Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 83
STATION 5072
EASTING 572247
NORTHING 6041776
ZONE 14
DATUM NAD83
Date of mapping 06/26/1983
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
cataclastic foliation | 67 | 55 |
-1 photo augen (see below)
-1 photo of point to SE showing large size of volcanic amphibolite rafts running full lengths of point
PETROLOGIC DATA
Rock Number: 1
-old schlieric tonalite intruded by numerous potassic quartz rich pegmatites and a few beige aplites
-excellent developement of augen structures
-0ne particular augen of microcline from a pegmatite is rhombic with granular quartz filled pressure shadows (see photo)
Mineral | Abundance (%) |
---|
garnet |
PHOTOS
Quartz-microcline augen formed by boudinage and shearingg of granitic pegmatite veins. Young shear refracts along the right side of the augen.
View of the shoreline to show the size of the amphibolite rafts in the leucotonalite
Manitoba Geological Survey, 2017