...Alexander U. Falster; Thomas W. Buchholz; William B. Simmons Abstract The Proterozoic Wausau syenite complex, exposed in central Marathon County, Wisconsin, is an A1-type within-plate granitoid consisting of four intrusive centers. The Nine Mile pluton is the youngest and most siliceous intrusion...

...Fig. 1. Location of the Wausau Complex shown on a US map and schematic drawing of the syenite complex and its four intrusive centers. Red star indicates the pseudobrookite location. Modified from Laberge & Myers (1983) . ...

... spaced pegmatite districts that are temporally associated with two distinct post-orogenic tectonic events are compared and contrasted in this study. The pegmatite districts include the circa 1.5 Ga Wausau syenite complex (WSC), in Wisconsin, the 1.0 Ga South Platte (SP), in Colorado, circa 1.6 Ga Trout...

... in portions of the batholith and in associated plutons (Wausau syenite complex) and equilibrium considerations suggest a shallow emplacement depth (i.e., <4 km). However, these data contrast with published Rb/Sr biotite ages, which suggest much of the batholith was uplifted through mid-crustal temperatures...

...Eugene E. Foord; Paul B. Moore Abstract A symposium on “Alkaline Complexes” was organized by Mr. A. U. Falster, Dr. P. B. Moore, and Dr. E. E. Foord and sponsored by the Mineralogical Society of America. The symposium was held in Wausau, Wisconsin during September 16—18, 1983. Due largely...

... and geochemistry of NYF-type pegmatites of the Wausau complex in Marathon County, Wisconsin, and the LCT-type pegmatites of Florence County, Wisconsin (cf. Falster 1981 ; Falster et al. 1996 , 2000 , 2001 , 2011 ; Martin and Falster 1986 ). He has been a coauthor on the descriptions of seven new pegmatite...

... (1994 , 2018 ). Subdivisions of Pembine-Wausau terrane from DeMatties (1994 , 2018 ). LRVC = Ladysmith-Rhinelander volcanic complex. ...

... 235 and U 238 half-lives or an age of 1,485 ± 15 m.y. based on recently redetermined values. Rb-Sr data also show that the syenite complex of the Wausau area is approximately, if not exactly, the same age as the Wolf River Batholith. The Wolf River Batholith is similar in age to other granites...

... and plutonic rocks dated in this study are similar in age to the rhyolites associated with the Back Forty (ca. 1844 Ma) and Mountain (ca. 1833 Ma) VMS deposits in the Pembine volcanic complex ( Quigley, 2016 ), and coeval with a restricted volcanic succession in the southern part of the terrane (near Wausau...

... portion of the Pembine-Wausau subterrane is known as the Wausau volcanic complex, and it is composed of dominantly calc-alkaline felsic volcanic rocks ( LaBerge and Myers, 1984 ). The Wausau volcanic complex was estimated to have formed between 1845 and 1835 Ma ( LaBerge and Myers, 1984 ), and this has...

... drilling also established production in the Mooringsport formation. Wausau field .—The Chismor Company’s Wausau 28-6 No. 1, Wausau field discovery, located SE. 1 4 , SE. 1 4 , NW. 1 4 , sec. 28, T. 8 N., R. 9 W., Wayne County, Mississippi, was drilled to 12,510 ft...

... subprovince of the Superior Province (MRV), Penokean foreland terrane (PFT), Midcontinent rift system (MRS), Penokean Pembine-Wausau arc terrane (PPW), Archean Marshland terrane (MAT), and Yavapai terrane (YVP). Major structures include the Great Lakes tectonic zone (GLTZ), Niagara fault zone (NFZ...

... heterogeneity indicated by the distribution of accessory minerals in pegmatites of the Nine Mile pluton of the Wausau syenite complex, Marathon county, Wisconsin . Canadian Mineralogist 50 , 1055 – 1070 . Foord, E. E., O'Connor...

... by María Florencia Márquez-Zavalía and colleagues; mineralogical and mineral-chemical heterogeneity indicated by the distribution of accessory minerals in pegmatites of the Nine Mile pluton of the Wausau syenite complex, Marathon County, Wisconsin by Al U. Falster and colleagues; compositional...

... minerals in pegmatites of the Nine Mile pluton of the Wausau syenite complex, Marathon County, Wisconsin by Al U. Falster and colleagues; compositional and structural variations in columbite-group minerals from granitic pegmatites of the Brunswick and Oxford fields, Maine, related to F-poor and F-rich...

... to be anorogenic because, although some of the pluton analyses plot in within the compositional range of post-orogenic granite, most of the analyses plot solely within the WPG field. Lastly, although the analyses from the Nine Mile Pluton in the Wausau Complex, Wisconsin plots in the field of overlap...