Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 83 STATION 5012
EASTING 567539 NORTHING 6044306 ZONE 14 DATUM NAD83
Date of mapping 06/18/1983

STRUCTURAL DATA

Dikes and Sills:
Rock Number | Type | Width (m) | Strike | Dip
0 | aplite dike or vein | 0.00 | 76 | 43

Linear Structures
Type | Plunge | Azimuth
mineral lineation | 32 | 216

-several distorted pegmatite dikes with shear textures; widths from 5 to 20 cm
-late aplite/pegmatites - non-deformed but with lineated contacts

PETROLOGIC DATA

Rock Number: 1

Rock Type: tonalite
Descriptors:
gneissic
leucocratic
grey
schlieric or schlieren present
Field Description:

-usual grey old tonalite gneiss schlieric, highly contorted

Rock Number: 2

Rock Type: granodiorite
Descriptors:
massive
biotite
Field Description:

-same grey granodiorite < 1/2 % plagioclase phenocrysts

Textural Features
Type | Mineral | Min. Size | Max. Size | Abundance (%) | Unit
phenocryst | plagioclase | 0.0 | 0.0 |  |

Manitoba Geological Survey, 2017