Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5505
EASTING   576581     NORTHING   6042511     ZONE   14     DATUM   NAD83
Date of mapping    06/29/1984

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 40 65

-west side of outcrop all along island shore has numerous screens of HB, GR, GRDR

PETROLOGIC DATA

Rock Number: 1

Rock Type: tonalite
Descriptors:
porphyritic
leucocratic

Field Description:

-strange rock 1/2 between WJ and Clearwater Bay units
-it is leucocratic, white weathering, slightly schlieric like Clearwater Bay, however it is slightly porphyritic and quartz rich with an interlocking quartz agg. fabric similar to WJ GRDR
-feldspars and quartz show a random pinking from hematites
-outcrop is also cut by white pegmatites
-provisionally I will assign this to Clearwater Bay


Manitoba Geological Survey, 2017