Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5410
EASTING 577024 NORTHING 6060982 ZONE 14 DATUM NAD83
Date of mapping 06/14/1984

STRUCTURAL DATA

-unregistered #1 claim post
-Sept. 1980, S. Parker probably Tanco

PETROLOGIC DATA

Rock Number: 1

Rock Type: conglomerate
Descriptors:
polymictic
Field Description:

-section from north point to middle of island as follows:35 metres south facing moderatly sorted pebble conglomerate with rare calcareous arenite interbeds 10 to 40 cm thick
-clast size--> fairly constant at 4 x 10 cm
-overlain by 4 metres of dark grey semipelitic matrix supported conglomerate
-50 metres of interlayered trough crossbedded quartz rich sandstone and poorly sorted but slightly graded channel conglomerates overlain by a thick section of coarse unsorted ungraded clast supported conglomerate with a clast range from granule to metre sized boulder
-clast composition extremly heterolithic, including intermediate to ultramafic intrusives
-granitoids of all types and many types of sediments including clasts of matrix supported conglomerate
-grey coarse grained grannodiorite is the single dominant clast type at about 20%
-there is greater than 100 metres exposed with no significant variation
************
revisit later to this belt shows that there are large isoclinal folds causing tops reversals. The interpreted largely monoclinal section is in error and bed thicknesses largely meaningless

Manitoba Geological Survey, 2017