m−2 for the mantle heat flow. Present and paleogeotherms are calculated for a high heat flow area in the Thompson metasedimentary belt. The condition that melting temperatures were not reached in Proterozoic times yields a lower bound of 11–12 mW m−2 for the mantle heat flow.

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Lithogeochemistry of volcano-plutonic assemblages of the southern Hanson Lake Block and southeastern Glennie Domain, Trans-Hudson Orogen: evidence for a single island arc complex

Cited by 2 publications

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The Palaeoproterozoic Trans-Hudson Orogen: a prototype of modern accretionary processes

The Palaeoproterozoic Trans-Hudson Orogen: a prototype of modern accretionary processes

Surface heat flow, crustal temperatures and mantle heat flow in the Proterozoic Trans‐Hudson Orogen, Canadian Shield

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