Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6285
EASTING 569377 NORTHING 6047415 ZONE 14 DATUM NAD83
Date of mapping 07/04/1986

STRUCTURAL DATA

Layering:
Layering type | Strike | Dip | top Direction
bedding | 291 | 69 |

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 291 | 69 |

-appears to be parallel to shearing as there is resemblence continuity of layering across outcrop
-flattening extreme, tiny reef 5 m exposed 30 m under water

PETROLOGIC DATA

Rock Number: 1

Rock Type: conglomerate
Descriptors:
pebbly
mafic
Field Description:

-section of mafic BO+/-HB matrix pebble conglomerate and budded mafic to leucocratic BO wackes
-pebbles include granitic, quartz and highly flattened mafic (probably volcanic)
-minor interbedds of calcsilicate bearing sands--10 to 25 cm thick
-foliation invaded by pink and white mottled pegs that are sheared to near mylonite texture
-there are thin amphibolitic horizons (SAMPLE B) that average 15 cm and are continuous across outcrop
-conglomerate matrix appears to be a dirty feldspathic sand-deformation too high to recognize lithic fragments

Minerals of Note
Mineral | Abundance (%)
hornblende

Manitoba Geological Survey, 2017