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• W2115622149 endingPage "430" @default.
• W2115622149 startingPage "407" @default.
• W2115622149 abstract "The Brookfield barite deposit occurs in the Carboniferous Maritimes basin of eastern Canada, an area known for ca. 300 Ma Mississippi Valley-type (MVT) Zn-Pb-Ba mineralization, including the past-producing Walton barite and Gays River Zn-Pb deposits. In contrast to most of MVT mineralization in the Maritimes Basin that is hosted by Visean carbonate rocks of the Windsor Group, the Brookfield deposit is hosted by red terrestrial clastics of the underlying Tournaisian Horton Group. The barite mineralization occurs as ≤25-m-wide fault fill with both coarse-textured, pristine barite and mylonitic-textured barite situated close to the Cobequid-Chedabucto fault system, separating the Meguma and Avalon terranes. The breccia vein mineralization has a simple mineralogy and consists of barite with up to 1.3 wt percent Sr, minor siderite, and trace amounts of late-stage quartz and calcite. The host rocks close to the barite mineralization are intensely altered, with quartz and kaolinite replacing muscovite and complete removal of diagenetic hematite. A Grant-type iso-con plot indicates mass loss (C A = 0.82*C O ) during wall-rock alteration with REE profiles maintained but relative chondrite-normalized abundances reduced. Although an Fe-Mn zone occurs a few 100 m along strike, no such mineralization occurs in the barite deposit. Fluid inclusion studies indicate that vein fluids were saline brines (20–30 wt % NaCl + CaCl 2 equiv) that co-existed with an immiscible N 2 -CO 2 -CH 4 gas. Laser Raman analysis of the most common gas-rich inclusions indicates a uniform fluid chemistry with 66 mol percent N 2 and 34 mol percent CO 2 and is consistent with compositions inferred from thermometric measurements. Homogenization temperatures for primary, aqueous fluid inclusion asemblages in quartz intergrown with barite indicate minimum trapping temperatures of 210°C. Conditions at the time of entrapment, based on intersection of aqueous and gaseous isochores, are estimated at ~775 bars and 250°C. Stable isotope data for vein minerals (barite, siderite, quartz) are uniform in nature and indicate δ 18 O fluid = +12 per mil at 250°C for siderite and +9.8 per mil for quartz, δ 13 C fluid = −4 to −6 per mil from siderite, and δ 34 S fluid = +12 per mil from barite. Fluid inclusion extracts indicate δD values of −47 to −71 per mil. Collectively, these isotopic compositions are consistent with a basinal-type fluid derived from modified meteoric water with sulfur derived from Carboniferous evaporites and carbon of mainly marine limestone origin (i.e., Carboniferous Windsor Group) with a minor biogenic component from the Horton Group. Mineralization at Brookfield resulted from focusing of heated, overpressured brines of modified basinal origin into an active fault zone environment. The association of the barite mineralization with intensely altered wall rock represents a rare example of such alteration in the MVT metallogenic domain of the Maritimes Basin. However, similar alteration associated with Ba-Fe-Mn mineralization along the Cobequid-Chedabucto fault system raises the possibility that the Brookfield deposit may instead be part of another mineralizing event that was distinct from the 300 Ma MVT deposits." @default.
• W2115622149 created "2016-06-24" @default.
• W2115622149 creator A5033347479 @default.
• W2115622149 creator A5044570602 @default.
• W2115622149 creator A5051421265 @default.
• W2115622149 creator A5055783842 @default.
• W2115622149 date "2006-03-01" @default.
• W2115622149 modified "2023-10-18" @default.
• W2115622149 title "Structurally Controlled Vein Barite Mineralization in the Maritimes Basin of Eastern Canada: Geologic Setting, Stable Isotopes, and Fluid Inclusions" @default.
• W2115622149 cites W1577189249 @default.
• W2115622149 cites W1605383632 @default.
• W2115622149 cites W1862278568 @default.
• W2115622149 cites W1913227808 @default.
• W2115622149 cites W1945611584 @default.
• W2115622149 cites W1965321620 @default.
• W2115622149 cites W1970491926 @default.
• W2115622149 cites W1970658925 @default.
• W2115622149 cites W1986387139 @default.
• W2115622149 cites W1990626624 @default.
• W2115622149 cites W1991608935 @default.
• W2115622149 cites W1992582344 @default.
• W2115622149 cites W1995368736 @default.
• W2115622149 cites W2001781196 @default.
• W2115622149 cites W2009032167 @default.
• W2115622149 cites W2015330201 @default.
• W2115622149 cites W2021239497 @default.
• W2115622149 cites W2022304725 @default.
• W2115622149 cites W2028368142 @default.
• W2115622149 cites W2029471372 @default.
• W2115622149 cites W2033473502 @default.
• W2115622149 cites W2033986829 @default.
• W2115622149 cites W2034467201 @default.
• W2115622149 cites W2034564317 @default.
• W2115622149 cites W2043206064 @default.
• W2115622149 cites W2044779829 @default.
• W2115622149 cites W2045924083 @default.
• W2115622149 cites W2053678543 @default.
• W2115622149 cites W2058160427 @default.
• W2115622149 cites W2058594054 @default.
• W2115622149 cites W2058604689 @default.
• W2115622149 cites W2059638029 @default.
• W2115622149 cites W2061879288 @default.
• W2115622149 cites W2063334460 @default.
• W2115622149 cites W2064995242 @default.
• W2115622149 cites W2073502802 @default.
• W2115622149 cites W2073662608 @default.
• W2115622149 cites W2074349330 @default.
• W2115622149 cites W2076108837 @default.
• W2115622149 cites W2080835345 @default.
• W2115622149 cites W2081513756 @default.
• W2115622149 cites W2082623357 @default.
• W2115622149 cites W2090757504 @default.
• W2115622149 cites W2092041781 @default.
• W2115622149 cites W2096064288 @default.
• W2115622149 cites W2096430161 @default.
• W2115622149 cites W2098058434 @default.
• W2115622149 cites W2099366728 @default.
• W2115622149 cites W2101643093 @default.
• W2115622149 cites W2104732567 @default.
• W2115622149 cites W2114123657 @default.
• W2115622149 cites W2121347244 @default.
• W2115622149 cites W2121751250 @default.
• W2115622149 cites W2129151658 @default.
• W2115622149 cites W2139685188 @default.
• W2115622149 cites W2141152284 @default.
• W2115622149 cites W2141295458 @default.
• W2115622149 cites W2146468722 @default.
• W2115622149 cites W2152117779 @default.
• W2115622149 cites W2152195282 @default.
• W2115622149 cites W2164273970 @default.
• W2115622149 cites W2168746608 @default.
• W2115622149 cites W2169039021 @default.
• W2115622149 cites W2172174448 @default.
• W2115622149 cites W2191915062 @default.
• W2115622149 cites W2212178433 @default.
• W2115622149 cites W2218229335 @default.
• W2115622149 cites W2220256330 @default.
• W2115622149 cites W2231954208 @default.
• W2115622149 cites W2262671917 @default.
• W2115622149 cites W2290226880 @default.
• W2115622149 cites W2295385638 @default.
• W2115622149 cites W2336738242 @default.
• W2115622149 cites W2511549435 @default.
• W2115622149 cites W2603505797 @default.
• W2115622149 cites W2604279050 @default.
• W2115622149 cites W2908575629 @default.
• W2115622149 cites W2909664168 @default.
• W2115622149 cites W2910223640 @default.
• W2115622149 cites W2911165110 @default.
• W2115622149 cites W2921138524 @default.
• W2115622149 cites W2922413284 @default.
• W2115622149 cites W2979595134 @default.
• W2115622149 cites W2981554598 @default.
• W2115622149 cites W3105542397 @default.
• W2115622149 cites W3124283085 @default.
• W2115622149 cites W3134889740 @default.
• W2115622149 cites W3156577265 @default.
• W2115622149 cites W357535511 @default.

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