Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 83 STATION 5152
EASTING 575729 NORTHING 6049133 ZONE 14 DATUM NAD83
Date of mapping 07/20/1983

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 256 | 88 |

Linear Structures
Type | Plunge | Azimuth
microcrenulation | 66 | 72

DIKE ANDERSON A-91
-local magnetic anomaly-24 degree variation in compass when 2" from outcrop to 3' above

PETROLOGIC DATA

Rock Number: 1

Rock Type: basalt
Descriptors:
pillowed
Field Description:

-dominantly highly stretched pillows with minor intermediate volcaniclastic sediments up to 1 m. thick
-dike intrusive into pillow unit only
-** sample of main dike contact for thin section to check for exomorphic effect

Rock Number: 2

Rock Type: pegmatite
Field Description:

-tourmalinized margin
-moderate to heavy shearing in foliation
-minor beryl in largely clevelandite+microcline+quartz
-quartz strung out in foliation plane and highly shattered
-small tourmalinized inclusions strung out in foliation plane
-potassium feldspar dark blue grey

Minerals of Note
Mineral | Abundance (%)
beryl
cleavelanditic albite

Manitoba Geological Survey, 2017