Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 83
STATION 5080
EASTING 572563
NORTHING 6039704
ZONE 14
DATUM NAD83
Date of mapping 06/27/1983
STRUCTURAL DATA
Layering type | Strike | Dip | top Direction |
---|---|---|---|
igneous cumulous layering | 317 | 39 | NE |
Layering measurement cumulous layering in gabbro.
PETROLOGIC DATA
Rock Number: 1
-Excellant exposure of cumulous layered anorthositic gabbro.
-Clinopyroxene/plagioclase layers indicate tops upright to west by cumulous grading.
-Shore since last station all gabbro with occasional roof pendant screens of tonalite gneiss and pegmatite.
-Photos of cumulate layering
PHOTOS
Beautiful outcrops of gabbro-norite with well developed orthocumulates of pyroxene - plagioclase defining igneous layer of 317/39, tops upright to the west.
Overview of the same location as previous photo.
Delicate orthocumulates showing cross bedding, slumps and drapes.
Orthocumulates in Molson gabbro - norite dike.
Manitoba Geological Survey, 2017