Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 83 STATION 5112
EASTING 575516 NORTHING 6042426 ZONE 14 DATUM NAD83
Date of mapping 07/09/1983

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
gneissosity | 43 | 53 |
fault | 312 | 73 |

Linear Structures
Type | Plunge | Azimuth
rodding | 40 | 89

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
schlieric or schlieren present
biotite
Field Description:

-rock has become "two component schlieric gneiss" with 5 % porphyritic grey granodiorite (sample 1B) 20 % injected granodiorite lit (mainly pegmatitic). The remainder coarse grey granodiorite with insipient development of augen. A few rafts of layered amphibolite are preserved with little observed assimilation
-development of the late cross fault pattern is very strong with fracture spacing ranging from 25 cm to 3 m

Minerals of Note
Mineral | Abundance (%)
hornblende

Manitoba Geological Survey, 2017