Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5453
EASTING   572241     NORTHING   6054422     ZONE   14     DATUM   NAD83
Date of mapping    06/23/1984

STRUCTURAL DATA

Layering:
Layering type Strike Dip top Direction
bedding 39 90

Minor Folds
Type Symmetry Strike Dip Plunge Azimuth
ptygmatic fold 0 0 58 236

-walked around island, general description from west to east

PETROLOGIC DATA

Rock Number: 1

Rock Type: sandstone

Field Description:

-sequence of siltstones, protoquartzites, quartzites, MV-feldspathic arenite and calc-arenite

SAMPLE
A -protoquartzite
B -quartz and calcarenite
C -calcarenite

-general sequence W to E is siltstone, quartz, calcarenite gradually enriching in alumina through shaley siltstone (muscovite blastic) into a 30 m section rich in calcareous sandstone and calcsilicate, then into muscovite blastic feldspathic sandstone with rare channel deposits of conglomerate (granite pebble dominant) then into festoon bedded sands with interbeds of shaley sandstone
-facing direction is unknown


Manitoba Geological Survey, 2017