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Pascal, Marjolaine; Boiron, Marie-Christine; Ansdell, Kevin; Annesley, Irvine R; Kotzer, Tom; Jiricka, Dan; Cuney, Michel (2015): Microthermometry and Raman analysis of fluid inclusions in different generations of quartz veins of the Athabasca Basin [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.842980, Supplement to: Pascal, M et al. (2016): Fluids preserved in variably altered graphitic pelitic schists in the Dufferin Lake zone, south-central Athabasca Basin, Canada: Implications for graphite loss and uranium deposition. Mineralium Deposita, 51(5), 619-636, https://doi.org/10.1007/s00126-015-0628-6

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Abstract:
The Athabasca Basin (Canada) contains the highest grade unconformity-type uranium deposits in the world. Underlying the Athabasca Group sedimentary rocks of the Dufferin Lake zone are variably graphitic pelitic schists (VGPS), altered to chlorite and hematite (Red/Green Zone: RGZ), and locally bleached near the unconformity during paleoweathering and/or later fluid interaction, leading to a loss of graphite near the unconformity.
Fluid inclusions were examined in different generations of quartz veins, using microthermometry and Raman analysis, to characterize and compare the different fluids that interacted with the RGZ and the VGPS. In the VGPS, CH4-, N2- and CO2-rich fluids circulated. CH4- and N2-rich fluids could be the result of the breakdown of graphite to CH4/CO2, whereas N2-rich fluid is interpreted to be the result of breakdown of feldspars/micas to NH4+/N2. In the RGZ, highly saline fluids interpreted to be basinally derived have been recorded. The circulation of the two types of fluids (carbonic and brines) occurred at two different distinct events: 1) during the retrograde metamorphism of the basement rocks before the deposition of the Athabasca Basin for the carbonic fluids, and 2) after the deposition of the Athabasca Basin for the brines. Thus, in addition to possibly be related to graphite depletion in the RGZ, the brines can be linked to uranium mineralization.
Coverage:
Latitude: 57.486740 * Longitude: -107.694910
Event(s):
Athabasca_Basin * Latitude: 57.486740 * Longitude: -107.694910 * Location: Canada
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Sample code/labelSample labelPascal, Marjolaine
ZoneZonePascal, Marjolaine
Quartz typeQz typePascal, Marjolaine
Fluid inclusionFIPascal, Marjolaine
Melting temperatureTm°CPascal, Marjolaineice
Melting temperatureTm°CPascal, Marjolainehalite
Melting temperatureTm°CPascal, MarjolaineCO2
Homogenization temperatureTh°CPascal, MarjolaineCO2
Melting temperatureTm°CPascal, Marjolaineclathrates
10 Homogenization temperatureTh°CPascal, Marjolainetotal
11 Homogenization temperatureTh°CPascal, Marjolaineto the vapor phase for the monophase vapor fluid inclusions
12 Carbon dioxideCO2%Pascal, MarjolaineRaman spectrometrywt. %
13 MethaneCH4%Pascal, MarjolaineRaman spectrometrywt. %
14 Nitrogen, gasN2%Pascal, MarjolaineRaman spectrometrywt. %
Size:
935 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Sample label

Zone

Qz type

FI

Tm [°C]
(ice)

Tm [°C]
(halite)

Tm [°C]
(CO2)

Th [°C]
(CO2)

Tm [°C]
(clathrates)
10 
Th [°C]
(total)
11 
Th [°C]
(to the vapor phase for the mo...)
12 
CO2 [%]
(wt. %)
13 
CH4 [%]
(wt. %)
14 
N2 [%]
(wt. %)
SW42-484.0variably graphitic pelitic schistQ2monophase CH4-rich fluid inclusion-79.0
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-128.41.411.986.7
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-128.41.611.786.7
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-128.41.111.987.0
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-100.81.911.087.1
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-133.4
SW42-484.0variably graphitic pelitic schistQ2monophase CH4-rich fluid inclusion-93.9
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-137.3
SW42-484.0variably graphitic pelitic schistQ2monophase CH4-rich fluid inclusion-100.8
SW42-484.0variably graphitic pelitic schistQ2monophase CH4-rich fluid inclusion-81.095.54.5
SW42-484.0variably graphitic pelitic schistQ2monophase CH4-rich fluid inclusion-79.0
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-134.313.486.3
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-130.412.287.8
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-130.4
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-152.116.883.2
SW42-484.0variably graphitic pelitic schistQ2monophase CH4-rich fluid inclusion-91.9
SW42-484.0variably graphitic pelitic schistQ2monophase CH4-rich fluid inclusion-88.9
SW42-484.0variably graphitic pelitic schistQ2monophase CH4-rich fluid inclusion-85.0
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-150.1
SW42-484.0variably graphitic pelitic schistQ2monophase CH4-rich fluid inclusion-74.116.477.26.4
SW42-484.0variably graphitic pelitic schistQ2monophase CH4-rich fluid inclusion-79.085.314.7
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-125.5
SW42-484.0variably graphitic pelitic schistQ2monophase CH4-rich fluid inclusion-79.0
SW42-484.0variably graphitic pelitic schistQ2monophase N2-rich fluid inclusion-128.4
SW18-495.0variably graphitic pelitic schistQ2aqueous-carbonic fluid inclusions homogenizing to liquid phase-0.9-57.721.39.4315.395.33.01.7
SW18-495.0variably graphitic pelitic schistQ2aqueous-carbonic fluid inclusions homogenizing to liquid phase-0.2-56.925.08.5312.996.21.72.1
SW18-495.0variably graphitic pelitic schistQ2aqueous-carbonic fluid inclusions homogenizing to vapor phase-57.621.79.0323.4
SW18-495.0variably graphitic pelitic schistQ2aqueous-carbonic fluid inclusions homogenizing to vapor phase-56.923.38.0324.6
SW18-495.0variably graphitic pelitic schistQ2aqueous-carbonic fluid inclusions homogenizing to vapor phase-57.821.09.9333.9
SW18-495.0variably graphitic pelitic schistQ2aqueous-carbonic fluid inclusions homogenizing to vapor phase-57.820.510.1338.0
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to liquid phase-57.224.8
SW18-515.0variably graphitic pelitic schistQ3monophase N2-rich fluid inclusion0.047.352.7
SW18-515.0variably graphitic pelitic schistQ3monophase CH4-rich fluid inclusion0.088.012.0
SW18-515.0variably graphitic pelitic schistQ3monophase CH4-rich fluid inclusion0.090.010.0
SW18-515.0variably graphitic pelitic schistQ3monophase CH4-rich fluid inclusion0.060.040.0
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to liquid phase-57.126.498.20.90.9
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to liquid phase-57.225.9
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to liquid phase-57.127.1
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to liquid phase-56.827.2
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to vapor phase-57.127.197.01.21.8
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to vapor phase-57.323.893.82.04.2
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to vapor phase-57.026.796.61.02.4
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to liquid phase-57.524.696.22.21.7
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to vapor phase-57.426.696.81.51.6
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to vapor phase-57.522.1
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to vapor phase-57.423.3
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to vapor phase-57.425.7
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to vapor phase-57.323.6
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to vapor phase-57.125.2
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to vapor phase-57.026.4
SW18-515.0variably graphitic pelitic schistQ3carbonic fluid inclusions homogenizing to vapor phase-56.827.6
SW18-515.0variably graphitic pelitic schistQ3low saline aqueous two-phase fluid inclusion-1.0194.1
SW18-515.0variably graphitic pelitic schistQ3low saline aqueous two-phase fluid inclusion-1.0255.5
SW18-515.0variably graphitic pelitic schistQ3low saline aqueous two-phase fluid inclusion-1.4223.5
SW18-515.0variably graphitic pelitic schistQ3three-phase fluid inclusion (V+L+Halite)94.3
SW18-515.0variably graphitic pelitic schistQ3three-phase fluid inclusion (V+L+Halite)98.1
SW18-515.0variably graphitic pelitic schistQ3three-phase fluid inclusion (V+L+Halite)102.0
SW18-515.0variably graphitic pelitic schistQ3three-phase fluid inclusion (V+L+Halite)146.7
SW18-382.5red/green zoneQ2three-phase fluid inclusion (V+L+Halite)193.182.6
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-25.5148.4
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-25.3115.4
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-25.3143.8
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-25.8123.5
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-25.9118.4
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-22.6146.2
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-31.5154.2
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-30.3181.3
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-29.5134.5
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-30.6
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-30.8126.3
SW18-382.5red/green zoneQ2monophase N2-rich fluid inclusion-137.322.177.9
SW18-382.5red/green zoneQ2monophase N2-rich fluid inclusion16.383.7
SW18-382.5red/green zoneQ2monophase N2-rich fluid inclusion14.785.3
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-31.6
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-31.2
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-32.5
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-20.6151.9
SW18-382.5red/green zoneQ2three-phase fluid inclusion (V+L+Halite)
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-25.3160.9
SW18-382.5red/green zoneQ2three-phase fluid inclusion (V+L+Halite)
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-31.6
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-25.9123.4
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-25.8123.0
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-24.8127.4
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-19.1134.4
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-20.7163.9
SW18-382.5red/green zoneQ2three-phase fluid inclusion (V+L+Halite)217.779.5
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-23.8141.9
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-17.3
SW18-382.5red/green zoneQ2three-phase fluid inclusion (V+L+Halite)197.493.7
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion207.8
SW18-382.5red/green zoneQ2three-phase fluid inclusion (V+L+Halite)212.083.1
SW18-382.5red/green zoneQ2three-phase fluid inclusion (V+L+Halite)216.569.1
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-23.1119.1
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-22.6111.2
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-26.5118.0
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-15.9
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-16.4107.5
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-10.6
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-16.5127.8
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-20.2120.8
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-23.1
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-20.0
SW18-382.5red/green zoneQ2high saline aqueous two-phase fluid inclusion-29.5131.0
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.7110.4
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-26.090.6
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.1106.2
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-24.9154.8
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-24.7136.2
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-23.5104.7
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-22.7111.0
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-26.997.7
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-28.2108.9
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.795.0
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-26.2
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.4119.5
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-29.4107.1
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-26.197.9
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-24.7146.2
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-35.599.3
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-26.8
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.1161.3
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.4121.2
SW18-382.5red/green zoneQ3three-phase fluid inclusion (V+L+Halite)189.7125.3
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-23.5124.3
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.6
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-24.5
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-23.6116.6
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.1126.9
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-23.9109.1
SW18-382.5red/green zoneQ3three-phase fluid inclusion (V+L+Halite)199.3100.3
SW18-382.5red/green zoneQ3three-phase fluid inclusion (V+L+Halite)239.0123.7
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.9114.3
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.6103.2
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.7113.7
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.6103.3
SW18-382.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-25.792.4
SW18-392.5red/green zoneQ3monophase CH4-rich fluid inclusion0.068.431.6
SW18-392.5red/green zoneQ3monophase CH4-rich fluid inclusion0.089.011.0
SW18-392.5red/green zoneQ3monophase CH4-rich fluid inclusion0.056.143.9
SW18-392.5red/green zoneQ3low saline aqueous two-phase fluid inclusion-1.0253.287.42.210.5
SW18-392.5red/green zoneQ3low saline aqueous two-phase fluid inclusion-1.0399.7
SW18-392.5red/green zoneQ3low saline aqueous two-phase fluid inclusion-1.2259.6
SW18-392.5red/green zoneQ3low saline aqueous two-phase fluid inclusion-1.2384.4
SW18-392.5red/green zoneQ3low saline aqueous two-phase fluid inclusion-1.2
SW18-392.5red/green zoneQ3low saline aqueous two-phase fluid inclusion-1.7
SW18-392.5red/green zoneQ3low saline aqueous two-phase fluid inclusion-2.0277.6
SW18-392.5red/green zoneQ3low saline aqueous two-phase fluid inclusion-2.9
SW18-392.5red/green zoneQ3low saline aqueous two-phase fluid inclusion-1.2>350.0
SW18-392.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-21.8199.2
SW18-392.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-38.4204.5
SW18-392.5red/green zoneQ3high saline aqueous two-phase fluid inclusion-27.4