Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5577
EASTING   578020     NORTHING   6059972     ZONE   14     DATUM   NAD83
Date of mapping    07/12/1984

STRUCTURAL DATA

PETROLOGIC DATA

Rock Number: 1

Rock Type: dacite
Descriptors:
fragmental

Field Description:

-as at previous station, both mass and frag. dacite porphyrics
-probably represent massive and brecciated felsic flows
-mass unit have rectilinear fract. patt. with HB alteration
-this is highly deformed into a streaked felsite and amphibolite schist
-the massive material appears to lie to the SW and breccia to NE
-the outcrop is tightly folded and faulted (see photos)

Minerals of Note
Mineral Abundance (%)
garnet

Rock Number: 2

Rock Type: amphibolite
Descriptors:
layered
basaltic composition

Field Description:

-one 2 m layer of highly deformed basaltic rock lying contained in the fragmental dacite
-it is tightly folded and faulted
-it appears to be a thin, brecciated basaltic layer

Minerals of Note
Mineral Abundance (%)
garnet


Manitoba Geological Survey, 2017