.... The geochemistry and primary igneous textures of the Bong syenite, including its euhedral zircons, resemble those of lava flows near the base of the Baker Lake Group, and we recognize a mixed magma (i.e., Martell Syenite) continuum between intrusive Hudson granitoids and minette with extrusive equivalents...

... psammitic enclaves of the Woodburn Lake group within 1.83 Ga Hudson granite and Martell syenite that together comprise the Shultz Lake intrusive complex (SLIC). The depth and geometry of the intrusive complex are relatively unknown as the geological constraints are poor; the drilling is sparse...

...John A. Wolff Abstract The syenite-trachyte problem arises because liquids of this composition are perched on the thermal barrier between granitic and phonolitic minima in petrogeny’s residua system, SiO 2 –NaAlSiO 4 –KAlSiO 4 (quartz-nepheline-kalsilite, Q-Ne-Ks), and may be stated as: Why do...

... ; d’Alessio and Martel 2004 ; Blenkinsop 2008 ). These preexisting features can include earlier faults, fractures, or other geologic structures resulting from earlier deformation events; strong rheological differences between geologic units, either from compositional variations in a stratigraphic sequence...

... rocks (Martell syenite suite: Smith et al. 1980 ) and unconformably overlain by unmetamorphosed, 1.84–1.55 Ga subaerial sedimentary and volcanic rocks of the Dubawnt Supergroup ( Rainbird and Davis 2007 ; Rainbird et al. 2003 ). Late, post-tectonic intrusions include the 1.75 Ga bimodal Kivalliq suite...

... Galena 1418 (no error reported) Fuchs et al. (1986) ALT Various Lone Gull K–Ar (bulk) N/A 1648; 1563; 1358; 1073 (no errors) Scott et al. (2015) INT Granite Grid monzogranite (Hudson) U–Pb Zircon 1840±11 Scott et al. (2015) INT Syenite dyke, Kiggavik (Hudson–Martell) U–Pb...

...; SLIC, Shultz Lake Intrusive Complex (Hudson granite and Martell syenite); MHA, Marjorie Hills assemblage; and 5ml, Five Mile Lake volcanic rocks. ...

...A.V. Grebennikov; S.O. Maksimov Abstract ––New isotope-geochemical data on the volcanic complexes of the South Yakut and Martel volcanic depressions in southern Primorye are presented. Their formation in the early Eocene (54.3 Ma) and Late Cretaceous (83.5 Ma), respectively, is evidenced by U–Pb...

... (e.g., Sanborn-Barrie et al., 2001 ; Baldwin et al., 2007 ; Berman et al., 2007 ; Martel et al., 2008 ) within the Snowbird tectonic zone (STZ), which separates these rocks from the lower-grade Archean Hearne craton. In southeasternmost Northwest Territories (NWT) and northern Saskatchewan, high...

... Gull Granite of the Hudson Suite intruded this metagraywacke at 1830 Ma at the Kiggavik deposit. Below the Bong deposit a contemporaneous hypabyssal Martell syenite plug, also of the Hudson Suite and texturally resembling the basal minette (lamprophyre) flow of the Baker Lake basin, intruded the host...

... volcanic rocks (e.g., Peterson et al. 2002 ) that were deposited between ca. 1.84–1.78 Ga ( Rainbird et al. 2006 , Rainbird and Davis 2007 ) contemporaneous with intrusion of Hudson granitoids and Martel syenites ( Peterson et al. 2002 ). Rhyolites of the Wharton Group, or Whart Sequence ( Rainbird et al...

..., became active, and faulting was accompanied by emplacement of the Schultz Lake Intrusive Complex (SLIC). The SLIC comprises ∼1.84–1.82 Ga nonfoliated granitoid sills, syenites (Martell syenites), and lamprophyre dykes of the late syn-orogenic Trans-Hudsonian suite and ∼1.75 Ga rapakivi-style Nueltin...

... of the type section of the Horton Group in the Windsor Basin records erosion of the South Mountain Batholith ( Martel and Gibling 1996 ). The record of detrital zircon ( Murphy and Hamilton 2000 ), bulk geochemistry, and radiogenic isotopes ( Murphy 2000 ) shows that Horton Group sediments in the St. Marys...

... and syenitic rocks demonstrate that these rocks belong to an AMCG suite. Moreover, the ∼1327 Ma age comes from a syenite sample from that suite. As felsic rocks represent less than 5% of this pluton, the term mafic was used by Gobeil et al. to designate this suite instead of De La Blache Suite or De La Blache...

... ; Thompson et al. 2001 ; Wiesmaier et al. 2011 ). In contrast, the generation of trachytes is often attributed to the magmatic evolution of Si-rich alkaline basalts ( Coombs and Wilkinson 1969 ; Davidson and Wilson 1989 ; Thompson et al. 2001 ; Brenna et al. 2012 , 2015 ; White et al. 2012 ; Martel et...