Nature and timing of Franklin igneous events, Canada: Implications for a Late Proterozoic mantle plume and the break-up of Laurentia

Alt, 1988, Terrestrial maria: the origins of large basalt plateaus, hotspot tracks and spreading ridges, J. Geol., 96, 647, 10.1086/629268 Rampino, 1988, Flood basalt volcanism during the past 250 million years, Science, 241, 663, 10.1126/science.241.4866.663 White, 1989, Magmatism at rift zones: The generation of volcanic continental margins and flood basalts, J. Geophys. Res., 94, 7685, 10.1029/JB094iB06p07685 Campbell, 1990, Implications of mantle plume structure for the evolution of flood basalts, Earth Planet. Sci. Lett., 99, 79, 10.1016/0012-821X(90)90072-6 Hooper, 1990, The timing of crustal extension and the eruption of continental flood basalts, Nature, 345, 246, 10.1038/345246a0 Duncan, 1991, Hot spots, mantle plumes, flood basalts and true polar wander, Rev. Geophys., 29, 31, 10.1029/90RG02372 Peate, 1990, Mantle plumes and flood-basalt stratigraphy in the Paraná, South America, Geology, 18, 1223, 10.1130/0091-7613(1990)018<1223:MPAFBS>2.3.CO;2 O'Connor, 1990, Evolution of the Walvis Ridge-Rio Grande Rise hot spot system: implications for African and South American Plate motions over plumes, J. Geophys. Res., 95, 17475, 10.1029/JB095iB11p17475 Zehnder, 1990, Deep seismic and geochemical constraints on the nature of rift-induced magmatism during the breakup of the North Atlantic, Tectonophysics, 173, 545, 10.1016/0040-1951(90)90245-4 Rice, 1990, The role of volcanism in K/T extinctions, 39 Irvine, 1989, A global convection framework: concepts of symmetry, stratification, and system in the Earth's dynamic structure, Econ. Geol., 84, 2059, 10.2113/gsecongeo.84.8.2059 Heaman, 1988, A precise UPb zircon age for a Hearst dyke, Geol. Assoc. Can./Mineral. Assoc. Can., Programs Abstr., 13, A53 Corfu, 1986, A UPb age for mineralized Nipissing diabase, Gowganda, Ontario, Can. J. Earth Sci., 23, 107, 10.1139/e86-011 LeCheminant, 1989, Mackenzie igneous events, Canada: Middle Proterozoic hotspot magmatism associated with ocean opening, Earth Planet. Sci. Lett., 96, 38, 10.1016/0012-821X(89)90122-2 Davis, 1990, Time resolution of geologic events on the Keweenaw Peninsula and implications for development of the Midcontinent Rift System, Earth Planet. Sci. Lett., 97, 54, 10.1016/0012-821X(90)90098-I Heaman, 1991, Timing and origin of Midcontinent Rift alkaline magmatism, North America: Evidence from the Coldwell Complex, Contrib. Mineral. Petrol. Fahrig, 1971, Paleomagnetism of the Franklin diabases, Can. J. Earth Sci., 8, 455, 10.1139/e71-047 Dostal, 1986, Petrogenesis of the Natkusiak continental basalts, Victoria Island, Northwest Territories, Canada, Can. J. Earth Sci., 23, 622, 10.1139/e86-064 Heaman, 1989, UPb baddeleyite ages for the Scourie dyke swarm, Scotland: evidence for two distinct intrusion events, Nature, 340, 705, 10.1038/340705a0 Fahrig, 1987, The tectonic settings of continental mafic dyke swarms: failed arm and early passive margin, 331 Fahrig, 1986, Diabase dyke swarms of the Canadian Shield, Geol. Surv. Can. Map, 1627A Stacey, 1971, Interpretation of the gravity anomaly at Darnley Bay, N.W.T., Can. J. Earth Sci., 8, 1037, 10.1139/e71-090 Robertson, 1972, The petrology and paleomagnetism of the Coronation sills, Can. J. Earth Sci., 9, 123, 10.1139/e72-011 Hutchinson, 1990, Keweenaw hot spot: Geophysical evidence for a 1.1 Ga mantle plume beneath the Midcontinent Rift System, J. Geophys. Res., 87, 10869, 10.1029/JB095iB07p10869 Park, 1974, Paleomagnetism of miscellaneous Franklin and Mackenzie diabases of the Canadian Shield and their adjacent country rocks, Can. J. Earth Sci., 11, 1012, 10.1139/e74-098 Palmer, 1975, Paleomagnetism and KAr dating of some Franklin lavas and diabases, Victoria Island, Can. J. Earth Sci., 12, 1439, 10.1139/e75-130 Palmer, 1983, Paleomagnetism of Late Proterozoic rocks, Victoria Island, Northwest Territories, Can. J. Earth Sci., 20, 1456, 10.1139/e83-131 Fahrig, 1973, Additional paleomagnetic data on the Baffin diabase dykes and a revised Franklin pole, Can. J. Earth Sci., 10, 576, 10.1139/e73-057 Park, 1981, Paleomagnetism of the Late Proterozoic sills in the Tsezotene Formation, Mackenzie Mountains, Northwest Territories, Canada, Can. J. Earth Sci., 18, 1572, 10.1139/e81-145 Young, 1981, The Amundsen Embayment, Northwest Territories; relevance to the upper Proterozoic evolution of North America, 203 Rainbird, 1991, Stratigraphy, sedimentology and tectonic setting of the upper Shaler Group, Victoria Island, N.W.T. Campbell, 1981, Stratigraphy and tectono-depositional relationships of the Proterozoic rocks of the Hadley Bay area, northern Victoria Island, District of Franklin, Geol. Surv. Can. Pap. 81-1A Thorsteinsson, 1962, Banks, Victoria and Stefansson Islands, Arctic Archipelago, Geol. Surv. Can. Mem., 330 Baragar, 1976, The Natkusiak basalts, Victoria Island, District of Franklin, Geol. Surv. Can. Pap. 82-1C, 347 Jefferson, 1985, Geology and copper occurrences of the Natkusiak basalts, Victoria Island, District of Franklin, 203 Fowler, 1986, Zirconolite from the Glen Dessarry syenite: a comparison with other Scottish zirconolites, Mineral. Mag., 50, 326, 10.1180/minmag.1986.050.356.21 Davis, 1982, Optimum linear regression and error estimation applied to UPb data, Can. J. Earth Sci., 19, 2141, 10.1139/e82-188 Jaffey, 1971, Precision measurement of half-lives and specific activities of235U and238U, Phys. Rev., 4, 1889 Steiger, 1977, Subcommission on geochronology: Convention on the use of decay constants in geo- and cosmochronology, Earth Planet. Sci. Lett., 36, 359, 10.1016/0012-821X(77)90060-7 Young, 1979, Middle and Late Proterozoic evolution of the northern Canadian Cordillera and Shield, Geology, 7, 125, 10.1130/0091-7613(1979)7<125:MALPEO>2.0.CO;2 Jefferson, 1989, Late Proterozoic stratigraphy, UPb zircon ages and rift tectonics, Mackenzie Mountains, northwestern Canada, Can. J. Earth Sci., 26, 1784, 10.1139/e89-151 Kamo, 1989, Birthdate for the lapetus Ocean? A precise UPb zircon and baddeleyite age for the Long Range dikes, southeast Labrador, Geology, 17, 602, 10.1130/0091-7613(1989)017<0602:BFTLOA>2.3.CO;2 Dawes, 1973, K/Ar whole rock ages of dolerites from the Thule District, Western North Greenland, Geol. Surv. Greenland Rep. 55, 61 McDougall, 1965, Isotopic age determinations on granitic rocks from Tasmania, J. Geol. Soc. Aust., 12, 275, 10.1080/00167616508728598 Ilyin, 1990, Proterozoic supercontinent, its latest Precambrian rifting, breakup and dispersal into smaller continents, and subsidence of their margins: evidence from Asia, Geology, 18, 1231, 10.1130/0091-7613(1990)018<1231:PSILPR>2.3.CO;2 Bond, 1984, Break-up of a supercontinent between 625 and 555 Ma: New evidence and implications for continental histories, Earth Planet. Sci. Lett., 70, 325, 10.1016/0012-821X(84)90017-7 Lindsay, 1987, Timing the break-up of a late Proterozoic supercontinent: Evidence from Australian intracratonic basins, Geology, 15, 1061, 10.1130/0091-7613(1987)15<1061:TTBOAP>2.0.CO;2 Cannon, 1989, The North American Midcontinent Rift beneath Lake Superior from GLIMPCE seismic reflection profiling, Tectonics, 8, 305, 10.1029/TC008i002p00305 Nicholson, 1990, Midcontinent Rift volcanism in the Lake Superior region: Sr, Nd, and Pb isotopic evidence for a mantle plume origin, J. Geophys. Res., 95, 10851, 10.1029/JB095iB07p10851 Cox, 1989, The role of mantle plumes in the development of continental drainage patterns, Nature, 342, 873, 10.1038/342873a0 Kerans, 1988, Proterozoic paleokarst profile, Dismal Lakes Group, N.W.T., Canada, 167 Crough, 1983, Hotspot swells, Annu. Rev. Earth Planet. Sci., 11, 165, 10.1146/annurev.ea.11.050183.001121 Richards, 1989, Flood basalts and hotspot tracks: Plume heads and tails, Science, 246, 103, 10.1126/science.246.4926.103 Hill, 1991, Starting plumes and continental break-up, Earth Planet. Sci. Lett., 104, 398, 10.1016/0012-821X(91)90218-7 Moores, 1991, Southwest U.S.-East Antarctic (SWEAT): A hypothesis, Geology, 19, 425, 10.1130/0091-7613(1991)019<0425:SUSEAS>2.3.CO;2