Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 83 STATION 5095
EASTING 573397 NORTHING 6039825 ZONE 14 DATUM NAD83
Date of mapping 07/07/1983

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 72 | 80 |

-outcrop cut by several lightly sheared to severly deformed pegmatites
-well developed quartz cores but plagioclase is dominant in intermediate zones

PETROLOGIC DATA

Rock Number: 1

Rock Type: amphibolite
Descriptors:
pillowed
volcanic derived
Field Description:

-sequence of massive and pillowed flows
-selvages totally disrupted, contorted, all that remains are fragments of hornblendic matierial and scattered diopside (epidote) pods

Rock Number: 2

Rock Type: granite
Descriptors:
massive
leucocratic
Field Description:

Dike
-buff weathering unit with pink and grey fresh surface
-3 m. dikes cutting volcanic. but extensively boudinaged

Textural Features
Type | Mineral | Min. Size | Max. Size | Abundance (%) | Unit
groundmass grainsize |  | 0.0 | 5.0 |  | mm
mafic mineral | biotite | 0.0 | 0.0 | 2.0 | %

Manitoba Geological Survey, 2017