Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 83 STATION 5010
EASTING 568003 NORTHING 6044671 ZONE 14 DATUM NAD83
Date of mapping 06/18/1983

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
gneissosity | 45 | 34 |

Dikes and Sills:
Rock Number | Type | Width (m) | Strike | Dip
2 | pegmatite | 0.20 | 314 | 71

PETROLOGIC DATA

Rock Number: 1

Rock Type: tonalite
Descriptors:
gneissic
porphyritic
Field Description:

-as previous on this side of bay < 1% feldspar megacrysts 3 - 15 mm??

Textural Features
Type | Mineral | Min. Size | Max. Size | Abundance (%) | Unit
mafic mineral |  | 0.0 | 0.0 | 6.0 | mm
phenocryst | plagioclase | 15.0 | 3.0 |  |

Rock Number: 2

Rock Type: pegmatite
Descriptors:
granitic
Field Description:

-2 feldspar biotite pegmatite
-Massive, no zoning and slightly deformed by foliation plane

Minerals of Note
Mineral | Abundance (%)
biotite
plagioclase
potassium feldspar

Manitoba Geological Survey, 2017