Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6340
EASTING 570775 NORTHING 6051172 ZONE 14 DATUM NAD83
Date of mapping 07/10/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 32 | 84 |

Linear Structures
Type | Plunge | Azimuth
mineral lineation | 48 | 16

PETROLOGIC DATA

Rock Number: 1

Rock Type: sandstone
Descriptors:
crossbedded
feldspathic
Field Description:

-interlayered sequence of massive, laminate crossbedded and faserkiesel rich grey feldspathic sands
-bedding is intensly Z-folded about west trending axes but grading indicates tops upright toward the south
-general trend of bedding is toward SE around 110 to 120 degrees
-axial planes of folds invaded by TL -rich egs.
-folding is to severe to be certain of be thicknesses but appear to be 30 to 60 cm
-cross bed features are distorted into almost random alignment of intersecting planes
-major z-folds are isoclinal and probably have an amplitude of 100+ m
-sporadic CLCC horizons with EP-HB-GR assembledge
-SAMPLE A massive
-SAMPLE B MV knot unit

Minerals of Note
Mineral | Abundance (%)
muscovite
sillimanite
tourmaline
garnet

Manitoba Geological Survey, 2017