Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 85 STATION 6015
EASTING 574949 NORTHING 6044611 ZONE 14 DATUM NAD83
Date of mapping 06/07/1985

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 2 | 20 |

-2 photos (unlabelled) from boat showing seds at low angle climbing over granite margin

PETROLOGIC DATA

Rock Number: 1

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

-extensivly altered and recrystallized by intrusion of the main body of CWB.
-little can be recognized over than mafic HB rich character; suggesting volcanic origin
-foliation and layering seem to correspond to contact with gray granite to the west
-once again suggesting the supracrustals are drapped over a dome margin

Rock Number: 2

Rock Type: granite
Descriptors:
massive
leucocratic
Field Description:

-Granite contains minor amounts of granite adjacent to contact of supracrustals but otherwise resembles main phase of CWB complex
-Only exception to this is fact it has undergone hardly any shearing or tectonic disruption.
-fine grain chill(?)
CA-G-28

Manitoba Geological Survey, 2017