Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5449
EASTING 576279 NORTHING 6060748 ZONE 14 DATUM NAD83
Date of mapping 06/22/1984

STRUCTURAL DATA

-no location -- general description of north shore of Beryl Island

PETROLOGIC DATA

Rock Number: 1

Rock Type: conglomerate
Field Description:

-walked from volcanics on NE tip along N shore
-entire shore is tighly folded
-volcanics seem to be Z folded back into lake and the mafic conglomerate along shore goes into lake
-sorted conglomerate unit is much abbreviated, then the festoon sandstone follows the shore often folded in with trough and cross bed unit for half the length of the island
-trough and cross bed unit occured along rest of shore
-whole shore of island has numerous mylonites axial planar to folds
-the dike seem to occupy the mylonite zones and are rodded in the axial plunge of the Z assymetric folds along the shore (see field notes for brief diagram)

Manitoba Geological Survey, 2017