Belleview Heights, Sherbrooke TE, Estrie, Québec, Canadai
|Regional Level Types|
|Belleview Heights||Claim (Abandoned)|
|Sherbrooke TE||Territory Equivalent to a Regional County Municipality|
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Latitude & Longitude (WGS84):
45° 20' 52'' North , 71° 54' 9'' West
Latitude & Longitude (decimal):
Claim (Abandoned) - last checked 2018
Deposit first discovered:
Köppen climate type:
Other/historical names associated with this locality:
The former mine facilities are located 6.4 km from the SSW in downtown Sherbrooke and less than 1 km east of the village of Belvédère-Heights.
Comment - morphology: The original mineralized zone consisted of an ore stratum 1.5 to 1.8 m thick, oriented N220/72, which had been identified to a depth of 60 m. Two very irregular shear zones were associated with it where disseminated mineralization sometimes formed small pockets of ore up to 60 cm wide and nearly 8 m long. In addition, lenticular clusters of vein material injected the encasing material, parallel to the S1 schistosity (N040-090 /35-75). These clusters were more than 2 m wide.
Comment - discovery: A deposit with outcrop discovered in 1859 by prospecting.
Comment - lithology: Mineralization is found in several types of rocks: granite, iron formation and chlorite or iron carbonate shales. The granite is equigranular and rich in iron carbonate. It contains 5% quartz, 25% plagiocla se, 50% iron carbonate, 5% chlorite and 15% opaque minerals. Iron formation is on carbonate facies and horizons of magnetite chert are present. The lithologies are intersected by quartz-sulphide veins parallel to magnetite-hematite microlithons in the chert. Shales consist of mafic metavolcanites as well as felsic quartz metapyroclastics. The main mineralization is associated with quartz veins and a locally folded iron ion horizon hosted in chlorite and carbonate schists.
Comment - mineralization: Mineralization occurs in disseminated form in granite, schists and an iron formation horizon as well as in association with quartz veins and veins. The black chert horizon contained disseminated or semi-massive sulphides with an alternation of quartz microlitons with idioblastic pyrite, chalcopyrite and sphalerite, and magnetite and hematite microlitons. In the veinlets, mineralization consists of 10% chalcopyrite and 5% py rite
Comment - substance: TENORS - 5.4 t ore samples (RAP. QUEBEC MINES, 1898): 14% Cu, 60.03 g/t Ag ; - Drilling (GM 48034) : A-87-1 : 1.15 g/t Ag over 3 m ; A-87-5 : 3.3 g/t Ag over 0.7 m ; - Selected samples (MB 86-47 and MB 89-20) : H1-1 : 2300 ppm Cu, 2800 ppm Zn, 730 ppm Pb, 500 ppb Hg and 4.3 g/t Ag ; H1-2 : 56300 ppm Cu, 480 ppm Zn, 310 ppm Pb and 17 g/t Ag.
Comment - structural control: Magnetite-hematite mineralization is stratiform (S0) and ribbon-shaped. For the other lithologies, mineralization is concentrated preferentially in the S1 schistosity planes (MB-86-47). This schistosity varies from direction N040 to N09 0 with a dip of 35 to 75 degrees. Two mineralized shear zones are also visible.
Comment - alteration: Carbonation is intense and represented by rhombohedra of iron carbonates (ankerite) and the percentage reaches 60% in the vicinity of the magnetite chert. It is consistent with both sides of this iron formation.
Typology: Copper vein
Comment - typology: Typology: Dyke hydrothermal mineralization and pyrite replacement along an iron level. Genesis: Sulphides are syngenetic products that are contemporary to the establishment of volcanics that have subsequently been metamorphosed into chlorite schists. During the orogenic phase that resumed these chlorite shales, sulphides migrated to areas of lower pressure: fold axis or fractures. In this case, these are drive folds that have been sheared.
Comment - production: Approximately 1000 tonnes of ore were produced between 1851-1864, 1898-1899 and 1905-1907. The content varied between 8 and 14% copper.
Tonnage of reserves :
Category reserves :
Date calculation of reserves :
Reference document reserve:
Comment - reservations :
Release date: 1982010101
Document number : AP 1889-01, MAP 1619, DV 83-03, DV 85-08, ES 004, AND 90-02, GM 01415-A, GM 02469-A, GM 03757-C, GM 04613, GM 12438, GM 12840-B, GM 32851, GM 40428, GM 40430, GM 41152, GM 48032, GM 48033, GM 48034, GM 48035, GM 48523, GM 50787, MB 86-05, MB 86-46, MB 86-47, MB 89-20, OM 1898, OM 1899, OM 1900, OM 1901, OM 1902, OM 1903, OM 1905, OM 1907, OM 1908, OM 1910, OM 1915, OM 1916, RP 530, S 072, all
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Visit by Fred Schuster in 2017. Behind auto cemetery there was rubble and a closed shaft.
I took some samples that day.
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