Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6296
EASTING 569890 NORTHING 6047773 ZONE 14 DATUM NAD83
Date of mapping 07/07/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 288 | 56 |

Linear Structures
Type | Plunge | Azimuth
rodding | 38 | 84

-elongation of quartz and feld. aggregates

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
augened
leucocratic
Field Description:

-QZ- 25%-- White weathering medium grained with quartz around fels. agg. augen
-disseminated red granite
-youngest unit (except for aplite/peg.) at 6284
-numerous inclusions and schlieren

Minerals of Note
Mineral | Abundance (%)
garnet

Rock Number: 2

Rock Type: amphibolite
Descriptors:
cataclastic
biotite - hornblende bearing
Field Description:

-sheared and injected, bleached looking massive rock-probably basalt inclusion

Rock Number: 3

Rock Type: pegmatite
Descriptors:
cataclastic
aplitic
Field Description:

-red glasy almost mylonitic granititic dikes
-5 to 50 cm wide

Rock Number: 4

Rock Type: granodiorite
Descriptors:
cataclastic
biotite
Field Description:

-grey weathering older more mafic augen gneiss
-largely included in rock 1
-this is the major rock of 6284

Manitoba Geological Survey, 2017