Plates or plumes in the origin of kimberlites: U/Pb perovskite and Sr-Nd-Hf-Os-C-O isotope constraints from the Superior craton (Canada)
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DOI: 10.1016/j.chemgeo.2016.08.019
Abstract: Abstract Neoproterozoic kimberlite, ultramafic lamprophyre, and carbonatite magmatic activity was widespread across the Canadian-Greenland Shield. Models to explain the preponderance of this deeply-derived CO 2 -rich magmatism between 680–540 Ma range from impingement of multiple mantle… read more here.
Keywords: superior craton; isotope; canada; kimberlite magmas ... See more keywords
Neoarchean and Paleoproterozoic Events in the Minnesota River Valley Subprovince, with Implications for Southern Superior Craton Evolution and Correlation
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DOI: 10.1016/j.precamres.2018.08.010
Abstract: Abstract The lithologic diversity and protracted geologic history of the Minnesota River Valley (MRV) gneiss terrane at the southern margin of the Archean Superior Province provide key perspectives on the growth and modification of this… read more here.
Keywords: medicine; minnesota river; superior craton; craton ... See more keywords
Evidence of magmatism and rifting in the southern superior craton from the Temagami geophysical anomaly
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DOI: 10.1016/j.precamres.2021.106310
Abstract: Abstract The Temagami Geophysical Anomaly (TGA) is situated in the Paleoproterozoic Huronian Supergroup near the southern margin of Archean Superior craton, along strike from the Temagami Greenstone Belt, 50 km northeast of world-class metal endowment in… read more here.
Keywords: superior craton; geophysical anomaly; temagami geophysical; intrusion ... See more keywords