Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5537
EASTING 569758 NORTHING 6054377 ZONE 14 DATUM NAD83
Date of mapping 07/05/1984

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 71 | 79 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: greywacke
Descriptors:
layered
semipelitic
Field Description:

-highly injected sequence of grey to greenish beige biotite rich sandstones
-some layers have abundant muscovite +/- sillimanite faserkiesel
-rare pelitic beds, generally preferentially invaded by granite or pegmatite and reduced to schlieren

Minerals of Note
Mineral | Abundance (%)
garnet

Rock Number: 2

Rock Type: granite
Descriptors:
muscovite and biotite bearing
Field Description:

-textural relations as at previous station
-although at this location med. to coarse grained GRNT and swirocute?? granite is dominant
-tourmaline makes its first appearance since station 5527
-it appears this may be near the V?? limit of granite intrusion, containing pegmatite starting to dominate

Manitoba Geological Survey, 2017