Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 83 STATION 5018
EASTING 567957 NORTHING 6043933 ZONE 14 DATUM NAD83
Date of mapping 06/19/1983

STRUCTURAL DATA

Layering:
Layering type | Strike | Dip | top Direction
metamorphic layering | 84 | 47 |

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 84 | 47 |

Linear Structures
Type | Plunge | Azimuth
mineral lineation | 29 | 123

PETROLOGIC DATA

Rock Number: 1

Rock Type: amphibolite
Descriptors:
layered
volcanic derived
epidosite
carbonate pods or veins
possible tuff
possible sediment
Field Description:

-highly deformed with epidosite and carbonate? pods containing vugs with euhedral black hornblende and almandine
-much of exposure may be tuff or sed. but can't tell
-Epidosite rich layers are probable flows

Textural Features
Type | Mineral | Min. Size | Max. Size | Abundance (%) | Unit
groundmass grainsize |  | 0.3 | 0.0 |  |

Minerals of Note
Mineral | Abundance (%)
garnet
hornblende
epidote

Rock Number: 2

Rock Type: pegmatite
Descriptors:
layered
granitic
aplitic
3 to 4 metres wide
Field Description:

-3 to 4 m dike of aplite and coarse granite with pegmatitic core
samples:
2A- massive blocky microcline from core
2B- muscovite and garnet in aplite material from above core
2C- aplitic matierial and microcline from Upper margin

Minerals of Note
Mineral | Abundance (%)
muscovite
garnet
potassium feldspar

Manitoba Geological Survey, 2017