Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6520
EASTING 582717 NORTHING 6064828 ZONE 14 DATUM NAD83
Date of mapping 08/02/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 69 | 90 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
augened
biotite
Field Description:

-slightly coarser and whiter weathering with increased quartz
(30 %) and feld augens up to 5 mm that may been phenocrysts
-contact with supracrystals?? tectonic net intrusive-fault contrast with fault occupied by mylonitized pegmatite

Rock Number: 2

Rock Type: sandstone
Descriptors:
cataclastic
psammitic
Field Description:

-sample to north side of RK3 against fault, some b south of RK3
-laminated sandstones-have some of the characteristics of the matierial to south-pyro island association
-too sheared to tell bed forms

Rock Number: 3

Rock Type: amphibolite
Descriptors:
massive
ultramafic composition
Field Description:

-single layer of dense heavy black hornblendite matierial 50 to 70 cm thick
-highly tectonized-can't tell if it is almost ultramafic sed. in dike

Minerals of Note
Mineral | Abundance (%)
garnet

Manitoba Geological Survey, 2017