Výsledky vyhledávání

The ~1.1 Ga St. Ignace Island complex, Northern Ontario, Canada: Evidence for magma mixing and crustal melting in the generation of Midcontinent Rift-related bimodal magmas and implications for regional metallogeny

Autor: Pete Hollings, Jacob Hanley, Mark Smyk, Larry Heaman, Brian Cousens, Zoltán Zajacz

Publikováno v: Journal of Petrology.

The St. Ignace Island complex in Northern Ontario is a package of dominantly felsic rocks emplaced within the upper portions of the Osler Volcanic rocks of the ~1.1 Ga Midcontinent Rift System. The Osler volcanic rocks are predominantly tholeiitic ba

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::50521d6134cdad7fa39d093029a9088e
https://doi.org/10.1093/petrology/egad032

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Geology of the Mesoproterozoic Pillar Lake Volcanics and Inspiration Sill, Armstrong, Ontario: evidence of early Midcontinent Rift magmatism in the northwestern Nipigon Embayment

Autor: Wouter Bleeker, Robert Cundari, Michael R.M. Easton, Mark Smyk, Pete Hollings, Michael A. Hamilton

Publikováno v: Canadian Journal of Earth Sciences. 58:1116-1131

The Midcontinent Rift System of North America is a ∼1.1 Ga large igneous province comprising mainly flood basalts and intrusive rocks. We present new data for the Pillar Lake Volcanics and Inspiration Sill from the northern edge of the Midcontinent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::13e014d78a5f4cf4fd171b66f580a646
https://doi.org/10.1139/cjes-2021-0012

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The radiogenic isotope characteristics of dikes and sills associated with the Mesoproterozoic Midcontinent Rift near Thunder Bay, Ontario, Canada

Autor: Brian Cousens, Mark Smyk, Pete Hollings

Publikováno v: Precambrian Research. :269-279

New radiogenic isotope data are presented for intrusive rocks of the Mesoproterozoic Midcontinent Rift from the north shore of Lake Superior. These mafic rocks are amongst the older portions of the rift sequence and offer insights into the early deve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7894418219048751bf7b9b99da8bee07
https://doi.org/10.1016/j.precamres.2011.11.006

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The geochemistry, geochronology and paleomagnetism of dikes and sills associated with the Mesoproterozoic Midcontinent Rift near Thunder Bay, Ontario, Canada

Autor: Pete Hollings, Henry C. Halls, Mark Smyk, Larry M. Heaman

Publikováno v: Precambrian Research. 183:553-571

The Midcontinent Rift (MCR) of North America comprises a series of basaltic sheets, flows and intrusive rocks emplaced in the Lake Superior region during the Mesoproterozoic. The mafic rocks preserved on the northern flank of Lake Superior represent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7bc8227adfb915821be09b78b05569fa
https://doi.org/10.1016/j.precamres.2010.01.012

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Further refinement to the timing of Mesoproterozoic magmatism, Lake Nipigon region, Ontario

Autor: R.M. Easton, Thomas Robert Hart, Carole Anne MacDonald, Mark Smyk, Pete Hollings, Larry M. Heaman

Publikováno v: Canadian Journal of Earth Sciences. 44:1055-1086

The Midcontinent Rift in the Lake Superior region of North America is one of the best preserved examples of an aborted Precambrian intercontinental rift, one that hosts a diverse suite of rock types in addition to the well-studied and voluminous rift

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6c02acd408a5ae27404f7e2b1796b11
https://doi.org/10.1139/e06-117

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A synopsis of mineral deposits in the Archean and Proterozoic rocks of the Lake Nipigon Region, Thunder Bay District, Ontario

Autor: James M. Franklin, Mark Smyk

Publikováno v: Canadian Journal of Earth Sciences. 44:1041-1053

A variety of metallic and non-metallic mineral deposit types occur within Archean and Proterozoic rocks in the area encompassing the Lake Nipigon Region Geoscience Initiative. Archean deposit types include Algoma-type banded iron formation-hosted iro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::360461eca2e0b28ff8a9a6b08658f971
https://doi.org/10.1139/e07-013

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Sulphide remobilization in Archean volcano-sedimentary rocks and its significance in Proterozoic silver vein genesis, Cobalt, Ontario

Autor: David H. Watkinson, Mark Smyk

Publikováno v: Canadian Journal of Earth Sciences. 27:1170-1181

The Archean volcano-sedimentary succession at Cobalt, Ontario, consists mainly of submarine andesitic flows and turbiditic interflow sedimentary rocks. Steeply dipping faults and large-scale, tight to isoclinar folds have developed in these basement

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e041b352e1d6c48c09fca1b63273385a
https://doi.org/10.1139/e90-124

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