Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6383
EASTING 564581 NORTHING 6048142 ZONE 14 DATUM NAD83
Date of mapping 07/17/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 45 | 85 |
cataclastic foliation | 274 | 59 |

-photos 1 and 2
-sygmodial rotation of phenocrysts originally aligned into 270 into 050

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
megacrystic
biotite
Field Description:

-dominant structural fabric for outcrop has shifted 050
-phenocryst alignment is obviously still 270 direction along with augening and development of feldspathic pressure shadows and the early granitic 'lit'
-F2 was measured on a 5 cm schlieric cataclastic zone
-050 direction is a BO fabric and a new plane of augen development accompanied by younger Granitic and pegmatitic lit
-early layering is extensivly folded as NE plunging isoclinal Z-assymetric folds
-the axis of the folds appears to be the 2-intersection of F1 + F2
-many of megcrysts of microcline show a true blue-->yellow blue moonstone opalescence
-this indication of microlaminar perthite doesn't appear to have any comp. significance at this location

Manitoba Geological Survey, 2017