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- W3136156149 abstract "Abstract New 3D multi‐azimuthal receiver function analysis identified four regional seismic discontinuities dipping at 7–13° within the mantle of the Superior craton of North America; most are discordant to known major upper crustal structures. Widely observed crustal‐scale structures with near‐vertical axial planes striking east‐west indicate that the most recent and dominant phase of folding and horizontal shortening strain occurred during the Kenoran (D2) crustal deformation concurrent with Au‐mineralization and peak metamorphism at 2.72–2.66 Ga. Two mantle discontinuities strike 065° and 249°, dipping to the southeast and northwest, respectively. These strikes roughly parallel the northern margin of the Superior craton and some intra‐cratonic features such as the axis of the Quetico Basin. Two discontinuities strike 355° and 187°, dipping to the east and west, respectively, and parallel to the western margin of the craton. Our new observations reveal neither moderately dipping, east‐west striking discontinuities nor coherent eclogitic layers characteristic of modern plate tectonic subduction zones. Prominent east‐ and west‐dipping mantle structures relate best to a Paleoproterozoic (Trans‐Hudson) deformation, which is rarely observed in the crust. A new analysis of mantle xenoliths and xenocrysts indicates that carbonatitic metasomatism predominates above some discontinuities where strongly localized conductivity occurs whereas kimberlitic metasomatism predominates below the discontinuities in the broadly conductive mantle." @default.
- W3136156149 created "2021-03-29" @default.
- W3136156149 creator A5013016692 @default.
- W3136156149 creator A5019802502 @default.
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- W3136156149 creator A5042899725 @default.
- W3136156149 creator A5056545175 @default.
- W3136156149 creator A5084507775 @default.
- W3136156149 date "2021-04-01" @default.
- W3136156149 modified "2023-09-26" @default.
- W3136156149 title "Multidisciplinary Modeling of Mantle Lithosphere Structure Within the Superior Craton, North America" @default.
- W3136156149 cites W1607120297 @default.
- W3136156149 cites W1739136493 @default.
- W3136156149 cites W1758925611 @default.
- W3136156149 cites W1897624583 @default.
- W3136156149 cites W1968144866 @default.
- W3136156149 cites W1968243264 @default.
- W3136156149 cites W1970038120 @default.
- W3136156149 cites W1970798427 @default.
- W3136156149 cites W1972044133 @default.
- W3136156149 cites W1973912017 @default.
- W3136156149 cites W1980729996 @default.
- W3136156149 cites W1982845771 @default.
- W3136156149 cites W1984518286 @default.
- W3136156149 cites W1987046510 @default.
- W3136156149 cites W1988623878 @default.
- W3136156149 cites W1989334687 @default.
- W3136156149 cites W1989792766 @default.
- W3136156149 cites W1990051898 @default.
- W3136156149 cites W1994101398 @default.
- W3136156149 cites W2000017053 @default.
- W3136156149 cites W2001799257 @default.
- W3136156149 cites W2002438874 @default.
- W3136156149 cites W2004280748 @default.
- W3136156149 cites W2005548034 @default.
- W3136156149 cites W2006561375 @default.
- W3136156149 cites W2010432538 @default.
- W3136156149 cites W2010889080 @default.
- W3136156149 cites W2018890533 @default.
- W3136156149 cites W2019645618 @default.
- W3136156149 cites W2020411041 @default.
- W3136156149 cites W2020670912 @default.
- W3136156149 cites W2022251588 @default.
- W3136156149 cites W2023551564 @default.
- W3136156149 cites W2023965747 @default.
- W3136156149 cites W2024791415 @default.
- W3136156149 cites W2026394602 @default.
- W3136156149 cites W2032667153 @default.
- W3136156149 cites W2035598920 @default.
- W3136156149 cites W2035869936 @default.
- W3136156149 cites W2057187328 @default.
- W3136156149 cites W2057731022 @default.
- W3136156149 cites W2063670250 @default.
- W3136156149 cites W2067498280 @default.
- W3136156149 cites W2069558615 @default.
- W3136156149 cites W2072875909 @default.
- W3136156149 cites W2077008955 @default.
- W3136156149 cites W2081421081 @default.
- W3136156149 cites W2085275314 @default.
- W3136156149 cites W2089868979 @default.
- W3136156149 cites W2092260847 @default.
- W3136156149 cites W2092876585 @default.
- W3136156149 cites W2104085112 @default.
- W3136156149 cites W2108547825 @default.
- W3136156149 cites W2121887611 @default.
- W3136156149 cites W2122746803 @default.
- W3136156149 cites W2124736520 @default.
- W3136156149 cites W2128155858 @default.
- W3136156149 cites W2132509829 @default.
- W3136156149 cites W2133956049 @default.
- W3136156149 cites W2138013731 @default.
- W3136156149 cites W2139872741 @default.
- W3136156149 cites W2140203194 @default.
- W3136156149 cites W2145819791 @default.
- W3136156149 cites W2148482384 @default.
- W3136156149 cites W2157796583 @default.
- W3136156149 cites W2158905332 @default.
- W3136156149 cites W2161544177 @default.
- W3136156149 cites W2164207654 @default.
- W3136156149 cites W2312285028 @default.
- W3136156149 cites W2332117620 @default.
- W3136156149 cites W2334044110 @default.
- W3136156149 cites W2491966123 @default.
- W3136156149 cites W2508645099 @default.
- W3136156149 cites W2560490727 @default.
- W3136156149 cites W2566735869 @default.
- W3136156149 cites W2592672417 @default.
- W3136156149 cites W2756715677 @default.
- W3136156149 cites W2789748907 @default.
- W3136156149 cites W2789955055 @default.
- W3136156149 cites W2792559929 @default.
- W3136156149 cites W2800661018 @default.
- W3136156149 cites W2803848386 @default.
- W3136156149 cites W2810907062 @default.
- W3136156149 cites W2883938199 @default.
- W3136156149 cites W2888919239 @default.
- W3136156149 cites W2898176560 @default.
- W3136156149 cites W2918088814 @default.
- W3136156149 cites W2963915532 @default.